Hi,
I had developed one application with DSP/BIOS 5.41. In this app, I have one UART device, a main() and a GPSInit() task. I removed the EVM6747_dsp.gel from my CCS 3.3 and then connect to my target. I have duplicated the functions in the GEL in my application to take care of the Setup_System_Config(), Setup_PLL(), Setup_Psc_All_On(), Setup_EMIFA() and Setup_EMIFB().
Here is my problem. When I run my app within the CCS, I realised that the UART device is created and hence its init function, UartGPSInit(), is executed automatically. I expected the main() would be run next, then the GPSInit() task. However, both main() and GPSInit() tasks were not executed at all. Instead, after UartGPSInit() finished, the app is terminated without any error messages whatsoever.
My questions are:
1. Why both main() and GPSInit() tasks are not executed. I am sure I had GPSInit() task setup properly in the TCF. Is it something to do with my GEL replacement codes?
2. Can you explain what are the memory mapping functions in the GEL? I didn't have them in my GEL replacement codes. Is the the source of my problem?
For your information, my GEL replacement codes are nothing more than just copy-and-paste, plus modify to C syntax. I called these Setup_xxx() codes from GPSInit() task. Below are the snapshot of my app.
/////////////////////////////////////////////////////////// Uart device driver will call the codes below.///////////////////////////////////////////////////////////
void GPSUartInit()
{
Uart_init();
uartParams = Uart_PARAMS;
uartParams.baudRate = Uart_BaudRate_9_6K; // Baud rate 9600.
uartParams.hwiNumber = 9; // Use INT9.
uartParams.opMode = Uart_OpMode_INTERRUPT; // Use interrupt mode.
// Enable the UART instance in the PSC module
Psc_ModuleClkCtrl(Psc_DevId_1, CSL_PSC_UART1, TRUE);
}
//////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
////////////////////////////// This is a task scheduled in the TCF /////////////////////////////////////////////////////////
void GPSInit(void)
{
:
:
// The initialisation is intended to replace the GEL
initSysCfg(); // Setup pinmux
initPll(); // Setup PLL
initPSCOn(); // Setup PSC
initEMIFA(); // Setup External Memory Interface A
initEMIFB(); // Setup External Memory Interface B
:
:
}
Thank you so much for your help. Truly appreciate it.
Chee-Beng
