2021-04-13 19:23:11 +08:00
|
|
|
/**
|
|
|
|
* @file main.c
|
2021-06-20 12:25:46 +08:00
|
|
|
* @brief
|
|
|
|
*
|
2021-04-13 19:23:11 +08:00
|
|
|
* Copyright (c) 2021 Bouffalolab team
|
2021-06-20 12:25:46 +08:00
|
|
|
*
|
2021-04-13 19:23:11 +08:00
|
|
|
* Licensed to the Apache Software Foundation (ASF) under one or more
|
|
|
|
* contributor license agreements. See the NOTICE file distributed with
|
|
|
|
* this work for additional information regarding copyright ownership. The
|
|
|
|
* ASF licenses this file to you under the Apache License, Version 2.0 (the
|
|
|
|
* "License"); you may not use this file except in compliance with the
|
|
|
|
* License. You may obtain a copy of the License at
|
2021-06-20 12:25:46 +08:00
|
|
|
*
|
2021-04-13 19:23:11 +08:00
|
|
|
* http://www.apache.org/licenses/LICENSE-2.0
|
2021-06-20 12:25:46 +08:00
|
|
|
*
|
2021-04-13 19:23:11 +08:00
|
|
|
* Unless required by applicable law or agreed to in writing, software
|
|
|
|
* distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
|
|
|
|
* WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
|
|
|
|
* License for the specific language governing permissions and limitations
|
|
|
|
* under the License.
|
2021-06-20 12:25:46 +08:00
|
|
|
*
|
2021-04-13 19:23:11 +08:00
|
|
|
*/
|
2021-10-19 20:04:23 +08:00
|
|
|
#include "bflb_platform.h"
|
2021-04-13 19:23:11 +08:00
|
|
|
#include "hal_adc.h"
|
|
|
|
#include "hal_gpio.h"
|
|
|
|
|
|
|
|
#define ADC_SCAN_NUM (50)
|
|
|
|
|
2021-06-20 12:25:46 +08:00
|
|
|
adc_channel_t posChList[] = { ADC_CHANNEL3 };
|
|
|
|
adc_channel_t negChList[] = { ADC_CHANNEL4 };
|
2021-04-13 19:23:11 +08:00
|
|
|
|
2021-06-04 17:51:00 +08:00
|
|
|
adc_channel_val_t result_val;
|
2021-04-13 19:23:11 +08:00
|
|
|
|
2021-06-20 12:25:46 +08:00
|
|
|
struct device *adc_test;
|
2021-04-13 19:23:11 +08:00
|
|
|
|
|
|
|
int main(void)
|
|
|
|
{
|
|
|
|
bflb_platform_init(0);
|
|
|
|
|
2021-06-04 17:51:00 +08:00
|
|
|
adc_channel_cfg_t adc_channel_cfg;
|
2021-04-13 19:23:11 +08:00
|
|
|
|
2021-06-04 17:51:00 +08:00
|
|
|
adc_channel_cfg.pos_channel = posChList;
|
|
|
|
adc_channel_cfg.neg_channel = negChList;
|
|
|
|
adc_channel_cfg.num = 1;
|
2021-04-13 19:23:11 +08:00
|
|
|
|
2021-09-26 13:57:30 +08:00
|
|
|
adc_register(ADC0_INDEX, "adc");
|
2021-04-13 19:23:11 +08:00
|
|
|
|
2021-09-26 13:57:30 +08:00
|
|
|
adc_test = device_find("adc");
|
2021-06-20 12:25:46 +08:00
|
|
|
|
|
|
|
if (adc_test) {
|
2021-06-04 17:51:00 +08:00
|
|
|
ADC_DEV(adc_test)->differential_mode = ENABLE;
|
2021-04-13 19:23:11 +08:00
|
|
|
device_open(adc_test, DEVICE_OFLAG_STREAM_RX);
|
2021-07-06 17:31:23 +08:00
|
|
|
if (device_control(adc_test, DEVICE_CTRL_ADC_CHANNEL_CONFIG, &adc_channel_cfg) == ERROR) {
|
|
|
|
MSG("ADC channel config error , Please check the channel corresponding to IO is initial success by board system or Channel is invaild \r\n");
|
|
|
|
BL_CASE_FAIL;
|
|
|
|
while (1)
|
|
|
|
;
|
|
|
|
}
|
2021-04-13 19:23:11 +08:00
|
|
|
MSG("adc device find success\r\n");
|
|
|
|
}
|
|
|
|
|
2021-06-20 12:25:46 +08:00
|
|
|
for (uint32_t i = 0; i < ADC_SCAN_NUM; i++) {
|
2021-06-04 17:51:00 +08:00
|
|
|
adc_channel_start(adc_test);
|
2021-09-26 13:57:30 +08:00
|
|
|
device_read(adc_test, 0, (void *)&result_val, 1); /*max size is 32*/
|
2021-06-20 12:25:46 +08:00
|
|
|
|
|
|
|
if (result_val.volt <= 0) {
|
2021-04-13 19:23:11 +08:00
|
|
|
result_val.volt = -result_val.volt;
|
2021-06-20 12:25:46 +08:00
|
|
|
MSG("PosId = %d NegId = %d V= -%d mV \r\n", result_val.posChan, result_val.negChan, (uint32_t)(result_val.volt * 1000));
|
|
|
|
} else {
|
|
|
|
MSG("PosId = %d NegId = %d V= %d mV \r\n", result_val.posChan, result_val.negChan, (uint32_t)(result_val.volt * 1000));
|
2021-04-13 19:23:11 +08:00
|
|
|
}
|
2021-06-20 12:25:46 +08:00
|
|
|
|
2021-04-13 19:23:11 +08:00
|
|
|
bflb_platform_delay_ms(500);
|
|
|
|
}
|
|
|
|
|
2021-07-01 19:31:37 +08:00
|
|
|
BL_CASE_SUCCESS;
|
2021-06-20 12:25:46 +08:00
|
|
|
while (1) {
|
2021-07-01 19:31:37 +08:00
|
|
|
bflb_platform_delay_ms(100);
|
2021-04-13 19:23:11 +08:00
|
|
|
}
|
|
|
|
}
|