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stlink-org / stlink

Open source STM32 MCU programming toolset
BSD 3-Clause "New" or "Revised" License
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[STM32H743/753]: Cannot write to area at 0x0810_0000, but can at 0x0800_0000 #1146

Closed rcordeau closed 3 years ago

rcordeau commented 3 years ago

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Commandline output: Good output @ 0x0800_0000 st-flash --reset write ~/fcc.bin 0x08000000 st-flash 1.7.0 2021-05-27T00:29:24 INFO common.c: H74x/H75x: 128 KiB SRAM, 2048 KiB flash in at least 128 KiB pages. file /Users/rcordeau/fcc.bin md5 checksum: c951e84957504eb54c2e2e73c5bb77c, stlink checksum: 0x0133d67c 2021-05-27T00:29:24 INFO common.c: Attempting to write 223904 (0x36aa0) bytes to stm32 address: 134217728 (0x8000000) 2021-05-27T00:29:25 INFO common.c: Flash page at addr: 0x08000000 erased 2021-05-27T00:29:25 INFO common.c: Flash page at addr: 0x08020000 erased 2021-05-27T00:29:25 INFO common.c: Finished erasing 2 pages of 131072 (0x20000) bytes 2021-05-27T00:29:25 INFO common.c: Starting Flash write for H7 223904/223904 bytes written 2021-05-27T00:29:30 INFO common.c: Starting verification of write complete 2021-05-27T00:29:32 INFO common.c: Flash written and verified! jolly good! 2021-05-27T00:29:32 WARN common.c: NRST is not connected

Bad output @ 0x0810_0000 st-flash --reset write ~/fcc.bin 0x08100000 st-flash 1.7.0 2021-05-27T00:30:58 INFO common.c: H74x/H75x: 128 KiB SRAM, 2048 KiB flash in at least 128 KiB pages. file /Users/rcordeau/fcc.bin md5 checksum: c951e84957504eb54c2e2e73c5bb77c, stlink checksum: 0x0133d67c 2021-05-27T00:30:58 INFO common.c: Attempting to write 223904 (0x36aa0) bytes to stm32 address: 135266304 (0x8100000) 2021-05-27T00:30:58 INFO common.c: Flash page at addr: 0x08100000 erased 2021-05-27T00:30:58 INFO common.c: Flash page at addr: 0x08120000 erased 2021-05-27T00:30:58 INFO common.c: Finished erasing 2 pages of 131072 (0x20000) bytes 2021-05-27T00:30:58 INFO common.c: Starting Flash write for H7 223904/223904 bytes written 2021-05-27T00:31:03 INFO common.c: Starting verification of write complete 2021-05-27T00:31:03 ERROR common.c: Verification of flash failed at offset: 0 stlink_fwrite_flash() == -1

OUTPUT/ERROR of the commandline tool(s)

The official STM32Programmer works fine. If I write the same file to 0x080e0000, it half-verifies. The portion starting at 0x08100000 reads back all F's.

When writing to 0x08000000, the debug output when writing shows (making it a short example): 214400/223904 bytes written2021-05-27T00:18:39 DEBUG common.c: stlink_write_mem32 64 bytes to 0x8034580 2021-05-27T00:18:39 DEBUG common.c: stlink_read_debug32 0x00010000 at 0x52002010

When writing to 0x08100000, the debug output when writing shows (making it a short example): 214400/223904 bytes written2021-05-27T00:17:06 DEBUG common.c: stlink_write_mem32 64 bytes to 0x8134580 2021-05-27T00:17:06 DEBUG common.c: stlink_read_debug32 0000000000 at 0x52002010

Ant-ON commented 3 years ago

@rcordeau When writing to the second bank, the FLASH_SR2 register (0x52002110) instead the FLASH_SR register (0x52002010) is use. Can you attach complete logs?

rcordeau commented 3 years ago

flashlog_08100000.txt Sure thing. This is the log that shows it erroring out when writing to 0x08100000

rcordeau commented 3 years ago

This is another error log when writing to 0x080e0000, which would cross into the 0x08100000 page. flashwrite_080e0000.txt

Ant-ON commented 3 years ago

@rcordeau Thanks for the logs! I seem to have found the problem. Could you check out https://github.com/Ant-ON/stlink/tree/h7_db_fix branch?

rcordeau commented 3 years ago

Hi @Ant-ON, yep, this fixed it! Thanks!