82 lines
1.7 KiB
C
82 lines
1.7 KiB
C
#include "ad5303.h"
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void ad5303_init(ad5303_handle_t *hdac, SPI_HandleTypeDef *hspi, cs_handle_t *hcs, ad5303_res_t res)
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{
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hdac->hspi = hspi;
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hdac->hcs = hcs;
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hdac->res = res;
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ad5303_gain(hdac, AD_GAIN_X1);
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ad5303_mode(hdac, AD_NORAMAL);
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ad5303_set_value(hdac, 0, AD_DAC1);
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ad5303_set_value(hdac, 0, AD_DAC2);
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}
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void ad5303_set_value(ad5303_handle_t *hdac, uint16_t value, ad5303_dac_t dac)
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{
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uint16_t data;
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uint8_t data8;
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switch (dac)
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{
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case AD_DAC1:
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hdac->_regCtl &= ~(1 << 15);
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break;
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case AD_DAC2:
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hdac->_regCtl |= (1 << 15);
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break;
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default:
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break;
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}
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data = hdac->_regCtl | (value << hdac->res);
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hdac->hcs->cs_on(hdac->hcs);
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data8 = (uint8_t)((data >> 8) & 0x00FF);
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HAL_SPI_Transmit(hdac->hspi, &data8, 1, HAL_MAX_DELAY);
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data8 = (uint8_t)(data & 0x00FF);
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HAL_SPI_Transmit(hdac->hspi, &data8, 1, HAL_MAX_DELAY);
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hdac->hcs->cs_off(hdac->hcs);
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}
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void ad5303_mode(ad5303_handle_t *hdac, ad5303_mode_t mode)
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{
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switch (mode)
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{
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case AD_NORAMAL:
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hdac->_regCtl &= ~(11 << 12);
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break;
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case AD_LOWZ:
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hdac->_regCtl |= (1 << 12);
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hdac->_regCtl &= ~(1 << 13);
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break;
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case AD_HIGHZ:
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hdac->_regCtl &= ~(1 << 12);
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hdac->_regCtl |= (1 << 13);
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break;
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case AD_OFF:
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hdac->_regCtl |= (11 << 12);
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break;
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default:
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break;
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}
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}
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void ad5303_gain(ad5303_handle_t *hdac, ad5303_gain_t gain)
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{
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switch (gain)
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{
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case AD_GAIN_X1:
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hdac->_regCtl &= ~(1 << 14);
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break;
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case AD_GAIN_X2:
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hdac->_regCtl |= (1 << 14);
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break;
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default:
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break;
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}
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}
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