34 lines
1.2 KiB
C
34 lines
1.2 KiB
C
#pragma once
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// C3 C2 C1 C0
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#define LTC_WRITE 0b00000000 // 0 0 0 0 Write to Input Register
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#define LTC_UPDATE 0b00010000 // 0 0 0 1 Update (Power Up) DAC Register
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#define LTC_WRTIEUPDATE 0b00110000 // 0 0 1 1 Write to and Update (Power Up) DAC Register
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#define LTC_SLEEP 0b01000000 // 0 1 0 0 Power Down
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#define LTC_INTERNALREF 0b01100000 // 0 1 1 0 Select Internal Reference
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#define LTC_EXTERNALREF 0b01110000 // 0 1 1 1 Select External Reference
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#define LTC_REF_2V5 2.5
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#define LTC_REF_4V096 4.096
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typedef enum
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{
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LTC2631_8BIT = 8,
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LTC2631_10BIT = 10,
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LTC2631_12BIT = 12
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} ltc2631_res_t;
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typedef struct
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{
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I2C_HandleTypeDef *hi2c;
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uint8_t addr;
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ltc2631_res_t resolution;
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float ref_voltage_f;
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uint32_t ref_voltage_u;
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} ltc2631_handle_t;
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void ltc2631_init(ltc2631_handle_t *hdac, I2C_HandleTypeDef *hi2c, uint8_t addr, ltc2631_res_t res, float ref);
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void ltc2631_setOutputVoltage_f(ltc2631_handle_t *hdac, float volt);
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void ltc2631_setOutputVoltage_u(ltc2631_handle_t *hdac, uint32_t volt_x1000);
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void ltc2631_setOutputValue(ltc2631_handle_t *hdac, uint16_t value);
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void ltc2631_sleep(ltc2631_handle_t *hdac); |