/*---------------------------------------------------------------------------------------------------------*/
void PDMA_UART(int32_t i32option)
{
/* Source data initiation */
BuildSrcPattern((uint32_t)SrcArray, UART_TEST_LENGTH);
ClearBuf((uint32_t)DestArray, UART_TEST_LENGTH, 0xFF);
/* Reset PDMA module */
SYS->IPRSTC1 |= SYS_IPRSTC1_PDMA_RST_Msk;
SYS->IPRSTC1 &= ~SYS_IPRSTC1_PDMA_RST_Msk;
if(i32option =='1')
{
printf(" [Using TWO PDMA channel].\n");
printf(" This sample code will use PDMA to do UART1 loopback test 10 times.\n");
printf(" Please connect UART1_RXD(PB.4) <--> UART1_TXD(PB.5) before testing.\n");
printf(" After connecting PB.4 <--> PB.5, press any key to start transfer.\n");
g_u32TwoChannelPdmaTest = 1;
getchar();
}
else
{
UART_TEST_LENGTH = 2; /* Test Length */
printf(" [Using ONE PDMA channel].\n");
printf(" This sample code will use PDMA to do UART1 Rx test 10 times.\n");
printf(" Please connect UART1_RXD(PB.4) <--> UART1_TXD(PB.5) before testing.\n");
printf(" After connecting PB.4 <--> PB.5, press any key to start transfer.\n");
g_u32TwoChannelPdmaTest = 0;
getchar();
printf(" Please input %d bytes to trigger PDMA one time.(Ex: Press 'a''b')\n", UART_TEST_LENGTH);
}
if(g_u32TwoChannelPdmaTest==1)
{
/* Enable PDMA channel 1 clock */
PDMA_GCR->GCRCSR |= PDMA_GCRCSR_CLK1_EN_Msk;
/* UART Tx PDMA configuration */
PDMA_UART_TxTest();
}
/* Enable PDMA channel 0 clock */
PDMA_GCR->GCRCSR |= PDMA_GCRCSR_CLK0_EN_Msk;
/* UART Rx PDMA configuration */
PDMA_UART_RxTest();
/* Enable PDMA Channel 0 Block Transfer Done Interrupt */
PDMA0->IER |= PDMA_IER_BLKD_IE_Msk;
IntCnt = 0;
IsTestOver = FALSE;
NVIC_EnableIRQ(PDMA_IRQn);
/* Enable UART0 RDA interrupt */
if(g_u32TwoChannelPdmaTest==0)
{
UART_ENABLE_INT(UART0, UART_IER_RDA_IEN_Msk);
NVIC_EnableIRQ(UART02_IRQn);
}
/* Trigger PDMA */
PDMA0->CSR |= (PDMA_CSR_TRIG_EN_Msk | PDMA_CSR_PDMACEN_Msk);
if(g_u32TwoChannelPdmaTest==1)
PDMA1->CSR |= (PDMA_CSR_TRIG_EN_Msk | PDMA_CSR_PDMACEN_Msk);
/* Enable UART Tx and Rx PDMA function */
if(g_u32TwoChannelPdmaTest==1)
UART1->IER |= UART_IER_DMA_TX_EN_Msk;
else
UART1->IER &= ~UART_IER_DMA_TX_EN_Msk;
UART1->IER |= UART_IER_DMA_RX_EN_Msk;
/* Wait for PDMA operation finish */
while(IsTestOver == FALSE);
/* Disable UART Tx and Rx PDMA function */
UART1->IER &= ~(UART_IER_DMA_TX_EN_Msk|UART_IER_DMA_RX_EN_Msk);
/* Disable PDMA channel */
PDMA_GCR->GCRCSR = 0;
/* Disable PDMA Interrupt */
PDMA0->IER &= ~PDMA_IER_BLKD_IE_Msk;
NVIC_DisableIRQ(PDMA_IRQn);
/* Disable UART0 RDA interrupt */
UART_DISABLE_INT(UART0, UART_IER_RDA_IEN_Msk);
NVIC_DisableIRQ(UART02_IRQn);
}
/*---------------------------------------------------------------------------------------------------------*/
void PDMA_UART(int32_t i32option)
{
uint32_t UARTPort;
volatile uint32_t i;
BuildSrcPattern((uint32_t)SrcArray,UART_TEST_LENGTH);
UARTPort = UART1_BASE;
ClearBuf((uint32_t)DestArray, UART_TEST_LENGTH,0xFF);
SYSCLK->AHBCLK|= SYSCLK_AHBCLK_PDMA_EN_Msk;
if(i32option =='1')
{
printf(" [Using TWO PDMA channel]. \n");
printf(" This sample code will use PDMA to do UART1 loopback 10 times test. \n");
printf(" Please connect GPB4 <--> GPB5 before testing.\n");
printf(" After connecting GPB4 <--> GPB5, press any key to start transfer.\n");
g_u32TwoChannelPdmaTest = 1;
uart_getchar();
}
else
{
UART_TEST_LENGTH = 2; /* Test Length */
printf(" [Using ONE PDMA channel]. \n");
printf(" This sample code will use PDMA to do UART1 Rx test ten times. \n");
printf(" Please connect GPB4 <--> GPB5 before testing.\n");
printf(" After connecting GPB4 <--> GPB5, press any key to start transfer.\n");
g_u32TwoChannelPdmaTest = 0;
uart_getchar();
printf(" Please input %d bytes to trigger PDMA one time.(Ex: Press 'a''b')\n",UART_TEST_LENGTH);
}
if(g_u32TwoChannelPdmaTest==1)
{
/* PDMA Setting */
_PDMAGCR_PDSSR1_UART1_TXSEL(1);
/* CH1 TX Setting */
/* Enable PDMA channel 1 clock */
PDMA_GCR->GCRCSR|= PDMA_GCRCSR_CLK1_EN_Msk;
/* Enable PDMA channel 1, Set Source/destination transfer direction,
Set PDMA mode, Set peripheral transfer width */
PDMA1->CSR = PDMA_CSR_PDMACEN_Msk | PDMA_CSR_SAD_SEL_INCREASE | PDMA_CSR_DAD_SEL_FIXED |
PDMA_CSR_APB_TWS_8BITS | PDMA_CSR_MODE_SEL_M2P;
PDMA1->SAR = (uint32_t)SrcArray; /* Set Source Address */
PDMA1->DAR = UARTPort; /* Set Destination Address */
PDMA1->BCR = UART_TEST_LENGTH;
}
/* PDMA Setting */
_PDMAGCR_PDSSR1_UART1_RXSEL(0);
/* CH0 RX Setting */
/* Enable PDMA channel 0 clock */
PDMA_GCR->GCRCSR|= PDMA_GCRCSR_CLK0_EN_Msk;
/* Enable PDMA channel 0, Set Source/destination transfer direction,
Set PDMA mode, Set peripheral transfer width */
PDMA0->CSR = PDMA_CSR_PDMACEN_Msk | PDMA_CSR_SAD_SEL_FIXED | PDMA_CSR_DAD_SEL_INCREASE |
PDMA_CSR_APB_TWS_8BITS | PDMA_CSR_MODE_SEL_P2M;
PDMA0->SAR = UARTPort; /* Set Source Address */
PDMA0->DAR = (uint32_t)DestArray; /* Set Destination Address */
PDMA0->BCR = UART_TEST_LENGTH;
/* Enable PDMA Block Transfer Done Interrupt */
PDMA0->IER = PDMA_IER_BLKD_IE_Msk;
NVIC_EnableIRQ(PDMA_IRQn);
if(g_u32TwoChannelPdmaTest==0)
{
UART0->IER|= UART_IER_RDA_IEN_Msk;
NVIC_EnableIRQ(UART02_IRQn);
}
/* Trigger PDMA0 */
PDMA0->CSR|= PDMA_CSR_TRIG_EN_Msk;
if(g_u32TwoChannelPdmaTest==1)
PDMA1->CSR|= PDMA_CSR_TRIG_EN_Msk;
/* Enable UART1 TX and RX DMA function */
if(g_u32TwoChannelPdmaTest==1)
UART1->IER|= UART_IER_DMA_TX_EN_Msk;
else
UART1->IER&= ~UART_IER_DMA_TX_EN_Msk;
UART1->IER|= UART_IER_DMA_RX_EN_Msk;
IntCnt = 0;
/* Trigger PDMA 10 time and the S/W Flag will be change in PDMA callback funtion */
while(IsTestOver==FALSE);
/* Disable PDMA clock */
SYSCLK->AHBCLK&= ~SYSCLK_AHBCLK_PDMA_EN_Msk;
/* Disable UART0 RDA interrupt */
UART0->IER&= ~UART_IER_RDA_IEN_Msk;
NVIC_DisableIRQ(UART02_IRQn);
return;
}
