void init_uart()
{
DMA_start(hDmaRx);
/* Start the MCBSP and Sample Rate Generator */
MCBSP_start(C55XX_UART_hMcbsp, MCBSP_SRGR_START, 0xFFFF);
/* Take MCBSP receive and transmit out of reset */
MCBSP_start(C55XX_UART_hMcbsp, MCBSP_XMIT_START | MCBSP_RCV_START, 0xFFFF);
MCBSP_write32(C55XX_UART_hMcbsp, 0xffffffff); /* kickstart the serial port */
DEBUG_putc('d');
DEBUG_puts("ebug_printf_ok\r\n");
}
///// program flow reaches expected exit point(s).
/////
void main(void)
{
CSL_DMA_ChannelObj dmaObj;
CSL_Status status;
Uint16 chanNumber;
Uint16 i;
printf("\n DMA POLLED MODE TEST!\n");
for(i = 0; i < CSL_DMA_BUFFER_SIZE; i++)
{
dmaSRCBuff[i] = 0xFFFF;
dmaDESTBuff[i] = 0x0000;
}
#if (defined(CHIP_C5505_C5515) || defined(CHIP_C5504_C5514) || defined(CHIP_C5517))
dmaConfig.pingPongMode = CSL_DMA_PING_PONG_DISABLE;
#endif
dmaConfig.autoMode = CSL_DMA_AUTORELOAD_DISABLE;
dmaConfig.burstLen = CSL_DMA_TXBURST_8WORD;
dmaConfig.trigger = CSL_DMA_SOFTWARE_TRIGGER;
dmaConfig.dmaEvt = CSL_DMA_EVT_NONE;
dmaConfig.dmaInt = CSL_DMA_INTERRUPT_DISABLE;
dmaConfig.chanDir = CSL_DMA_READ;
dmaConfig.trfType = CSL_DMA_TRANSFER_MEMORY;
dmaConfig.dataLen = CSL_DMA_BUFFER_SIZE * 2;
dmaConfig.srcAddr = (Uint32)dmaSRCBuff;
dmaConfig.destAddr = (Uint32)dmaDESTBuff;
status = DMA_init();
if (status != CSL_SOK)
{
printf("DMA_init() Failed \n");
/////INSTRUMENTATION FOR BATCH TESTING -- Part 2 --
///// Reseting PaSs_StAtE to 0 if error detected here.
PaSs_StAtE = 0x0000; // Was intialized to 1 at declaration.
/////
}
for( chanNumber = 0; chanNumber < CSL_DMA_CHAN_MAX; chanNumber++)
{
printf("\n Test for DMA Channel No : %d \t", chanNumber);
dmaHandle = DMA_open((CSL_DMAChanNum)chanNumber,&dmaObj, &status);
if (dmaHandle == NULL)
{
printf("DMA_open() Failed \n");
break;
}
status = DMA_config(dmaHandle, &dmaConfig);
if (status != CSL_SOK)
{
printf("DMA_config() Failed \n");
break;
}
status = DMA_getConfig(dmaHandle, &getdmaConfig);
if (status != CSL_SOK)
{
printf("DMA_getConfig() Failed \n");
break;
}
status = DMA_start(dmaHandle);
if (status != CSL_SOK)
{
printf("DMA_start() Failed \n");
break;
}
while(DMA_getStatus(dmaHandle));
status = DMA_reset(dmaHandle);
if (status != CSL_SOK)
{
printf("DMA_close() Failed \n");
break;
}
status = DMA_close(dmaHandle);
if (status != CSL_SOK)
{
printf("DMA_reset() Failed \n");
break;
}
/* validation for set and get config parameter */
if((dmaConfig.autoMode) != (getdmaConfig.autoMode))
{
printf("Mode not matched\n");
}
if(((dmaConfig.burstLen) != (getdmaConfig.burstLen)))
{
printf("Burst length not matched\n");
}
if(((dmaConfig.trigger) != (getdmaConfig.trigger)))
{
printf("Triger type not matched\n");
}
if(((dmaConfig.dmaEvt) != (getdmaConfig.dmaEvt)) )
{
printf("Event not matched\n");
}
if(((dmaConfig.dmaInt) != (getdmaConfig.dmaInt)))
{
printf("Interrupt state not matched\n");
}
if(((dmaConfig.chanDir) != (getdmaConfig.chanDir)))
{
printf("Direction read or write not matched\n");
}
if(((dmaConfig.trfType) != (getdmaConfig.trfType)))
{
printf("Transfer type not matched\n");
}
if(((dmaConfig.dataLen) != (getdmaConfig.dataLen)))
{
printf("data length of transfer not matched\n");
}
if(((dmaConfig.srcAddr) != (getdmaConfig.srcAddr)))
{
printf("Source address not matched\n");
}
if(((dmaConfig.destAddr) != (getdmaConfig.destAddr)))
{
printf("Destination address not matched\n");
}
for(i = 0; i < CSL_DMA_BUFFER_SIZE; i ++)
{
if(dmaSRCBuff[i] != dmaDESTBuff[i])
{
printf("Buffer miss matched at position %d\n",i);
break;
}
}
if(i == CSL_DMA_BUFFER_SIZE)
{
printf("Success");
}
for(i = 0; i < CSL_DMA_BUFFER_SIZE; i++)
{
dmaSRCBuff[i] = 0xFFFF;
dmaDESTBuff[i] = 0x0000;
}
}
if(chanNumber == 16)
{
printf("\n\n DMA POLLED MODE TEST PASSED!!\n");
}
else
{
printf("\n\n DMA POLLED MODE TEST FAILED!!\n");
/////INSTRUMENTATION FOR BATCH TESTING -- Part 2 --
///// Reseting PaSs_StAtE to 0 if error detected here.
PaSs_StAtE = 0x0000; // Was intialized to 1 at declaration.
/////
}
/////INSTRUMENTATION FOR BATCH TESTING -- Part 3 --
///// At program exit, copy "PaSs_StAtE" into "PaSs".
PaSs = PaSs_StAtE; //If flow gets here, override PaSs' initial 0 with
///// // pass/fail value determined during program execution.
///// Note: Program should next exit to C$$EXIT and halt, where DSS, under
///// control of a host PC script, will read and record the PaSs' value.
/////
}
/**
* \brief Function to test the CSL UART DMA mode operation
*
* This function configures the UART in DMA mode for communicating
* with the HyperTerminal on the host PC. This function sends/receives
* data to/from the HyperTerminal using CSL DMA module.
*
* \param none
*
* \return Test result
*/
CSL_Status CSL_uartDmaTest(void)
{
CSL_UartHandle hUart;
CSL_Status status;
int looper;
Uint32 sysClk;
sysClk = getSysClk();
mySetup.clkInput = sysClk;
/* Initialize CSL UART module */
status = UART_init(&uartObj,CSL_UART_INST_0,UART_POLLED);
if(CSL_SOK != status)
{
printf("UART_init failed error code %d\n",status);
return(status);
}
else
{
printf("UART_init Successful\n");
}
/* Handle created*/
hUart = (CSL_UartHandle)(&uartObj);
/* Configure the DMA channel for UART transmit */
#if (defined(CHIP_C5505_C5515) || defined(CHIP_C5504_C5514))
dmaConfig.pingPongMode = CSL_DMA_PING_PONG_DISABLE;
#endif
dmaConfig.autoMode = CSL_DMA_AUTORELOAD_DISABLE;
dmaConfig.burstLen = CSL_DMA_TXBURST_1WORD;
dmaConfig.trigger = CSL_DMA_EVENT_TRIGGER;
dmaConfig.dmaEvt = CSL_DMA_EVT_UART_TX;
dmaConfig.dmaInt = CSL_DMA_INTERRUPT_DISABLE;
dmaConfig.chanDir = CSL_DMA_WRITE;
dmaConfig.trfType = CSL_DMA_TRANSFER_IO_MEMORY;
dmaConfig.dataLen = CSL_UART_WRBUF_SIZE;
dmaConfig.srcAddr = (Uint32)guartDmaWriteBuf;
dmaConfig.destAddr = (Uint32)&(hUart->uartRegs->THR);
dmaWrHandle = CSL_configDmaForUart(&dmaWrChanObj, CSL_DMA_CHAN4);
if(dmaWrHandle == NULL)
{
printf("DMA Config for Uart Write Failed!\n!");
return(CSL_TEST_FAILED);
}
/* Start Dma transfer */
status = DMA_start(dmaWrHandle);
if(status != CSL_SOK)
{
printf("Uart Dma Write Failed!!\n");
return(status);
}
/* Configure UART registers using setup structure */
status = UART_setup(hUart,&mySetup);
if(CSL_SOK != status)
{
printf("UART_setup failed error code %d\n",status);
return status;
}
else
{
printf("UART_setup Successful\n");
}
/* Check transfer complete status */
while(DMA_getStatus(dmaWrHandle));
/* Configure the DMA channel for UART receive */
#if (defined(CHIP_C5505_C5515) || defined(CHIP_C5504_C5514))
dmaConfig.pingPongMode = CSL_DMA_PING_PONG_DISABLE;
#endif
dmaConfig.autoMode = CSL_DMA_AUTORELOAD_DISABLE;
dmaConfig.burstLen = CSL_DMA_TXBURST_1WORD;
dmaConfig.trigger = CSL_DMA_EVENT_TRIGGER;
dmaConfig.dmaEvt = CSL_DMA_EVT_UART_RX;
dmaConfig.dmaInt = CSL_DMA_INTERRUPT_DISABLE;
dmaConfig.chanDir = CSL_DMA_READ;
dmaConfig.trfType = CSL_DMA_TRANSFER_IO_MEMORY;
dmaConfig.dataLen = CSL_UART_RDBUF_SIZE;
dmaConfig.srcAddr = (Uint32)&(hUart->uartRegs->THR);
dmaConfig.destAddr = (Uint32)guartDmaReadBuf;
dmaRdHandle = CSL_configDmaForUart(&dmaRdChanObj,CSL_DMA_CHAN4);
if(dmaRdHandle == NULL)
{
printf("DMA Config for DMA Read Failed!\n!");
return(CSL_TEST_FAILED);
}
/* Start Dma transfer */
status = DMA_start(dmaRdHandle);
if(status != CSL_SOK)
{
printf("Uart Dma Write Failed!!\n");
return(status);
}
/* Check transfer complete status */
while(DMA_getStatus(dmaRdHandle));
/* Send a message to HyperTerminal to inform that the reading has been stopped */
status = UART_fputs(hUart,"\r\n\nPlease stop typing, reading already stopped...!!!",0);
if(CSL_SOK != status)
{
printf("UART_fputs failed error code %d\n",status);
return(status);
}
printf("\nMessage Received from the HyperTerminal: ");
/* Display the Message Read from the HyperTerminal */
for(looper = 1; looper < (NO_OF_CHAR_TO_READ*2); looper+=2)
{
printf("%c",guartDmaReadBuf[looper]);
}
printf("\n");
status = UART_fputs(hUart,"\r\n\nPlease Verify The Text Displayed In The CCS stdout Window!!\r\n",0);
if(CSL_SOK != status)
{
printf("UART_fputs failed error code %d\n",status);
return(status);
}
return(CSL_SOK);
}
