altos/telelco-v2.0: Display local batt voltage at startup

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

diff --git a/src/telelco-v2.0/ao_pins.h b/src/telelco-v2.0/ao_pins.h
index 73ce9d6c80237517c1f7d12c88faa605f62e475e..4311bac87178625eeddbbf0d30ad9a46551fecd7 100644 (file)
--- a/src/telelco-v2.0/ao_pins.h
+++ b/src/telelco-v2.0/ao_pins.h
@@ -357,4 +357,40 @@
 #define AO_BUTTON_8_PORT       &stm_gpioe
 #define AO_BUTTON_8            13
 
+/* ADC */
+
+struct ao_adc {
+       int16_t         v_batt;
+};
+
+#define AO_ADC_DUMP(p) \
+       printf("batt: %5d\n", p.v_batt)
+
+#define HAS_ADC_TEMP           0
+#define HAS_BATTERY_REPORT     1
+
+#define AO_ADC_V_BATT          0
+#define AO_ADC_V_BATT_PORT     (&stm_gpioa)
+#define AO_ADC_V_BATT_PIN      0
+
+#define AO_ADC_RCC_AHBENR      (1 << STM_RCC_AHBENR_GPIOAEN)
+
+#define AO_ADC_PIN0_PORT       AO_ADC_V_BATT_PORT
+#define AO_ADC_PIN0_PIN                AO_ADC_V_BATT_PIN
+
+#define AO_ADC_SQ1             AO_ADC_V_BATT
+
+#define AO_NUM_ADC             1
+
+/*
+ * Voltage divider on ADC battery sampler
+ */
+#define AO_BATTERY_DIV_PLUS    15      /* 15k */
+#define AO_BATTERY_DIV_MINUS   27      /* 27k */
+
+/*
+ * ADC reference in decivolts
+ */
+#define AO_ADC_REFERENCE_DV    33
+
 #endif /* _AO_PINS_H_ */