大家好:
现自己做了10pcsDM6467开发板,有3pcs板在烧写UBL与UBOOT时报错,现象如下图(停在waiting for sending sequence),其它7pcs可以正常工作,3pcs不良已经更换过flash,报错还是一样,找了好久也没有发现是哪里问题,请大家帮忙分析一下,谢谢!
急!!
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按照log给出的提示信息,可以认为芯片没有收到串口上发来的数据。你要先量一下UART到232芯片以及232芯片到串口有没有数据