Ok I’ll try to be much more specific. I’m trying to put a red background on this screen that uses the ST7789 driver but when I enter the code it just doesn’t do anything. I suspect they are the pins since the CS pin is located on D7 but the driver code puts it on D0. I don’t know if at the hardware level the D0 pin is also CS. The screen is functional because if I connect it to an Arduino it works but when using it on this xiaorp2040 board it doesn’t work. I attach the code, maybe I have an error and I don’t realize it.
RED COLOR CODE IN THE BACKGROUND
#include <st7789v2.h>
#include "SPI.h"
st7789v2 lcd;
void setup() {
Serial.begin(115200);
Serial.print("MOSI: ");
Serial.println(MOSI);
Serial.print("MISO: ");
Serial.println(MISO);
Serial.print("SCK: ");
Serial.println(SCK);
Serial.print("SS: ");
Serial.println(SS);
// put your setup code here, to run once:
lcd.Init();
lcd.SetBacklight(100);
lcd.Clear(RED);
}
void loop() {
// put your main code here, to run repeatedly:
}
STVST7789 CODE
#ifndef __ST7789V2_H__
#define __ST7789V2_H__
#include <Arduino.h>
#include "stdio.h"
#include "fonts.h"
#include <SPI.h>
#if defined(ARDUINO_SEEED_XIAO_NRF52840_SENSE) || defined(ARDUINO_SEEED_XIAO_NRF52840)
#include <avr/dtostrf.h>
#endif
#define RST_PIN D0
#define DC_PIN D3
#define BL_PIN D6
#define CS_PIN D1
#define LCD_WIDTH 240 //LCD width
#define LCD_HEIGHT 280 //LCD height
#define DEV_DEBUG 1
#if DEV_DEBUG
#define Debug(__info,...) printf("Debug : " __info,##__VA_ARGS__)
#else
#define DEBUG(__info,...)
#endif
/**
* The size of the point
**/
typedef enum {
DOT_PIXEL_1X1 = 1, // 1 x 1
DOT_PIXEL_2X2 , // 2 X 2
DOT_PIXEL_3X3 , // 3 X 3
DOT_PIXEL_4X4 , // 4 X 4
DOT_PIXEL_5X5 , // 5 X 5
DOT_PIXEL_6X6 , // 6 X 6
DOT_PIXEL_7X7 , // 7 X 7
DOT_PIXEL_8X8 , // 8 X 8
} DOT_PIXEL;
#define DOT_PIXEL_DFT DOT_PIXEL_1X1 //Default dot pilex
/**
* Point size fill style
**/
typedef enum {
DOT_FILL_AROUND = 1, // dot pixel 1 x 1
DOT_FILL_RIGHTUP , // dot pixel 2 X 2
} DOT_STYLE;
#define DOT_STYLE_DFT DOT_FILL_AROUND //Default dot pilex
/**
* Line style, solid or dashed
**/
typedef enum {
LINE_STYLE_SOLID = 0,
LINE_STYLE_DOTTED,
} LINE_STYLE;
/**
* Whether the graphic is filled
**/
typedef enum {
DRAW_FILL_EMPTY = 0,
DRAW_FILL_FULL,
} DRAW_FILL;
/**
* image color
**/
#define WHITE 0xFFFF
#define BLACK 0x0000
#define BLUE 0x001F
#define BRED 0XF81F
#define GRED 0XFFE0
#define GBLUE 0X07FF
#define RED 0xF800
#define MAGENTA 0xF81F
#define GREEN 0x07E0
#define CYAN 0x7FFF
#define YELLOW 0xFFE0
#define BROWN 0XBC40
#define BRRED 0XFC07
#define GRAY 0X8430
#define DARKBLUE 0X01CF
#define LIGHTBLUE 0X7D7C
#define GRAYBLUE 0X5458
#define LIGHTGREEN 0X841F
#define LGRAY 0XC618
#define LGRAYBLUE 0XA651
#define LBBLUE 0X2B12
/**
* Display rotate
**/
#define ROTATE_0 0
#define ROTATE_90 90
#define ROTATE_180 180
#define ROTATE_270 270
#define MIRROR_NONE 0x00
#define MIRROR_HORIZONTAL 0x01
#define MIRROR_VERTICAL 0x02
#define MIRROR_ORIGIN 0x03
class st7789v2{
protected:
uint8_t spi_cs, spi_dc, spi_rst, spi_bl;
uint16_t ROTA = ROTATE_0, MIRR = MIRROR_NONE;
private:
void WriteReg(uint8_t data);
void WriteData_Byte(uint8_t data);
void WriteData_Word(uint16_t data);
void DrawChar(int16_t Xpoint, int16_t Ypoint, const char Acsii_Char, sFONT* Font, int16_t Color_Background, int16_t Color_Foreground);
public:
// bool horizontal = false;
uint8_t mirror = MIRROR_NONE;
void Init(uint8_t cs = CS_PIN, uint8_t dc = DC_PIN, uint8_t rst = RST_PIN, uint8_t bl = BL_PIN);
void SetBacklight(uint16_t Value);
void Reset(void);
void SetCursor(uint16_t Xstart, uint16_t Ystart, uint16_t Xend, uint16_t Yend);
void Clear(uint16_t Color);
void ClearWindow(uint16_t Xstart, uint16_t Ystart, uint16_t Xend, uint16_t Yend, uint16_t color);
void SetWindowColor(uint16_t Xstart, uint16_t Ystart, uint16_t Xend, uint16_t Yend, uint16_t Color);
void SetUWORD(uint16_t x, uint16_t y, uint16_t Color);
void SetRotate(uint16_t Rotate);
void SetMirroring(uint8_t mirror);
void SetPixel(uint16_t Xpoint, uint16_t Ypoint, uint16_t Color);
void DrawPoint( uint16_t Xpoint, uint16_t Ypoint, uint16_t Color, DOT_PIXEL Dot_Pixel, DOT_STYLE Dot_FillWay);
void DrawLine(uint16_t Xstart, uint16_t Ystart, uint16_t Xend, uint16_t Yend, uint16_t Color, DOT_PIXEL Line_width, LINE_STYLE Line_Style);
void DrawRectangle(uint16_t Xstart, uint16_t Ystart, uint16_t Xend, uint16_t Yend, uint16_t Color, DOT_PIXEL Line_width, DRAW_FILL Filled);
void DrawCircle(uint16_t X_Center, uint16_t Y_Center, uint16_t Radius, uint16_t Color, DOT_PIXEL Line_width, DRAW_FILL Draw_Fill);
void DrawString_EN(int16_t Xstart, int16_t Ystart, const char * pString, sFONT* Font, int16_t Color_Background, int16_t Color_Foreground);
void DrawNum(int16_t Xpoint, int16_t Ypoint, int32_t Nummber, sFONT* Font, int16_t Color_Background, int16_t Color_Foreground);
void DrawFloatNum(int16_t Xpoint, int16_t Ypoint, double Nummber, int8_t Decimal_Point, sFONT* Font, int16_t Color_Background, int16_t Color_Foreground);
void DrawImage(const unsigned char *image, int16_t xStart, int16_t yStart, int16_t W_Image, int16_t H_Image);
};
#endif
I would appreciate your help or maybe you have code that works because it doesn’t seem to work.
Screen image
Connection diagram i use. This diagram is for an NRF52840 board, maybe that’s where my problems come from.
