CCS/TMS570LS0432: UART on N2HET

6165.HET_EMU_SCI.c

Hi,

I've attached the modified HET_EMU_SCI.c file, after hetInit() function (which is not changed) i'm using following lines :

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asm(" cpsie i");
hetREG1->GCR = 0x01030001;

//Send UART data using Polling
hetREG1->INTENAC = 0xFFFFFFFF;
hetREG1->FLG = 0xFFFFFFFF;
HetUART1PutText("Send Data using Polling\n\r");
HetUART1Printf("BaudRate: %d bps.\n\r", 115200);

//Clear the flags, Enable transmit interrupts
while(hetRAM1->Instruction[2].Data != 0);
//while(hetRAM1->Instruction[4].Data != 0);//There could be a small glitch when switching between interrupt and polling
hetREG1->FLG = 0xFFFFFFFF;
hetREG1->INTENAS = 0x8;

//Send UART data using interrupts
while(hetRAM1->Instruction[2].Data != 0);
HetUART1PutChar('S');
while(Bit_Tran<27);

//Clear the flags, Disable transmit interrupts
hetREG1->INTENAC = 0x8; //disable the transmit
while(hetRAM1->Instruction[2].Data != 0);
hetREG1->FLG = 0xFFFFFFFF; //clear interrupt flags

//Receive UART data using Polling
HetUART1PutText("Type Any Letter to Echo using Polling:\n\r");
while((CharReceive=HetUART1GetChar()) == 0);
HetUART1PutChar(CharReceive);

//Receive UART data using interrupt
hetREG1->INTENAS = 1<<23;//enable Receive interrupt
HetUART1PutText("\n\rType Any Letter to Echo using interrupt:\n\r");

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Also, added this function in notification.c

void hetNotification(hetBASE_t *het, uint32_t offset)
{
/* enter user code between the USER CODE BEGIN and USER CODE END. */
/* USER CODE BEGIN (39) */
//volatile int temp;
char Rec_Data;
if(offset==4)
{
Bit_Tran ++;
if(Bit_Tran < 27)
HetUART1PutChar(Output[Bit_Tran]);
}
else if(offset==24)
{
Rec_Data = hetRAM1->Instruction[25].Data;
HetUART1PutChar(Rec_Data);
}
/* USER CODE END */
}

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The uC is running @ 80MHz, using NHET00 for Tx & NHET02 for Rx.

1373.HET_EMU_SCI.txt

I've attached the file with *.txt extn, as the page was not allowing me to upload with *.het extn.

I didn't do any changes in the *.het file. I just copied the file into my project. I made changes to the HET_EMU_SCI.c file, i changed the Baud rate according to my uc which is operating @ 80MMz.

Part Number: TMS570LS0432

Tool/software: Code Composer Studio

Anthony F. Seely  I've posted my query here, but no help. Need your inputs to get this resolved.

I worked with Pradeep to resolve this. Here's a working example for the TMS570LS04x.

0243.TMS570LS04_HET_EMU_SCI_20190325_2152.zip

The NHET triggers are working - only the baud rate is wrong.

Pradeep, please post the config modification that made it work at 115200 BAUD.