AnsweredAssumed Answered

the configuration of counter prescale of MPC5748G, STM module,

Question asked by Shifei Qian on Aug 18, 2016
Latest reply on Sep 1, 2016 by Shifei Qian

Dear Sir. or Mandam,

 

I have some problem in the the configuration of counter prescale of MPC5748G, STM module, attached is my project and the serial debugging assistant that will be used in my project.

 

In my project, STM_0 is enabled. STM_0.CNT.R increments at the frequency of the system clock, the compare value is set to 0x77359400. When STM_0.CNT.R matches the compare value, an interrupt will be inserted and LED1 will be turned on, "the channel compare register matches the timer counter" will be displayed in the serial debugging assistant.

 

However, if you step into STM_Init(&STM_0,&sSTMConfig1) in main.c,

 

1.png

then uncomment the "STM_Counter_Prescaler(pSTM, (config->counter).CounterPrescaler);" which set the devide value for the prescaler,

3.png

then the program will stop at this line while debugging.

Original Attachment has been moved to: mpc5748g_Z4_1.rar

Outcomes