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.
zhihe,
你的意思是给5529 的开发板供5V的电,然后在芯片的VCC管脚测到的电压没有3.3V是吧?
有没有测过板载LDO两端的电压,看看其是否工作正常。
谢谢