TMS320C6748: timer work abnormally in 64bit mode

Seems both posts you provided are discussing based on starterware code.

how to build the example under C:\ti\\pdk_omapl138_1_0_5\packages\ti\csl\example\timer? I did not find entrance in C:\ti\\pdk_omapl138_1_0_5\packages\makefile to build the example.

actually my question is not related to code itself.

Sahin,

#1. So the CSL timer example doesn't work  for c6748? right? and I building with your command, no example binary generated.

#2. the example you provided is based on Logic PD evm, and it is also not a public processor SDK example, will it support by BU?

#3. the example you provided is not very clear about using the timer.  the I2C_init() and LED_init is evmomapl138_bsl library function, Since Starterware is not supported anymore, I think logicPD BSL is not supported also. 

//---------------------------------------------------------------------------
// main()
//---------------------------------------------------------------------------
void main(void)
{

hardware_init(); // init hardware via Xware

BIOS_start();

}

//-----------------------------------------------------------------------------
// hardware_init()
//-----------------------------------------------------------------------------
void hardware_init(void) //called by main
{
I2C_init(I2C0, I2C_CLK_400K); // init I2C channel - BSL
LED_init(); // init LED BSL

}

in the app.cfg, timer configure as below, I can't get detail configuration about the timer with below script.

BIOS.libType = BIOS.LibType_Custom;
BIOS.logsEnabled = true;
BIOS.assertsEnabled = true;
var timer0Params = new Timer.Params();
timer0Params.instance.name = "Timer_2";
timer0Params.period = 500000;
Program.global.Timer_2 = Timer.create(2, "&ledToggle", timer0Params);

//-----------------------------------------------------------------------------
// ledToggle() ISR (called by BIOS Hwi, see app.cfg)
//-----------------------------------------------------------------------------
void ledToggle(void) //called by main
{
LED_toggle(LED_1); //toggle LED_1 on C6748 EVM

i16ToggleCount += 1; // keep track of #toggles

Log_info1("LED TOGGLED [%u] times", i16ToggleCount);

}

#4. Actually, the starterware timer example is very simple, at least it is more simple than the lab example, my question is also simple, when set TMR_PERIOD_MSB32 other than 0, the interrupt period is abnormal.

int main(void)
{
/* Set up the UART2 peripheral */
UARTStdioInit();

/* Set up the Timer2 peripheral */
TimerSetUp64Bit();

/* Set up the AINTC to generate Timer2 interrupts */
TimerIntrSetUp();

/* Enable the timer interrupt */
TimerIntEnable(SOC_TMR_2_REGS, TMR_INT_TMR12_NON_CAPT_MODE);

.........

}

#define TMR_PERIOD_LSB32 (0x07FFFFFF)  //1 second
#define TMR_PERIOD_MSB32 (0x1)    // No problem with 0, if with non-zero, the period is abnormal.

/*
** Setup the timer for 64 bit mode
*/
static void TimerSetUp64Bit(void)
{
/* Configuration of Timer */
TimerConfigure(SOC_TMR_2_REGS, TMR_CFG_64BIT_CLK_INT);

/* Set the 64 bit timer period */
TimerPeriodSet(SOC_TMR_2_REGS, TMR_TIMER12, TMR_PERIOD_LSB32);
TimerPeriodSet(SOC_TMR_2_REGS, TMR_TIMER34, TMR_PERIOD_MSB32);
}