ospi flash write

Hi Eli Mordel,

In your project are you using the Flash APIs used in the ospi_flash_io or are you using the OSPI APIs ?

Best Regards,
Aakash

Hi Aakash,

Here is the code in both projects:

int main(void)

{

#define APP_OSPI_FLASH_OFFSET_BASE (0x600000U)
#define APP_OSPI_DATA_SIZE (256) 

System_init();
Board_init();

Drivers_open();
Board_driversOpen();

int32_t status = SystemP_SUCCESS;
uint8_t gOspiTxBuf[APP_OSPI_DATA_SIZE]={0};
uint32_t offset = APP_OSPI_FLASH_OFFSET_BASE;

status = Flash_write(gFlashHandle[CONFIG_FLASH0], offset, gOspiTxBuf, APP_OSPI_DATA_SIZE);

return 0;

}//main

in the example all works in my code  fails at  sdk 1464  OSPI_writeFifoData(attrs->dataBaseAddr, pSrc, wrBytes);

What can be wrong ? How to proceed ?

Thanks,

Best Regards,

Eli

Hi Eli Mordel,

For the safety purpose, can you try "erase" operation before any subsequent "writes" ?

Best Regards,
Aakash

Hi Aakash,

I did with erase and without erase , with read and without read.

Still the CLANG project always succeeds writing  - status=0; the GCC project always fails writing - status= -1

Please help me  debug further.

Thanks,

Best Regards,

Eli

Hi Eli,

So this sounds like a compiler problem. You should've mentioned the same before, we could have debugged it much faster.

Let me come back with a solution in a day.

Best Regards,
Aakash

Hi Aakash,

Thanks !

Best Regards,

Eli

Hi Eli,

Can you try the following steps and check if it works:

1) Try reducing the optimization flag level to -O1 or -O0 and rebuild your example

2) Check if the base address & offset used in write operation is correct

Which version of MCU+SDK are you using?

Hi,

I've set the optimization to  -O0 on both projects.

I'm using the mcu_plus_sdk_am243x_08_06_00_43 on both projects.

Same code on both projects (as far as I can see) 

In GCC compiled project -> The problem occurs at line 1386:  int32_t OSPI_writeIndirect(OSPI_Handle handle, OSPI_Transaction *trans) finction

1408: const CSL_ospi_flash_cfgRegs *pReg = (const CSL_ospi_flash_cfgRegs *)attrs->baseAddr;   <--- baseAddr=0x0FC40000

1464: OSPI_writeFifoData(attrs->dataBaseAddr, pSrc, wrBytes);  <--fails      <--  attrs->dataBaseAddr=0x60000000

I have two projects which seems to have  same code , same sdk , same syscfg.

The projects runs on same board - same flash device

First compiled with CLANG - all works erase write read

Second compiled with GCC - erase read  write - fails

Maybe  if Base Address or offset were not correct the CLANG would not have been working .

What can I possibly check to find the difference or why the GCC project fails to write ?

Is there any workaround ?

Thanks,

Eli

Hi Eli Mordel,

Can you try writing only 4 bytes of data ? Does that work or not ? Also please share the project with us so we can replicate the issue.

Best Regards,
Aakash

Hi Aakash,

I've tried with 1,2 and 4 bytes of data - same results.

I'm compiling with GCC - so you need all my files including the sdk with it's makefiles - correct ?

Thanks,

Best Regards,

Eli 

Hi Aakash,

The FLASH problem occurs on our board - not the EVM !

Thanks,

Best Regards,

Eli

Hi Aakash,

I'll try to attach my project (7zipped) - I cannot see it attached - maybe it's too big 140Kbytes

Thanks,

Best Regards,

Eli

Hi Eli

It should be possible to attach a 140KB project, just try drag and drop to see if it works.

If not, please share this directly over email.

Regards

Karan

Hi Karan,

I've tried to drag and tried over e-mail but it seems to be to big.

I'll ask my boss how to send it.

Basically is the sdk flash_io example with my json file  for the gd25q64e flash device (1s-1s-4s configuration)

It works fine with CLANG , but only the write function fails in GCC.

It happens on my board - I don't know yet what happens on the EVM -  maybe it's the next step.

Thanks,

Best Regards,

Eli

Hi Eli,

We have a planned debug session for 03/01/2024. Let's try to identify the issue here.

Best Regards,
Aakash