ZHCABL2A November   2021  – March 2022 DAC43204 , DAC53004 , DAC53204 , DAC53204W , DAC63004 , DAC63204

 

  1.   设计目标
  2.   设计说明
  3.   设计注意事项
  4.   设计仿真
    1.     瞬态仿真结果
  5.   寄存器设置
  6.   伪代码示例
  7.   设计特色器件
  8.   设计参考资料

伪代码示例

下面显示了将初始寄存器值编程到 DAC53004 NVM 的伪代码序列。此处给出的值基于在设计注意事项中所做的设计选择。

电压输出配置的伪代码示例

1：  //SYNTAX: WRITE <REGISTER NAME (Hex code)>, <MSB DATA>, <LSB DATA>  
2:  //Configure GPI for deep-sleep trigger and enable deep-sleep function
3:  WRITE GPIO-CONFIG(0x24), 0x40, 0x01 
4:  //Write DAC0 margin high code
5:  //With 16-bit left alignment 0x200 becomes 0x8000
6:  WRITE DAC-0-MARGIN-HIGH(0x01), 0x80, 0x00
7:  //Write DAC0 margin low code
8:  WRITE DAC-0-MARGIN-LOW(0x02), 0x00, 0x00
9:  //Set the CODE-SETP to 1 LSB and SLEW-RATE to 4 µs/step
10: WRITE DAC-0-FUNC-CONFIG(0x06), 0x00, 0x01
11: //Power-up voltage output on channel 0, internal reference disabled
12: WRITE COMMON-CONFIG(0x1F), 0x0F, 0xF9 
13: //Enable the GPI, save settings to NVM
14: WRITE COMMON-TRIGGER(0x20), 0x00, 0x02 

15: //Trigger for channel 0 margin high
16: WRITE COMMON-DAC-TRIG(0x21), 0x02, 0x00
17: //Trigger for channel 0 margin low
18: WRITE COMMON-DAC-TRIG(0x21), 0x04, 0x00

电流输出配置的伪代码示例

1：  //SYNTAX: WRITE <REGISTER NAME (Hex code)>, <MSB DATA>, <LSB DATA>  
2:  //Configure GPI for deep-sleep trigger and enable deep-sleep function
3:  WRITE GPIO-CONFIG(0x24), 0x40, 0x01 
4:  //Write DAC0 margin high code
5:  //With 16-bit left alignment, 0xFF becomes 0xFF00
6:  WRITE DAC-0-MARGIN-HIGH(0x01), 0xFF, 0x00
7:  //Write DAC0 margin low code
8:  //With 16-bit left alignment, 0x80 becomes 0x8000
9:  WRITE DAC-0-MARGIN-LOW(0x02), 0x80, 0x00
10: //Set the CODE-SETP to 1 LSB and SLEW-RATE to 4 µs/step
11: WRITE DAC-0-FUNC-CONFIG(0x06), 0x00, 0x01
12: //Power-up current output on channel 0, internal reference disabled
13: WRITE COMMON-CONFIG(0x1F), 0x0F, 0xFE 
14: //Enable the GPI, save settings to NVM
15: WRITE COMMON-TRIGGER(0x20), 0x00, 0x02 

16: //Trigger for channel 0 margin high
17: WRITE COMMON-DAC-TRIG(0x21), 0x02, 0x00
18: //Trigger for channel 0 margin low
19: WRITE COMMON-DAC-TRIG(0x21), 0x04, 0x00