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求高手指点,C6748 JTAG连接不上

使用UART BOOT (PC机采用 UART BOOT HOST ),打印信息如下:
 
(File IO): Read 33380 bytes from file E:\b.bin.
(Serial Port): Opening COM1 at 115200 baud...
(AIS Parse): Read magic word 0x41504954.
(AIS Parse): Waiting for BOOTME... (power on or reset target now)
(Serial Port): Read error:
由于线程退出或应用程序请求,已放弃 I/O 操作。
 
(AIS Parse): BOOTME received!
(AIS Parse): Performing Start-Word Sync...
(AIS Parse): Performing Ping Opcode Sync...
(AIS Parse): Processing command 0: 0x58535901.
(AIS Parse): Performing Opcode Sync...
(Serial Port): Read error: The operation has timed out.
(AIS Parse): I/O Error in read!
(Serial Port): Read error: The operation has timed out.
(AIS Parse): I/O Error in read!
(Serial Port): Read error: The operation has timed out.
(AIS Parse): I/O Error in read!
(Serial Port): Read error: The operation has timed out.
(AIS Parse): I/O Error in read!
(Serial Port): Read error: The operation has timed out.
(AIS Parse): I/O Error in read!
(Serial Port): Read error: The operation has timed out.
(AIS Parse): I/O Error in read!
(Serial Port): Read error: The operation has timed out.
(AIS Parse): I/O Error in read!
(Serial Port): Read error: The operation has timed out.
(AIS Parse): I/O Error in read!
(Serial Port): Read error: The operation has timed out.
(AIS Parse): I/O Error in read!
(Serial Port): Read error: The operation has timed out.
(AIS Parse): I/O Error in read!
(Serial Port): Read error: The operation has timed out.
(AIS Parse): I/O Error in read!
(AIS Parse): Opcode Sync failed after 11 consecutive I/O failures.
(AIS Parse): Boot aborted.
(Serial Port): Closing COM1.
 
 
使用UART BOOT时,PC用超级终端能 收到 BOOTME
 
但是JTAG不能连接。UART BOOT 也不能成功,请问为什么
 
SPI BOOT
方式,BOOT 示波器能观测到开始时SPI-CLK 88BIT 方波。
  • 你好,板卡上是否有复位按钮,在连接CCS之前,按复位键再connection,试试。

    如果还不行,建议测试JTAG的信号是否正常,还有能否把无法连接的报错发上来?

  • 没有复位按钮,JTAG信号均有波形,报错信息如下:

    Error connecting to the target:

    Error 0x80000240/-1146

    Fatal Error during: Initialization, OCS,

    Invalid data was scanned by the emulation controller.

    Verify the board setup to make sure the scan chain is properly

    defined.

    If the setup is correct, then RESET EMULATOR.  This will disconnect each

    target from the emulator.  The targets should then be power cycled

    or hard reset followed by an emureset and reconnect to each target.

    谢谢!

  • 没有复位按钮,JTAG信号均有波形,报错信息如下:

    Error connecting to the target:

    Error 0x80000240/-1146

    Fatal Error during: Initialization, OCS,

    Invalid data was scanned by the emulation controller.

    Verify the board setup to make sure the scan chain is properly

    defined.

    If the setup is correct, then RESET EMULATOR.  This will disconnect each

    target from the emulator.  The targets should then be power cycled

    or hard reset followed by an emureset and reconnect to each target.

    谢谢!

  • 补充一下,1.2V先上电,76ms后1.8上电,然后6ms后3.3V上电,3.3V上电后150ms , RESET从低到高。

  • 你好,我大体看了一下你发的报错信息,怎么感觉是配置有问题,DSP通过仿真器反馈给CCS的信息不正确。

    你的CCS3.3的具体版本是多少?使用的是什么仿真器?

  • 我使用的是CCS4.1.2,仿真器是TIDSP-XDS100V2.

    但是相同的CCS和仿真器,链接TI的开发板可以连接上。

    我还有个问题,你说的“DSP通过仿真器反馈给CCS的信息不正确。”具体点是指?

  • 我使用的是CCS4.1.2,仿真器是TIDSP-XDS100V2.

    但是相同的CCS和仿真器,链接TI的开发板可以连接上。

    我还有个问题,你说的“DSP通过仿真器反馈给CCS的信息不正确。”具体点是指?

  • 你好,那你就要查你的硬件板卡了。

    你看“Invalid data was scanned by the emulation controller.”可以看出反馈的信息不正确。

  • 板子硬件已经查过了,没有找到错误,包括JTAG接口等电路,请问一下,你怀疑硬件哪方面可能存在问题呢,谢谢。

  • 你好,主要是你使用同一个仿真器,同样的环境下,调试TI的EVM板可以的话,就排除了仿真器和环境的有问题的情况。

    建议你这两个板子在connection的时候,测量JTAG端的信号,看有什么不同的。

  • 您好,我也遇到同样问题了,您最后是怎么解决的