bl_mcu_sdk/examples/peripherals/adc/adc_int/main.c
jzlv d6fab307bf [update] update lhal, soc and demos
* 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
2022-11-18 16:30:00 +08:00

137 lines
3.8 KiB
C

#include "bflb_adc.h"
#include "bflb_mtimer.h"
#include "board.h"
struct bflb_device_s *adc;
#define TEST_ADC_CHANNEL_0 1
#define TEST_ADC_CHANNEL_1 1
#define TEST_ADC_CHANNEL_2 1
#define TEST_ADC_CHANNEL_3 1
#define TEST_ADC_CHANNEL_4 1
#define TEST_ADC_CHANNEL_5 1
#define TEST_ADC_CHANNEL_6 1
#define TEST_ADC_CHANNEL_7 1
#define TEST_ADC_CHANNEL_8 1
#define TEST_ADC_CHANNEL_9 1
#define TEST_ADC_CHANNEL_10 1
#define TEST_ADC_CHANNELS (TEST_ADC_CHANNEL_0 + \
TEST_ADC_CHANNEL_1 + \
TEST_ADC_CHANNEL_2 + \
TEST_ADC_CHANNEL_3 + \
TEST_ADC_CHANNEL_4 + \
TEST_ADC_CHANNEL_5 + \
TEST_ADC_CHANNEL_6 + \
TEST_ADC_CHANNEL_7 + \
TEST_ADC_CHANNEL_8 + \
TEST_ADC_CHANNEL_9 + \
TEST_ADC_CHANNEL_10)
#define TEST_COUNT 10
struct bflb_adc_channel_s chan[] = {
#if TEST_ADC_CHANNEL_0
{ .pos_chan = ADC_CHANNEL_0,
.neg_chan = ADC_CHANNEL_GND },
#endif
#if TEST_ADC_CHANNEL_1
{ .pos_chan = ADC_CHANNEL_1,
.neg_chan = ADC_CHANNEL_GND },
#endif
#if TEST_ADC_CHANNEL_2
{ .pos_chan = ADC_CHANNEL_2,
.neg_chan = ADC_CHANNEL_GND },
#endif
#if TEST_ADC_CHANNEL_3
{ .pos_chan = ADC_CHANNEL_3,
.neg_chan = ADC_CHANNEL_GND },
#endif
#if TEST_ADC_CHANNEL_4
{ .pos_chan = ADC_CHANNEL_4,
.neg_chan = ADC_CHANNEL_GND },
#endif
#if TEST_ADC_CHANNEL_5
{ .pos_chan = ADC_CHANNEL_5,
.neg_chan = ADC_CHANNEL_GND },
#endif
#if TEST_ADC_CHANNEL_6
{ .pos_chan = ADC_CHANNEL_6,
.neg_chan = ADC_CHANNEL_GND },
#endif
#if TEST_ADC_CHANNEL_7
{ .pos_chan = ADC_CHANNEL_7,
.neg_chan = ADC_CHANNEL_GND },
#endif
#if TEST_ADC_CHANNEL_8
{ .pos_chan = ADC_CHANNEL_8,
.neg_chan = ADC_CHANNEL_GND },
#endif
#if TEST_ADC_CHANNEL_9
{ .pos_chan = ADC_CHANNEL_9,
.neg_chan = ADC_CHANNEL_GND },
#endif
#if TEST_ADC_CHANNEL_10
{ .pos_chan = ADC_CHANNEL_10,
.neg_chan = ADC_CHANNEL_GND },
#endif
};
volatile uint32_t raw_data[TEST_ADC_CHANNELS];
volatile uint8_t read_count = 0;
void adc_isr(int irq, void *arg)
{
uint32_t intstatus = bflb_adc_get_intstatus(adc);
if (intstatus & ADC_INTSTS_ADC_READY) {
bflb_adc_int_clear(adc, ADC_INTCLR_ADC_READY);
uint8_t count = bflb_adc_get_count(adc);
for (size_t i = 0; i < count; i++) {
raw_data[read_count] = bflb_adc_read_raw(adc);
read_count++;
}
}
}
int main(void)
{
board_init();
board_adc_gpio_init();
adc = bflb_device_get_by_name("adc");
/* adc clock = XCLK / 2 / 32 */
struct bflb_adc_config_s cfg;
cfg.clk_div = ADC_CLK_DIV_32;
cfg.scan_conv_mode = true;
cfg.continuous_conv_mode = false;
cfg.differential_mode = false;
cfg.resolution = ADC_RESOLUTION_16B;
cfg.vref = ADC_VREF_3P2V;
bflb_adc_init(adc, &cfg);
bflb_adc_channel_config(adc, chan, TEST_ADC_CHANNELS);
bflb_adc_rxint_mask(adc, false);
bflb_irq_attach(adc->irq_num, adc_isr, NULL);
bflb_irq_enable(adc->irq_num);
for (size_t i = 0; i < TEST_COUNT; i++) {
read_count = 0;
bflb_adc_start_conversion(adc);
while (read_count < TEST_ADC_CHANNELS) {
bflb_mtimer_delay_ms(1);
}
for (size_t j = 0; j < TEST_ADC_CHANNELS; j++) {
struct bflb_adc_result_s result;
printf("raw data:%08x\r\n", raw_data[j]);
bflb_adc_parse_result(adc, (uint32_t *)&raw_data[j], &result, 1);
printf("pos chan %d,%d mv \r\n", result.pos_chan, result.millivolt);
}
bflb_adc_stop_conversion(adc);
bflb_mtimer_delay_ms(100);
}
while (1) {
}
}