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28035烧写错误

Other Parts Discussed in Thread: UNIFLASH

各位大咖,小弟在烧写28035 FLASH做了如下的测试:

1、使用TARGET Configuration中的test测试,JTAG succeed;

2、烧写程序,连接上仿真器,提示如下的错误信息:

C28xx: GEL Output:
Device Calibration not complete, check if device is unlocked and recalibrate.C28xx: GEL Output:
Device Calibration not complete, check if device is unlocked and recalibrate.C28xx: Flash Programmer: Device is locked or not connected. Operation cancelled.
C28xx: File Loader: Memory write failed: Unknown error
C28xx: GEL: File: C:\Users\hellokitty\Desktop\28035\Debug\test.out: Load failed.

28035 JTAG原理图如下:

GPIO34引脚通过电阻上拉;

3、XRS复位引脚每隔一定时间周期性低电平一段时间;

麻烦大咖们指点下了