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| author | Tobias Ringström <tobias@ringis.se> | 2010-04-30 14:04:14 +0200 |
|---|---|---|
| committer | Øyvind Harboe <oyvind.harboe@zylin.com> | 2010-05-03 11:55:08 +0200 |
| commit | 14f4606dcb0533ab64562406edd157008108e0db (patch) | |
| tree | 20e9140745daa41a978c4f48009aafe599f86545 /src/flash/nor | |
| parent | da9f72ca0a3305cf6f961834dc441496a36c85de (diff) | |
| download | openocd_libswd-14f4606dcb0533ab64562406edd157008108e0db.tar.gz openocd_libswd-14f4606dcb0533ab64562406edd157008108e0db.tar.bz2 openocd_libswd-14f4606dcb0533ab64562406edd157008108e0db.tar.xz openocd_libswd-14f4606dcb0533ab64562406edd157008108e0db.zip | |
STM32 flash erase timeout fix
The current timeout for STM32 flash block erase and flash mass erase is
10 (ms), which is too tight, and fails around 50% of the time for me.
The data sheet for STM32F107VC specifies a maximum erase time of 40 ms
(for both operations).
I'd also consider it a bug that the code does not detect a timeout, but
just assumes that the operation has completed. The attached patch does
not address this bug.
The attached patch increases the timeouts from 10 to 100 ms. Please apply.
/Tobias
Diffstat (limited to 'src/flash/nor')
| -rw-r--r-- | src/flash/nor/stm32x.c | 4 |
1 files changed, 2 insertions, 2 deletions
diff --git a/src/flash/nor/stm32x.c b/src/flash/nor/stm32x.c index 818c474c..0fdd148e 100644 --- a/src/flash/nor/stm32x.c +++ b/src/flash/nor/stm32x.c @@ -331,7 +331,7 @@ static int stm32x_erase(struct flash_bank *bank, int first, int last) target_write_u32(target, STM32_FLASH_AR, bank->base + bank->sectors[i].offset); target_write_u32(target, STM32_FLASH_CR, FLASH_PER | FLASH_STRT); - status = stm32x_wait_status_busy(bank, 10); + status = stm32x_wait_status_busy(bank, 100); if (status & FLASH_WRPRTERR) return ERROR_FLASH_OPERATION_FAILED; @@ -1183,7 +1183,7 @@ static int stm32x_mass_erase(struct flash_bank *bank) target_write_u32(target, STM32_FLASH_CR, FLASH_MER); target_write_u32(target, STM32_FLASH_CR, FLASH_MER | FLASH_STRT); - status = stm32x_wait_status_busy(bank, 10); + status = stm32x_wait_status_busy(bank, 100); target_write_u32(target, STM32_FLASH_CR, FLASH_LOCK); |