Use of LCD screen of kendryte k210 on FreeRTOS

K210 Upper lcd The screen of is 8 Bit spi Parallel interface , The model of the screen development board used is JLT32009A, A treasure should be available

It should be noted that if you buy this kind of screen in a treasure , Tend to have 8 Bit and 16 The difference between bits , Businesses will tell you that these are two different screens , But by looking at the specification book of the screen, we will find , As long as the jump resistance can be achieved 8 Bit and 16 Bit switching , There are many resistors on the screen cable , find R8 and R16,R8 Express 8 Bit data signal ,R16 Express 16 Bit data signal .

Then look at the schematic , as follows ：

Corresponding project_cfg.h

#ifndef _PROJECT_CFG_H_
#define _PROJECT_CFG_H_
#include <pin_cfg.h>

#define SPI_CHANNEL 0
#define SPI_SLAVE_SELECT 3
#define __SPI_SYSCTL(x, y) SYSCTL_##x##_SPI##y
#define _SPI_SYSCTL(x, y) __SPI_SYSCTL(x, y)
#define SPI_SYSCTL(x) _SPI_SYSCTL(x, SPI_CHANNEL)
#define __SPI_SS(x, y) FUNC_SPI##x##_SS##y
#define _SPI_SS(x, y) __SPI_SS(x, y)
#define SPI_SS _SPI_SS(SPI_C