Mon Feb 28 17:14:59 2011: Loaded macro file: C:Program FilesIAR SystemsEmbedded Workbench 5.4armconfigflashloaderTexasInstrumentsFlashLM3Sxxx.mac
Mon Feb 28 17:14:59 2011: DLL version: V4.12
Mon Feb 28 17:14:59 2011: Firmware: J-Link ARM V8 compiled Dec 1 2009 11:42:48
Mon Feb 28 17:14:59 2011: JTAG speed is initially set to: 32 kHz
Mon Feb 28 17:14:59 2011: Could not measure total IR len. TDO is constant high.
Mon Feb 28 17:14:59 2011: Could not measure total IR len. TDO is constant high.
Mon Feb 28 17:15:00 2011: Could not measure total IR len. TDO is constant high.
Mon Feb 28 17:15:00 2011: Resetting target using RESET pin Mon Feb 28 17:15:06 2011: Halting CPU core
Mon Feb 28 17:15:11 2011: Fatal error: Could not find supported CPU core on JTAG chain Bad JTAG communication: Write to IR: Expected 0x1, got 0x7 (TAP Command : 2) @ Off 0x5. Session aborted!
Mon Feb 28 17:15:11 2011: Failed to load flash loader: C:Program FilesIAR SystemsEmbedded Workbench 5.4armconfigflashloaderTexasInstrumentsFlashLM3SxxxRAM16K.out
Mon Feb 28 17:15:11 2011: Failed to load flash loader: C:Program FilesIAR SystemsEmbedded Workbench 5.4armconfigflashloaderTexasInstrumentsFlashLM3Sx3xx.flash
芯片用的是LM3s6432 ,试了好几个板子,都是无法用J-link下载的情况(在该工程下其他板子可以正常下载)。。
硬件上电压都是正确的,但是TRST脚位电压不正常只有2V。。原理图和芯片脚位、连接情况都确认了,没有问题,
应该不是所谓的锁死问题,请教高手,有没有遇到过相似的问题。。。。万分感谢!!!
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小平头技术问答
没有使用过 J-Link,不知道什么原因,顶一下。
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