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8080模板工程
如果你希望将本工程移植到自己的电路板上，那么你可能会对本文章感兴趣。
本文将演示如何使用pico_dm_8080_template工程，适配一个全新的硬件组合，以ILI9488 + FT6236U为例。
部署工程
显示屏
1.新建一个名为tft_ili9488.c的文件
2.在文件中新建一个tft_display
重写需要的tftops函数
#include "tft.h"
#include "debug.h"
#if LCD_DRV_USE_ILI9488
...
static struct tft_display ili9488 = {
.xres = TFT_X_RES,
.yres = TFT_Y_RES,
.bpp = 16,
.backlight = 100,
.tftops = {
#if LCD_PIN_DB_COUNT == 8
.write_reg = tft_write_reg8,
.video_sync = tft_video_sync,
#else
.write_reg = tft_write_reg16,
#endif
.init_display = tft_ili9488_init_display,
},
};
int tft_driver_init(void)
{
tft_probe(&ili9488);
return 0;
}
#endif3. 在src/cmake 目录下新建一个ili9488.cmake 文件
在此处定义需要的变量，这些变量会覆盖src/CMakeLists.txt中的默认属性
set(LCD_PIN_DB_BASE 0) # 8080 LCD data bus base pin
set(LCD_PIN_DB_COUNT 16) # 8080 LCD data bus pin count
set(LCD_PIN_CS 29) # 8080 LCD chip select pin
set(LCD_PIN_WR 19) # 8080 LCD write pin
set(LCD_PIN_RS 20) # 8080 LCD register select pin
set(LCD_PIN_RD 18) # 8080 LCD read pin
set(LCD_PIN_RST 22) # 8080 LCD reset pin
set(LCD_PIN_BL 28) # 8080 LCD backlight pin
set(LCD_HOR_RES 480)
set(LCD_VER_RES 320)
set(DISP_OVER_PIO 1) # 1: PIO, 0: GPIO
set(PIO_USE_DMA 1) # 1: use DMA, 0: not use DMA
set(I80_BUS_WR_CLK_KHZ 50000)4. 在src/CMakeLists.txth中添加新的显示屏驱动
set(LCD_DRV_USE_ILI9488 0)
...
if(LCD_DRV_USE_ILI9488)
include(${CMAKE_CURRENT_LIST_DIR}/cmake/ili9488.cmake)
endif()
...
file(GLOB_RECURSE COMMON_SOURCES
...
tft_ili9488.c
...
)
...
target_compile_definitions(${PROJECT_NAME} PUBLIC LCD_DRV_USE_ILI9488=${LCD_DRV_USE_ILI9488})触摸屏
1. 新建一个名为ft6236.c 的文件 实现一个indev_spec结构体对象
static struct indev_spec ft6236 = {
.name = "ft6236",
.type = INDEV_TYPE_POINTER,
.i2c = {
.addr = FT6236_ADDR,
.master = i2c1,
.speed = FT6236_DEF_SPEED,
.pin_scl = FT6236_PIN_SCL,
.pin_sda = FT6236_PIN_SDA,
},
.x_res = TOUCH_X_RES,
.y_res = TOUCH_Y_RES,
// .pin_irq = FT6236_PIN_IRQ,
.pin_rst = FT6236_PIN_RST,
.ops = {
.write_reg = ft6236_write_reg,
.read_reg = ft6236_read_reg,
.init = ft6236_hw_init,
.is_pressed = ft6236_is_pressed,
.read_x = ft6236_read_x,
.read_y = ft6236_read_y,
}
};