137 SPI

#include "bat32g137.h"
#include "sci.h"
#include "stdio.h"

// bref: spi發送
// para:
// note:
static void spi_send(uint8_t data)
{
	SCI0->SDR02 = data;
	// 等待傳輸結束
	while(SCI0->SSR02 & _0040_SCI_UNDER_EXECUTE);
}

int main(void)
{
	spi_mode_t  mode = SPI_MODE_0;
	// 開啓外設時鐘
	CGC->PER0 |= CGC_PER0_SCI0EN_Msk;
	// 停止通道
    SCI0->ST0 |= _0004_SCI_CH2_STOP_TRG_ON;
	// 分頻器
    SCI0->SPS0 &= ~SCI0_SPS0_PRS01_Msk;
    SCI0->SPS0 |= (0 << SCI0_SPS0_PRS01_Pos);
	// 設置爲主模式
    SCI0->SIR02 = _0004_SCI_SIRMN_FECTMN | _0002_SCI_SIRMN_PECTMN | _0001_SCI_SIRMN_OVCTMN;
	// 設置爲SPI模式 傳輸結束產生中斷
    SCI0->SMR02 = _0020_SMRMN_DEFAULT_VALUE | _8000_SCI_CLOCK_SELECT_CK01 | _0000_SCI_CLOCK_MODE_CKS |
                  _0000_SCI_TRIGGER_SOFTWARE | _0000_SCI_MODE_SPI | _0001_SCI_BUFFER_EMPTY;
	// 設置SPI 極性
    SCI0->SCR02 = _0004_SCRMN_DEFAULT_VALUE | _8000_SCI_TRANSMISSION | mode | _0000_SCI_INTSRE_MASK |
                  _0000_SCI_PARITY_NONE | _0000_SCI_MSB | _0000_SCI_STOP_NONE | _0003_SCI_LENGTH_8;

	//(2+1)*2 = 6 
	// 48/6 = 8M
    SCI0->SDR02 = 23 << 9; 

    /* Set output enable */
    if ((mode == SPI_MODE_0) || (mode == SPI_MODE_1))
    {
        SCI0->SO0 &= ~_0400_SCI_CH2_CLOCK_OUTPUT_1;
    }
    if ((mode == SPI_MODE_2) || (mode == SPI_MODE_3))
    {
        SCI0->SO0 |= _0400_SCI_CH2_CLOCK_OUTPUT_1;
    }
    SCI0->SOE0 |= _0004_SCI_CH2_OUTPUT_ENABLE;
//    /* Set P02/SDO10 pin */
    PORT->PMC0 &= ~(1<<2);
    PORT->P0 |= 1<<2;
    PORT->PM0 &= ~(1<<2);
    /* Set P03/SDI10 pin */
    PORT->PMC0 &= 0xF7U;
    PORT->PM0 |= 0x08U;
    /* Set P04/SCK10 pin */
    PORT->PMC0 &= 0xEFU;
    PORT->P0 |= 0x10;
    PORT->PM0 &= ~(1<<4);
	// 
	PORT->PMC0 &= ~(1<<5);
    PORT->PM0 &= ~(1<<5);
	
	PORT->P0 &=~(1<<5); 
	
	// 開啓對應的中斷
	 /* clear INTSPI10 interrupt flag */
    INTC_ClearPendingIRQ(SPI10_IRQn);
    NVIC_ClearPendingIRQ(SPI10_IRQn);
    /* enable INTSPI10 interrupt */
    INTC_EnableIRQ(SPI10_IRQn);
    NVIC_EnableIRQ(SPI10_IRQn);
	
	// 使能通道
	SCI0->SS0 |= _0004_SCI_CH2_START_TRG_ON;
	
	
	while(1)
	{
		spi_send(0xA5);
	}
}

void IRQ13_Handler(void) __attribute__((alias("spi10_interrupt")));
/***********************************************************************************************************************
* Function Name: spi10_interrupt
* Description  : None
* Arguments    : None
* Return Value : None
***********************************************************************************************************************/
void spi10_interrupt(void)
{
    volatile uint8_t err_type;
    volatile uint8_t sio_dummy;

    INTC_ClearPendingIRQ(SPI10_IRQn);
    err_type = (uint8_t)(SCI0->SSR02 & _0001_SCI_OVERRUN_ERROR);
    SCI0->SIR02 = (uint16_t)err_type;

    if (1U == err_type)
    {
        //spi10_callback_error(err_type);    /* overrun error occurs */
		
    }
    else
    {
		if(PORT->P0 & (1<<5))
		{
			PORT->P0 &=~(1<<5);
		}
		else
		{
			PORT->P0 |=(1<<5);
		}
        
    }
}

注意設置SPI我發送模式，