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用USB100V2的仿真器是不是在串口通信时,不能设置成9600波特率,而只能设置成57600波特率?谢谢!
我用的是28027芯片,当串口通信波特率设置成57600时,无论是烧写到flash中还是ram中,运行均正常,通信通常。
但是将通信程序中的波特率设置成9600后,就出现了以下报错:
C28xx: Trouble Reading PC Register: (Error -1142 @ 0x0) Device blocked debug access because it is currently executing non-debuggable code. Choose 'Rude Retry' to disable polite mode and force the operation. (Release 5.0.333.0)
请问这是什么问题?
USB100V2指的是XDS100V2 ?
我找了一个XDS100V2测试了一下,没有发生这个问题,9600~115200都能正常。
做交叉试验吧,看看问题是有那部分不稳定导致。