chain40
31c691c7c5
1. 預設 spi2 為 mode 0, 當 ads8691 初始化完成後, 將 spi2 切為 mode 2 2. 承上, 所以 adc driver 要比 dac driver 更早初始化 3. 將來會將 spi mode 整合 spi transfer, 雖然週邊共用 spi 但是可以每個週邊使用自己的 mode 4. 當調整增益, 更改輸出格式, 切換輸入來源時會把 m_flush_data 設為 1, 在讀 ad 值時會先預讀一次更新量測的結果
35 lines
599 B
C
35 lines
599 B
C
#pragma once
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#ifndef __ADC_DRV_IF_H__
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#define __ADC_DRV_IF_H__
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#include <stdint.h>
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#include <stdlib.h>
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#define ADC0 (0x01 << 0)
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#define ADC1 (0x01 << 1)
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#define ADC2 (0x01 << 2)
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#define ADC3 (0x01 << 3)
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typedef enum
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{
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NP_GAIN_3P000,
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NP_GAIN_2P500,
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NP_GAIN_1P500,
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NP_GAIN_1P250,
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NP_GAIN_0P625,
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P_GAIN_3P000,
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P_GAIN_2P500,
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P_GAIN_1P500,
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P_GAIN_1P250,
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} adc_gain_t;
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typedef struct
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{
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int (*init)(void);
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int (*reset)(void);
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int (*read)(uint32_t channel, int32_t *adc_val);
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int (*gain)(adc_gain_t gain);
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} adc_drv_if_t;
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#endif // !__ADC_DRV_IF_H__
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