MSPM0L1306: Timer driver

Trupti Kavadi

Part Number: MSPM0L1306

Tool/software:

Hi,

During initialization of Timer0 when the NVIC enable is called, instantly the timer IRQ is generated but on the next run IRQ is generated every 1ms as configured

For the first time just after initialization why IRQ is generated even when all configuration are properly checked

Basic configurations

Up counter
Counter is initially reset then updated with proper time count value for 1ms
Interrupt is enabled on peripheral level
NVIC Enable is called
Just after this IRQ is generated for first time only

May I know any suggestions for this issue

Thanks,

Trupti.

6 months ago

0 Yuhao Zhao 6 months ago

TI__Genius 9800 points

Which timer interrupt are you using here? Zero event, LOAD event or CC event?

0 Trupti Kavadi 6 months ago in reply to Yuhao Zhao

Prodigy 30 points

Hi Yuhao, Its LOAD event and clock frequency used is 32MHz

0 Yuhao Zhao 6 months ago in reply to Trupti Kavadi

TI__Genius 9800 points

Could you try to use Zero event here? Or use down counter here?

0 Trupti Kavadi 6 months ago in reply to Yuhao Zhao

Prodigy 30 points

Okay, Once will try with Zero event

0 Trupti Kavadi 6 months ago in reply to Yuhao Zhao

Prodigy 30 points

Hi Yuhao,

I have tried with Zero event and Down count mode, still the same issue is being observed

May I know any other suggestions for this issue

0 Yuhao Zhao 5 months ago in reply to Trupti Kavadi

TI__Genius 9800 points

I did a test but it looks good.

Two IO is used to observe the timepoint. First IO toggle when startCounter, second IO toggle is in timer interrupt.

Timer is set to Periodic UP counting with 1ms period, LOAD interrupt is used.

My test code is based on timx_timer_mode_periodic_sleep_LP_MSPM0L1306_nortos_ticlang

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MSPM0L1306: Timer driver