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[beken-72xx] Improve ddev ADC support #220

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merged 2 commits into from
Jan 6, 2024
Merged

[beken-72xx] Improve ddev ADC support #220

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d6bba67
Various fixes for ADC
szupi-ipuzs Dec 8, 2023
e8c2666
Merge branch 'libretiny-eu:master' into adc_fix
szupi-ipuzs Dec 16, 2023
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12 changes: 10 additions & 2 deletions cores/beken-72xx/arduino/src/wiring_analog.c
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Original file line number Diff line number Diff line change
Expand Up @@ -65,13 +65,21 @@ uint16_t analogReadVoltage(pin_size_t pinNumber) {
adc.pData = adcData;
adc.data_buff_size = 1;
handle = ddev_open(SARADC_DEV_NAME, &status, (uint32_t)&adc);
if (status)
if (handle == -1) {
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return 0;
}

if (status != SARADC_SUCCESS) {
ddev_close(handle);
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return 0;
}

// wait for data
while (!adc.has_data || adc.current_sample_data_cnt < 1) {
delay(1);
}
ddev_control(handle, SARADC_CMD_RUN_OR_STOP_ADC, (void *)false);
uint8_t run_stop = 0; // stop
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ddev_control(handle, SARADC_CMD_RUN_OR_STOP_ADC, &run_stop);
ddev_close(handle);
return adcData[0];
}
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