TMS570LS0714: erase and program error when call the F021 API

Ni Luke

Part Number: TMS570LS0714
Other Parts Discussed in Thread: TMS570LS1224

Hi， TI 570 team,

We need to support programming the device TMS570LS0714, we have already developed a bootloader that run in the RAM. And the bootloader would call API from the TI’s F021 Flash API.

This bootloader has worked for TMS570LS0812 and TMS570LS1224.

But it seems did not work for this device TMS570LS0714 when Erase or Program. Though we think these 3 devices are almost same in programming the flash.

In our Erase function like following picture, we found the FSM status is always busy(Fapi_Status_FsmBusy) after calling the API “Fapi_issueAsyncCommandWithAddress”. And It is always busy in programming Function after calling “Fapi_issueProgrammingCommand”. But it seems could be read in our read Function after calling the API “Fapi_doMarginRead”.

Could you help to give some instruction what may cause this error in Erase and Program.
I could send you the CCS project about this bootloader if needed.

over 2 years ago

0 QJ Wang over 2 years ago

TI__Guru**** 186226 points

Hi Luke,

The TMS570LS0714 uses the sample flash IP as TMS570LS12x does. But the TMS570LS0714 has smaller flash and less flash sectors. If you use PZ package, the CPU speed (100MHz) or the system frequency is much lower than TMS570LS12x which is in PGE package (160MHz).

0 Ni Luke over 2 years ago

Prodigy 20 points

Hi QJ Wang,

thanks for your reply. the device is TMS570LS0714APGEQQ1, It has 144 pin, so the cpu Speed may not the problem. Even if I change the speed to 100Mhz,

there still have the some issue. Is there anything else could result this.

thanks a lot

Luke

Best Regards

0 QJ Wang over 2 years ago in reply to Ni Luke

TI__Guru**** 186226 points

Is the flash wait stats programmed correctly? The RWAIT should be 3 for CPU=160MHz.

The wait states is located in FRDCNTL register.

0 Ni Luke over 2 years ago in reply to QJ Wang

Prodigy 20 points

Hi QJ Wang,

the wait stats should be ok. I just debug the bootloader, the values see in the picture. the FRdCntl val is 0x00000311,

but code always in the while( FAPI_GET_FSM_STATUS != Fapi_Status_Success ) loop.

0 Ni Luke over 2 years ago in reply to QJ Wang

Prodigy 20 points

Hi QJ Wang,

some new finding, if i change the SYS_CLK_FREQ to 80MHz in the erase function, it works for erase. but still did not work for program.

0 QJ Wang over 2 years ago in reply to Ni Luke

TI__Guru**** 186226 points

HiLuke，

Please refer to the CAN bootloader for LS0714:

https://git.ti.com/cgit/hercules_examples/hercules_examples/tree/Bootloaders?h=master

Double check your clock configuration: HCLK (system clock) is used in Flash API

+1 Ni Luke over 2 years ago in reply to QJ Wang

Prodigy 20 points

Hi QJ Wang,

your advice is good. the system clock configuration is still the setting of 160MHz. I changed the setting in system.c to the same as the CAN bootloader for LS0714. The Erase and Write are working now.

By the way, my device package is PGE PQFP144 pin, the system clock could be up to 160MHz. why it did not here. Anyway, current state could work for my project, thanks a lot.

Luke

Best Regards

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TMS570LS0714: erase and program error when call the F021 API