公司要用這兩個芯片,查了半天沒查到,只能自己寫驅動,下面共享出來吧。
AD5065:
void AD5065_ReadWrite32Bit(u32 cmd)
{
u8 i;
AD5065_PDL_Pin_SET();
AD5065_LDAC_Pin_SET();
AD5065_SYNC_Pin_SET();
delay_us(10);
AD5065_SYNC_Pin_RESET();
AD5065_CLR_Pin_RESET();
delay_us(1);
AD5065_CLR_Pin_SET();
for(i = 0; i < 32; i++)
{
delay_us(1);
AD5065_SCLK_Pin_SET();
delay_us(1);
if(cmd & 0x80000000) AD5065_DIN_Pin_SET();
else AD5065_DIN_Pin_RESET();
cmd <<= 1;
AD5065_SCLK_Pin_RESET();
}
AD5065_SYNC_Pin_SET();
delay_us(1);
AD5065_PDL_Pin_RESET();
AD5065_LDAC_Pin_RESET();
delay_us(1);
AD5065_LDAC_Pin_SET();
AD5065_PDL_Pin_SET();
}
void AD5065_SetVol(uint8_t Command, uint8_t AddressCommands, float Vol)//mV
{
uint32_t dat = (((Command | AddressCommands) << 16) | ((uint16_t)(Vol/3000.0f*65535))) << 4;
AD5065_ReadWrite32Bit(dat);
}
AD5065_ReadWrite32Bit爲寫數據函數,使用的時候調用AD5065_SetVol函數即可,Command 和 AddressCommands參考datasheet,我這裏用的如下:
#define AD5065_COMMAND_WRITE_CHANNEL 0x30 //Write to and update DAC Channel n1
#define AD5065_ADDRESS_A 0x00 //DAC A
#define AD5065_ADDRESS_B 0x03 //DAC B
#define AD5065_ADDRESS_AB 0x0F //DAC AB通道同時設置一個值
AD1232:
long AD1232_24Bit(void)
{
int i=0;
unsigned long ad_value=0;
ADS1232_Init(0);
while(HAL_GPIO_ReadPin(AD1232_DOUT_GPIO_Port, AD1232_DOUT_Pin)) {}
for(i=0; i<24; i++)
{
ad_value=ad_value<<1;
HAL_GPIO_WritePin(AD1232_SCLK_GPIO_Port, AD1232_SCLK_Pin, GPIO_PIN_SET);
HAL_GPIO_WritePin(AD1232_SCLK_GPIO_Port, AD1232_SCLK_Pin, GPIO_PIN_RESET);
if(HAL_GPIO_ReadPin(AD1232_DOUT_GPIO_Port, AD1232_DOUT_Pin)==GPIO_PIN_SET)
{
ad_value|=0x01;
}
else ;
ad_value &= 0x7fffff;
}
HAL_GPIO_WritePin(AD1232_SCLK_GPIO_Port, AD1232_SCLK_Pin, GPIO_PIN_SET);
delay_us(1);
HAL_GPIO_WritePin(AD1232_SCLK_GPIO_Port, AD1232_SCLK_Pin, GPIO_PIN_RESET);
delay_us(1);
HAL_GPIO_WritePin(AD1232_SCLK_GPIO_Port, AD1232_SCLK_Pin, GPIO_PIN_SET);
delay_us(1);
HAL_GPIO_WritePin(AD1232_SCLK_GPIO_Port, AD1232_SCLK_Pin, GPIO_PIN_RESET);
delay_us(1);
return ad_value;
}
採用的是HAL庫編寫,具體要看情況進行修改。