use rtc for timing

1 files changed, 6 insertions, 6 deletions

diff --git a/cfg/mcuconf.h b/cfg/mcuconf.h
index 217d13f..96e9080 100644
--- a/cfg/mcuconf.h
+++ b/cfg/mcuconf.h
@@ -44,22 +44,22 @@
 #define STM32_PLS                           STM32_PLS_LEV4

 #define STM32_HSI16_ENABLED                 TRUE

 #define STM32_HSI16_DIVIDER_ENABLED         FALSE

-#define STM32_LSI_ENABLED                   FALSE

+#define STM32_LSI_ENABLED                   TRUE

 #define STM32_HSE_ENABLED                   FALSE

 #define STM32_LSE_ENABLED                   FALSE

 #define STM32_ADC_CLOCK_ENABLED             TRUE

 #define STM32_MSIRANGE                      STM32_MSIRANGE_4M

 #define STM32_SW                            STM32_SW_MSI

-#define STM32_PLLSRC                        STM32_PLLSRC_HSI16

-#define STM32_PLLMUL_VALUE                  3

-#define STM32_PLLDIV_VALUE                  4

+#define STM32_PLLSRC                        STM32_PLLSRC_NONE

+#define STM32_PLLMUL_VALUE                  1

+#define STM32_PLLDIV_VALUE                  8

 #define STM32_HPRE                          STM32_HPRE_DIV1

 #define STM32_PPRE1                         STM32_PPRE1_DIV1

 #define STM32_PPRE2                         STM32_PPRE2_DIV1

 #define STM32_MCOSEL                        STM32_MCOSEL_NOCLOCK

 #define STM32_MCOPRE                        STM32_MCOPRE_DIV1

-#define STM32_RTCSEL                        STM32_RTCSEL_NOCLOCK

-#define STM32_RTCPRE                        STM32_RTCPRE_DIV2

+#define STM32_RTCSEL                        STM32_RTCSEL_LSI // ~37kHz

+#define STM32_RTCPRE                        STM32_RTCPRE_DIV2 // HSE only!

 #define STM32_USART2SEL                     STM32_USART2SEL_APB

 #define STM32_LPUART1SEL                    STM32_LPUART1SEL_APB

 #define STM32_I2C1SEL                       STM32_I2C1SEL_APB