Description
Hi all!
STM32F401 SPI DMA bad image picture
What MCU/Processor/Board and compiler are you using?
STM32F401 Keil
What LVGL version are you using?
Configuration file for v7.10.1
What do you want to achieve?
I want to configure the disp_flush function for SPI DMA
What have you tried so far?
Without using DMA everything just works very slowly.
Code to reproduce
Add a code snippet which can run in the simulator. It should contain only the relevant code that compiles without errors when separated from your main code base.
The code block(s) should be formatted like:
static void disp_flush(lv_disp_drv_t * disp_drv, const lv_area_t * area, lv_color_t * color_p)
{
ILI9341_Send_Data_DMA(area->x1, area->y1, area->x2, area->y2, (uint8_t *)color_p);
}
void ILI9341_Send_Data_DMA(uint16_t x_start, uint16_t y_start, uint16_t x_end, uint16_t y_end, uint8_t *p)
{
ILI9341_Address_Set(x_start, y_start, x_end, y_end);
ILI9341_Select();
HAL_SPI_Transmit_DMA(&ILI9341_SPI_PORT, (uint8_t *)p, (x_end - x_start + 1) * (y_end - y_start + 1) * 2);
ILI9341_SPI_WAIT_DMA();
}
void HAL_SPI_TxCpltCallback(SPI_HandleTypeDef *hspi)
{
ILI9341_Deselect();
HAL_SPI_DMAStop(&hspi1);
lv_disp_flush_ready(&disp_drv);
}
Screenshot and/or video
If possible, add screenshots and/or videos about the current state.
