焊了几块板，结果调试不好用，用Jflash for arm 连接提示如下：
Connecting ...
- Connecting via USB to J-Link device 0
- J-Link firmware: V1.20 (J-Link ARM V8 compiled Jan 31 2011 18:34:52)
- JTAG speed: 5 kHz (Fixed)
- Initializing CPU core (Init sequence) ...
- Initialized successfully
- JTAG speed: 500 kHz (Fixed)
- J-Link found 2 JTAG devices. Core ID: 0x3BA00477 (Cortex-M3)
- Connected successfully
Auto programming target (8540 bytes, 1 range) ...
- Unsecure chip ...
- Chip unsecured successfully
- Erasing affected sectors ...
- ERROR: PC of target system has unexpected value after checking target RAM. (PC = 0xFFFFFFFE)!
---------------------------------------------------------------------- Registers -------------------------------------------------------------------------------------
PC = FFFFFFFE
Current: R0 = E7FEBE00, R1 = 20000438, R2 = 0000BBC8, R3 = 00004BC8
R4 = 20000000, R5 = E7FEBE00, R6 = 0000000D, R7 = FFFFFFFF
----------------------------------------------------------------------------------------------------------------------------------------------------------------------------
- ERROR: Failed to erase sectors
- ERROR: Failed to auto program target
Disconnecting ...
- Disconnected
过程是这样的：
如前半截提示，连接可以连上，但很慢，连上后再做其它操作都会出现后面的提示，只有一块板是正常的，之前也调试过一个产品，不发生这样的错误，请高人指点下，这个是没焊好还是片子坏了，因为这里面有曾用过的103，也有新的103，好用的那块板是曾用过的，不好用的有一块是新的103。 |
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