PGA-400Q1-EVM下载程序返回读0或读0XFF，求解决，多谢。

硬件连接如图，四个LED均亮。上位机软件未进行任何设置，初始状态下进行HEX文件选取和下载，总会出现如下错误：

ERROR - OTP Progamming was NOT successful. Please check the 'Error' Tab for more information
ERROR - Register 026A, was programmed to: 22, but read back: 00
ERROR - Register 0269, was programmed to: EF, but read back: 00
ERROR - Register 0268, was programmed to: 80, but read back: 00
ERROR - Register 0267, was programmed to: A3, but read back: 00
ERROR - Register 0266, was programmed to: 0D, but read back: 00
ERROR - Register 0265, was programmed to: F5, but read back: 00
ERROR - Register 0264, was programmed to: 0D, but read back: 00
ERROR - Register 0263, was programmed to: 25, but read back: 00
ERROR - Register 0262, was programmed to: 93, but read back: 00

......

有时候读返回是0XFF，不知怎么回事，求各位大哥哥大姐姐知道。感谢。灰常感谢。期待很棒的你们的回答。

老兄的问题好像已经发了4次了...发这么多，之前回复的人不好跟进你的问题。

你的问题显然要自己检查一下硬件方面的电气特性，不排除板子有问题。

LED只是‘串联’在power source处作为source端OK的标示，不代表整个板子power 都没有问题。

另外板子上应该有SPI或者I2C的信号线可以量测，检查是否有异常。

老兄，非常感谢。。是啊。哎，刚毕业的小生才接触TI。。望原谅。

量了下VDD电源怎么是7.5V、、、额  大哥 你有木有实时通讯工具 想向您请教下 我的企鹅 378591782 多谢