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TMS320F280049C: 烧录程序时 怎样配置为 XDS110为目标板供电

Part Number: TMS320F280049C
Other Parts Discussed in Thread: UNIFLASH

目标板JTAG配置为两线制,接线信号如下:

当目标板外接电源时,连接XDS110,使用UniFlash 5.3.1可以为目标板下载程序

现在想利用XDS110为目标板供电,不外接电源。XDS110配置如下:

使用UniFlash 5.3.1进行下载程序失败,报错界面如下:

1、请问我的问题出在哪里?

2、当我电脑和XDS110连接后,并且UniFlash 5.3.1中已经选了配置文件,在没有连接目标板的情况下,测量14pin的JTAG,5pin对8pin会有1.8~3.3的电压吗?