stm32/boards/STM32L476DISC: Enable external RTC xtal to get RTC working.
@@ -36,6 +36,9 @@ extern struct _spi_bdev_t spi_bdev;
#define MICROPY_HW_CLK_PLLR (RCC_PLLR_DIV2)
#define MICROPY_HW_CLK_PLLQ (RCC_PLLQ_DIV2)
+// The board has an external 32kHz crystal
+#define MICROPY_HW_RTC_USE_LSE (1)
+
#define MICROPY_HW_FLASH_LATENCY FLASH_LATENCY_4
// USART config
