TMS320F28374S: System clock initialization and SysCtl_setClock() usage

Carlo Taboni

Prodigy 50 points

Part Number: TMS320F28374S

Hi all,

I am developing an application based on F28374S and driverlib.

I have performed system clock initialization, based on C2000 Ware examples:

SysCtl_setClock(DEVICE_SETCLOCK_CFG);

ASSERT(SysCtl_getClock(DEVICE_OSCSRC_FREQ) == DEVICE_SYSCLK_FREQ)

Is it sufficiently safe, or is better also to check SysCtl_setClock() return value, and perform retries using SysCtl_resetMCD()?

Thank you,

Carlo

over 7 years ago

0 Christopher Chiarella over 7 years ago

TI__Mastermind 30255 points

Carlo

The ASSERT is targeted for debugging during development to help catch run time issues and invalid parameters. You can use both, but you should plan to use the return value from SysCtl_setClock() and handle accordingly.

Best regards
Chris

0 Carlo Taboni over 7 years ago in reply to Christopher Chiarella

Prodigy 50 points

Thank you Chris.

So could it be something like this?

bool clockRunning;

clockRunning = false;

while (!clockRunning)
{
clockRunning = SysCtl_setClock(DEVICE_SETCLOCK_CFG);

if (!clockRunning)
{
SysCtl_resetMCD();
}
}

// si verifica che a frequenza di clock configurata coincida con quella attesa
ASSERT(SysCtl_getClock(OSCSRC_FREQ) == SYSCLK_FREQ);

Thank you,
Carlo

0 Christopher Chiarella over 7 years ago in reply to Carlo Taboni

TI__Mastermind 30255 points

Carlo

Yes, that looks fine.

Best regards
Chris

C2000™︎ microcontrollers

C2000 microcontrollers forum

TMS320F28374S: System clock initialization and SysCtl_setClock() usage