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ADUC7020无法进入烧写模式,怎么办?

shangwolf 在 2015-7-20 詢問的問題
最後回覆由ADI_XUN於2015-7-29提供

由于程序有BUG导致用JTAG烧写程序后,再无法烧写,DEBUG模式也无法进入?怎么办?

KEIL信息如下:

VTarget = 3.228V

Info: TotalIRLen = 4, IRPrint = 0x01

Info: TotalIRLen = 4, IRPrint = 0x01

Info: RTCK seems to be bridged with TCK

Info: Auto JTAG speed: 8000 kHz

***JLink Warning: PC of target system has unexpected value of 0xFFFFFFD8 after reset.

***JLink Error: Bad JTAG communication: Write to IR: Expected 0x1, got 0x2 (TAP Command : 12) @ Off 0x14.

DLL version V4.15n, compiled Jun 18 2010 19:55:09

Firmware: J-Link ARM V8 compiled Jul 17 2014 12:31:18

Hardware: V8.00

Info: Could not measure total IR len. TDO is constant high.

***JLink Warning: No matching core found.

Info: Could not measure total IR len. TDO is constant high.

Info: Could not measure total IR len. TDO is constant high.

Info: Could not measure total IR len. TDO is constant high.

Info: Could not measure total IR len. TDO is constant high.

***JLink Warning: No matching core found.

Info: Could not measure total IR len. TDO is constant high.

Info: Failed to halt CPU core before ADI software reset.

Info: Could not measure total IR len. TDO is constant high.

Info: Resetting target using RESET pin

Info: Resetting TRST

Info: CPU no longer halted after stop via DBGRQ: DBGACK = 0, nMREQ  = 0

***JLink Error: Could not find supported CPU core on JTAG chain

1, got 0x2 (TAP Command : 12) @ Off 0x14.

Bad JTAG communication: Write to IR: Expected 0x1, got 0x3 (TAP Command : 12) @ Off 0x14.

JTAG speed: 5 kHz

Full Chip Erase Failed!

結果