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TMS320F28388D: 程序可烧录进去,但在芯片上不能运行

Part Number: TMS320F28388D


TI官方给的PWM发波程序,可烧录到CPU1和CPU2,但在对应引脚上检测不到PWM波,自己写了一个GPIO高低电平翻转程序,能烧进去但在芯片上也没有反应(芯片在淘宝买的,商家说原装进口)