嗯, 我用ad77xx都在前面加个宏:
#define _dl(x) do { x; _delay_ms_loop(1); } while(0)

然后把ad77xx的配置函数都用_dl()包起来, 如下:

ps. 为啥还用ad7705, 有啥非用它不可的理由呢... ad7792/7793/7799的性价比高多了吧

void ADC_Config(void)
{
    static ad7124_cfg_t cfg;
    cfg.readwrite_f = SPI2_ReadWrite;

    _dl(ad7124_init(&cfg));
    _dl(ad7124_set_data_status(AD7124_DATA_STATUS_ON));
    _dl(ad7124_set_iref(AD7124_DISABLE));
    _dl(ad7124_set_pwr_mode(AD7124_PWR_MODE_FULL));
    for(int ain = AD7124_AIN0; ain <= AD7124_AIN15; ain++) {
        _dl(ad7124_vbias_set(ain, AD7124_DISABLE));
    }
    // config
    _dl(ad7124_set_config_polarity(AD7124_CONFIG0, AD7124_BIPOLAR));
    _dl(ad7124_set_config_burnout(AD7124_CONFIG0, AD7124_BURNOUT_CURR_OFF));
    _dl(ad7124_set_config_buffer(AD7124_CONFIG0, AD7124_ENABLE, AD7124_ENABLE,
        AD7124_ENABLE, AD7124_ENABLE));
    _dl(ad7124_set_config_ref(AD7124_CONFIG0, AD7124_REF_REFIN1));
    _dl(ad7124_set_config_gain(AD7124_CONFIG0, AD7124_GAIN_1X));
    _dl(ad7124_set_filter_type(AD7124_FILTER0, AD7124_FILTER_SINC4));
    _dl(ad7124_set_filter_rej60(AD7124_FILTER0, AD7124_ENABLE));
    _dl(ad7124_set_filter_data_rate(AD7124_FILTER0, 10));
// channel config
    for(int chan = AD7124_CHANNEL0; chan <= AD7124_CHANNEL7; chan++) {
        _dl(ad7124_set_channel_state(chan, AD7124_ENABLE));
        _dl(ad7124_set_channel_config(chan, AD7124_CONFIG0));
    }
    _dl(ad7124_set_channel_ain(AD7124_CHANNEL0, AD7124_AIN0, AD7124_AIN1));
    _dl(ad7124_set_channel_ain(AD7124_CHANNEL1, AD7124_AIN2, AD7124_AIN3));
    _dl(ad7124_set_channel_ain(AD7124_CHANNEL2, AD7124_AIN4, AD7124_AIN5));
    _dl(ad7124_set_channel_ain(AD7124_CHANNEL3, AD7124_AIN6, AD7124_AIN7));
    _dl(ad7124_set_channel_ain(AD7124_CHANNEL4, AD7124_AIN8, AD7124_AIN9));
    _dl(ad7124_set_channel_ain(AD7124_CHANNEL5, AD7124_AIN10, AD7124_AIN11));
    _dl(ad7124_set_channel_ain(AD7124_CHANNEL6, AD7124_AIN12, AD7124_AIN13));
    _dl(ad7124_set_channel_ain(AD7124_CHANNEL7, AD7124_AIN14, AD7124_AIN15));
//    do_calibrate();

// last one
    _dl(ad7124_set_mode(AD7124_MODE_CONTINUOUS_CONV));
}

【 在 lanmp (-_-！谁的大腿) 的大作中提到: 】

【 在 teslasoft 的大作中提到: 】
: 统一跟大家汇报一下最新进展
: 软件突然拍脑袋，在ad芯片初始化之前加了100毫秒的delay，居然故障现象消失了。。。消失了。。。好吧，等下一步再批量测试看看结果。目前猜一下，可能就是ad芯片上电后，要等它睡醒了，伸个懒腰才能初始化。
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