112 lines
1.8 KiB
C
112 lines
1.8 KiB
C
#include "dac7311.h"
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int cnum = 0;
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void dac7311_init(void)
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{
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AO1_SYNC_H();
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AO1_SCLK_L();
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AO2_SYNC_H();
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AO2_SCLK_L();
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}
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void ao1_write(uint16_t Data)
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{
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uint16_t temp;
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uint8_t ui;
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temp=Data << 2;
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temp &= 0x3FFF;//设置模式为Normal
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AO1_SYNC_H();
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AO1_SCLK_H();
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delay_tick(10);
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AO1_SYNC_L();//使能输入移位寄存器
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delay_tick(10);
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for(ui=0; ui<16; ui++)
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{
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AO1_SCLK_H();
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if(0x8000 == (temp & 0x8000))
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{
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AO1_DIN_H();
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}
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else
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{
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AO1_DIN_L();
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}
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delay_tick(10);
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AO1_SCLK_L();
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delay_tick(10);
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temp <<=1;
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}
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AO1_SYNC_H();
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}
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void ao2_write(uint16_t Data)
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{
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uint16_t temp;
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uint8_t ui;
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temp=Data << 2;
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temp &= 0x3FFF;//设置模式为Normal
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AO2_SYNC_H();
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AO2_SCLK_H();
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delay_tick(10);
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AO2_SYNC_L();//使能输入移位寄存器
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delay_tick(10);
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for(ui=0; ui<16; ui++)
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{
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AO2_SCLK_H();
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if(0x8000 == (temp & 0x8000))
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{
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AO2_DIN_H();
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}
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else
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{
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AO2_DIN_L();
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}
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delay_tick(10);
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AO2_SCLK_L();
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delay_tick(10);
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temp <<=1;
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}
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AO2_SYNC_H();
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}
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/*******************************************************************************
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函数名称 ： ao1_set
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功 能 ： AO1电流输出
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参 数 ： current--电流值
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返 回 值 ： 无
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*******************************************************************************/
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void ao1_set(float current)
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{
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uint16_t data = 0;
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current = current * 100;//电流转为电压
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data = (current * 4096) / 3300;
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cnum = data;
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ao1_write(data);
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}
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/*******************************************************************************
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函数名称 ： ao2_set
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功 能 ： AO2电流输出
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参 数 ： current--电流值
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返 回 值 ： 无
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*******************************************************************************/
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void ao2_set(float current)
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{
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uint16_t data = 0;
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current = current * 100;//电流转为电压
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data = (current * 4096) / 3300;
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ao2_write(data);
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}
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