altos/micropeak-v2.0: Reduce power usage

[fw/altos] / src / micropeak-v2.0 / ao_pins.h

diff --git a/src/micropeak-v2.0/ao_pins.h b/src/micropeak-v2.0/ao_pins.h
index 9dba26bd718fe0bc28e1fe3737f4251524fa542a..d3bd22814a46f0264669237de7c06bf2beb87efb 100644 (file)
--- a/src/micropeak-v2.0/ao_pins.h
+++ b/src/micropeak-v2.0/ao_pins.h
@@ -43,8 +43,8 @@ extern uint8_t ao_on_battery;
 #define AO_RCC_CFGR_HPRE_DIV   (ao_on_battery ? STM_RCC_CFGR_HPRE_DIV_16 : STM_RCC_CFGR_HPRE_DIV_1)
 
 /* APB = 12MHz usb / 2MHz battery */
-#define AO_APB_PRESCALER       1
-#define AO_RCC_CFGR_PPRE_DIV   STM_RCC_CFGR_PPRE_DIV_1
+#define AO_APB_PRESCALER       (ao_on_battery ? 2 : 1)
+#define AO_RCC_CFGR_PPRE_DIV   (ao_on_battery ? STM_RCC_CFGR_PPRE_DIV_2 : STM_RCC_CFGR_PPRE_DIV_1)
 
 #define HAS_USB                        1
 #define AO_PA11_PA12_RMP       1
@@ -86,6 +86,7 @@ extern uint8_t ao_on_battery;
 
 /* SPI */
 #define HAS_SPI_1              1
+#define SPI_1_POWER_MANAGE     1
 #define SPI_1_PA5_PA6_PA7      1
 #define SPI_1_PB3_PB4_PB5      0
 #define SPI_1_OSPEEDR          STM_OSPEEDR_MEDIUM
@@ -128,9 +129,11 @@ void ao_delay_until(uint16_t target);
 #define ao_async_stop() do {                                   \
                ao_serial2_drain();                             \
                stm_moder_set(&stm_gpioa, 2, STM_MODER_OUTPUT); \
+               ao_serial_shutdown();                           \
        } while (0)
 
 #define ao_async_start() do {                                          \
+               ao_serial_init();                                       \
                stm_moder_set(&stm_gpioa, 2, STM_MODER_ALTERNATE);      \
                ao_delay(AO_MS_TO_TICKS(100));                          \
        } while (0)