We are troubleshooting an issue that is only present in a recent build of boards. We are unable to write to flash. In this particular build we moved to a different flash due to obsolescence issues and are considering whether or not this is the root cause of our issue.
From 1374.S29GL-P_00.pdf to 1016.S29GL_128S_01GS_00.pdf (Replace P/N: S29GL256P11FFIV20 with S29GL256S11FHIV20)
Command: sfh_DM644x.exe -erase -targetType DM6441 -flashType NOR
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TI Serial Flasher Host Program for DM644x
(C) 2010, Texas Instruments, Inc.
Ver. 1.67
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Platform is Windows.
Globally erasing the NOR flash device on the DM6441
Attempting to connect to device COM1...
Press any key to end this program at any time.
Waiting for the DM644x...
BOOTME commmand received. Returning ACK and header...
ACK command sent. Waiting for BEGIN command...
Target: BEGIN
BEGIN commmand received. Sending CRC table...
100% [ ████████████████████████████████████████████████████████████ ]
CRC table sent.
Waiting for DONE...
DONE received. Sending the UBL...
100% [ ████████████████████████████████████████████████████████████ ]
UBL sent.
DONE received. UBL was accepted.
Waiting for SFT on the DM644x...
Target:
The program hangs at "Waiting for SFT on the DM644x..." for several minutes before "Target:" appears.
Using DVFlasher_1_12.exe, we confirmed that there is an issue writing to the flash in general:
Command: DVFlasher_1_12.exe -enor -v
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TI DVFlasher Host Program for DM644x
(C) 2007, Texas Instruments, Inc.
-----------------------------------------------------
Platform is Windows.
Globally erasing NOR flash.
Attempting to connect to device COM1...
Press any key to end this program at any time.
Waiting for DVEVM...
DVEVM: BOOTME
BOOTME commmand received. Returning ACK and header...
ACK command sent. Waiting for BEGIN command...
DVEVM: BEGIN
BEGIN commmand received. Sending CRC table...
CRC table sent. Waiting for DONE...
DVEVM: DONE
DONE received. Sending the UART UBL file...
DVEVM: DONE
DONE received. UART UBL file was accepted.
UART UBL Transmitted successfully.
DVEVM: * * * DDR TESTING * * *
DVEVM: Write to DDR[0] = A55AA55A
DVEVM: Read from DDR[0] = FFFFFFFF
DVEVM: Test DDR Timing Settings... FAILED
DVEVM: TI UBL Version: 1.12, Flash type: NOR
DVEVM: Booting PSP Boot Loader
DVEVM: PSPBootMode = UART
Waiting for UBL on DVEVM...
DVEVM: Starting UART Boot...
DVEVM: BOOTPSP
UBL's BOOTPSP commmand received. Returning CMD and command...
CMD value sent.
DVEVM: NOR Initialization:
DVEVM: Command Set: AMD
DVEVM: Manufacturer: AMD
DVEVM: Size (in bytes): 0x01000000
DVEVM: Erasing the NOR Flash
DVEVM: Erased through 0x02020000
DVEVM: Erased through 0x02040000
DVEVM: Erased through 0x02060000
DVEVM: Erased through 0x02080000
DVEVM: Erased through 0x020A0000
DVEVM: Erased through 0x020C0000
DVEVM: Erased through 0x020E0000
DVEVM: Erased through 0x02100000
DVEVM: Erased through 0x02120000
DVEVM: Erased through 0x02140000
DVEVM: Erased through 0x02160000
DVEVM: Erased through 0x02180000
DVEVM: Erased through 0x021A0000
DVEVM: Erased through 0x021C0000
DVEVM: Erased through 0x021E0000
DVEVM: Erased through 0x02200000
DVEVM: Erased through 0x02220000
DVEVM: Erased through 0x02240000
DVEVM: Erased through 0x02260000
DVEVM: Erased through 0x02280000
DVEVM: Erased through 0x022A0000
DVEVM: Erased through 0x022C0000
DVEVM: Erased through 0x022E0000
DVEVM: Erased through 0x02300000
DVEVM: Erased through 0x02320000
DVEVM: Erased through 0x02340000
DVEVM: Erased through 0x02360000
DVEVM: Erased through 0x02380000
DVEVM: Erased through 0x023A0000
DVEVM: Erased through 0x023C0000
DVEVM: Erased through 0x023E0000
DVEVM: Erased through 0x02400000
DVEVM: Erased through 0x02420000
DVEVM: Erased through 0x02440000
DVEVM: Erased through 0x02460000
DVEVM: Erased through 0x02480000
DVEVM: Erased through 0x024A0000
DVEVM: Erased through 0x024C0000
DVEVM: Erased through 0x024E0000
DVEVM: Erased through 0x02500000
DVEVM: Erased through 0x02520000
DVEVM: Erased through 0x02540000
DVEVM: Erased through 0x02560000
DVEVM: Erased through 0x02580000
DVEVM: Erased through 0x025A0000
DVEVM: Erased through 0x025C0000
DVEVM: Erased through 0x025E0000
DVEVM: Erased through 0x02600000
DVEVM: Erased through 0x02620000
DVEVM: Erased through 0x02640000
DVEVM: Erased through 0x02660000
DVEVM: Erased through 0x02680000
DVEVM: Erased through 0x026A0000
DVEVM: Erased through 0x026C0000
DVEVM: Erased through 0x026E0000
DVEVM: Erased through 0x02700000
DVEVM: Erased through 0x02720000
DVEVM: Erased through 0x02740000
DVEVM: Erased through 0x02760000
DVEVM: Erased through 0x02780000
DVEVM: Erased through 0x027A0000
DVEVM: Erased through 0x027C0000
DVEVM: Erased through 0x027E0000
DVEVM: Erased through 0x02800000
DVEVM: Erased through 0x02820000
DVEVM: Erased through 0x02840000
DVEVM: Erased through 0x02860000
DVEVM: Erased through 0x02880000
DVEVM: Erased through 0x028A0000
DVEVM: Erased through 0x028C0000
DVEVM: Erased through 0x028E0000
DVEVM: Erased through 0x02900000
DVEVM: Erased through 0x02920000
DVEVM: Erased through 0x02940000
DVEVM: Erased through 0x02960000
DVEVM: Erased through 0x02980000
DVEVM: Erased through 0x029A0000
DVEVM: Erased through 0x029C0000
DVEVM: Erased through 0x029E0000
DVEVM: Erased through 0x02A00000
DVEVM: Erased through 0x02A20000
DVEVM: Erased through 0x02A40000
DVEVM: Erased through 0x02A60000
DVEVM: Erased through 0x02A80000
DVEVM: Erased through 0x02AA0000
DVEVM: Erased through 0x02AC0000
DVEVM: Erased through 0x02AE0000
DVEVM: Erased through 0x02B00000
DVEVM: Erased through 0x02B20000
DVEVM: Erased through 0x02B40000
DVEVM: Erased through 0x02B60000
DVEVM: Erased through 0x02B80000
DVEVM: Erased through 0x02BA0000
DVEVM: Erased through 0x02BC0000
DVEVM: Erased through 0x02BE0000
DVEVM: Erased through 0x02C00000
DVEVM: Erased through 0x02C20000
DVEVM: Erased through 0x02C40000
DVEVM: Erased through 0x02C60000
DVEVM: Erased through 0x02C80000
DVEVM: Erased through 0x02CA0000
DVEVM: Erased through 0x02CC0000
DVEVM: Erased through 0x02CE0000
DVEVM: Erased through 0x02D00000
DVEVM: Erased through 0x02D20000
DVEVM: Erased through 0x02D40000
DVEVM: Erased through 0x02D60000
DVEVM: Erased through 0x02D80000
DVEVM: Erased through 0x02DA0000
DVEVM: Erased through 0x02DC0000
DVEVM: Erased through 0x02DE0000
DVEVM: Erased through 0x02E00000
DVEVM: Erased through 0x02E20000
DVEVM: Erased through 0x02E40000
DVEVM: Erased through 0x02E60000
DVEVM: Erased through 0x02E80000
DVEVM: Erased through 0x02EA0000
DVEVM: Erased through 0x02EC0000
DVEVM: Erased through 0x02EE0000
DVEVM: Erased through 0x02F00000
DVEVM: Erased through 0x02F20000
DVEVM: Erased through 0x02F40000
DVEVM: Erased through 0x02F60000
DVEVM: Erased through 0x02F80000
DVEVM: Erased through 0x02FA0000
DVEVM: Erased through 0x02FC0000
DVEVM: Erased through 0x02FE0000
DVEVM: Erased through 0x03000000
DVEVM: Erase Completed
DVEVM: Erase completed successfully.
DVEVM: DONE
Operation completed successfully.
Any thoughts on this issue would be greatly appreciated. Our issue appears to be similar to the issue presented in this post: