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authorDamien George2019-10-04 16:03:37 +1000
committerDamien George2019-10-04 16:10:13 +1000
commit26e90a051415629796efbec59f1d653b46e43aea (patch)
treeee26e99207786b0c25b0ca0b90a2d3cfd4ae5f95 /ports/stm32/boards/B_L475E_IOT01A
parent266146ad643b408a307676e320ffb22e0fe1e0ad (diff)
stm32/boards: Enable MICROPY_HW_RTC_USE_LSE on L4 boards.
The previous commit changed the default configuration on L4 MCUs to use LSI, so configure these boards to use LSE again.
Diffstat (limited to 'ports/stm32/boards/B_L475E_IOT01A')
-rw-r--r--ports/stm32/boards/B_L475E_IOT01A/mpconfigboard.h4
1 files changed, 3 insertions, 1 deletions
diff --git a/ports/stm32/boards/B_L475E_IOT01A/mpconfigboard.h b/ports/stm32/boards/B_L475E_IOT01A/mpconfigboard.h
index 3ab3d5fa1..a88bcf675 100644
--- a/ports/stm32/boards/B_L475E_IOT01A/mpconfigboard.h
+++ b/ports/stm32/boards/B_L475E_IOT01A/mpconfigboard.h
@@ -12,9 +12,11 @@
#define MICROPY_HW_CLK_PLLP (RCC_PLLP_DIV7)
#define MICROPY_HW_CLK_PLLR (RCC_PLLR_DIV2)
#define MICROPY_HW_CLK_PLLQ (RCC_PLLQ_DIV4)
-
#define MICROPY_HW_FLASH_LATENCY FLASH_LATENCY_4
+// The board has an external 32kHz crystal
+#define MICROPY_HW_RTC_USE_LSE (1)
+
// USART1 config connected to ST-Link
#define MICROPY_HW_UART1_TX (pin_B6)
#define MICROPY_HW_UART1_RX (pin_B7)