mirror of
https://github.com/Fishwaldo/bl_mcu_sdk.git
synced 2025-07-11 07:18:58 +00:00
d6fab307bf
* Add flash driver and init in boards. * Add timeout for all poll wait apis * Add 808 d0 startup to bringup * Update lhal device tables * Update demos
47 lines
1.1 KiB
C
47 lines
1.1 KiB
C
#include "bflb_adc.h"
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#include "bflb_mtimer.h"
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#include "board.h"
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struct bflb_device_s *adc;
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int main(void)
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{
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board_init();
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adc = bflb_device_get_by_name("adc");
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/* adc clock = XCLK / 2 / 32 */
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struct bflb_adc_config_s cfg;
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cfg.clk_div = ADC_CLK_DIV_32;
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cfg.scan_conv_mode = false;
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cfg.continuous_conv_mode = false;
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cfg.differential_mode = false;
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cfg.resolution = ADC_RESOLUTION_16B;
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cfg.vref = ADC_VREF_3P2V;
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struct bflb_adc_channel_s chan;
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chan.pos_chan = ADC_CHANNEL_VABT_HALF;
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chan.neg_chan = ADC_CHANNEL_GND;
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bflb_adc_init(adc, &cfg);
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bflb_adc_channel_config(adc, &chan, 1);
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bflb_adc_vbat_enable(adc);
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struct bflb_adc_result_s result;
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for (uint16_t i = 0; i < 10; i++) {
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bflb_adc_start_conversion(adc);
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while (bflb_adc_get_count(adc) == 0) {
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bflb_mtimer_delay_ms(1);
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}
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uint32_t raw_data = bflb_adc_read_raw(adc);
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bflb_adc_parse_result(adc, &raw_data, &result, 1);
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printf("vBat = %d mV\r\n", (uint32_t)(result.millivolt * 2));
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bflb_adc_stop_conversion(adc);
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bflb_mtimer_delay_ms(500);
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}
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while (1) {
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}
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}
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