CCS/TMS320C6748: NOR flash writer not working with NOR flash in custom board

HARIKRISHNAN P

Part Number: TMS320C6748
Other Parts Discussed in Thread: OMAPL138

Tool/software: Code Composer Studio

In our application, we have a NOR flash connected to C6748 using EMIFA interface. The NOR flash is Cypress S29AL008J. We tried using the NOR flash writer provided in Serial Flash utilities to flash the program to the NOR flash. But the programmer is getting stuck in NOR_open function in the NOR_Flash Writer program. We also tried using the serial flash utility. This too is getting stuck in "Waiting for SFT from OMAPL138". Could you please let me know how to debug this? Also, please let me know what all needs to verified in hardware connections to the NOR flash from C6748 perspective.

over 3 years ago

0 HARIKRISHNAN P over 3 years ago

Prodigy 205 points

Could someone please guide me in this matter?

0 HARIKRISHNAN P over 3 years ago in reply to HARIKRISHNAN P

Prodigy 205 points

Someone please help me. I am really stuck at this point with no idea on how to proceed.

0 HARIKRISHNAN P over 3 years ago in reply to HARIKRISHNAN P

Prodigy 205 points

Sahin Okur Could you please help me on this as well? I really appreciate your help over the course of my experience with C6748.

0 Sahin Okur over 3 years ago in reply to HARIKRISHNAN P

TI__Mastermind 27355 points

Hello,

Have you referred to the following?

Connecting NOR Flash to OMAP-L138

Using the OMAP-L132/L138 Bootloader

OMAPL138/C6748 ROM Bootloader Resources and FAQ

I'm linking some similar E2E threads below that may help as well.

https://e2e.ti.com/support/processors/f/791/t/464743

https://e2e.ti.com/support/processors/f/791/t/834451

https://e2e.ti.com/support/processors/f/791/t/131687

If the above doesn't help resolve your issue, please run the debug GEL file as described in section 4 of OMAPL138/C6748 ROM Bootloader Resources and FAQ and post the log here.

Regards,
Sahin

0 HARIKRISHNAN P over 3 years ago in reply to Sahin Okur

Prodigy 205 points

Thanks Sahin for pointing me to right documentations. We have identified a schematics issue in which EMA_BA[1] was not connected to the A[0] of NOR flash. Could you please also let me know whether Cypress NOR flashes will be supported by the NOR flash writer by TI. Or should we also plan to change it to a manufacturer supported. In the source code of the driver for NOR we found this,

// Supported Flash Manufacturers
typedef enum _NOR_MANF_ID_
{
UNKNOWN_ID = 0x00,
AMD = 0x01,
FUJITSU = 0x04,
INTEL = 0x89,
MICRON = 0x2C,
SAMSUNG = 0xEC,
SHARP = 0xB0
}
NOR_ManfID;

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CCS/TMS320C6748: NOR flash writer not working with NOR flash in custom board