原理图如下:
1)8位I2C地址是0xA0,测试可以正常读写寄存器。下图时捕捉到的时序。、
2)测试时R22电阻断开,
-->寄存器WRB和WRA都给0x00,测试HA引脚到地的阻值位52.4K
-->寄存器WRB和WRA都给0xff,测试HA引脚到地的阻值位9.5K
-->寄存器WRB 0x00和WRA给0xff,测试HA引脚到地的阻值位9.5K
-->寄存器WRB 0x00和WRA给0xff,测试HA引脚到地的阻值位9.5K
This thread has been locked.
If you have a related question, please click the "Ask a related question" button in the top right corner. The newly created question will be automatically linked to this question.
原理图如下:
1)8位I2C地址是0xA0,测试可以正常读写寄存器。下图时捕捉到的时序。、
2)测试时R22电阻断开,
-->寄存器WRB和WRA都给0x00,测试HA引脚到地的阻值位52.4K
-->寄存器WRB和WRA都给0xff,测试HA引脚到地的阻值位9.5K
-->寄存器WRB 0x00和WRA给0xff,测试HA引脚到地的阻值位9.5K
-->寄存器WRB 0x00和WRA给0xff,测试HA引脚到地的阻值位9.5K