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Unable to display anything on ST7789 screen via NUCLEO STM32F070RB
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2022-10-31 06:43 AM
This question does not show any research effort; it is unclear or not useful
I am pretty a newbie in display control and I am struggling with my simple application. I need to calculate some numbers on my nucleo and then display them on a screen. Since this is the first time I use a display, I tried first to setup everything correctly and then working on my purpose but I am struggling with the first step.
Basically, the screen does not show anything but it should show some test animations. I do not understand where the error is. Thank you so much in advance!!!
Here the hardware details:
- Board: NUCLEO-F070RB
- Display: AFL240240A0-1.3INTM-ANO Orient Display (TFT display, 240x240, ST7789V controller)
Here the connections via jumper wires (diplay -> Board):
- GND -> GND
- VCC -> 3.3V
- SCL -> PA5 (SCK)
- SDA -> PA7 (MOSI)
- RST -> PC7
- DC -> PA9
- CS -> PB6
- BLK -> PA8
I adapted the codes from: LINK(github.com/Floyd-Fish/ST7789-STM32)
Here the main codes (main.c, st7789.h, st7789.c):
#include "main.h"
#include "st7789.h"
SPI_HandleTypeDef hspi1;
void SystemClock_Config(void);
static void MX_GPIO_Init(void);
static void MX_SPI1_Init(void);
int main(void)
{
HAL_Init();
SystemClock_Config();
MX_GPIO_Init();
MX_SPI1_Init();
ST7789_Init();
ST7789_Test();
while (1)
{
}
}
void SystemClock_Config(void)
{
RCC_OscInitTypeDef RCC_OscInitStruct = {0};
RCC_ClkInitTypeDef RCC_ClkInitStruct = {0};
/** Initializes the RCC Oscillators according to the specified parameters
* in the RCC_OscInitTypeDef structure.
*/
RCC_OscInitStruct.OscillatorType = RCC_OSCILLATORTYPE_HSE;
RCC_OscInitStruct.HSEState = RCC_HSE_ON;
RCC_OscInitStruct.PLL.PLLState = RCC_PLL_ON;
RCC_OscInitStruct.PLL.PLLSource = RCC_PLLSOURCE_HSE;
RCC_OscInitStruct.PLL.PLLMUL = RCC_PLL_MUL6;
RCC_OscInitStruct.PLL.PREDIV = RCC_PREDIV_DIV1;
if (HAL_RCC_OscConfig(&RCC_OscInitStruct) != HAL_OK)
{
Error_Handler();
}
/** Initializes the CPU, AHB and APB buses clocks
*/
RCC_ClkInitStruct.ClockType = RCC_CLOCKTYPE_HCLK|RCC_CLOCKTYPE_SYSCLK
|RCC_CLOCKTYPE_PCLK1;
RCC_ClkInitStruct.SYSCLKSource = RCC_SYSCLKSOURCE_PLLCLK;
RCC_ClkInitStruct.AHBCLKDivider = RCC_SYSCLK_DIV1;
RCC_ClkInitStruct.APB1CLKDivider = RCC_HCLK_DIV1;
if (HAL_RCC_ClockConfig(&RCC_ClkInitStruct, FLASH_LATENCY_1) != HAL_OK)
{
Error_Handler();
}
/** Enables the Clock Security System
*/
HAL_RCC_EnableCSS();
}
static void MX_SPI1_Init(void)
{
/* SPI1 parameter configuration*/
hspi1.Instance = SPI1;
hspi1.Init.Mode = SPI_MODE_MASTER;
hspi1.Init.Direction = SPI_DIRECTION_1LINE;
hspi1.Init.DataSize = SPI_DATASIZE_8BIT;
hspi1.Init.CLKPolarity = SPI_POLARITY_HIGH;
hspi1.Init.CLKPhase = SPI_PHASE_1EDGE;
hspi1.Init.NSS = SPI_NSS_SOFT;
hspi1.Init.BaudRatePrescaler = SPI_BAUDRATEPRESCALER_4;
hspi1.Init.FirstBit = SPI_FIRSTBIT_MSB;
hspi1.Init.TIMode = SPI_TIMODE_DISABLE;
hspi1.Init.CRCCalculation = SPI_CRCCALCULATION_DISABLE;
hspi1.Init.CRCPolynomial = 7;
hspi1.Init.CRCLength = SPI_CRC_LENGTH_DATASIZE;
hspi1.Init.NSSPMode = SPI_NSS_PULSE_ENABLE;
if (HAL_SPI_Init(&hspi1) != HAL_OK)
{
Error_Handler();
}
}
static void MX_GPIO_Init(void)
{
GPIO_InitTypeDef GPIO_InitStruct = {0};
/* GPIO Ports Clock Enable */
__HAL_RCC_GPIOF_CLK_ENABLE();
__HAL_RCC_GPIOA_CLK_ENABLE();
__HAL_RCC_GPIOC_CLK_ENABLE();
__HAL_RCC_GPIOB_CLK_ENABLE();
/*Configure GPIO pin Output Level - BLK and DC*/
HAL_GPIO_WritePin(GPIOA, GPIO_PIN_8|GPIO_PIN_9, GPIO_PIN_RESET);
/*Configure GPIO pin Output Level - RST */
HAL_GPIO_WritePin(GPIOC, GPIO_PIN_7, GPIO_PIN_RESET);
/*Configure GPIO pin Output Level - CS */
HAL_GPIO_WritePin(GPIOB, GPIO_PIN_6, GPIO_PIN_RESET);
/*Configure GPIO pins : LD2_Pin ST7789_BLK_Pin ST7789_DC_Pin */
GPIO_InitStruct.Pin = GPIO_PIN_8|GPIO_PIN_9;
GPIO_InitStruct.Mode = GPIO_MODE_OUTPUT_PP;
GPIO_InitStruct.Pull = GPIO_NOPULL;
GPIO_InitStruct.Speed = GPIO_SPEED_FREQ_LOW;
HAL_GPIO_Init(GPIOA, &GPIO_InitStruct);
/*Configure GPIO pin : ST7789_RST_Pin */
GPIO_InitStruct.Pin = GPIO_PIN_7;
GPIO_InitStruct.Mode = GPIO_MODE_OUTPUT_PP;
GPIO_InitStruct.Pull = GPIO_NOPULL;
GPIO_InitStruct.Speed = GPIO_SPEED_FREQ_LOW;
HAL_GPIO_Init(GPIOC, &GPIO_InitStruct);
/*Configure GPIO pin : ST7789_CS_Pin */
GPIO_InitStruct.Pin = GPIO_PIN_6;
GPIO_InitStruct.Mode = GPIO_MODE_OUTPUT_PP;
GPIO_InitStruct.Pull = GPIO_NOPULL;
GPIO_InitStruct.Speed = GPIO_SPEED_FREQ_LOW;
HAL_GPIO_Init(GPIOB, &GPIO_InitStruct);
}
void Error_Handler(void)
{
__disable_irq();
while (1)
{
}
}
#ifdef USE_FULL_ASSERT
void assert_failed(uint8_t *file, uint32_t line)
{
}
#endif Solved! Go to Solution.
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2022-10-31 07:08 AM
You waste space here with this, you twicr place header file , and no your test code...
But primary in header you have
/* choose whether use DMA or not */
#define USE_DMAand in main no init for DMA...
5 REPLIES 5
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2022-10-31 06:43 AM
st7789.h:
#ifndef __ST7789_H
#define __ST7789_H
#include "fonts.h"
#include "main.h"
/* choose a Hardware SPI port to use. */
#define ST7789_SPI_PORT hspi1
extern SPI_HandleTypeDef ST7789_SPI_PORT;
/* choose whether use DMA or not */
#define USE_DMA
/* If u need CS control, comment below*/
//#define CFG_NO_CS
/* Pin connection*/
#define ST7789_RST_PORT GPIOC
#define ST7789_RST_PIN GPIO_PIN_7
#define ST7789_DC_PORT GPIOA
#define ST7789_DC_PIN GPIO_PIN_9
#ifndef CFG_NO_CS
#define ST7789_CS_PORT GPIOB
#define ST7789_CS_PIN GPIO_PIN_6
#endif
/* If u need Backlight control, uncomment below */
#define BLK_PORT GPIOA
#define BLK_PIN GPIO_PIN_8
/* Choose a type you are using */
#define USING_240X240
/* Choose a display rotation you want to use: (0-3) */
//#define ST7789_ROTATION 0
//#define ST7789_ROTATION 1
#define ST7789_ROTATION 2 // use Normally on 240x240
//#define ST7789_ROTATION 3
#ifdef USING_240X240
#define ST7789_WIDTH 240
#define ST7789_HEIGHT 240
#if ST7789_ROTATION == 0
#define X_SHIFT 0
#define Y_SHIFT 80
#elif ST7789_ROTATION == 1
#define X_SHIFT 80
#define Y_SHIFT 0
#elif ST7789_ROTATION == 2
#define X_SHIFT 0
#define Y_SHIFT 0
#elif ST7789_ROTATION == 3
#define X_SHIFT 0
#define Y_SHIFT 0
#endif
#endif
#define WHITE 0xFFFF
#define BLACK 0x0000
#define BLUE 0x001F
#define RED 0xF800
#define MAGENTA 0xF81F
#define GREEN 0x07E0
#define CYAN 0x7FFF
#define YELLOW 0xFFE0
/* Control Registers and constant codes */
#define ST7789_NOP 0x00
#define ST7789_SWRESET 0x01
#define ST7789_RDDID 0x04
#define ST7789_RDDST 0x09
#define ST7789_SLPIN 0x10
#define ST7789_SLPOUT 0x11
#define ST7789_PTLON 0x12
#define ST7789_NORON 0x13
#define ST7789_INVOFF 0x20
#define ST7789_INVON 0x21
#define ST7789_DISPOFF 0x28
#define ST7789_DISPON 0x29
#define ST7789_CASET 0x2A
#define ST7789_RASET 0x2B
#define ST7789_RAMWR 0x2C
#define ST7789_RAMRD 0x2E
#define ST7789_PTLAR 0x30
#define ST7789_COLMOD 0x3A
#define ST7789_MADCTL 0x36
/**
* Memory Data Access Control Register (0x36H)
* MAP: D7 D6 D5 D4 D3 D2 D1 D0
* param: MY MX MV ML RGB MH - -
*
*/
/* Page Address Order ('0': Top to Bottom, '1': the opposite) */
#define ST7789_MADCTL_MY 0x80
/* Column Address Order ('0': Left to Right, '1': the opposite) */
#define ST7789_MADCTL_MX 0x40
/* Page/Column Order ('0' = Normal Mode, '1' = Reverse Mode) */
#define ST7789_MADCTL_MV 0x20
/* Line Address Order ('0' = LCD Refresh Top to Bottom, '1' = the opposite) */
#define ST7789_MADCTL_ML 0x10
/* RGB/BGR Order ('0' = RGB, '1' = BGR) */
#define ST7789_MADCTL_RGB 0x00
#define ST7789_RDID1 0xDA
#define ST7789_RDID2 0xDB
#define ST7789_RDID3 0xDC
#define ST7789_RDID4 0xDD
/* Advanced options */
#define ST7789_COLOR_MODE_16bit 0x55 // RGB565 (16bit)
#define ST7789_COLOR_MODE_18bit 0x66 // RGB666 (18bit)
/* Basic operations */
#define ST7789_RST_Clr() HAL_GPIO_WritePin(ST7789_RST_PORT, ST7789_RST_PIN, GPIO_PIN_RESET)
#define ST7789_RST_Set() HAL_GPIO_WritePin(ST7789_RST_PORT, ST7789_RST_PIN, GPIO_PIN_SET)
#define ST7789_DC_Clr() HAL_GPIO_WritePin(ST7789_DC_PORT, ST7789_DC_PIN, GPIO_PIN_RESET)
#define ST7789_DC_Set() HAL_GPIO_WritePin(ST7789_DC_PORT, ST7789_DC_PIN, GPIO_PIN_SET)
#ifndef CFG_NO_CS
#define ST7789_Select() HAL_GPIO_WritePin(ST7789_CS_PORT, ST7789_CS_PIN, GPIO_PIN_RESET)
#define ST7789_UnSelect() HAL_GPIO_WritePin(ST7789_CS_PORT, ST7789_CS_PIN, GPIO_PIN_SET)
#else
#define ST7789_Select() asm("nop")
#define ST7789_UnSelect() asm("nop")
#endif
#define ABS(x) ((x) > 0 ? (x) : -(x))
/* Basic functions. */
void ST7789_Init(void);
void ST7789_SetRotation(uint8_t m);
void ST7789_Fill_Color(uint16_t color);
void ST7789_DrawPixel(uint16_t x, uint16_t y, uint16_t color);
void ST7789_Fill(uint16_t xSta, uint16_t ySta, uint16_t xEnd, uint16_t yEnd, uint16_t color);
void ST7789_DrawPixel_4px(uint16_t x, uint16_t y, uint16_t color);
/* Graphical functions. */
void ST7789_DrawLine(uint16_t x1, uint16_t y1, uint16_t x2, uint16_t y2, uint16_t color);
void ST7789_DrawRectangle(uint16_t x1, uint16_t y1, uint16_t x2, uint16_t y2, uint16_t color);
void ST7789_DrawCircle(uint16_t x0, uint16_t y0, uint8_t r, uint16_t color);
void ST7789_DrawImage(uint16_t x, uint16_t y, uint16_t w, uint16_t h, const uint16_t *data);
void ST7789_InvertColors(uint8_t invert);
/* Text functions. */
void ST7789_WriteChar(uint16_t x, uint16_t y, char ch, FontDef font, uint16_t color, uint16_t bgcolor);
void ST7789_WriteString(uint16_t x, uint16_t y, const char *str, FontDef font, uint16_t color, uint16_t bgcolor);
/* Extented Graphical functions. */
void ST7789_DrawFilledRectangle(uint16_t x, uint16_t y, uint16_t w, uint16_t h, uint16_t color);
void ST7789_DrawTriangle(uint16_t x1, uint16_t y1, uint16_t x2, uint16_t y2, uint16_t x3, uint16_t y3, uint16_t color);
void ST7789_DrawFilledTriangle(uint16_t x1, uint16_t y1, uint16_t x2, uint16_t y2, uint16_t x3, uint16_t y3, uint16_t color);
void ST7789_DrawFilledCircle(int16_t x0, int16_t y0, int16_t r, uint16_t color);
/* Command functions */
void ST7789_TearEffect(uint8_t tear);
/* Simple test function. */
void ST7789_Test(void);
#ifndef ST7789_ROTATION
#error You should at least choose a display rotation!
#endif
#endifOptions
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2022-10-31 06:47 AM
st7789.c:
#ifndef __ST7789_H
#define __ST7789_H
#include "fonts.h"
#include "main.h"
/* choose a Hardware SPI port to use. */
#define ST7789_SPI_PORT hspi1
extern SPI_HandleTypeDef ST7789_SPI_PORT;
/* choose whether use DMA or not */
#define USE_DMA
/* If u need CS control, comment below*/
//#define CFG_NO_CS
/* Pin connection*/
#define ST7789_RST_PORT GPIOC
#define ST7789_RST_PIN GPIO_PIN_7
#define ST7789_DC_PORT GPIOA
#define ST7789_DC_PIN GPIO_PIN_9
#ifndef CFG_NO_CS
#define ST7789_CS_PORT GPIOB
#define ST7789_CS_PIN GPIO_PIN_6
#endif
/* If u need Backlight control, uncomment below */
#define BLK_PORT GPIOA
#define BLK_PIN GPIO_PIN_8
/*
* Comment one to use another.
* 3 parameters can be chose
* 135x240(0.96 inch) & 240x240(1.3inch) & 170x320(1.9inch)
* X_SHIFT & Y_SHIFT are used to adapt different display's resolution
*/
/* Choose a type you are using */
//#define USING_135X240
#define USING_240X240
//#define USING_170X320
/* Choose a display rotation you want to use: (0-3) */
//#define ST7789_ROTATION 0
//#define ST7789_ROTATION 1
#define ST7789_ROTATION 2 // use Normally on 240x240
//#define ST7789_ROTATION 3
#ifdef USING_135X240
#if ST7789_ROTATION == 0
#define ST7789_WIDTH 135
#define ST7789_HEIGHT 240
#define X_SHIFT 53
#define Y_SHIFT 40
#endif
#if ST7789_ROTATION == 1
#define ST7789_WIDTH 240
#define ST7789_HEIGHT 135
#define X_SHIFT 40
#define Y_SHIFT 52
#endif
#if ST7789_ROTATION == 2
#define ST7789_WIDTH 135
#define ST7789_HEIGHT 240
#define X_SHIFT 52
#define Y_SHIFT 40
#endif
#if ST7789_ROTATION == 3
#define ST7789_WIDTH 240
#define ST7789_HEIGHT 135
#define X_SHIFT 40
#define Y_SHIFT 53
#endif
#endif
#ifdef USING_240X240
#define ST7789_WIDTH 240
#define ST7789_HEIGHT 240
#if ST7789_ROTATION == 0
#define X_SHIFT 0
#define Y_SHIFT 80
#elif ST7789_ROTATION == 1
#define X_SHIFT 80
#define Y_SHIFT 0
#elif ST7789_ROTATION == 2
#define X_SHIFT 0
#define Y_SHIFT 0
#elif ST7789_ROTATION == 3
#define X_SHIFT 0
#define Y_SHIFT 0
#endif
#endif
#ifdef USING_170X320
#if ST7789_ROTATION == 0
#define ST7789_WIDTH 170
#define ST7789_HEIGHT 320
#define X_SHIFT 35
#define Y_SHIFT 0
#endif
#if ST7789_ROTATION == 1
#define ST7789_WIDTH 320
#define ST7789_HEIGHT 170
#define X_SHIFT 0
#define Y_SHIFT 35
#endif
#if ST7789_ROTATION == 2
#define ST7789_WIDTH 170
#define ST7789_HEIGHT 320
#define X_SHIFT 35
#define Y_SHIFT 0
#endif
#if ST7789_ROTATION == 3
#define ST7789_WIDTH 320
#define ST7789_HEIGHT 170
#define X_SHIFT 0
#define Y_SHIFT 35
#endif
#endif
/**
*Color of pen
*If you want to use another color, you can choose one in RGB565 format.
*/
#define WHITE 0xFFFF
#define BLACK 0x0000
#define BLUE 0x001F
#define RED 0xF800
#define MAGENTA 0xF81F
#define GREEN 0x07E0
#define CYAN 0x7FFF
#define YELLOW 0xFFE0
#define GRAY 0X8430
#define BRED 0XF81F
#define GRED 0XFFE0
#define GBLUE 0X07FF
#define BROWN 0XBC40
#define BRRED 0XFC07
#define DARKBLUE 0X01CF
#define LIGHTBLUE 0X7D7C
#define GRAYBLUE 0X5458
#define LIGHTGREEN 0X841F
#define LGRAY 0XC618
#define LGRAYBLUE 0XA651
#define LBBLUE 0X2B12
/* Control Registers and constant codes */
#define ST7789_NOP 0x00
#define ST7789_SWRESET 0x01
#define ST7789_RDDID 0x04
#define ST7789_RDDST 0x09
#define ST7789_SLPIN 0x10
#define ST7789_SLPOUT 0x11
#define ST7789_PTLON 0x12
#define ST7789_NORON 0x13
#define ST7789_INVOFF 0x20
#define ST7789_INVON 0x21
#define ST7789_DISPOFF 0x28
#define ST7789_DISPON 0x29
#define ST7789_CASET 0x2A
#define ST7789_RASET 0x2B
#define ST7789_RAMWR 0x2C
#define ST7789_RAMRD 0x2E
#define ST7789_PTLAR 0x30
#define ST7789_COLMOD 0x3A
#define ST7789_MADCTL 0x36
/**
* Memory Data Access Control Register (0x36H)
* MAP: D7 D6 D5 D4 D3 D2 D1 D0
* param: MY MX MV ML RGB MH - -
*
*/
/* Page Address Order ('0': Top to Bottom, '1': the opposite) */
#define ST7789_MADCTL_MY 0x80
/* Column Address Order ('0': Left to Right, '1': the opposite) */
#define ST7789_MADCTL_MX 0x40
/* Page/Column Order ('0' = Normal Mode, '1' = Reverse Mode) */
#define ST7789_MADCTL_MV 0x20
/* Line Address Order ('0' = LCD Refresh Top to Bottom, '1' = the opposite) */
#define ST7789_MADCTL_ML 0x10
/* RGB/BGR Order ('0' = RGB, '1' = BGR) */
#define ST7789_MADCTL_RGB 0x00
#define ST7789_RDID1 0xDA
#define ST7789_RDID2 0xDB
#define ST7789_RDID3 0xDC
#define ST7789_RDID4 0xDD
/* Advanced options */
#define ST7789_COLOR_MODE_16bit 0x55 // RGB565 (16bit)
#define ST7789_COLOR_MODE_18bit 0x66 // RGB666 (18bit)
/* Basic operations */
#define ST7789_RST_Clr() HAL_GPIO_WritePin(ST7789_RST_PORT, ST7789_RST_PIN, GPIO_PIN_RESET)
#define ST7789_RST_Set() HAL_GPIO_WritePin(ST7789_RST_PORT, ST7789_RST_PIN, GPIO_PIN_SET)
#define ST7789_DC_Clr() HAL_GPIO_WritePin(ST7789_DC_PORT, ST7789_DC_PIN, GPIO_PIN_RESET)
#define ST7789_DC_Set() HAL_GPIO_WritePin(ST7789_DC_PORT, ST7789_DC_PIN, GPIO_PIN_SET)
#ifndef CFG_NO_CS
#define ST7789_Select() HAL_GPIO_WritePin(ST7789_CS_PORT, ST7789_CS_PIN, GPIO_PIN_RESET)
#define ST7789_UnSelect() HAL_GPIO_WritePin(ST7789_CS_PORT, ST7789_CS_PIN, GPIO_PIN_SET)
#else
#define ST7789_Select() asm("nop")
#define ST7789_UnSelect() asm("nop")
#endif
#define ABS(x) ((x) > 0 ? (x) : -(x))
/* Basic functions. */
void ST7789_Init(void);
void ST7789_SetRotation(uint8_t m);
void ST7789_Fill_Color(uint16_t color);
void ST7789_DrawPixel(uint16_t x, uint16_t y, uint16_t color);
void ST7789_Fill(uint16_t xSta, uint16_t ySta, uint16_t xEnd, uint16_t yEnd, uint16_t color);
void ST7789_DrawPixel_4px(uint16_t x, uint16_t y, uint16_t color);
/* Graphical functions. */
void ST7789_DrawLine(uint16_t x1, uint16_t y1, uint16_t x2, uint16_t y2, uint16_t color);
void ST7789_DrawRectangle(uint16_t x1, uint16_t y1, uint16_t x2, uint16_t y2, uint16_t color);
void ST7789_DrawCircle(uint16_t x0, uint16_t y0, uint8_t r, uint16_t color);
void ST7789_DrawImage(uint16_t x, uint16_t y, uint16_t w, uint16_t h, const uint16_t *data);
void ST7789_InvertColors(uint8_t invert);
/* Text functions. */
void ST7789_WriteChar(uint16_t x, uint16_t y, char ch, FontDef font, uint16_t color, uint16_t bgcolor);
void ST7789_WriteString(uint16_t x, uint16_t y, const char *str, FontDef font, uint16_t color, uint16_t bgcolor);
/* Extented Graphical functions. */
void ST7789_DrawFilledRectangle(uint16_t x, uint16_t y, uint16_t w, uint16_t h, uint16_t color);
void ST7789_DrawTriangle(uint16_t x1, uint16_t y1, uint16_t x2, uint16_t y2, uint16_t x3, uint16_t y3, uint16_t color);
void ST7789_DrawFilledTriangle(uint16_t x1, uint16_t y1, uint16_t x2, uint16_t y2, uint16_t x3, uint16_t y3, uint16_t color);
void ST7789_DrawFilledCircle(int16_t x0, int16_t y0, int16_t r, uint16_t color);
/* Command functions */
void ST7789_TearEffect(uint8_t tear);
/* Simple test function. */
void ST7789_Test(void);
#ifndef ST7789_ROTATION
#error You should at least choose a display rotation!
#endif
#endifOptions
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2022-10-31 07:08 AM
You waste space here with this, you twicr place header file , and no your test code...
But primary in header you have
/* choose whether use DMA or not */
#define USE_DMAand in main no init for DMA...
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2022-10-31 07:35 AM
Genius :D. It worked, thank you so much. Such a stupid error.
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2024-04-11 06:13 AM
Hello, can you share with me about your solutions? I'm currently having the same issue as you. Thanks in advance!
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