hangpersonal/STM32_Zephyr_RTOS
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Add my_adc/

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hangpersonal committed 2026-10-07 23:18:30 -07:00
1 parent 1deb818d3e
commit a6c62e56d8
1 file changed
+12 -13
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apps/my_adc/src/main.c
+12 -13
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@@ -6,9 +6,8 @@
#include <zephyr/drivers/adc.h> #include <zephyr/drivers/adc.h>
#include <zephyr/sys/printk.h> #include <zephyr/sys/printk.h>
#define MY_ADC_NODE DT_ALIAS(myadc) #define MY_ADC_NODE DT_ALIAS(myadc)
#define MY_ADC_CH_NODE DT_CHILD(MY_ADC_NODE, channel_3) #define MY_ADC_CH_NODE DT_CHILD(MY_ADC_NODE, channel_3)
#define MY_ADC_CHANNEL_ID DT_REG_ADDR(MY_ADC_CH_NODE)
static const struct device *const adc_dev = static const struct device *const adc_dev =
DEVICE_DT_GET(MY_ADC_NODE); DEVICE_DT_GET(MY_ADC_NODE);
@@ -16,18 +15,18 @@ static const struct device *const adc_dev =
static const struct adc_channel_cfg ch_cfg = static const struct adc_channel_cfg ch_cfg =
ADC_CHANNEL_CFG_DT(MY_ADC_CH_NODE); ADC_CHANNEL_CFG_DT(MY_ADC_CH_NODE);
static uint16_t sample;
static struct adc_sequence seq = {
.channels = BIT(MY_ADC_CHANNEL_ID),
.buffer = &sample,
.buffer_size = sizeof(sample),
.resolution = DT_PROP_OR(MY_ADC_CH_NODE, zephyr_resolution, 12),
};
int main(void) { int main(void) {
int err; int err;
uint16_t sample;
struct adc_sequence seq = {
.channels = BIT(ch_cfg.channel_id),
.buffer = &sample,
.buffer_size = sizeof(sample),
// .resolution = DT_PROP(MY_ADC_CH_NODE, zephyr_resolution),
.resolution = DT_PROP_OR(MY_ADC_CH_NODE, zephyr_resolution, 12),
};
if (!device_is_ready(adc_dev)) { if (!device_is_ready(adc_dev)) {
printk("ADC device not ready\n"); printk("ADC device not ready\n");
@@ -40,7 +39,7 @@ int main(void) {
return 0; return 0;
} }
printk("Reading ADC1 channel 3 on PA3 (Arduino A0)\n"); printk("Reading ADC1 channel 3 on PA3\n");
while (1) { while (1) {
int32_t val_mv; int32_t val_mv;