esp32/adc: Raise error if ADC read result is invalid.

DvdGiessen · dpgeorge · commit b6bc2d473c17 · 2026-04-07T14:57:36.000+10:00
Signed-off-by: Daniël van de Giessen &lt;daniel@dvdgiessen.nl&gt;
diff --git a/ports/esp32/adc.c b/ports/esp32/adc.c
@@ -54,7 +54,7 @@ mp_int_t madcblock_read_helper(machine_adc_block_obj_t *self, adc_channel_t chan
     adc_is_init_guard(self);
 
     int reading = 0;
-    adc_oneshot_read(self->handle, channel_id, &reading);
+    check_esp_err(adc_oneshot_read(self->handle, channel_id, &reading));
     return reading;
 }
 

Original file line number	Diff line number	Diff line change
`@@ -54,7 +54,7 @@ mp_int_t madcblock_read_helper(machine_adc_block_obj_t *self, adc_channel_t chan`
`54`	`54`	`adc_is_init_guard(self);`
`55`	`55`
`56`	`56`	`int reading = 0;`
`57`		`- adc_oneshot_read(self->handle, channel_id, &reading);`
	`57`	`+ check_esp_err(adc_oneshot_read(self->handle, channel_id, &reading));`
`58`	`58`	`return reading;`
`59`	`59`	`}`
`60`	`60`