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The following commit(s) were added to refs/heads/master by this push:
new 5477f8fed mcu/stm32: Fix hal_nvreg_write for STM32F1
5477f8fed is described below
commit 5477f8fed4ffe0e1fb7efa5aaa13bbead6824b2e
Author: Jerzy Kasenberg <[email protected]>
AuthorDate: Sat Jun 8 16:46:14 2024 +0200
mcu/stm32: Fix hal_nvreg_write for STM32F1
Writing to backup registers requires enabling BPK_CLK.
For read it does not seem to be needed.
Signed-off-by: Jerzy Kasenberg <[email protected]>
---
hw/mcu/stm/stm32_common/src/hal_nvreg.c | 6 ++++++
1 file changed, 6 insertions(+)
diff --git a/hw/mcu/stm/stm32_common/src/hal_nvreg.c
b/hw/mcu/stm/stm32_common/src/hal_nvreg.c
index c2953aa21..82b210745 100644
--- a/hw/mcu/stm/stm32_common/src/hal_nvreg.c
+++ b/hw/mcu/stm/stm32_common/src/hal_nvreg.c
@@ -39,9 +39,15 @@ hal_nvreg_write(unsigned int reg, uint32_t val)
#if PWR_ENABLED
RTC_HandleTypeDef hrtc = { .Instance = RTC };
if (reg < HAL_NVREG_MAX) {
+#if defined(__HAL_RCC_BKP_CLK_ENABLE)
+ __HAL_RCC_BKP_CLK_ENABLE();
+#endif
HAL_PWR_EnableBkUpAccess();
HAL_RTCEx_BKUPWrite(&hrtc, reg, val);
HAL_PWR_DisableBkUpAccess();
+#if defined(__HAL_RCC_BKP_CLK_DISABLE)
+ __HAL_RCC_BKP_CLK_DISABLE();
+#endif
}
#endif
}
