116 lines
2.3 KiB
C
116 lines
2.3 KiB
C
#include "dac7311.h"
|
||
|
||
int cnum = 0;
|
||
|
||
void dac7311_init(void)
|
||
{
|
||
AO_DWQ_SYNC(1);
|
||
AO_BLF_SYNC1(1);
|
||
AO_BLF_SYNC2(1);
|
||
AO_DWQ_SCLK(0);
|
||
AO_BLF_SCLK(0);
|
||
}
|
||
|
||
void ao_write(uint16_t Data,uint8_t chip_select)
|
||
{
|
||
uint16_t temp;
|
||
uint8_t ui;
|
||
|
||
temp=Data << 2;
|
||
temp &= 0x3FFF;//设置模式为Normal
|
||
|
||
if(chip_select == AO_DWQ)
|
||
{
|
||
AO_DWQ_SYNC(1);
|
||
AO_DWQ_SCLK(1);
|
||
delay_tick(10);
|
||
AO_DWQ_SYNC(0);
|
||
delay_tick(10);
|
||
}
|
||
else if(chip_select == AO_BLF1)
|
||
{
|
||
AO_BLF_SYNC1(1);
|
||
AO_BLF_SCLK(1);
|
||
delay_tick(10);
|
||
AO_BLF_SYNC1(0);
|
||
delay_tick(10);
|
||
}
|
||
else if(chip_select == AO_BLF2)
|
||
{
|
||
AO_BLF_SYNC2(1);
|
||
AO_BLF_SCLK(1);
|
||
delay_tick(10);
|
||
AO_BLF_SYNC2(0);
|
||
delay_tick(10);
|
||
}
|
||
|
||
for(ui=0; ui<16; ui++)
|
||
{
|
||
|
||
AO_DWQ_SCLK(1);
|
||
AO_BLF_SCLK(1);
|
||
if(0x8000 == (temp & 0x8000))
|
||
{
|
||
AO_DWQ_DIN(1);
|
||
AO_BLF_DIN(1);
|
||
}
|
||
else
|
||
{
|
||
AO_DWQ_DIN(0);
|
||
AO_BLF_DIN(0);
|
||
}
|
||
delay_tick(10);
|
||
AO_DWQ_SCLK(0);
|
||
AO_BLF_SCLK(0);
|
||
delay_tick(10);
|
||
temp <<=1;
|
||
}
|
||
AO_DWQ_SYNC(1);
|
||
AO_BLF_SYNC1(1);
|
||
AO_BLF_SYNC2(1);
|
||
}
|
||
|
||
/*******************************************************************************
|
||
函数名称 ： ao_dwq_set
|
||
功 能 ： AO电流输出
|
||
参 数 ： current--电流值
|
||
返 回 值 ： 无
|
||
*******************************************************************************/
|
||
void ao_dwq_set(float current)
|
||
{
|
||
uint16_t data = 0;
|
||
current = current * 100;//电流转为电压
|
||
data = (current * 4096) / 3300;
|
||
cnum = data;
|
||
ao_write(data,AO_DWQ);
|
||
}
|
||
|
||
/*******************************************************************************
|
||
函数名称 ： ao_blf1_set
|
||
功 能 ： AO电流输出
|
||
参 数 ： current--电流值
|
||
返 回 值 ： 无
|
||
*******************************************************************************/
|
||
void ao_blf1_set(float current)
|
||
{
|
||
uint16_t data = 0;
|
||
current = current * 100;//电流转为电压
|
||
data = (current * 4096) / 3300;
|
||
ao_write(data,AO_BLF1);
|
||
}
|
||
|
||
/*******************************************************************************
|
||
函数名称 ： ao_blf2_set
|
||
功 能 ： AO电流输出
|
||
参 数 ： current--电流值
|
||
返 回 值 ： 无
|
||
*******************************************************************************/
|
||
void ao_blf2_set(float current)
|
||
{
|
||
uint16_t data = 0;
|
||
current = current * 100;//电流转为电压
|
||
data = (current * 4096) / 3300;
|
||
ao_write(data,AO_BLF2);
|
||
}
|
||
|