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Krumel
2021-09-25 15:38:25 +02:00
commit dfe4c50611
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main/CMakeLists.txt Normal file
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set(COMPONENT_SRCS main.c ssd1306.c ssd1306_i2c.c ssd1306_spi.c)
set(COMPONENT_ADD_INCLUDEDIRS ".")
register_component()

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main/Kconfig.projbuild Normal file
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menu "Ethernet Configuration"
choice ETH_USE_ETHERNET
prompt "Ethernet Type"
default ETH_USE_INTERNAL_ETHERNET if IDF_TARGET_ESP32
default ETH_USE_DM9051 if !IDF_TARGET_ESP32
help
Select which kind of Ethernet will be used in the example.
config ETH_USE_INTERNAL_ETHERNET
depends on IDF_TARGET_ESP32
select ETH_USE_ESP32_EMAC
bool "Internal EMAC"
help
Select internal Ethernet MAC controller.
config ETH_USE_DM9051
bool "DM9051 Module"
select ETH_USE_SPI_ETHERNET
select ETH_SPI_ETHERNET_DM9051
help
Select external SPI-Ethernet module (DM9051).
endchoice
if ETH_USE_INTERNAL_ETHERNET
choice ETH_ETH_PHY_MODEL
prompt "Ethernet PHY Device"
default ETH_ETH_PHY_IP101
help
Select the Ethernet PHY device to use in the example.
config ETH_ETH_PHY_IP101
bool "IP101"
help
IP101 is a single port 10/100 MII/RMII/TP/Fiber Fast Ethernet Transceiver.
Goto http://www.icplus.com.tw/pp-IP101G.html for more information about it.
config ETH_ETH_PHY_RTL8201
bool "RTL8201/SR8201"
help
RTL8201F/SR8201F is a single port 10/100Mb Ethernet Transceiver with auto MDIX.
Goto http://www.corechip-sz.com/productsview.asp?id=22 for more information about it.
config ETH_ETH_PHY_LAN8720
bool "LAN8720"
help
LAN8720A is a small footprint RMII 10/100 Ethernet Transceiver with HP Auto-MDIX Support.
Goto https://www.microchip.com/LAN8720A for more information about it.
config ETH_ETH_PHY_DP83848
bool "DP83848"
help
DP83848 is a single port 10/100Mb/s Ethernet Physical Layer Transceiver.
Goto http://www.ti.com/product/DP83848J for more information about it.
endchoice
config ETH_ETH_MDC_GPIO
int "SMI MDC GPIO number"
default 23
help
Set the GPIO number used by SMI MDC.
config ETH_ETH_MDIO_GPIO
int "SMI MDIO GPIO number"
default 18
help
Set the GPIO number used by SMI MDIO.
endif
if ETH_USE_DM9051
config ETH_DM9051_SPI_HOST
int "SPI Host Number"
range 0 2
default 1
help
Set the SPI host used to communicate with the SPI Ethernet Controller.
config ETH_DM9051_SCLK_GPIO
int "SPI SCLK GPIO number"
range 0 33
default 19
help
Set the GPIO number used by SPI SCLK.
config ETH_DM9051_MOSI_GPIO
int "SPI MOSI GPIO number"
range 0 33
default 23
help
Set the GPIO number used by SPI MOSI.
config ETH_DM9051_MISO_GPIO
int "SPI MISO GPIO number"
range 0 33
default 25
help
Set the GPIO number used by SPI MISO.
config ETH_DM9051_CS_GPIO
int "SPI CS GPIO number"
range 0 33
default 22
help
Set the GPIO number used by SPI CS.
config ETH_DM9051_SPI_CLOCK_MHZ
int "SPI clock speed (MHz)"
range 5 80
default 20
help
Set the clock speed (MHz) of SPI interface.
config ETH_DM9051_INT_GPIO
int "Interrupt GPIO number"
default 4
help
Set the GPIO number used by DM9051 interrupt.
endif
config ETH_ETH_PHY_RST_GPIO
int "PHY Reset GPIO number"
default 5
help
Set the GPIO number used to reset PHY chip.
Set to -1 to disable PHY chip hardware reset.
config ETH_ETH_PHY_ADDR
int "PHY Address"
range 0 31 if ETH_USE_INTERNAL_ETHERNET
range 1 1 if !ETH_USE_INTERNAL_ETHERNET
default 1
help
Set PHY address according your board schematic.
endmenu
menu "SSD1306 Configuration"
choice INTERFACE
prompt "Interface"
default I2C_INTERFACE
help
Select Interface.
config I2C_INTERFACE
bool "I2C Interface"
help
I2C Interface.
config SPI_INTERFACE
bool "SPI Interface"
help
SPI Interface.
endchoice
choice PANEL
prompt "Panel Type"
default SSD1306_128x64
help
Select Panel Type.
config SSD1306_128x32
bool "128x32 Panel"
help
Panel is 128x32.
config SSD1306_128x64
bool "128x64 Panel"
help
Panel is 128x64.
endchoice
config OFFSETX
int "GRAM X OFFSET"
range 0 99
default 0
help
When your TFT have offset(X), set it.
config FLIP
bool "Flip upside down"
default false
help
Flip upside down.
config SCL_GPIO
depends on I2C_INTERFACE
int "SCL GPIO number"
range 0 46
default 22 if IDF_TARGET_ESP32
default 12 if IDF_TARGET_ESP32S2
default 9 if IDF_TARGET_ESP32C3
help
GPIO number (IOxx) to I2C SCL.
Some GPIOs are used for other purposes (flash connections, etc.) and cannot be used to I2C.
GPIOs 35-39 are input-only so cannot be used as outputs.
config SDA_GPIO
depends on I2C_INTERFACE
int "SDA GPIO number"
range 0 46
default 21 if IDF_TARGET_ESP32
default 11 if IDF_TARGET_ESP32S2
default 10 if IDF_TARGET_ESP32C3
help
GPIO number (IOxx) to I2C SDA.
Some GPIOs are used for other purposes (flash connections, etc.) and cannot be used to I2C.
GPIOs 35-39 are input-only so cannot be used as outputs.
config RESET_GPIO
int "RESET GPIO number"
range -1 46
default -1
help
GPIO number (IOxx) to RESET.
When it is -1, RESET isn't performed.
Some GPIOs are used for other purposes (flash connections, etc.) and cannot be used to Reset.
GPIOs 35-39 are input-only so cannot be used as outputs.
config MOSI_GPIO
depends on SPI_INTERFACE
int "MOSI GPIO number"
range 0 46
default 23 if IDF_TARGET_ESP32
default 35 if IDF_TARGET_ESP32S2
default 0 if IDF_TARGET_ESP32C3
help
GPIO number (IOxx) to SPI MOSI.
Some GPIOs are used for other purposes (flash connections, etc.) and cannot be used to DC.
On the ESP32, GPIOs 35-39 are input-only so cannot be used as outputs.
On the ESP32-S2, GPIO 46 is input-only so cannot be used as outputs.
config SCLK_GPIO
depends on SPI_INTERFACE
int "SCLK GPIO number"
range 0 46
default 18 if IDF_TARGET_ESP32
default 36 if IDF_TARGET_ESP32S2
default 1 if IDF_TARGET_ESP32C3
help
GPIO number (IOxx) to SPI SCLK.
Some GPIOs are used for other purposes (flash connections, etc.) and cannot be used to DC.
On the ESP32, GPIOs 35-39 are input-only so cannot be used as outputs.
On the ESP32-S2, GPIO 46 is input-only so cannot be used as outputs.
config CS_GPIO
depends on SPI_INTERFACE
int "CS GPIO number"
range 0 34
default 5 if IDF_TARGET_ESP32
default 34 if IDF_TARGET_ESP32S2
default 10 if IDF_TARGET_ESP32C3
help
GPIO number (IOxx) to SPI CS.
Some GPIOs are used for other purposes (flash connections, etc.) and cannot be used to CS.
GPIOs 35-39 are input-only so cannot be used as outputs.
config DC_GPIO
depends on SPI_INTERFACE
int "DC GPIO number"
range 0 34
default 2
help
GPIO number (IOxx) to SPI DC.
Some GPIOs are used for other purposes (flash connections, etc.) and cannot be used to DC.
GPIOs 35-39 are input-only so cannot be used as outputs.
endmenu

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main/component.mk Normal file
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#
# "main" pseudo-component makefile.
#
# (Uses default behaviour of compiling all source files in directory, adding 'include' to include path.)

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main/font8x8_basic.h Normal file
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/*
* font8x8_basic.h
*
* Created on: 2017/05/03
* Author: yanbe
*/
#ifndef MAIN_FONT8X8_BASIC_H_
#define MAIN_FONT8X8_BASIC_H_
/*
Constant: font8x8_basic_tr
Contains an 90 digree transposed 8x8 font map for unicode points
U+0000 - U+007F (basic latin)
To make it easy to use with SSD1306's GDDRAM mapping and API,
this constant is an 90 degree transposed.
The original version written by Marcel Sondaar is availble at:
https://github.com/dhepper/font8x8/blob/master/font8x8_basic.h
Conversion is done via following procedure:
for (int code = 0; code < 128; code++) {
uint8_t trans[8];
for (int w = 0; w < 8; w++) {
trans[w] = 0x00;
for (int b = 0; b < 8; b++) {
trans[w] |= ((font8x8_basic[code][b] & (1 << w)) >> w) << b;
}
}
for (int w = 0; w < 8; w++) {
if (w == 0) { printf(" { "); }
printf("0x%.2X", trans[w]);
if (w < 7) { printf(", "); }
if (w == 7) { printf(" }, // U+00%.2X (%c)\n", code, code); }
}
}
*/
static uint8_t font8x8_basic_tr[128][8] = {
{ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00 }, // U+0000 (nul)
{ 0x00, 0x04, 0x02, 0xFF, 0x02, 0x04, 0x00, 0x00 }, // U+0001 (Up Allow)
{ 0x00, 0x20, 0x40, 0xFF, 0x40, 0x20, 0x00, 0x00 }, // U+0002 (Down Allow)
{ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00 }, // U+0003
{ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00 }, // U+0004
{ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00 }, // U+0005
{ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00 }, // U+0006
{ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00 }, // U+0007
{ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00 }, // U+0008
{ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00 }, // U+0009
{ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00 }, // U+000A
{ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00 }, // U+000B
{ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00 }, // U+000C
{ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00 }, // U+000D
{ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00 }, // U+000E
{ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00 }, // U+000F
{ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00 }, // U+0010
{ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00 }, // U+0011
{ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00 }, // U+0012
{ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00 }, // U+0013
{ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00 }, // U+0014
{ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00 }, // U+0015
{ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00 }, // U+0016
{ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00 }, // U+0017
{ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00 }, // U+0018
{ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00 }, // U+0019
{ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00 }, // U+001A
{ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00 }, // U+001B
{ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00 }, // U+001C
{ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00 }, // U+001D
{ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00 }, // U+001E
{ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00 }, // U+001F
{ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00 }, // U+0020 (space)
{ 0x00, 0x00, 0x06, 0x5F, 0x5F, 0x06, 0x00, 0x00 }, // U+0021 (!)
{ 0x00, 0x03, 0x03, 0x00, 0x03, 0x03, 0x00, 0x00 }, // U+0022 (")
{ 0x14, 0x7F, 0x7F, 0x14, 0x7F, 0x7F, 0x14, 0x00 }, // U+0023 (#)
{ 0x24, 0x2E, 0x6B, 0x6B, 0x3A, 0x12, 0x00, 0x00 }, // U+0024 ($)
{ 0x46, 0x66, 0x30, 0x18, 0x0C, 0x66, 0x62, 0x00 }, // U+0025 (%)
{ 0x30, 0x7A, 0x4F, 0x5D, 0x37, 0x7A, 0x48, 0x00 }, // U+0026 (&)
{ 0x04, 0x07, 0x03, 0x00, 0x00, 0x00, 0x00, 0x00 }, // U+0027 (')
{ 0x00, 0x1C, 0x3E, 0x63, 0x41, 0x00, 0x00, 0x00 }, // U+0028 (()
{ 0x00, 0x41, 0x63, 0x3E, 0x1C, 0x00, 0x00, 0x00 }, // U+0029 ())
{ 0x08, 0x2A, 0x3E, 0x1C, 0x1C, 0x3E, 0x2A, 0x08 }, // U+002A (*)
{ 0x08, 0x08, 0x3E, 0x3E, 0x08, 0x08, 0x00, 0x00 }, // U+002B (+)
{ 0x00, 0x80, 0xE0, 0x60, 0x00, 0x00, 0x00, 0x00 }, // U+002C (,)
{ 0x08, 0x08, 0x08, 0x08, 0x08, 0x08, 0x00, 0x00 }, // U+002D (-)
{ 0x00, 0x00, 0x60, 0x60, 0x00, 0x00, 0x00, 0x00 }, // U+002E (.)
{ 0x60, 0x30, 0x18, 0x0C, 0x06, 0x03, 0x01, 0x00 }, // U+002F (/)
{ 0x3E, 0x7F, 0x71, 0x59, 0x4D, 0x7F, 0x3E, 0x00 }, // U+0030 (0)
{ 0x40, 0x42, 0x7F, 0x7F, 0x40, 0x40, 0x00, 0x00 }, // U+0031 (1)
{ 0x62, 0x73, 0x59, 0x49, 0x6F, 0x66, 0x00, 0x00 }, // U+0032 (2)
{ 0x22, 0x63, 0x49, 0x49, 0x7F, 0x36, 0x00, 0x00 }, // U+0033 (3)
{ 0x18, 0x1C, 0x16, 0x53, 0x7F, 0x7F, 0x50, 0x00 }, // U+0034 (4)
{ 0x27, 0x67, 0x45, 0x45, 0x7D, 0x39, 0x00, 0x00 }, // U+0035 (5)
{ 0x3C, 0x7E, 0x4B, 0x49, 0x79, 0x30, 0x00, 0x00 }, // U+0036 (6)
{ 0x03, 0x03, 0x71, 0x79, 0x0F, 0x07, 0x00, 0x00 }, // U+0037 (7)
{ 0x36, 0x7F, 0x49, 0x49, 0x7F, 0x36, 0x00, 0x00 }, // U+0038 (8)
{ 0x06, 0x4F, 0x49, 0x69, 0x3F, 0x1E, 0x00, 0x00 }, // U+0039 (9)
{ 0x00, 0x00, 0x66, 0x66, 0x00, 0x00, 0x00, 0x00 }, // U+003A (:)
{ 0x00, 0x80, 0xE6, 0x66, 0x00, 0x00, 0x00, 0x00 }, // U+003B (;)
{ 0x08, 0x1C, 0x36, 0x63, 0x41, 0x00, 0x00, 0x00 }, // U+003C (<)
{ 0x24, 0x24, 0x24, 0x24, 0x24, 0x24, 0x00, 0x00 }, // U+003D (=)
{ 0x00, 0x41, 0x63, 0x36, 0x1C, 0x08, 0x00, 0x00 }, // U+003E (>)
{ 0x02, 0x03, 0x51, 0x59, 0x0F, 0x06, 0x00, 0x00 }, // U+003F (?)
{ 0x3E, 0x7F, 0x41, 0x5D, 0x5D, 0x1F, 0x1E, 0x00 }, // U+0040 (@)
{ 0x7C, 0x7E, 0x13, 0x13, 0x7E, 0x7C, 0x00, 0x00 }, // U+0041 (A)
{ 0x41, 0x7F, 0x7F, 0x49, 0x49, 0x7F, 0x36, 0x00 }, // U+0042 (B)
{ 0x1C, 0x3E, 0x63, 0x41, 0x41, 0x63, 0x22, 0x00 }, // U+0043 (C)
{ 0x41, 0x7F, 0x7F, 0x41, 0x63, 0x3E, 0x1C, 0x00 }, // U+0044 (D)
{ 0x41, 0x7F, 0x7F, 0x49, 0x5D, 0x41, 0x63, 0x00 }, // U+0045 (E)
{ 0x41, 0x7F, 0x7F, 0x49, 0x1D, 0x01, 0x03, 0x00 }, // U+0046 (F)
{ 0x1C, 0x3E, 0x63, 0x41, 0x51, 0x73, 0x72, 0x00 }, // U+0047 (G)
{ 0x7F, 0x7F, 0x08, 0x08, 0x7F, 0x7F, 0x00, 0x00 }, // U+0048 (H)
{ 0x00, 0x41, 0x7F, 0x7F, 0x41, 0x00, 0x00, 0x00 }, // U+0049 (I)
{ 0x30, 0x70, 0x40, 0x41, 0x7F, 0x3F, 0x01, 0x00 }, // U+004A (J)
{ 0x41, 0x7F, 0x7F, 0x08, 0x1C, 0x77, 0x63, 0x00 }, // U+004B (K)
{ 0x41, 0x7F, 0x7F, 0x41, 0x40, 0x60, 0x70, 0x00 }, // U+004C (L)
{ 0x7F, 0x7F, 0x0E, 0x1C, 0x0E, 0x7F, 0x7F, 0x00 }, // U+004D (M)
{ 0x7F, 0x7F, 0x06, 0x0C, 0x18, 0x7F, 0x7F, 0x00 }, // U+004E (N)
{ 0x1C, 0x3E, 0x63, 0x41, 0x63, 0x3E, 0x1C, 0x00 }, // U+004F (O)
{ 0x41, 0x7F, 0x7F, 0x49, 0x09, 0x0F, 0x06, 0x00 }, // U+0050 (P)
{ 0x1E, 0x3F, 0x21, 0x71, 0x7F, 0x5E, 0x00, 0x00 }, // U+0051 (Q)
{ 0x41, 0x7F, 0x7F, 0x09, 0x19, 0x7F, 0x66, 0x00 }, // U+0052 (R)
{ 0x26, 0x6F, 0x4D, 0x59, 0x73, 0x32, 0x00, 0x00 }, // U+0053 (S)
{ 0x03, 0x41, 0x7F, 0x7F, 0x41, 0x03, 0x00, 0x00 }, // U+0054 (T)
{ 0x7F, 0x7F, 0x40, 0x40, 0x7F, 0x7F, 0x00, 0x00 }, // U+0055 (U)
{ 0x1F, 0x3F, 0x60, 0x60, 0x3F, 0x1F, 0x00, 0x00 }, // U+0056 (V)
{ 0x7F, 0x7F, 0x30, 0x18, 0x30, 0x7F, 0x7F, 0x00 }, // U+0057 (W)
{ 0x43, 0x67, 0x3C, 0x18, 0x3C, 0x67, 0x43, 0x00 }, // U+0058 (X)
{ 0x07, 0x4F, 0x78, 0x78, 0x4F, 0x07, 0x00, 0x00 }, // U+0059 (Y)
{ 0x47, 0x63, 0x71, 0x59, 0x4D, 0x67, 0x73, 0x00 }, // U+005A (Z)
{ 0x00, 0x7F, 0x7F, 0x41, 0x41, 0x00, 0x00, 0x00 }, // U+005B ([)
{ 0x01, 0x03, 0x06, 0x0C, 0x18, 0x30, 0x60, 0x00 }, // U+005C (\)
{ 0x00, 0x41, 0x41, 0x7F, 0x7F, 0x00, 0x00, 0x00 }, // U+005D (])
{ 0x08, 0x0C, 0x06, 0x03, 0x06, 0x0C, 0x08, 0x00 }, // U+005E (^)
{ 0x80, 0x80, 0x80, 0x80, 0x80, 0x80, 0x80, 0x80 }, // U+005F (_)
{ 0x00, 0x00, 0x03, 0x07, 0x04, 0x00, 0x00, 0x00 }, // U+0060 (`)
{ 0x20, 0x74, 0x54, 0x54, 0x3C, 0x78, 0x40, 0x00 }, // U+0061 (a)
{ 0x41, 0x7F, 0x3F, 0x48, 0x48, 0x78, 0x30, 0x00 }, // U+0062 (b)
{ 0x38, 0x7C, 0x44, 0x44, 0x6C, 0x28, 0x00, 0x00 }, // U+0063 (c)
{ 0x30, 0x78, 0x48, 0x49, 0x3F, 0x7F, 0x40, 0x00 }, // U+0064 (d)
{ 0x38, 0x7C, 0x54, 0x54, 0x5C, 0x18, 0x00, 0x00 }, // U+0065 (e)
{ 0x48, 0x7E, 0x7F, 0x49, 0x03, 0x02, 0x00, 0x00 }, // U+0066 (f)
{ 0x98, 0xBC, 0xA4, 0xA4, 0xF8, 0x7C, 0x04, 0x00 }, // U+0067 (g)
{ 0x41, 0x7F, 0x7F, 0x08, 0x04, 0x7C, 0x78, 0x00 }, // U+0068 (h)
{ 0x00, 0x44, 0x7D, 0x7D, 0x40, 0x00, 0x00, 0x00 }, // U+0069 (i)
{ 0x60, 0xE0, 0x80, 0x80, 0xFD, 0x7D, 0x00, 0x00 }, // U+006A (j)
{ 0x41, 0x7F, 0x7F, 0x10, 0x38, 0x6C, 0x44, 0x00 }, // U+006B (k)
{ 0x00, 0x41, 0x7F, 0x7F, 0x40, 0x00, 0x00, 0x00 }, // U+006C (l)
{ 0x7C, 0x7C, 0x18, 0x38, 0x1C, 0x7C, 0x78, 0x00 }, // U+006D (m)
{ 0x7C, 0x7C, 0x04, 0x04, 0x7C, 0x78, 0x00, 0x00 }, // U+006E (n)
{ 0x38, 0x7C, 0x44, 0x44, 0x7C, 0x38, 0x00, 0x00 }, // U+006F (o)
{ 0x84, 0xFC, 0xF8, 0xA4, 0x24, 0x3C, 0x18, 0x00 }, // U+0070 (p)
{ 0x18, 0x3C, 0x24, 0xA4, 0xF8, 0xFC, 0x84, 0x00 }, // U+0071 (q)
{ 0x44, 0x7C, 0x78, 0x4C, 0x04, 0x1C, 0x18, 0x00 }, // U+0072 (r)
{ 0x48, 0x5C, 0x54, 0x54, 0x74, 0x24, 0x00, 0x00 }, // U+0073 (s)
{ 0x00, 0x04, 0x3E, 0x7F, 0x44, 0x24, 0x00, 0x00 }, // U+0074 (t)
{ 0x3C, 0x7C, 0x40, 0x40, 0x3C, 0x7C, 0x40, 0x00 }, // U+0075 (u)
{ 0x1C, 0x3C, 0x60, 0x60, 0x3C, 0x1C, 0x00, 0x00 }, // U+0076 (v)
{ 0x3C, 0x7C, 0x70, 0x38, 0x70, 0x7C, 0x3C, 0x00 }, // U+0077 (w)
{ 0x44, 0x6C, 0x38, 0x10, 0x38, 0x6C, 0x44, 0x00 }, // U+0078 (x)
{ 0x9C, 0xBC, 0xA0, 0xA0, 0xFC, 0x7C, 0x00, 0x00 }, // U+0079 (y)
{ 0x4C, 0x64, 0x74, 0x5C, 0x4C, 0x64, 0x00, 0x00 }, // U+007A (z)
{ 0x08, 0x08, 0x3E, 0x77, 0x41, 0x41, 0x00, 0x00 }, // U+007B ({)
{ 0x00, 0x00, 0x00, 0x77, 0x77, 0x00, 0x00, 0x00 }, // U+007C (|)
{ 0x41, 0x41, 0x77, 0x3E, 0x08, 0x08, 0x00, 0x00 }, // U+007D (})
{ 0x02, 0x03, 0x01, 0x03, 0x02, 0x03, 0x01, 0x00 }, // U+007E (~)
{ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00 } // U+007F
};
#endif /* MAIN_FONT8X8_BASIC_H_ */

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/* Ethernet Basic Example
This example code is in the Public Domain (or CC0 licensed, at your option.)
Unless required by applicable law or agreed to in writing, this
software is distributed on an "AS IS" BASIS, WITHOUT WARRANTIES OR
CONDITIONS OF ANY KIND, either express or implied.
*/
#include <stdio.h>
#include <string.h>
#include "freertos/FreeRTOS.h"
#include "freertos/task.h"
#include "esp_netif.h"
#include "esp_eth.h"
#include "esp_event.h"
#include "esp_log.h"
#include "esp_sleep.h"
#include "driver/gpio.h"
#include <driver/adc.h>
#include "sdkconfig.h"
#include "ssd1306.h"
#include "font8x8_basic.h"
static const char *TAG = "eth_tester";
#define IP_FSTRING "%3d.%3d.%3d.%3d"
#define SIGNAL_SHUTDOWN 1
#define LINE_STATUS_MAIN 0
#define LINE_ID_ADDR 2
#define LINE_IP_SNM 3
#define LINE_IP_GW 4
#define LINE_STATUS_FLAGS1 5
#define LINE_STATUS_FLAGS2 6
#define LINE_STATUS_FLAGS3 7
SSD1306_t display;
uint8_t mac_addr[6] = {0};
eth_event_t eth_state = ETHERNET_EVENT_STOP;
esp_ip4_addr_t ip_addr;
esp_ip4_addr_t ip_snm;
esp_ip4_addr_t ip_gw;
esp_netif_t *eth_netif;
bool dns_resolv = false;
bool blink_mod = false;
static uint8_t get_byte(uint32_t addr, int n)
{
return (addr >> (8 * n)) & 0xFF;
}
#define IP4ZCHK(ipaddr) (esp_ip4_addr1_16(ipaddr) | esp_ip4_addr2_16(ipaddr) | esp_ip4_addr3_16(ipaddr) | esp_ip4_addr4_16(ipaddr))
static bool check_dns()
{
esp_netif_dns_info_t dns_info;
ESP_ERROR_CHECK(esp_netif_get_dns_info(eth_netif, ESP_NETIF_DNS_MAIN, &dns_info));
// ESP_LOGI(TAG, IP_FSTRING, IP2STR(&dns_info.ip.u_addr.ip4));
// ESP_LOGI(TAG, "%d", IP4ZCHK(&dns_info.ip.u_addr.ip4));
if (IP4ZCHK(&dns_info.ip.u_addr.ip4) != 0)
return true;
return false;
}
static void refresh_display()
{
char buf[64];
int buflen;
switch (eth_state) {
case ETHERNET_EVENT_CONNECTED:
buflen = sprintf(buf, "%-16s", "LINK UP");
// ssd1306_clear_line(&display, LINE_STATUS_MAIN, false);
ssd1306_display_text(&display, LINE_STATUS_MAIN, buf, buflen, false, 0);
// buflen = sprintf(buf, "MAC:%02X%02X%02X%02X%02X%02X",
// mac_addr[0], mac_addr[1], mac_addr[2], mac_addr[3], mac_addr[4], mac_addr[5]);
// ssd1306_clear_line(&display, 1, false);
// ssd1306_display_text(&display, 1, buf, buflen, false, 0);
break;
case ETHERNET_EVENT_DISCONNECTED:
buflen = sprintf(buf, "%-16s", "LINK DOWN");
// ssd1306_clear_screen(&display, false);
ssd1306_display_text(&display, LINE_STATUS_MAIN, buf, buflen, false, 0);
ssd1306_clear_line(&display, LINE_ID_ADDR, false);
ssd1306_clear_line(&display, LINE_IP_SNM, false);
ssd1306_clear_line(&display, LINE_IP_GW, false);
break;
case ETHERNET_EVENT_START:
buflen = sprintf(buf, "%-16s", "ETH RDY");
// ssd1306_clear_screen(&display, false);
ssd1306_display_text(&display, LINE_STATUS_MAIN, buf, buflen, false, 0);
break;
case ETHERNET_EVENT_STOP:
buflen = sprintf(buf, "%-16s", "ETH DOWN");
// ssd1306_clear_screen(&display, false);
ssd1306_display_text(&display, LINE_STATUS_MAIN, buf, buflen, false, 0);
ssd1306_clear_line(&display, LINE_ID_ADDR, false);
ssd1306_clear_line(&display, LINE_IP_SNM, false);
ssd1306_clear_line(&display, LINE_IP_GW, false);
break;
default:
break;
}
if ((eth_state == ETHERNET_EVENT_CONNECTED) & (ip_addr.addr != 0)){
// ssd1306_clear_line(&display, 2, false);
// ssd1306_display_text(&display, 2, "IP", 2, false, 0);
buflen = sprintf(buf, IP_FSTRING, IP2STR(&ip_addr));
//ssd1306_clear_line(&display, 3, false);
ssd1306_display_text(&display, LINE_ID_ADDR, "I", 3, true, 0);
ssd1306_display_text(&display, LINE_ID_ADDR, buf, buflen, false, 1);
buflen = sprintf(buf, IP_FSTRING, IP2STR(&ip_snm));
//ssd1306_clear_line(&display, 4, false);
ssd1306_display_text(&display, LINE_IP_SNM, "S", 1, true, 0);
ssd1306_display_text(&display, LINE_IP_SNM, buf, buflen, false, 1);
buflen = sprintf(buf, IP_FSTRING, IP2STR(&ip_gw));
//ssd1306_clear_line(&display, 5, false);
ssd1306_display_text(&display, LINE_IP_GW, "G", 1, true, 0);
ssd1306_display_text(&display, LINE_IP_GW, buf, buflen, false, 1);
}
bool poe = (adc1_get_raw(ADC1_CHANNEL_3) > 2048); //arbitrary value, battery power is ~800
bool eth = (eth_state == ETHERNET_EVENT_CONNECTED);
bool addr = (ip_addr.addr != 0) & eth;
bool dns = ((check_dns()) && addr && blink_mod) || dns_resolv;
ssd1306_display_text(&display, LINE_STATUS_FLAGS3, "POE", 3, poe, 13);
ssd1306_display_text(&display, LINE_STATUS_FLAGS3, "LNK", 3, eth, 9);
ssd1306_display_text(&display, LINE_STATUS_FLAGS3, "DHCP", 4, addr, 4);
ssd1306_display_text(&display, LINE_STATUS_FLAGS3, "DNS", 3, dns, 0);
}
/** Event handler for Ethernet events */
static void eth_event_handler(void *arg, esp_event_base_t event_base,
int32_t event_id, void *event_data)
{
/* we can get the ethernet driver handle from event data */
esp_eth_handle_t eth_handle = *(esp_eth_handle_t *)event_data;
eth_state = event_id;
switch (event_id) {
case ETHERNET_EVENT_CONNECTED:
esp_eth_ioctl(eth_handle, ETH_CMD_G_MAC_ADDR, mac_addr);
ESP_LOGI(TAG, "Ethernet Link Up");
ESP_LOGI(TAG, "Ethernet HW Addr %02x:%02x:%02x:%02x:%02x:%02x",
mac_addr[0], mac_addr[1], mac_addr[2], mac_addr[3], mac_addr[4], mac_addr[5]);
break;
case ETHERNET_EVENT_DISCONNECTED:
ESP_LOGI(TAG, "Link Down");
break;
case ETHERNET_EVENT_START:
ESP_LOGI(TAG, "Ethernet Started");
break;
case ETHERNET_EVENT_STOP:
ESP_LOGI(TAG, "Ethernet Stopped");
break;
default:
break;
}
refresh_display();
}
/** Event handler for IP_EVENT_ETH_GOT_IP */
static void got_ip_event_handler(void *arg, esp_event_base_t event_base,
int32_t event_id, void *event_data)
{
ip_event_got_ip_t *event = (ip_event_got_ip_t *) event_data;
const esp_netif_ip_info_t *ip_info = &event->ip_info;
ESP_LOGI(TAG, "Ethernet Got IP Address");
ESP_LOGI(TAG, "~~~~~~~~~~~");
ESP_LOGI(TAG, "ETHIP:" IPSTR, IP2STR(&ip_info->ip));
ESP_LOGI(TAG, "ETHMASK:" IPSTR, IP2STR(&ip_info->netmask));
ESP_LOGI(TAG, "ETHGW:" IPSTR, IP2STR(&ip_info->gw));
ESP_LOGI(TAG, "~~~~~~~~~~~");
ip_addr = ip_info->ip;
ip_snm = ip_info->netmask;
ip_gw = ip_info->gw;
refresh_display();
}
static xQueueHandle signal_queue = NULL;
static void IRAM_ATTR isr_shutdown(void* arg)
{
uint32_t sig = SIGNAL_SHUTDOWN;
xQueueSendFromISR(signal_queue, &sig, NULL);
}
static void task_signals(void* arg)
{
uint32_t sig;
for(;;) {
if(xQueueReceive(signal_queue, &sig, portMAX_DELAY)) {
if (sig == SIGNAL_SHUTDOWN) {
ESP_LOGI(TAG, "Got shutdown trigger, going to sleep...");
ssd1306_clear_screen(&display, false);
esp_sleep_enable_ext0_wakeup(34, 0);
esp_deep_sleep_start();
}
}
}
}
#define PIN_PHY_POWER 12
void app_main(void)
{
// ###############################################################
// # Display Configuration #
// ###############################################################
SSD1306_t dev;
#if CONFIG_I2C_INTERFACE
ESP_LOGI(TAG, "INTERFACE is i2c");
ESP_LOGI(TAG, "CONFIG_SDA_GPIO=%d",CONFIG_SDA_GPIO);
ESP_LOGI(TAG, "CONFIG_SCL_GPIO=%d",CONFIG_SCL_GPIO);
ESP_LOGI(TAG, "CONFIG_RESET_GPIO=%d",CONFIG_RESET_GPIO);
i2c_master_init(&dev, CONFIG_SDA_GPIO, CONFIG_SCL_GPIO, CONFIG_RESET_GPIO);
#endif // CONFIG_I2C_INTERFACE
#if CONFIG_SPI_INTERFACE
ESP_LOGI(TAG, "INTERFACE is SPI");
ESP_LOGI(TAG, "CONFIG_MOSI_GPIO=%d",CONFIG_MOSI_GPIO);
ESP_LOGI(TAG, "CONFIG_SCLK_GPIO=%d",CONFIG_SCLK_GPIO);
ESP_LOGI(TAG, "CONFIG_CS_GPIO=%d",CONFIG_CS_GPIO);
ESP_LOGI(TAG, "CONFIG_DC_GPIO=%d",CONFIG_DC_GPIO);
ESP_LOGI(TAG, "CONFIG_RESET_GPIO=%d",CONFIG_RESET_GPIO);
spi_master_init(&dev, CONFIG_MOSI_GPIO, CONFIG_SCLK_GPIO, CONFIG_CS_GPIO, CONFIG_DC_GPIO, CONFIG_RESET_GPIO);
#endif // CONFIG_SPI_INTERFACE
#if CONFIG_FLIP
dev._flip = true;
ESP_LOGW(TAG, "Flip upside down");
#endif
#if CONFIG_SSD1306_128x64
ESP_LOGI(TAG, "Panel is 128x64");
ssd1306_init(&dev, 128, 64);
#endif // CONFIG_SSD1306_128x64
#if CONFIG_SSD1306_128x32
ESP_LOGI(TAG, "Panel is 128x32");
ssd1306_init(&dev, 128, 32);
#endif // CONFIG_SSD1306_128x32
ssd1306_clear_screen(&dev, false);
ssd1306_contrast(&dev, 0xff);
display = dev;
// ###############################################################
// # Ethernet Configuration #
// ###############################################################
// Initialize TCP/IP network interface (should be called only once in application)
ESP_ERROR_CHECK(esp_netif_init());
// Create default event loop that running in background
ESP_ERROR_CHECK(esp_event_loop_create_default());
esp_netif_config_t cfg = ESP_NETIF_DEFAULT_ETH();
eth_netif = esp_netif_new(&cfg);
// Set default handlers to process TCP/IP stuffs
ESP_ERROR_CHECK(esp_eth_set_default_handlers(eth_netif));
// Register user defined event handers
ESP_ERROR_CHECK(esp_event_handler_register(ETH_EVENT, ESP_EVENT_ANY_ID, &eth_event_handler, NULL));
ESP_ERROR_CHECK(esp_event_handler_register(IP_EVENT, IP_EVENT_ETH_GOT_IP, &got_ip_event_handler, NULL));
eth_mac_config_t mac_config = ETH_MAC_DEFAULT_CONFIG();
eth_phy_config_t phy_config = ETH_PHY_DEFAULT_CONFIG();
phy_config.phy_addr = CONFIG_ETH_ETH_PHY_ADDR;
phy_config.reset_gpio_num = CONFIG_ETH_ETH_PHY_RST_GPIO;
gpio_pad_select_gpio(PIN_PHY_POWER);
gpio_set_direction(PIN_PHY_POWER,GPIO_MODE_OUTPUT);
gpio_set_level(PIN_PHY_POWER, 1);
vTaskDelay(pdMS_TO_TICKS(10));
#if CONFIG_ETH_USE_INTERNAL_ETHERNET
mac_config.smi_mdc_gpio_num = CONFIG_ETH_ETH_MDC_GPIO;
mac_config.smi_mdio_gpio_num = CONFIG_ETH_ETH_MDIO_GPIO;
esp_eth_mac_t *mac = esp_eth_mac_new_esp32(&mac_config);
#if CONFIG_ETH_ETH_PHY_IP101
esp_eth_phy_t *phy = esp_eth_phy_new_ip101(&phy_config);
#elif CONFIG_ETH_ETH_PHY_RTL8201
esp_eth_phy_t *phy = esp_eth_phy_new_rtl8201(&phy_config);
#elif CONFIG_ETH_ETH_PHY_LAN8720
esp_eth_phy_t *phy = esp_eth_phy_new_lan8720(&phy_config);
#elif CONFIG_ETH_ETH_PHY_DP83848
esp_eth_phy_t *phy = esp_eth_phy_new_dp83848(&phy_config);
#endif
#elif CONFIG_ETH_USE_DM9051
gpio_install_isr_service(0);
spi_device_handle_t spi_handle = NULL;
spi_bus_config_t buscfg = {
.miso_io_num = CONFIG_ETH_DM9051_MISO_GPIO,
.mosi_io_num = CONFIG_ETH_DM9051_MOSI_GPIO,
.sclk_io_num = CONFIG_ETH_DM9051_SCLK_GPIO,
.quadwp_io_num = -1,
.quadhd_io_num = -1,
};
ESP_ERROR_CHECK(spi_bus_initialize(CONFIG_ETH_DM9051_SPI_HOST, &buscfg, 1));
spi_device_interface_config_t devcfg = {
.command_bits = 1,
.address_bits = 7,
.mode = 0,
.clock_speed_hz = CONFIG_ETH_DM9051_SPI_CLOCK_MHZ * 1000 * 1000,
.spics_io_num = CONFIG_ETH_DM9051_CS_GPIO,
.queue_size = 20
};
ESP_ERROR_CHECK(spi_bus_add_device(CONFIG_ETH_DM9051_SPI_HOST, &devcfg, &spi_handle));
/* dm9051 ethernet driver is based on spi driver */
eth_dm9051_config_t dm9051_config = ETH_DM9051_DEFAULT_CONFIG(spi_handle);
dm9051_config.int_gpio_num = CONFIG_ETH_DM9051_INT_GPIO;
esp_eth_mac_t *mac = esp_eth_mac_new_dm9051(&dm9051_config, &mac_config);
esp_eth_phy_t *phy = esp_eth_phy_new_dm9051(&phy_config);
#endif
esp_eth_config_t config = ETH_DEFAULT_CONFIG(mac, phy);
esp_eth_handle_t eth_handle = NULL;
ESP_ERROR_CHECK(esp_eth_driver_install(&config, &eth_handle));
/* attach Ethernet driver to TCP/IP stack */
ESP_ERROR_CHECK(esp_netif_attach(eth_netif, esp_eth_new_netif_glue(eth_handle)));
/* start Ethernet driver state machine */
ESP_ERROR_CHECK(esp_eth_start(eth_handle));
// ###############################################################
// # Misc Configuration #
// ###############################################################
// setup power in measurement (for PoE detection)
adc1_config_width(ADC_WIDTH_12Bit);
adc1_config_channel_atten(ADC1_CHANNEL_3, ADC_ATTEN_DB_11);
// gpio setup
//zero-initialize the config structure.
gpio_config_t io_conf = {};
//interrupt of rising edge
io_conf.intr_type = GPIO_INTR_POSEDGE;
//bit mask of the pins, here 34
io_conf.pin_bit_mask = 1ULL<<34;
//set as input mode
io_conf.mode = GPIO_MODE_INPUT;
ESP_ERROR_CHECK(gpio_config(&io_conf));
ESP_ERROR_CHECK(gpio_set_intr_type(34, GPIO_INTR_POSEDGE));
// interrut for shutdown/deep sleep
ESP_ERROR_CHECK(gpio_install_isr_service(ESP_INTR_FLAG_LOWMED));
ESP_ERROR_CHECK(gpio_isr_handler_add(34, isr_shutdown, NULL));
// signal task, to catch shutdown signal
signal_queue = xQueueCreate(10, sizeof(uint32_t));
//start signal task
xTaskCreate(task_signals, "signals", 2048, NULL, 10, NULL);
while (1) {
blink_mod = !blink_mod;
refresh_display();
vTaskDelay(350 / portTICK_RATE_MS);
}
}

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#include <string.h>
#include "freertos/FreeRTOS.h"
#include "freertos/task.h"
#include "esp_log.h"
#include "ssd1306.h"
#include "font8x8_basic.h"
#define TAG "SSD1306"
void ssd1306_init(SSD1306_t * dev, int width, int height)
{
if (dev->_address == SPIAddress) {
spi_init(dev, width, height);
} else {
i2c_init(dev, width, height);
}
}
void ssd1306_display_text(SSD1306_t * dev, int page, char * text, int text_len, bool invert, int skip)
{
if (page >= dev->_pages) return;
int _text_len = text_len;
if (_text_len > 16) _text_len = 16;
uint8_t seg = 8*skip;
uint8_t image[8];
for (uint8_t i = 0; i < _text_len; i++) {
memcpy(image, font8x8_basic_tr[(uint8_t)text[i]], 8);
if (invert) ssd1306_invert(image, 8);
if (dev->_flip) ssd1306_flip(image, 8);
if (dev->_address == SPIAddress) {
spi_display_image(dev, page, seg, image, 8);
} else {
i2c_display_image(dev, page, seg, image, 8);
}
seg = seg + 8;
}
}
void ssd1306_display_image(SSD1306_t * dev, int page, int seg, uint8_t * images, int width)
{
if (dev->_address == SPIAddress) {
spi_display_image(dev, page, seg, images, width);
} else {
i2c_display_image(dev, page, seg, images, width);
}
}
void ssd1306_clear_screen(SSD1306_t * dev, bool invert)
{
char space[16];
memset(space, 0x20, sizeof(space));
for (int page = 0; page < dev->_pages; page++) {
ssd1306_display_text(dev, page, space, sizeof(space), invert, 0);
}
}
void ssd1306_clear_line(SSD1306_t * dev, int page, bool invert)
{
char space[16];
memset(space, 0x20, sizeof(space));
ssd1306_display_text(dev, page, space, sizeof(space), invert, 0);
}
void ssd1306_contrast(SSD1306_t * dev, int contrast)
{
if (dev->_address == SPIAddress) {
spi_contrast(dev, contrast);
} else {
i2c_contrast(dev, contrast);
}
}
void ssd1306_software_scroll(SSD1306_t * dev, int start, int end)
{
ESP_LOGD(TAG, "software_scroll start=%d end=%d _pages=%d", start, end, dev->_pages);
if (start < 0 || end < 0) {
dev->_scEnable = false;
} else if (start >= dev->_pages || end >= dev->_pages) {
dev->_scEnable = false;
} else {
dev->_scEnable = true;
dev->_scStart = start;
dev->_scEnd = end;
dev->_scDirection = 1;
if (start > end ) dev->_scDirection = -1;
for (int i=0;i<dev->_pages;i++) {
dev->_page[i]._valid = false;
dev->_page[i]._segLen = 0;
}
}
}
void ssd1306_scroll_text(SSD1306_t * dev, char * text, int text_len, bool invert)
{
ESP_LOGD(TAG, "dev->_scEnable=%d", dev->_scEnable);
if (dev->_scEnable == false) return;
void (*func)(SSD1306_t * dev, int page, int seg, uint8_t * images, int width);
if (dev->_address == SPIAddress) {
func = spi_display_image;
} else {
func = i2c_display_image;
}
int srcIndex = dev->_scEnd - dev->_scDirection;
while(1) {
int dstIndex = srcIndex + dev->_scDirection;
ESP_LOGD(TAG, "srcIndex=%d dstIndex=%d", srcIndex,dstIndex);
dev->_page[dstIndex]._valid = dev->_page[srcIndex]._valid;
dev->_page[dstIndex]._segLen = dev->_page[srcIndex]._segLen;
for(int seg = 0; seg < dev->_width; seg++) {
dev->_page[dstIndex]._segs[seg] = dev->_page[srcIndex]._segs[seg];
}
ESP_LOGD(TAG, "_valid=%d", dev->_page[dstIndex]._valid);
if (dev->_page[dstIndex]._valid) (*func)(dev, dstIndex, 0, dev->_page[dstIndex]._segs, dev->_page[srcIndex]._segLen);
if (srcIndex == dev->_scStart) break;
srcIndex = srcIndex - dev->_scDirection;
}
int _text_len = text_len;
if (_text_len > 16) _text_len = 16;
uint8_t seg = 0;
uint8_t image[8];
for (uint8_t i = 0; i < _text_len; i++) {
memcpy(image, font8x8_basic_tr[(uint8_t)text[i]], 8);
if (invert) ssd1306_invert(image, 8);
if (dev->_flip) ssd1306_flip(image, 8);
(*func)(dev, srcIndex, seg, image, 8);
for(int j=0;j<8;j++) dev->_page[srcIndex]._segs[seg+j] = image[j];
seg = seg + 8;
}
dev->_page[srcIndex]._valid = true;
dev->_page[srcIndex]._segLen = seg;
}
void ssd1306_scroll_clear(SSD1306_t * dev)
{
ESP_LOGD(TAG, "dev->_scEnable=%d", dev->_scEnable);
if (dev->_scEnable == false) return;
int srcIndex = dev->_scEnd - dev->_scDirection;
while(1) {
int dstIndex = srcIndex + dev->_scDirection;
ESP_LOGD(TAG, "srcIndex=%d dstIndex=%d", srcIndex,dstIndex);
ssd1306_clear_line(dev, dstIndex, false);
dev->_page[dstIndex]._valid = false;
if (dstIndex == dev->_scStart) break;
srcIndex = srcIndex - dev->_scDirection;
}
}
void ssd1306_hardware_scroll(SSD1306_t * dev, ssd1306_scroll_type_t scroll)
{
if (dev->_address == SPIAddress) {
spi_hardware_scroll(dev, scroll);
} else {
i2c_hardware_scroll(dev, scroll);
}
}
void ssd1306_invert(uint8_t *buf, size_t blen)
{
uint8_t wk;
for(int i=0; i<blen; i++){
wk = buf[i];
buf[i] = ~wk;
}
}
// Flip upside down
void ssd1306_flip(uint8_t *buf, size_t blen)
{
for(int i=0; i<blen; i++){
buf[i] = ssd1306_rotate(buf[i]);
}
}
// Rotate 8-bit data
// 0x12-->0x48
uint8_t ssd1306_rotate(uint8_t ch1) {
uint8_t ch2 = 0;
for (int j=0;j<8;j++) {
ch2 = (ch2 << 1) + (ch1 & 0x01);
ch1 = ch1 >> 1;
}
return ch2;
}
void ssd1306_fadeout(SSD1306_t * dev)
{
void (*func)(SSD1306_t * dev, int page, int seg, uint8_t * images, int width);
if (dev->_address == SPIAddress) {
func = spi_display_image;
} else {
func = i2c_display_image;
}
uint8_t image[1];
for(int page=0; page<dev->_pages; page++) {
image[0] = 0xFF;
for(int line=0; line<8; line++) {
if (dev->_flip) {
image[0] = image[0] >> 1;
} else {
image[0] = image[0] << 1;
}
for(int seg=0; seg<128; seg++) {
(*func)(dev, page, seg, image, 1);
}
}
}
}
void ssd1306_dump(SSD1306_t dev)
{
printf("_address=%x\n",dev._address);
printf("_width=%x\n",dev._width);
printf("_height=%x\n",dev._height);
printf("_pages=%x\n",dev._pages);
}

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#ifndef MAIN_SSD1306_H_
#define MAIN_SSD1306_H_
#include "driver/spi_master.h"
// Following definitions are borrowed from
// http://robotcantalk.blogspot.com/2015/03/interfacing-arduino-with-ssd1306-driven.html
/* Control byte for i2c
Co : bit 8 : Continuation Bit
* 1 = no-continuation (only one byte to follow)
* 0 = the controller should expect a stream of bytes.
D/C# : bit 7 : Data/Command Select bit
* 1 = the next byte or byte stream will be Data.
* 0 = a Command byte or byte stream will be coming up next.
Bits 6-0 will be all zeros.
Usage:
0x80 : Single Command byte
0x00 : Command Stream
0xC0 : Single Data byte
0x40 : Data Stream
*/
#define OLED_CONTROL_BYTE_CMD_SINGLE 0x80
#define OLED_CONTROL_BYTE_CMD_STREAM 0x00
#define OLED_CONTROL_BYTE_DATA_SINGLE 0xC0
#define OLED_CONTROL_BYTE_DATA_STREAM 0x40
// Fundamental commands (pg.28)
#define OLED_CMD_SET_CONTRAST 0x81 // follow with 0x7F
#define OLED_CMD_DISPLAY_RAM 0xA4
#define OLED_CMD_DISPLAY_ALLON 0xA5
#define OLED_CMD_DISPLAY_NORMAL 0xA6
#define OLED_CMD_DISPLAY_INVERTED 0xA7
#define OLED_CMD_DISPLAY_OFF 0xAE
#define OLED_CMD_DISPLAY_ON 0xAF
// Addressing Command Table (pg.30)
#define OLED_CMD_SET_MEMORY_ADDR_MODE 0x20
#define OLED_CMD_SET_HORI_ADDR_MODE 0x00 // Horizontal Addressing Mode
#define OLED_CMD_SET_VERT_ADDR_MODE 0x01 // Vertical Addressing Mode
#define OLED_CMD_SET_PAGE_ADDR_MODE 0x02 // Page Addressing Mode
#define OLED_CMD_SET_COLUMN_RANGE 0x21 // can be used only in HORZ/VERT mode - follow with 0x00 and 0x7F = COL127
#define OLED_CMD_SET_PAGE_RANGE 0x22 // can be used only in HORZ/VERT mode - follow with 0x00 and 0x07 = PAGE7
// Hardware Config (pg.31)
#define OLED_CMD_SET_DISPLAY_START_LINE 0x40
#define OLED_CMD_SET_SEGMENT_REMAP_0 0xA0
#define OLED_CMD_SET_SEGMENT_REMAP_1 0xA1
#define OLED_CMD_SET_MUX_RATIO 0xA8 // follow with 0x3F = 64 MUX
#define OLED_CMD_SET_COM_SCAN_MODE 0xC8
#define OLED_CMD_SET_DISPLAY_OFFSET 0xD3 // follow with 0x00
#define OLED_CMD_SET_COM_PIN_MAP 0xDA // follow with 0x12
#define OLED_CMD_NOP 0xE3 // NOP
// Timing and Driving Scheme (pg.32)
#define OLED_CMD_SET_DISPLAY_CLK_DIV 0xD5 // follow with 0x80
#define OLED_CMD_SET_PRECHARGE 0xD9 // follow with 0xF1
#define OLED_CMD_SET_VCOMH_DESELCT 0xDB // follow with 0x30
// Charge Pump (pg.62)
#define OLED_CMD_SET_CHARGE_PUMP 0x8D // follow with 0x14
// Scrolling Command
#define OLED_CMD_HORIZONTAL_RIGHT 0x26
#define OLED_CMD_HORIZONTAL_LEFT 0x27
#define OLED_CMD_CONTINUOUS_SCROLL 0x29
#define OLED_CMD_DEACTIVE_SCROLL 0x2E
#define OLED_CMD_ACTIVE_SCROLL 0x2F
#define OLED_CMD_VERTICAL 0xA3
#define I2CAddress 0x3C
#define SPIAddress 0xFF
typedef enum {
SCROLL_RIGHT = 1,
SCROLL_LEFT = 2,
SCROLL_DOWN = 3,
SCROLL_UP = 4,
SCROLL_STOP = 5
} ssd1306_scroll_type_t;
typedef struct {
bool _valid;
int _segLen; // 0-128
uint8_t _segs[128];
} PAGE_t;
typedef struct {
int _address;
int _width;
int _height;
int _pages;
int _dc;
spi_device_handle_t _SPIHandle;
bool _scEnable;
int _scStart;
int _scEnd;
int _scDirection;
PAGE_t _page[8];
bool _flip;
} SSD1306_t;
void ssd1306_init(SSD1306_t * dev, int width, int height);
void ssd1306_display_text(SSD1306_t * dev, int page, char * text, int text_len, bool invert, int skip);
void ssd1306_display_image(SSD1306_t * dev, int page, int seg, uint8_t * images, int width);
void ssd1306_clear_screen(SSD1306_t * dev, bool invert);
void ssd1306_clear_line(SSD1306_t * dev, int page, bool invert);
void ssd1306_contrast(SSD1306_t * dev, int contrast);
void ssd1306_software_scroll(SSD1306_t * dev, int start, int end);
void ssd1306_scroll_text(SSD1306_t * dev, char * text, int text_len, bool invert);
void ssd1306_scroll_clear(SSD1306_t * dev);
void ssd1306_hardware_scroll(SSD1306_t * dev, ssd1306_scroll_type_t scroll);
void ssd1306_invert(uint8_t *buf, size_t blen);
void ssd1306_flip(uint8_t *buf, size_t blen);
uint8_t ssd1306_rotate(uint8_t ch1);
void ssd1306_fadeout(SSD1306_t * dev);
void ssd1306_dump(SSD1306_t dev);
void i2c_master_init(SSD1306_t * dev, int16_t sda, int16_t scl, int16_t reset);
void i2c_init(SSD1306_t * dev, int width, int height);
void i2c_display_image(SSD1306_t * dev, int page, int seg, uint8_t * images, int width);
void i2c_contrast(SSD1306_t * dev, int contrast);
void i2c_hardware_scroll(SSD1306_t * dev, ssd1306_scroll_type_t scroll);
void spi_master_init(SSD1306_t * dev, int16_t GPIO_MOSI, int16_t GPIO_SCLK, int16_t GPIO_CS, int16_t GPIO_DC, int16_t GPIO_RESET);
bool spi_master_write_byte(spi_device_handle_t SPIHandle, const uint8_t* Data, size_t DataLength );
bool spi_master_write_command(SSD1306_t * dev, uint8_t Command );
bool spi_master_write_data(SSD1306_t * dev, const uint8_t* Data, size_t DataLength );
void spi_init(SSD1306_t * dev, int width, int height);
void spi_display_image(SSD1306_t * dev, int page, int seg, uint8_t * images, int width);
void spi_contrast(SSD1306_t * dev, int contrast);
void spi_hardware_scroll(SSD1306_t * dev, ssd1306_scroll_type_t scroll);
#endif /* MAIN_SSD1306_H_ */

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#include <string.h>
#include "freertos/FreeRTOS.h"
#include "freertos/task.h"
#include "driver/i2c.h"
#include "esp_log.h"
#include "ssd1306.h"
#define tag "SSD1306"
void i2c_master_init(SSD1306_t * dev, int16_t sda, int16_t scl, int16_t reset)
{
i2c_config_t i2c_config = {
.mode = I2C_MODE_MASTER,
.sda_io_num = sda,
.scl_io_num = scl,
.sda_pullup_en = GPIO_PULLUP_ENABLE,
.scl_pullup_en = GPIO_PULLUP_ENABLE,
.master.clk_speed = 1000000
};
i2c_param_config(I2C_NUM_0, &i2c_config);
i2c_driver_install(I2C_NUM_0, I2C_MODE_MASTER, 0, 0, 0);
if (reset >= 0) {
//gpio_pad_select_gpio(reset);
gpio_reset_pin(reset);
gpio_set_direction(reset, GPIO_MODE_OUTPUT);
gpio_set_level(reset, 0);
vTaskDelay(50 / portTICK_PERIOD_MS);
gpio_set_level(reset, 1);
}
dev->_address = I2CAddress;
dev->_flip = false;
}
void i2c_init(SSD1306_t * dev, int width, int height) {
dev->_width = width;
dev->_height = height;
dev->_pages = 8;
if (dev->_height == 32) dev->_pages = 4;
i2c_cmd_handle_t cmd = i2c_cmd_link_create();
i2c_master_start(cmd);
i2c_master_write_byte(cmd, (dev->_address << 1) | I2C_MASTER_WRITE, true);
i2c_master_write_byte(cmd, OLED_CONTROL_BYTE_CMD_STREAM, true);
i2c_master_write_byte(cmd, OLED_CMD_DISPLAY_OFF, true); // AE
i2c_master_write_byte(cmd, OLED_CMD_SET_MUX_RATIO, true); // A8
if (dev->_height == 64) i2c_master_write_byte(cmd, 0x3F, true);
if (dev->_height == 32) i2c_master_write_byte(cmd, 0x1F, true);
i2c_master_write_byte(cmd, OLED_CMD_SET_DISPLAY_OFFSET, true); // D3
i2c_master_write_byte(cmd, 0x00, true);
i2c_master_write_byte(cmd, OLED_CONTROL_BYTE_DATA_STREAM, true); // 40
//i2c_master_write_byte(cmd, OLED_CMD_SET_SEGMENT_REMAP, true); // A1
if (dev->_flip) {
i2c_master_write_byte(cmd, OLED_CMD_SET_SEGMENT_REMAP_0, true); // A0
} else {
i2c_master_write_byte(cmd, OLED_CMD_SET_SEGMENT_REMAP_1, true); // A1
}
i2c_master_write_byte(cmd, OLED_CMD_SET_COM_SCAN_MODE, true); // C8
i2c_master_write_byte(cmd, OLED_CMD_SET_DISPLAY_CLK_DIV, true); // D5
i2c_master_write_byte(cmd, 0x80, true);
i2c_master_write_byte(cmd, OLED_CMD_SET_COM_PIN_MAP, true); // DA
if (dev->_height == 64) i2c_master_write_byte(cmd, 0x12, true);
if (dev->_height == 32) i2c_master_write_byte(cmd, 0x02, true);
i2c_master_write_byte(cmd, OLED_CMD_SET_CONTRAST, true); // 81
i2c_master_write_byte(cmd, 0xFF, true);
i2c_master_write_byte(cmd, OLED_CMD_DISPLAY_RAM, true); // A4
i2c_master_write_byte(cmd, OLED_CMD_SET_VCOMH_DESELCT, true); // DB
i2c_master_write_byte(cmd, 0x40, true);
i2c_master_write_byte(cmd, OLED_CMD_SET_MEMORY_ADDR_MODE, true); // 20
//i2c_master_write_byte(cmd, OLED_CMD_SET_HORI_ADDR_MODE, true); // 00
i2c_master_write_byte(cmd, OLED_CMD_SET_PAGE_ADDR_MODE, true); // 02
// Set Lower Column Start Address for Page Addressing Mode
i2c_master_write_byte(cmd, 0x00, true);
// Set Higher Column Start Address for Page Addressing Mode
i2c_master_write_byte(cmd, 0x10, true);
i2c_master_write_byte(cmd, OLED_CMD_SET_CHARGE_PUMP, true); // 8D
i2c_master_write_byte(cmd, 0x14, true);
i2c_master_write_byte(cmd, OLED_CMD_DEACTIVE_SCROLL, true); // 2E
i2c_master_write_byte(cmd, OLED_CMD_DISPLAY_NORMAL, true); // A6
i2c_master_write_byte(cmd, OLED_CMD_DISPLAY_ON, true); // AF
i2c_master_stop(cmd);
esp_err_t espRc = i2c_master_cmd_begin(I2C_NUM_0, cmd, 10/portTICK_PERIOD_MS);
if (espRc == ESP_OK) {
ESP_LOGI(tag, "OLED configured successfully");
} else {
ESP_LOGE(tag, "OLED configuration failed. code: 0x%.2X", espRc);
}
i2c_cmd_link_delete(cmd);
}
void i2c_display_image(SSD1306_t * dev, int page, int seg, uint8_t * images, int width) {
i2c_cmd_handle_t cmd;
if (page >= dev->_pages) return;
if (seg >= dev->_width) return;
int _seg = seg + CONFIG_OFFSETX;
uint8_t columLow = _seg & 0x0F;
uint8_t columHigh = (_seg >> 4) & 0x0F;
int _page = page;
if (dev->_flip) {
_page = (dev->_pages - page) - 1;
}
cmd = i2c_cmd_link_create();
i2c_master_start(cmd);
i2c_master_write_byte(cmd, (dev->_address << 1) | I2C_MASTER_WRITE, true);
i2c_master_write_byte(cmd, OLED_CONTROL_BYTE_CMD_STREAM, true);
// Set Lower Column Start Address for Page Addressing Mode
i2c_master_write_byte(cmd, (0x00 + columLow), true);
// Set Higher Column Start Address for Page Addressing Mode
i2c_master_write_byte(cmd, (0x10 + columHigh), true);
// Set Page Start Address for Page Addressing Mode
i2c_master_write_byte(cmd, 0xB0 | _page, true);
i2c_master_stop(cmd);
i2c_master_cmd_begin(I2C_NUM_0, cmd, 10/portTICK_PERIOD_MS);
i2c_cmd_link_delete(cmd);
cmd = i2c_cmd_link_create();
i2c_master_start(cmd);
i2c_master_write_byte(cmd, (dev->_address << 1) | I2C_MASTER_WRITE, true);
i2c_master_write_byte(cmd, OLED_CONTROL_BYTE_DATA_STREAM, true);
i2c_master_write(cmd, images, width, true);
i2c_master_stop(cmd);
i2c_master_cmd_begin(I2C_NUM_0, cmd, 10/portTICK_PERIOD_MS);
i2c_cmd_link_delete(cmd);
}
void i2c_contrast(SSD1306_t * dev, int contrast) {
i2c_cmd_handle_t cmd;
int _contrast = contrast;
if (contrast < 0x0) _contrast = 0;
if (contrast > 0xFF) _contrast = 0xFF;
cmd = i2c_cmd_link_create();
i2c_master_start(cmd);
i2c_master_write_byte(cmd, (dev->_address << 1) | I2C_MASTER_WRITE, true);
i2c_master_write_byte(cmd, OLED_CONTROL_BYTE_CMD_STREAM, true);
i2c_master_write_byte(cmd, OLED_CMD_SET_CONTRAST, true); // 81
i2c_master_write_byte(cmd, _contrast, true);
i2c_master_stop(cmd);
i2c_master_cmd_begin(I2C_NUM_0, cmd, 10/portTICK_PERIOD_MS);
i2c_cmd_link_delete(cmd);
}
void i2c_hardware_scroll(SSD1306_t * dev, ssd1306_scroll_type_t scroll) {
esp_err_t espRc;
i2c_cmd_handle_t cmd = i2c_cmd_link_create();
i2c_master_start(cmd);
i2c_master_write_byte(cmd, (dev->_address << 1) | I2C_MASTER_WRITE, true);
i2c_master_write_byte(cmd, OLED_CONTROL_BYTE_CMD_STREAM, true);
if (scroll == SCROLL_RIGHT) {
i2c_master_write_byte(cmd, OLED_CMD_HORIZONTAL_RIGHT, true); // 26
i2c_master_write_byte(cmd, 0x00, true); // Dummy byte
i2c_master_write_byte(cmd, 0x00, true); // Define start page address
i2c_master_write_byte(cmd, 0x07, true); // Frame frequency
i2c_master_write_byte(cmd, 0x07, true); // Define end page address
i2c_master_write_byte(cmd, 0x00, true); //
i2c_master_write_byte(cmd, 0xFF, true); //
i2c_master_write_byte(cmd, OLED_CMD_ACTIVE_SCROLL, true); // 2F
}
if (scroll == SCROLL_LEFT) {
i2c_master_write_byte(cmd, OLED_CMD_HORIZONTAL_LEFT, true); // 27
i2c_master_write_byte(cmd, 0x00, true); // Dummy byte
i2c_master_write_byte(cmd, 0x00, true); // Define start page address
i2c_master_write_byte(cmd, 0x07, true); // Frame frequency
i2c_master_write_byte(cmd, 0x07, true); // Define end page address
i2c_master_write_byte(cmd, 0x00, true); //
i2c_master_write_byte(cmd, 0xFF, true); //
i2c_master_write_byte(cmd, OLED_CMD_ACTIVE_SCROLL, true); // 2F
}
if (scroll == SCROLL_DOWN) {
i2c_master_write_byte(cmd, OLED_CMD_CONTINUOUS_SCROLL, true); // 29
i2c_master_write_byte(cmd, 0x00, true); // Dummy byte
i2c_master_write_byte(cmd, 0x00, true); // Define start page address
i2c_master_write_byte(cmd, 0x07, true); // Frame frequency
//i2c_master_write_byte(cmd, 0x01, true); // Define end page address
i2c_master_write_byte(cmd, 0x00, true); // Define end page address
i2c_master_write_byte(cmd, 0x3F, true); // Vertical scrolling offset
i2c_master_write_byte(cmd, OLED_CMD_VERTICAL, true); // A3
i2c_master_write_byte(cmd, 0x00, true);
if (dev->_height == 64)
//i2c_master_write_byte(cmd, 0x7F, true);
i2c_master_write_byte(cmd, 0x40, true);
if (dev->_height == 32)
i2c_master_write_byte(cmd, 0x20, true);
i2c_master_write_byte(cmd, OLED_CMD_ACTIVE_SCROLL, true); // 2F
}
if (scroll == SCROLL_UP) {
i2c_master_write_byte(cmd, OLED_CMD_CONTINUOUS_SCROLL, true); // 29
i2c_master_write_byte(cmd, 0x00, true); // Dummy byte
i2c_master_write_byte(cmd, 0x00, true); // Define start page address
i2c_master_write_byte(cmd, 0x07, true); // Frame frequency
//i2c_master_write_byte(cmd, 0x01, true); // Define end page address
i2c_master_write_byte(cmd, 0x00, true); // Define end page address
i2c_master_write_byte(cmd, 0x01, true); // Vertical scrolling offset
i2c_master_write_byte(cmd, OLED_CMD_VERTICAL, true); // A3
i2c_master_write_byte(cmd, 0x00, true);
if (dev->_height == 64)
//i2c_master_write_byte(cmd, 0x7F, true);
i2c_master_write_byte(cmd, 0x40, true);
if (dev->_height == 32)
i2c_master_write_byte(cmd, 0x20, true);
i2c_master_write_byte(cmd, OLED_CMD_ACTIVE_SCROLL, true); // 2F
}
if (scroll == SCROLL_STOP) {
i2c_master_write_byte(cmd, OLED_CMD_DEACTIVE_SCROLL, true); // 2E
}
i2c_master_stop(cmd);
espRc = i2c_master_cmd_begin(I2C_NUM_0, cmd, 10/portTICK_PERIOD_MS);
if (espRc == ESP_OK) {
ESP_LOGD(tag, "Scroll command succeeded");
} else {
ESP_LOGE(tag, "Scroll command failed. code: 0x%.2X", espRc);
}
i2c_cmd_link_delete(cmd);
}

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#include <string.h>
#include "freertos/FreeRTOS.h"
#include "freertos/task.h"
#include "driver/spi_master.h"
#include "driver/gpio.h"
#include "esp_log.h"
#include "ssd1306.h"
#define TAG "SSD1306"
#ifdef CONFIG_IDF_TARGET_ESP32
#define LCD_HOST HSPI_HOST
#elif defined CONFIG_IDF_TARGET_ESP32S2
#define LCD_HOST SPI2_HOST
#elif defined CONFIG_IDF_TARGET_ESP32C3
#define LCD_HOST SPI2_HOST
#endif
static const int SPI_Command_Mode = 0;
static const int SPI_Data_Mode = 1;
static const int SPI_Frequency = 1000000;
void spi_master_init(SSD1306_t * dev, int16_t GPIO_MOSI, int16_t GPIO_SCLK, int16_t GPIO_CS, int16_t GPIO_DC, int16_t GPIO_RESET)
{
esp_err_t ret;
//gpio_pad_select_gpio( GPIO_CS );
gpio_reset_pin( GPIO_CS );
gpio_set_direction( GPIO_CS, GPIO_MODE_OUTPUT );
gpio_set_level( GPIO_CS, 0 );
//gpio_pad_select_gpio( GPIO_DC );
gpio_reset_pin( GPIO_DC );
gpio_set_direction( GPIO_DC, GPIO_MODE_OUTPUT );
gpio_set_level( GPIO_DC, 0 );
if ( GPIO_RESET >= 0 ) {
//gpio_pad_select_gpio( GPIO_RESET );
gpio_reset_pin( GPIO_RESET );
gpio_set_direction( GPIO_RESET, GPIO_MODE_OUTPUT );
gpio_set_level( GPIO_RESET, 0 );
vTaskDelay( pdMS_TO_TICKS( 100 ) );
gpio_set_level( GPIO_RESET, 1 );
}
spi_bus_config_t spi_bus_config = {
.mosi_io_num = GPIO_MOSI,
.miso_io_num = -1,
.sclk_io_num = GPIO_SCLK,
.quadwp_io_num = -1,
.quadhd_io_num = -1,
.max_transfer_sz = 0,
.flags = 0
};
ret = spi_bus_initialize( LCD_HOST, &spi_bus_config, SPI_DMA_CH_AUTO );
ESP_LOGI(TAG, "spi_bus_initialize=%d",ret);
assert(ret==ESP_OK);
spi_device_interface_config_t devcfg;
memset( &devcfg, 0, sizeof( spi_device_interface_config_t ) );
devcfg.clock_speed_hz = SPI_Frequency;
devcfg.spics_io_num = GPIO_CS;
devcfg.queue_size = 1;
spi_device_handle_t handle;
ret = spi_bus_add_device( LCD_HOST, &devcfg, &handle);
ESP_LOGI(TAG, "spi_bus_add_device=%d",ret);
assert(ret==ESP_OK);
dev->_dc = GPIO_DC;
dev->_SPIHandle = handle;
dev->_address = SPIAddress;
dev->_flip = false;
}
bool spi_master_write_byte(spi_device_handle_t SPIHandle, const uint8_t* Data, size_t DataLength )
{
spi_transaction_t SPITransaction;
if ( DataLength > 0 ) {
memset( &SPITransaction, 0, sizeof( spi_transaction_t ) );
SPITransaction.length = DataLength * 8;
SPITransaction.tx_buffer = Data;
spi_device_transmit( SPIHandle, &SPITransaction );
}
return true;
}
bool spi_master_write_command(SSD1306_t * dev, uint8_t Command )
{
static uint8_t CommandByte = 0;
CommandByte = Command;
gpio_set_level( dev->_dc, SPI_Command_Mode );
return spi_master_write_byte( dev->_SPIHandle, &CommandByte, 1 );
}
bool spi_master_write_data(SSD1306_t * dev, const uint8_t* Data, size_t DataLength )
{
gpio_set_level( dev->_dc, SPI_Data_Mode );
return spi_master_write_byte( dev->_SPIHandle, Data, DataLength );
}
void spi_init(SSD1306_t * dev, int width, int height)
{
dev->_width = width;
dev->_height = height;
dev->_pages = 8;
if (dev->_height == 32) dev->_pages = 4;
spi_master_write_command(dev, OLED_CMD_DISPLAY_OFF); // AE
spi_master_write_command(dev, OLED_CMD_SET_MUX_RATIO); // A8
if (dev->_height == 64) spi_master_write_command(dev, 0x3F);
if (dev->_height == 32) spi_master_write_command(dev, 0x1F);
spi_master_write_command(dev, OLED_CMD_SET_DISPLAY_OFFSET); // D3
spi_master_write_command(dev, 0x00);
spi_master_write_command(dev, OLED_CONTROL_BYTE_DATA_STREAM); // 40
if (dev->_flip) {
spi_master_write_command(dev, OLED_CMD_SET_SEGMENT_REMAP_0); // A0
} else {
spi_master_write_command(dev, OLED_CMD_SET_SEGMENT_REMAP_1); // A1
}
//spi_master_write_command(dev, OLED_CMD_SET_SEGMENT_REMAP); // A1
spi_master_write_command(dev, OLED_CMD_SET_COM_SCAN_MODE); // C8
spi_master_write_command(dev, OLED_CMD_SET_DISPLAY_CLK_DIV); // D5
spi_master_write_command(dev, 0x80);
spi_master_write_command(dev, OLED_CMD_SET_COM_PIN_MAP); // DA
if (dev->_height == 64) spi_master_write_command(dev, 0x12);
if (dev->_height == 32) spi_master_write_command(dev, 0x02);
spi_master_write_command(dev, OLED_CMD_SET_CONTRAST); // 81
spi_master_write_command(dev, 0xFF);
spi_master_write_command(dev, OLED_CMD_DISPLAY_RAM); // A4
spi_master_write_command(dev, OLED_CMD_SET_VCOMH_DESELCT); // DB
spi_master_write_command(dev, 0x40);
spi_master_write_command(dev, OLED_CMD_SET_MEMORY_ADDR_MODE); // 20
//spi_master_write_command(dev, OLED_CMD_SET_HORI_ADDR_MODE); // 00
spi_master_write_command(dev, OLED_CMD_SET_PAGE_ADDR_MODE); // 02
// Set Lower Column Start Address for Page Addressing Mode
spi_master_write_command(dev, 0x00);
// Set Higher Column Start Address for Page Addressing Mode
spi_master_write_command(dev, 0x10);
spi_master_write_command(dev, OLED_CMD_SET_CHARGE_PUMP); // 8D
spi_master_write_command(dev, 0x14);
spi_master_write_command(dev, OLED_CMD_DEACTIVE_SCROLL); // 2E
spi_master_write_command(dev, OLED_CMD_DISPLAY_NORMAL); // A6
spi_master_write_command(dev, OLED_CMD_DISPLAY_ON); // AF
}
void spi_display_image(SSD1306_t * dev, int page, int seg, uint8_t * images, int width)
{
if (page >= dev->_pages) return;
if (seg >= dev->_width) return;
int _seg = seg + CONFIG_OFFSETX;
uint8_t columLow = _seg & 0x0F;
uint8_t columHigh = (_seg >> 4) & 0x0F;
int _page = page;
if (dev->_flip) {
_page = (dev->_pages - page) - 1;
}
// Set Lower Column Start Address for Page Addressing Mode
spi_master_write_command(dev, (0x00 + columLow));
// Set Higher Column Start Address for Page Addressing Mode
spi_master_write_command(dev, (0x10 + columHigh));
// Set Page Start Address for Page Addressing Mode
spi_master_write_command(dev, 0xB0 | _page);
spi_master_write_data(dev, images, width);
}
void spi_contrast(SSD1306_t * dev, int contrast) {
int _contrast = contrast;
if (contrast < 0x0) _contrast = 0;
if (contrast > 0xFF) _contrast = 0xFF;
spi_master_write_command(dev, OLED_CMD_SET_CONTRAST); // 81
spi_master_write_command(dev, _contrast);
}
void spi_hardware_scroll(SSD1306_t * dev, ssd1306_scroll_type_t scroll)
{
if (scroll == SCROLL_RIGHT) {
spi_master_write_command(dev, OLED_CMD_HORIZONTAL_RIGHT); // 26
spi_master_write_command(dev, 0x00); // Dummy byte
spi_master_write_command(dev, 0x00); // Define start page address
spi_master_write_command(dev, 0x07); // Frame frequency
spi_master_write_command(dev, 0x07); // Define end page address
spi_master_write_command(dev, 0x00); //
spi_master_write_command(dev, 0xFF); //
spi_master_write_command(dev, OLED_CMD_ACTIVE_SCROLL); // 2F
}
if (scroll == SCROLL_LEFT) {
spi_master_write_command(dev, OLED_CMD_HORIZONTAL_LEFT); // 27
spi_master_write_command(dev, 0x00); // Dummy byte
spi_master_write_command(dev, 0x00); // Define start page address
spi_master_write_command(dev, 0x07); // Frame frequency
spi_master_write_command(dev, 0x07); // Define end page address
spi_master_write_command(dev, 0x00); //
spi_master_write_command(dev, 0xFF); //
spi_master_write_command(dev, OLED_CMD_ACTIVE_SCROLL); // 2F
}
if (scroll == SCROLL_DOWN) {
spi_master_write_command(dev, OLED_CMD_CONTINUOUS_SCROLL); // 29
spi_master_write_command(dev, 0x00); // Dummy byte
spi_master_write_command(dev, 0x00); // Define start page address
spi_master_write_command(dev, 0x07); // Frame frequency
//spi_master_write_command(dev, 0x01); // Define end page address
spi_master_write_command(dev, 0x00); // Define end page address
spi_master_write_command(dev, 0x3F); // Vertical scrolling offset
spi_master_write_command(dev, OLED_CMD_VERTICAL); // A3
spi_master_write_command(dev, 0x00);
if (dev->_height == 64)
spi_master_write_command(dev, 0x40);
if (dev->_height == 32)
spi_master_write_command(dev, 0x20);
spi_master_write_command(dev, OLED_CMD_ACTIVE_SCROLL); // 2F
}
if (scroll == SCROLL_UP) {
spi_master_write_command(dev, OLED_CMD_CONTINUOUS_SCROLL); // 29
spi_master_write_command(dev, 0x00); // Dummy byte
spi_master_write_command(dev, 0x00); // Define start page address
spi_master_write_command(dev, 0x07); // Frame frequency
//spi_master_write_command(dev, 0x01); // Define end page address
spi_master_write_command(dev, 0x00); // Define end page address
spi_master_write_command(dev, 0x01); // Vertical scrolling offset
spi_master_write_command(dev, OLED_CMD_VERTICAL); // A3
spi_master_write_command(dev, 0x00);
if (dev->_height == 64)
spi_master_write_command(dev, 0x40);
if (dev->_height == 32)
spi_master_write_command(dev, 0x20);
spi_master_write_command(dev, OLED_CMD_ACTIVE_SCROLL); // 2F
}
if (scroll == SCROLL_STOP) {
spi_master_write_command(dev, OLED_CMD_DEACTIVE_SCROLL); // 2E
}
}