HalCoGen RM48 Selftests Bugs

Lukas Kuenzi

Intellectual 400 points

Other Parts Discussed in Thread: RM48L952, HALCOGEN

Today, I observed some problems with HalCoGen and RM48L952 with selftests enabled:

- Enable FMCBUS2 Error Check in HalCoGen: The function fmcBus2Check needs a power on reset to work properly

- Enable ESRAM ECC Check in HalCoGen: The function checkRAMECC has some bugs:

The following line in checkRAMECC is...

if(!(((tcram1REG->RAMERRSTATUS & 0x1U) == 0x1U) && ((tcram1REG->RAMERRSTATUS & 0x1U) == 0x1U)))

and should be

if(!(((tcram1REG->RAMERRSTATUS & 0x1U) == 0x1U) && ((tcram2REG->RAMERRSTATUS & 0x1U) == 0x1U)))

In the same function a short delay is needed in order to pass the RAM ECC selftest:

    u32Cnt = 2;
   while( u32Cnt > 0)
   {
       u32Cnt--;
   }

    /* Force a single bit error in both the banks */
    tcramA1bitError ^= 1U;
    tcramB1bitError ^= 1U;

Without the delay the selftest will always fail. A reason for this could be caching?!

Could you please check this and confirm me that issue?

Thanks.

over 11 years ago

0 Sunil Oak over 11 years ago

TI__Mastermind 49120 points

Lukas,

I have reported your findings to the HALCoGen team. These will be addressed in a future update.

I will also try and replicate your observations related to the flash and RAM ECC checks and get back to you. Do you modify the HALCoGen generated clock domain settings in any way or can I assume that you are running with CPU clock frequency of 220MHz when you run these self-checks of the ECC logic?

Regards, Sunil

0 Sunil Oak over 11 years ago in reply to Sunil Oak

TI__Mastermind 49120 points

Lukas,

I generated a new project using HALCoGen for the RM48L952 MCU and could not replicate the flash/RAM ECC check errors that you are reporting. Can you please attach the CCS project that I can use to try and observe the behavior?

Regards, Sunil

0 Lukas Kuenzi over 11 years ago in reply to Sunil Oak

Intellectual 400 points

Hi Sunil

I attached the Keil uVision sample project with the HalCoGen code and settings. I modified some PLL settings: Clk Divider, Multiplier and Output Divider. But the resulting CPU frequency is 220MHz.

Regards, Lukas

Selftest Sample Project.zip

0 Lukas Kuenzi over 11 years ago in reply to Lukas Kuenzi

Intellectual 400 points

Hi Sunil

Are there any news on that? Could you replicate the behavior I had?

Regards, Lukas

0 Sunil Oak over 11 years ago in reply to Lukas Kuenzi

TI__Mastermind 49120 points

Hi Lukas,

I ran the code that you sent and it runs fine on my setup. Can you confirm the frequency of the main oscillator on your setup? Are you running the test on your own PCB or the TI RM48x HDK?

Regards, Sunil

0 Lukas Kuenzi over 11 years ago in reply to Sunil Oak

Intellectual 400 points

Hi Sunil

I ran the code on my own PCB as well as on the TI RM48x HDK. With both, I have the same behavior.
The frequency of the main oscillator is 16Mhz as expected.

Regards,
Lukas

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HalCoGen RM48 Selftests Bugs