SPMOD - Eink
2024-07-25
Overview
SPMOD_Eink(E-paper display module) uses GDEW0154M09 E-paper display.
SPMOD - Eink Introduction
- Using Sipeed-SPMOD interface(2.54mm * 8PIN ),unified MaixPy board interface
- Connect to the screen through the SP-MOD SPI interface
- E-paper display module:GDEW0154M09 is a 1.54" E-paper display,with SPI interface,and has 24P FPC(0.5mm pitch).
- Support 1 bit Black/Write full display capabilities
- Display Resolution:200x200
- Size:35303.8mm
GDEW0154M09 E-paper display Introduction
Features: | --- |
---|---|
Supply voltage of external power supply | 2.3V~3.6V |
Supply current of external power supply | 1~3mA |
Range of working temperature | -40℃~85℃ |
Sleep Status of Current | <5uA |
Screen Size | 1.54 inch |
Active Area | 27.6mm*27.6mm |
Display Resolution | 200*200 |
Color | 1 bit Black/Write full display capabilities |
interface | 24P FPC (0.5mm pitch) |
An integrated circuit contains gate buffer, source buffer, interface, timing control logic, oscillator,
DC-DC, SRAM, LUT, VCOM, and border are supplied with each panel.
SPMOD_Eink pin description :
Pin | Name | Type | Description |
---|---|---|---|
1 | GND | G | Ground |
2 | CS | I | Chip Select input pin |
3 | D/C | I | Data/Command control pin |
4 | RES | I | Reset (active low) |
5 | 3V3 | V | Power supply(3.3V) |
6 | SCK | I | SPI clock pin |
7 | SI | I/O | Master Out Slave In |
8 | BSY | O | Busy status output pin |
- Mode of connection::
MCU:FUN(IO) | SP_Eink |
---|---|
GPIOHS(IO_7) | RES |
SPIOHS(IO_15) | D/C |
SPIOHS(IO_20) | CS |
SPI:SCK(IO_21) | SCK |
SPI:MOSI(IO_8) | SI |
GPIOHS(IO_6) | BSY |
2.3-3.6V | 3.3V |
GND | GND |
AT instruction list
Instruction | description |
---|---|
0x10 | start transport b/w data |
0x13 | start transport r/w data |
0x12 | refresh data to screen |
See GDEW0154M09.pdf for more information
Usage
Process
1.initializatin
2.create an image and fill it
3.send image and refresh
C:
spi_init(1, SPI_WORK_MODE_0, SPI_FF_STANDARD, DATALENGTH, 0);
fpioa_set_function(SPI_Eink_CS_PIN_NUM, FUNC_SPI1_SS0); // SPI_Eink_CS_PIN_NUM: 20;
fpioa_set_function(SPI_Eink_SCK_PIN_NUM, FUNC_SPI1_SCLK); // SPI_Eink_SCK_PIN_NUM: 21;
fpioa_set_function(SPI_Eink_MOSI_PIN_NUM, FUNC_SPI1_D0); // SPI_Eink_MOSI_PIN_NUM: 8;
fpioa_set_function(SPI_Eink_DC_PIN_NUM, FUNC_GPIOHS0 + SPI_Eink_DC_GPIO_NUM); // SPI_Eink_DC_PIN_NUM: 21;
fpioa_set_function(SPI_Eink_RST_PIN_NUM, FUNC_GPIOHS0 + SPI_Eink_RST_GPIO_NUM); // SPI_Eink_RST_PIN_NUM: 7;
fpioa_set_function(SPI_Eink_BL_PIN_NUM, FUNC_GPIOHS0 + SPI_Eink_BL_GPIO_NUM); // SPI_Eink_BL_PIN_NUM: 6;
gpiohs_set_drive_mode(SPI_Eink_DC_GPIO_NUM, GPIO_DM_OUTPUT);
gpiohs_set_drive_mode(SPI_Eink_RST_GPIO_NUM, GPIO_DM_OUTPUT);
gpiohs_set_pin(SPI_Eink_DC_GPIO_NUM, GPIO_PV_HIGH);
gpiohs_set_pin(SPI_Eink_RST_GPIO_NUM, GPIO_PV_HIGH);
gpiohs_set_drive_mode(SPI_Eink_BL_PIN_NUM, GPIO_DM_INPUT_PULL_UP);
gpiohs_set_pin_edge(SPI_Eink_BL_PIN_NUM, GPIO_PE_BOTH);
EPD_DisplayInit(); //EPD init
//Paint initialization
Paint_NewImage(BlackImage, EPD_WIDTH, EPD_HEIGHT, 270, WHITE); //Set screen size and display orientation
Paint_SelectImage(BlackImage); //Set the virtual canvas data storage location
Paint_Clear(WHITE); //clear paint
Paint_DrawString_EN(0, 0, "sipeed", &Font8, WHITE, BLACK); //5*8
Paint_DrawString_EN(0, 10, "sipeed", &Font12, WHITE, BLACK); //7*12
Paint_DrawString_EN(0, 25, "sipeed", &Font16, WHITE, BLACK); //11*16
Paint_DrawString_EN(0, 45, "sipeed", &Font20, WHITE, BLACK); //14*20
Paint_DrawString_EN(0, 80, "sipeed", &Font24, WHITE, BLACK); //17*24
EPD_FullDisplay(BlackImage, BlackImage, 0); //display image
MaixPy:
spi1 = SPI(SPI.SPI1, mode=SPI.MODE_MASTER, baudrate=600 * 1000,
polarity=0, phase=0, bits=8, firstbit=SPI.MSB, sck=21, mosi=8)
fm.register(20, fm.fpioa.GPIOHS20, force=True) # SPI_Eink_SS_PIN_NUM: 20;
fm.register(15, fm.fpioa.GPIOHS15, force=True) # SPI_Eink_DC_PIN_NUM: 15;
fm.register(6, fm.fpioa.GPIOHS6, force=True) # SPI_Eink_BUSY_PIN_NUM: 6;
fm.register(7, fm.fpioa.GPIOHS7, force=True) # SPI_Eink_RST_PIN_NUM: 7;
cs = GPIO(GPIO.GPIOHS20, GPIO.OUT)
dc = GPIO(GPIO.GPIOHS15, GPIO.OUT)
busy = GPIO(GPIO.GPIOHS6, GPIO.IN, GPIO.PULL_DOWN)
rst = GPIO(GPIO.GPIOHS7, GPIO.OUT)
epd = SPEink(spi1, cs, dc, rst, busy, SPEink_WIDTH, SPEink_HEIGHT, SPEink_ROTATION)
epd.init()
img = image.Image()
img = img.resize(200, 200)
img.draw_line(0, 0, 100, 100)
epd.display(img)
Runtime environments:
Language | Board | SDK/Firmware version |
---|---|---|
C | MaixCube | kendryte-standalone-sdk v0.5.6 |
MaixPy | MaixCube | maixpy v0.5.1 |
The MaixPy firmware is recommended to compile from the latest source
Result
C
MaixPy
Transplant
The following parameters need to be modified
C
// board_config.h #define SPI_INDEX 1 #define SPI_SCLK_RATE 600 * 1000 #define SPI_CHIP_SELECT_NSS 0 //SPI_CHIP_SELECT_0 #define SPI_Eink_CS_PIN_NUM 20 #define SPI_Eink_SCK_PIN_NUM 21 #define SPI_Eink_MOSI_PIN_NUM 8 #define SPI_Eink_DC_PIN_NUM 15 #define SPI_Eink_BL_PIN_NUM 6 #define SPI_Eink_RST_PIN_NUM 7 #define SPI_Eink_DC_GPIO_NUM 15 #define SPI_Eink_BL_GPIO_NUM 6 #define SPI_Eink_RST_GPIO_NUM 7
MaixPy
################### config ################### SPI_Eink_NUM = SPI.SPI1 SPI_Eink_DC_PIN_NUM = const(15) SPI_Eink_BUSY_PIN_NUM = const(6) SPI_Eink_RST_PIN_NUM = const(7) SPI_Eink_CS_PIN_NUM = const(20) SPI_Eink_SCK_PIN_NUM = const(21) SPI_Eink_MOSI_PIN_NUM = const(8) SPI_Eink_FREQ_KHZ = const(600) ##############################################
Outlook
- SPMOD_Eink Size drawing:
Resource Link
Resource | --- |
---|---|
Website | www.sipeed.com |
Github | https://github.com/sipeed |
BBS | http://bbs.sipeed.com |
Wiki | http://maixpy.sipeed.com |
Sipeed model shop | https://maixhub.com/ |
SDK Relevant information | dl.sipeed.com/MAIX/SDK |
HDK Relevant information | dl.sipeed.com/MAIX/HDK |
E-mail(Technical Support and Business Cooperation) | support@sipeed.com |
Telgram link | https://t.me/sipeed |