MKL46Z256VLL4 TPM0 counter not counting

[vasil_zhmendak]

Hello,

I am trying to setup "Center Aligned" PWM signal with MK46Z256VLL4 MCU integrated on FRDM-KL46Z development board and running into issue of TPM0 counter not counting. I attached screenshots of my TPM0 counter code initialization and register status.

"DBGMODE" bits in TPM0_CONF register are set such that debug mode is enabled since I know that having these bits disabled will prevent counter from counting in debug mode.

I spent numerous hours reviewing KL46 reference manual for this feature setup and just can't locate the issue. 

Thank you,

Vasil

[nxf56274]

Hi,

Our tpm example is Center Aligned. Why not use our example? Welcome | MCUXpresso SDK Builder  Use this link to download the SDK/

Have a great day,
TIC

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[vasil_zhmendak]

Hi,

Thank you for pointing this out. After reviewing "frdmkl46z_tpm_simple_pwm" I was able to locate problem in my code. I was not setting TPM clock source so that is the reason why counter was not counting. After adding below line to my code issue went away. 

CLOCK_SetTpmClock(1U);

Thank you!