8-bit Microcontrollers中的主题 Modulo Timer (S08MTIMV1) does not work in MC9S08SG4

Modulo Timer (S08MTIMV1) does not work in MC9S08SG4

tejaskamod — Thu, 13 Aug 2015 19:35:03 GMT

I am having issues with modulo timer in my SG4. The counter does not count. The issue is with RTC module.

MTIMCLK_CLKS = 0;

MTIMCLK_PS = 0;

MTIMSC_TOIE = 0;

MTIMMOD = 0xFF;

MTIMSC_TRST = 1;

MTIMSC_TSTP = 0;

Rick_Li — Wed, 26 Aug 2015 05:56:05 GMT

Hi Tejas Kamod,

I tried your MTIM configuration on my side and the counter works, it runs as expect.

According your configuration, the CLOCK source is BUS clock.

And the RTC can not be used as MTIM clock source.So, I don't exactly know what "The issue is with RTC module" means.

tejaskamod — Wed, 26 Aug 2015 07:03:59 GMT

Hello,

Thanks for the reply,

I can see the counter is ticking in full chip simulation mode, but when I try to debug the code with USB multilink is always remains ZERO.

All the MTIM register are showing value of 0x00.

I tried to use RTC and can see same issue, all the RTC register values remains ZERO.

All other peripherals including TPM are working perfect on target.