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| author | Alex Voinea <voinea.dragos.alexandru@gmail.com> | 2022-12-09 19:09:23 +0100 |
|---|---|---|
| committer | KevinOConnor <kevin@koconnor.net> | 2022-12-11 20:09:50 -0500 |
| commit | c7f323e863eb73f3f50e28729b04f302bf8e3c6a (patch) | |
| tree | 7549b7048f3bc2639166554f50938b6a5f7d4ecd /src/stm32 | |
| parent | 09725617831bf4a1379e90edf47ab11434279f88 (diff) | |
| download | kutter-c7f323e863eb73f3f50e28729b04f302bf8e3c6a.tar.gz kutter-c7f323e863eb73f3f50e28729b04f302bf8e3c6a.tar.xz kutter-c7f323e863eb73f3f50e28729b04f302bf8e3c6a.zip | |
stm32g0: Do not disable SWD by accident
Keep SWEN as 1 in FLASH->ACR register such
that the SWD interface doesn't get disabled.
Signed-off-by: Alex Voinea <voinea.dragos.alexandru@gmail.com>
Diffstat (limited to 'src/stm32')
| -rw-r--r-- | src/stm32/stm32g0.c | 7 |
1 files changed, 5 insertions, 2 deletions
diff --git a/src/stm32/stm32g0.c b/src/stm32/stm32g0.c index c243743b..244e00d9 100644 --- a/src/stm32/stm32g0.c +++ b/src/stm32/stm32g0.c @@ -183,8 +183,11 @@ armcm_main(void) check_usb_dfu_bootloader(); - // Set flash latency - FLASH->ACR = (2<<FLASH_ACR_LATENCY_Pos) | FLASH_ACR_ICEN | FLASH_ACR_PRFTEN; + // Set flash latency, cache and prefetch; use reset value as base + uint32_t acr = 0x00040600; + acr = (acr & ~FLASH_ACR_LATENCY) | (2<<FLASH_ACR_LATENCY_Pos); + acr |= FLASH_ACR_ICEN | FLASH_ACR_PRFTEN; + FLASH->ACR = acr; // Configure main clock clock_setup(); |