CH32V307 SM - SPI, SPI DMA 테스트

CH32V307은 3개의 SPI가 있고 최대 36Mhz 로 구동된다.

 

 

 

CH32V307의 SPI 기본 동작 테스트 코드

void SPI_FullDuplex_Init(void)
{
	GPIO_InitTypeDef GPIO_InitStructure={0};
	SPI_InitTypeDef SPI_InitStructure={0};

	RCC_APB2PeriphClockCmd( RCC_APB2Periph_GPIOA | RCC_APB2Periph_SPI1, ENABLE );

	GPIO_InitStructure.GPIO_Pin = GPIO_Pin_5;
	GPIO_InitStructure.GPIO_Mode = GPIO_Mode_AF_PP;
	GPIO_InitStructure.GPIO_Speed = GPIO_Speed_50MHz;
	GPIO_Init( GPIOA, &GPIO_InitStructure );

	GPIO_InitStructure.GPIO_Pin = GPIO_Pin_6;
	GPIO_InitStructure.GPIO_Mode = GPIO_Mode_IN_FLOATING;
	GPIO_Init( GPIOA, &GPIO_InitStructure );

	GPIO_InitStructure.GPIO_Pin = GPIO_Pin_7;
	GPIO_InitStructure.GPIO_Mode = GPIO_Mode_AF_PP;
	GPIO_InitStructure.GPIO_Speed = GPIO_Speed_50MHz;
	GPIO_Init( GPIOA, &GPIO_InitStructure );

	SPI_InitStructure.SPI_Direction = SPI_Direction_2Lines_FullDuplex;

	SPI_InitStructure.SPI_Mode = SPI_Mode_Master;

	SPI_InitStructure.SPI_DataSize = SPI_DataSize_16b;
	SPI_InitStructure.SPI_CPOL = SPI_CPOL_Low;
	SPI_InitStructure.SPI_CPHA = SPI_CPHA_1Edge;
	SPI_InitStructure.SPI_NSS = SPI_NSS_Soft;
	SPI_InitStructure.SPI_BaudRatePrescaler = SPI_BaudRatePrescaler_64;
	SPI_InitStructure.SPI_FirstBit = SPI_FirstBit_LSB;
	SPI_InitStructure.SPI_CRCPolynomial = 7;
	SPI_Init( SPI1, &SPI_InitStructure );

	SPI_Cmd( SPI1, ENABLE );
}

 

 

u16 TxData[2] = {0x01, 0x02};

int main(void)
{
	u8 i;

	NVIC_PriorityGroupConfig(NVIC_PriorityGroup_4);
	SystemCoreClockUpdate();
	Delay_Init();
	USART_Printf_Init(115200);	
	printf("SystemClk:%d\r\n",SystemCoreClock);
	printf( "ChipID:%08x\r\n", DBGMCU_GetCHIPID() );


	SPI_FullDuplex_Init();


	while(1)
	{
         if(SPI_I2S_GetFlagStatus(SPI1, SPI_I2S_FLAG_TXE) != RESET)
         {
           SPI_I2S_SendData(SPI1, TxData[0]);
         }
         
         if(SPI_I2S_GetFlagStatus(SPI1, SPI_I2S_FLAG_TXE) != RESET)
         {
           SPI_I2S_SendData(SPI1, TxData[1]);
         }         
    }
}

 

 

 

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CH32V307 SPI DMA 테스트

void DMA_Tx_Init( DMA_Channel_TypeDef* DMA_CHx, u32 ppadr, u32 memadr, u16 bufsize)
{
	DMA_InitTypeDef DMA_InitStructure={0};

	RCC_AHBPeriphClockCmd( RCC_AHBPeriph_DMA1, ENABLE );

	DMA_DeInit(DMA_CHx);

	DMA_InitStructure.DMA_PeripheralBaseAddr = ppadr;
	DMA_InitStructure.DMA_MemoryBaseAddr = memadr;
	DMA_InitStructure.DMA_DIR = DMA_DIR_PeripheralDST;
	DMA_InitStructure.DMA_BufferSize = bufsize;
	DMA_InitStructure.DMA_PeripheralInc = DMA_PeripheralInc_Disable;
	DMA_InitStructure.DMA_MemoryInc = DMA_MemoryInc_Enable;
	DMA_InitStructure.DMA_PeripheralDataSize = DMA_PeripheralDataSize_HalfWord;
	DMA_InitStructure.DMA_MemoryDataSize = DMA_MemoryDataSize_HalfWord;
	DMA_InitStructure.DMA_Mode = DMA_Mode_Normal;
	DMA_InitStructure.DMA_Priority = DMA_Priority_VeryHigh;
	DMA_InitStructure.DMA_M2M = DMA_M2M_Disable;
	DMA_Init( DMA_CHx, &DMA_InitStructure );
}

 

 

 

int main(void)
{
	u8 i=0,j=0;

	SystemCoreClockUpdate();
	Delay_Init();
	USART_Printf_Init(115200);	
	printf("SystemClk:%d\r\n",SystemCoreClock);
	printf( "ChipID:%08x\r\n", DBGMCU_GetCHIPID() );

	SPI_FullDuplex_Init();

	while(1)
	{
		while( (!DMA_GetFlagStatus(DMA1_FLAG_TC2)) &&  (!DMA_GetFlagStatus(DMA1_FLAG_TC3)) );

		while(1);
	}
}