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bl_mcu_sdk/examples/adc/adc_tsen/main.c

76 lines
2.1 KiB
C

/**
* @file main.c
* @brief
*
* Copyright (c) 2021 Bouffalolab team
*
* 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
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* 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.
*
*/
#include "hal_adc.h"
#include "hal_gpio.h"
adc_channel_t posChList[] = { ADC_CHANNEL_TSEN_P };
adc_channel_t negChList[] = { ADC_CHANNEL_GND };
uint16_t tsen_offset = 0;
struct device *adc_tsen;
int main(void)
{
float sum_val = 0.0;
bflb_platform_init(0);
adc_channel_cfg_t adc_channel_cfg;
adc_channel_cfg.pos_channel = posChList;
adc_channel_cfg.neg_channel = negChList;
adc_channel_cfg.num = 1;
MSG("adc tsen test case \r\n");
adc_register(ADC0_INDEX, "adc_tsen");
adc_tsen = device_find("adc_tsen");
if (adc_tsen) {
ADC_DEV(adc_tsen)->continuous_conv_mode = DISABLE;
device_open(adc_tsen, DEVICE_OFLAG_STREAM_RX);
device_control(adc_tsen, DEVICE_CTRL_ADC_CHANNEL_CONFIG, &adc_channel_cfg);
device_control(adc_tsen, DEVICE_CTRL_ADC_TSEN_ON, NULL);
} else {
MSG("adc device find fail \n");
}
if (adc_trim_tsen(&tsen_offset) == ERROR) {
MSG("read efuse data fail \n");
return ERROR;
} else {
MSG("offset = %d \n", tsen_offset);
}
while (1) {
for (int i = 0; i < 50; i++) {
sum_val += adc_get_tsen(tsen_offset);
bflb_platform_delay_ms(10);
}
MSG("Tsen temp:%0.2f \n", (sum_val / 50.0));
sum_val = 0;
}
}