add dummy common_hal_mcu_processor_get_voltage() for spresense

dhalbert · dhalbert · commit a0d18ac4e6c7 · 2019-10-15T09:07:12.000-04:00
diff --git a/lib/tinyusb b/lib/tinyusb
@@ -1 +1 @@
-Subproject commit c42edc080cb61d4af8015df6c1d404273b3a5bfa
+Subproject commit e413c9efa303d70de019a91aa415384fe80ca78f
diff --git a/ports/cxd56/common-hal/microcontroller/Processor.c b/ports/cxd56/common-hal/microcontroller/Processor.c
@@ -26,14 +26,20 @@
 
 #include <sys/boardctl.h>
 
+// For NAN: remove when not needed.
+#include <math.h>
 #include "py/mphal.h"
 
 uint32_t common_hal_mcu_processor_get_frequency(void) {
     return mp_hal_ticks_cpu();
 }
 
 float common_hal_mcu_processor_get_temperature(void) {
-    return 0;
+    return NAN;
+}
+
+float common_hal_mcu_processor_get_voltage(void) {
+    return NAN;
 }
 
 void common_hal_mcu_processor_get_uid(uint8_t raw_id[]) {
