S12 / MagniV MicrocontrollersのトピックRe: mc9s12 CAN wake up fail

mc9s12 CAN wake up fail

fupeng — Wed, 09 Aug 2017 10:45:51 GMT

Hi,

I am using MC9S12xet256 micrcontroller,I use the Processor Expert to create the code.In stop mode, Normally I can wake up it by CAN,but when the AD module added,I can not wake up by CAN.

Execute the code as follows：

main.c

for(;;)

{

AD1_Measure(TRUE); /*It is possible to delete these two lines*/
AD1_GetValue16(&advalue);

if(EnterStopFlag)

{

EnterStopFlag = 0;

/*turn off led*/

CAN1_SetSleepRequest();
Cpu_SetStopMode();

/*turn on led*/

}

event.c

void CAN1_OnFullRxBuffer(void)
{
...

   ...
   if(MessageID == 0x101)
   {
      EnterStopFlag= 1;
   }
   else
   {
      EnterStopFlag= 0;
   }
}

void CAN1_OnWakeup(void)
{
/* Write your code here ... */
CAN1_ClearSleepRequest();
}

Can anybody please help me reolve this issue?

Regards,

Felix

Re: mc9s12 CAN wake up fail

danielmartynek — Wed, 09 Aug 2017 21:09:24 GMT

Hi,

Can you attach the project?

Regards,

Daniel

Re: mc9s12 CAN wake up fail

fupeng — Thu, 10 Aug 2017 01:56:42 GMT

I am grateful for your response.

Re: mc9s12 CAN wake up fail

fupeng — Thu, 10 Aug 2017 08:59:20 GMT

Hi,

When I don't add AD module,I tried many times stop-> wake up ->stop,at last MCU can not be wake up.

Re: mc9s12 CAN wake up fail

danielmartynek — Tue, 15 Aug 2017 14:20:20 GMT

Hi,

Sorry for the late response.

I have run the project but I don't see any problem.

It always wake up regardless of ADC.

Regards,

Daniel