topic Re: Processor Expert creates incorrect MUX value for Kinetis FlexBus in Processor Expert Software

Processor Expert creates incorrect MUX value for Kinetis FlexBus

leccy — Thu, 23 Feb 2012 17:27:36 GMT

I have tried to implement a FlexBus on CW10.1 with PE for Kinetis K20.

The code generated in cpu.c when the RW pin is enabled tried to set MUX[4] for the FB_RW_b pin. According to the data sheets, this should be MUX[5], along with all the other FlexBus pins. I cannot find a reference to this in any errata.

leccy

Re: Processor Expert creates incorrect MUX value for Kinetis FlexBus

ProcessorExpert — Thu, 23 Feb 2012 18:34:30 GMT

Hello,

we are sorry for the invonvenience. We will fix it within CW V10.2 update. For now as workaround please add the following row after calling PE_low_level_init:

  /* PORTC_PCR11: ISF=0,MUX=5 */
  PORTC_PCR11 = (uint32_t)((PORTC_PCR11 & (uint32_t)~0x01000200UL) | (uint32_t)0x0500UL);

best regards
Vojtech Filip
Processor Expert Support Team

Re: Processor Expert creates incorrect MUX value for Kinetis FlexBus

leccy — Fri, 24 Feb 2012 00:08:06 GMT

Thanks for the quick reply.

Would you also know why the P&E OSJTAG debugger gives a memory error if i configure the FlexBus in PE, and try to debug the project?

leccy