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This commit is contained in:
Stanislav N Mikhailov
2024-12-27 14:39:43 +03:00
commit e6fc56a203
7 changed files with 278 additions and 0 deletions
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.gitignore
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build/*
.vscode/*
CMakeLists.txt
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cmake_minimum_required(VERSION 3.18.4)
include($ENV{PICO_SDK_PATH}/external/pico_sdk_import.cmake)
project(circle C CXX ASM)
set(CMAKE_C_STANDARD 11)
set(CMAKE_CXX_STANDARD 17)
pico_sdk_init()
add_executable(${PROJECT_NAME} main.c Thread.c)
target_link_libraries(${PROJECT_NAME}
pico_stdlib
hardware_spi
hardware_dma
pico_multicore
)
pico_add_extra_outputs(${PROJECT_NAME})
Thread.c
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#include "Thread.h"
#include "pico/stdlib.h"
#include "hardware/spi.h"
#include "pico/multicore.h"
uint16_t frame_buffer[WIDTH * HEIGHT]; // Буфер для экрана
//uint16_t frame_buffer1[WIDTH * HEIGHT]; // Буфер для экрана1
void coreEntry(){
st7789_init(); // Initialize SPI and GPIO
gpio_put(PIN_BL, 1); // Подсветка
multicore_fifo_push_blocking(0); //Экран 0 свободен
//multicore_fifo_push_blocking(1); //Экран 1 свободен
while (true)
{
uint32_t data = multicore_fifo_pop_blocking();
if (data==0)
{
st7789_send_framebuffer(frame_buffer); //Рисую экран 0
multicore_fifo_push_blocking(0); //Экран 0 свободен
}
/*else if (data==1)
{
st7789_send_framebuffer(frame_buffer1); // Рисую первый экран
multicore_fifo_push_blocking(1); //Экран 1 свободен
}*/
else
{
multicore_reset_core1(); // Сброс и остановка ядра 1
}
}
}
void st7789_init() {
// Initialize SPI
spi_init(SPI_PORT, 1000 * 100 * 625); // 62.5MHz
gpio_set_function(PIN_MOSI, GPIO_FUNC_SPI);
gpio_set_function(PIN_SCK, GPIO_FUNC_SPI);
// Initialize control pins
gpio_init(PIN_CS);
gpio_init(PIN_DC);
gpio_init(PIN_RST);
gpio_init(PIN_BL);
gpio_set_dir(PIN_CS, GPIO_OUT);
gpio_set_dir(PIN_DC, GPIO_OUT);
gpio_set_dir(PIN_RST, GPIO_OUT);
gpio_set_dir(PIN_BL, GPIO_OUT);
// Reset the display
gpio_put(PIN_RST, 0);
sleep_ms(50);
gpio_put(PIN_RST, 1);
sleep_ms(50);
// Initialize ST7789 commands
st7789_send_command(0x01); // Software reset
sleep_ms(150);
st7789_send_command(0x11); // Exit sleep mode
sleep_ms(150);
st7789_send_command(0x36); // Memory data access control
st7789_send_data(0x20); // RGB
//st7789_send_data(0b00101000); // BGR
st7789_send_command(0x3A); // Interface pixel format
st7789_send_data(0b01010101); // 16-bit/pixel
st7789_send_command(0x21); //INVON (21h): Display Inversion On
st7789_send_command(0x29); // Display ON
}
void st7789_send_command(uint8_t cmd) {
gpio_put(PIN_DC, 0);
gpio_put(PIN_CS, 0);
spi_write_blocking(SPI_PORT, &cmd, 1);
gpio_put(PIN_CS, 1);
}
void st7789_send_data(uint8_t data) {
gpio_put(PIN_DC, 1);
gpio_put(PIN_CS, 0);
spi_write_blocking(SPI_PORT, &data, 1);
gpio_put(PIN_CS, 1);
}
void st7789_send_framebuffer(uint16_t *buffer) {
// Установить область для записи на весь экран
st7789_send_command(0x2A); // Column address set
st7789_send_data(0x00);
st7789_send_data(0x00); // X-start = 0
st7789_send_data((WIDTH - 1) >> 8);
st7789_send_data((WIDTH - 1) & 0xFF); // X-end = WIDTH-1
st7789_send_command(0x2B); // Row address set
st7789_send_data(0x00);
st7789_send_data(0x00); // Y-start = 0
st7789_send_data((HEIGHT - 1) >> 8);
st7789_send_data((HEIGHT - 1) & 0xFF); // Y-end = HEIGHT-1
// Команда записи данных в память дисплея
st7789_send_command(0x2C); // Memory write
// Передача буфера на дисплей
gpio_put(PIN_DC, 1); // Режим данных
gpio_put(PIN_CS, 0); // Выбор устройства
// Отправка буфера по SPI
spi_write_blocking(SPI_PORT, (uint8_t *)buffer, WIDTH * HEIGHT * 2);
gpio_put(PIN_CS, 1); // Завершить передачу
}
Thread.h
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#include <stdio.h>
#define SPI_PORT spi0
#define PIN_MISO -1
#define PIN_MOSI 19
#define PIN_SCK 18
#define PIN_CS 17
#define PIN_DC 22
#define PIN_RST 13
#define PIN_BL 12
#define WIDTH 320
#define HEIGHT 240
#define COLOR_BLACK 0x0000
#define COLOR_WHITE 0xFFFF
extern uint16_t frame_buffer[WIDTH * HEIGHT];
extern uint16_t frame_buffer1[WIDTH * HEIGHT];
void st7789_send_command(uint8_t cmd);
void st7789_send_data(uint8_t data);
void st7789_send_framebuffer(uint16_t *buffer);
void coreEntry();
void st7789_init();
main.c
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#include "main.h"
#include "Thread.h"
#include "pico/multicore.h"
#include "pico/stdlib.h"
int main() {
uint16_t red = 0;
uint16_t green = 0;
uint16_t blue = 0;
uint16_t summcolor=0;
uint32_t data;
stdio_init_all();
multicore_launch_core1(coreEntry); //Запускаю в ядре 1 процесс вывода на экран
while (red<32)
{
//uint8_t red_value = (pixel & red_mask) >> 11;
//uint8_t green_value = (pixel & green_mask) >> 5;
//uint8_t blue_value = (pixel & blue_mask);
data = multicore_fifo_pop_blocking();
fillBufer(frame_buffer,reverse(summcolor & 0b0000011111111111 | red << 11));//;
multicore_fifo_push_blocking(0); //Экран 0 нарисован
/*data = multicore_fifo_pop_blocking();
fillBufer(frame_buffer1,0x0000);
multicore_fifo_push_blocking(1); //Экран 0 нарисован*/
red+=1;
sleep_ms(20);
}
while (green<64)
{
data = multicore_fifo_pop_blocking();
fillBufer(frame_buffer,reverse(summcolor & 0b1111100000011111 | green << 5)); //
multicore_fifo_push_blocking(0); //Экран 0 нарисован
green+=1;
sleep_ms(20);
}
while (blue<32)
{
data = multicore_fifo_pop_blocking();
fillBufer(frame_buffer,reverse(summcolor & 0b1111111111100000 | blue)); //
multicore_fifo_push_blocking(0); //Экран 0 нарисован
blue+=1;
sleep_ms(20);
}
while (1) {
tight_loop_contents();
}
}
void fillBufer (uint16_t* buffer,uint16_t color){
for (uint16_t y = 0; y < HEIGHT; y++)
{
for (uint16_t x = 0; x < WIDTH; x++)
{
buffer[y*WIDTH+x]=color;
}
}
}
unsigned short reverse(unsigned short x)
{
x = (x & 0xFF) << 8 | (x & 0xFF00) >> 8;
return x;
}
main.h
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#include <stdio.h>
void fillBufer (uint16_t* buffer,uint16_t color);
unsigned short reverse(unsigned short x);
Диаграмма без названия.drawio
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