#include "ch438q.h"
#include "fsmc.h"

const uint8_t offsetadd[] = {
    0x00,
    0x10,
    0x20,
    0x30,
    0x08,
    0x18,
    0x28,
    0x38,
}; /* 串口号的偏移地址 */
const uint8_t Interruptnum[] = {
    0x01,
    0x02,
    0x04,
    0x08,
    0x10,
    0x20,
    0x40,
    0x80,
}; /* SSR寄存器中断号对应值 */

void ch438_write_reg(uint8_t addr, uint8_t data, uint8_t size)
{
    uint32_t *address = (uint32_t *)(0x60000000 + addr);
    HAL_SRAM_Write_8b(&hsram1, address, &data, size);
}

uint8_t ch438_read_reg(uint8_t addr, uint8_t size)
{
    uint8_t data = 0;
    uint32_t *address = (uint32_t *)(0x60000000 + addr);
    HAL_SRAM_Read_8b(&hsram1, address, &data, size);
    return data;
}

void ch438_test(void)
{
    uint8_t reg_data[16] = {0};
    reg_data[0] = 0xAA;
    ch438_write_reg(offsetadd[0] | REG_SCR_ADDR, reg_data[0], 1);

    reg_data[1] = ch438_read_reg(offsetadd[0] | REG_SCR_ADDR, 1);

    reg_data[2] = ch438_read_reg(offsetadd[0] | REG_IER_ADDR, 1);
    reg_data[3] = ch438_read_reg(offsetadd[0] | REG_IIR_ADDR, 1);
    reg_data[4] = ch438_read_reg(offsetadd[0] | REG_LSR_ADDR, 1);
}