TSM320F28379D

Hi Ashish,

Here's an example you can have a look at:
C:\ti\c2000\C2000Ware_1_00_05_00\device_support\f2837xd\examples\cpu1\watchdog\cpu01

This is the only way to perform a Watchdog reset.

Regards,
Gautam

In my code when i am using DELAY_US()  function and doing run to line to while(1) loop then it is opening GEL expression But if i am not using DELAY_US() function then it working fine I want to why it is happening?

Here WATCHDOG is configured to cause a cpu reset(working fine).

#include "F28x_Project.h"
#include "config.h"
#define BLINKY_LED1 31

Uint32 loopcount = 0;
void main(void)
{
InitSysCtrl();
InitWatchdog();
GPIO_SetupPinMux(BLINKY_LED1, GPIO_MUX_CPU1, 0);
GPIO_SetupPinOptions(BLINKY_LED1, GPIO_OUTPUT, GPIO_PUSHPULL);
GPIO_WritePin(BLINKY_LED1,0);
DELAY_US(1000*1000);
GPIO_WritePin(BLINKY_LED1,1);
DELAY_US(1000*1000);
while(1)
{
loopcount++;
}
}

There is one Register in F2837xD_usDelay.asm named ACC Register which keeps getting incremented my code is stuck there only I want to know the reason and solution to this problem.

I am attaching screenshot where my code is stuck (There one commend line is there Loop is ACC>=0)that is where my code is stuck it is looping over here.Please help me resolve it.

thanks

Ashish,

Not very clear on the issue you are facing. If you are resetting the device by enabling the WD and not servicing WD then you'll see it's getting stuck because device will be in reset look. It'll boot, enable the WD and then go into delay loop, WD will reset the device and then come back to same. Since delay loop is taking most of the execution time, it appears as if code is stuck in this loop. Hope this is clear.

Regards,
Vivek Singh

This is my watchdog configuration file ,I am using serviceDog() function here after enabling watchdog.

How much time does cpu reset take?

After CPU reset the code will run again or wait at the starting line?

#ifndef CONFIG_H_
#define CONFIG_H_

#include "F2837xD_device.h"

//extern void Device_init(void);

void InitWatchdog(void)
{
/*
SysCtl_setWatchdogMode(SYSCTL_WD_MODE_RESET);
SysCtl_setWatchdogWindowValue(0);
ServiceDog();
SysCtl_enableWatchdog();
*/
{
asm(" EALLOW");
WdRegs.SCSR.all = 0x0000;
asm(" EDIS");
asm(" EALLOW");
WdRegs.WDCR.all = 0x0028;
WdRegs.WDWCR.all = 0x0000;
asm(" EDIS");
ServiceDog();
}
}

#endif /* CONFIG_H_ */