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adc: add comment for ADC sampling frequency

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Armando
2021-01-05 11:00:05 +08:00
committed by bot
parent d8a4b247b9
commit f9ec7ddda3
4 changed files with 19 additions and 22 deletions
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4
examples/peripherals/adc/adc_dma/main/adc_dma_example_main.c
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@@ -25,10 +25,12 @@ static void continuous_adc_init(uint16_t adc1_chan_mask, uint16_t adc2_chan_mask
assert(ret == ESP_OK);
adc_digi_pattern_table_t adc_pattern[10] = {0};
//Do not set the sampling frequency out of the range between `SOC_ADC_SAMPLE_FREQ_THRES_LOW` and `SOC_ADC_SAMPLE_FREQ_THRES_HIGH`
adc_digi_config_t dig_cfg = {
.conv_limit_en = 0,
.conv_limit_num = 250,
.sample_freq_hz = 83333,
.sample_freq_hz = 620,
};
dig_cfg.adc_pattern_len = channel_num;