This thread has been locked.

If you have a related question, please click the "Ask a related question" button in the top right corner. The newly created question will be automatically linked to this question.

28335连接不上仿真器

Other Parts Discussed in Thread: UNIFLASH

你好!我用的仿真器是XDS100V2和TMS320f28335,新焊的板子,仿真器可以连接另一块不同的板子。上电后Test Connection不通过,CLKOUT有1.65V左右的输出,复位引脚是高电平。如果一直按住复位按钮,则Test Connection通过,并且用UniFlash可以读取Flash的内容。目前不知道是什么原因,请给一些建议,谢谢!

  • 请问Test Connection生成的报告是怎样的?

    另外您可以参考

    software-dl.ti.com/.../ccsv7_debugging_jtag_connectivity_issues.html
  • 你好,生成的报告如下,同一个项目在另一个不同的板子上是好的。Boot的引脚悬空了,不知道有没有影响。

    [Start: Texas Instruments XDS100v2 USB Debug Probe_0]

    Execute the command:

    %ccs_base%/common/uscif/dbgjtag -f %boarddatafile% -rv -o -F inform,logfile=yes -S pathlength -S integrity

    [Result]


    -----[Print the board config pathname(s)]------------------------------------

    C:\Users\wcn0967\AppData\Local\TEXASI~1\
    CCS\ti\0\0\BrdDat\testBoard.dat

    -----[Print the reset-command software log-file]-----------------------------

    This utility has selected a 100- or 510-class product.
    This utility will load the adapter 'jioserdesusb.dll'.
    The library build date was 'Jul 27 2016'.
    The library build time was '18:31:37'.
    The library package version is '6.0.407.3'.
    The library component version is '35.35.0.0'.
    The controller does not use a programmable FPGA.
    The controller has a version number of '4' (0x00000004).
    The controller has an insertion length of '0' (0x00000000).
    This utility will attempt to reset the controller.
    This utility has successfully reset the controller.

    -----[Print the reset-command hardware log-file]-----------------------------

    The scan-path will be reset by toggling the JTAG TRST signal.
    The controller is the FTDI FT2232 with USB interface.
    The link from controller to target is direct (without cable).
    The software is configured for FTDI FT2232 features.
    The controller cannot monitor the value on the EMU[0] pin.
    The controller cannot monitor the value on the EMU[1] pin.
    The controller cannot control the timing on output pins.
    The controller cannot control the timing on input pins.
    The scan-path link-delay has been set to exactly '0' (0x0000).

    -----[The log-file for the JTAG TCLK output generated from the PLL]----------

    There is no hardware for programming the JTAG TCLK frequency.

    -----[Measure the source and frequency of the final JTAG TCLKR input]--------

    There is no hardware for measuring the JTAG TCLK frequency.

    -----[Perform the standard path-length test on the JTAG IR and DR]-----------

    This path-length test uses blocks of 64 32-bit words.

    The test for the JTAG IR instruction path-length failed.
    The JTAG IR instruction scan-path is stuck-at-ones.

    The test for the JTAG DR bypass path-length failed.
    The JTAG DR bypass scan-path is stuck-at-ones.

    -----[Perform the Integrity scan-test on the JTAG IR]------------------------

    This test will use blocks of 64 32-bit words.
    This test will be applied just once.

    Do a test using 0xFFFFFFFF.
    Scan tests: 1, skipped: 0, failed: 0
    Do a test using 0x00000000.
    Test 2 Word 0: scanned out 0x00000000 and scanned in 0xFFFFFFFF.
    Test 2 Word 1: scanned out 0x00000000 and scanned in 0xFFFFFFFF.
    Test 2 Word 2: scanned out 0x00000000 and scanned in 0xFFFFFFFF.
    Test 2 Word 3: scanned out 0x00000000 and scanned in 0xFFFFFFFF.
    Test 2 Word 4: scanned out 0x00000000 and scanned in 0xFFFFFFFF.
    Test 2 Word 5: scanned out 0x00000000 and scanned in 0xFFFFFFFF.
    Test 2 Word 6: scanned out 0x00000000 and scanned in 0xFFFFFFFF.
    Test 2 Word 7: scanned out 0x00000000 and scanned in 0xFFFFFFFF.
    The details of the first 8 errors have been provided.
    The utility will now report only the count of failed tests.
    Scan tests: 2, skipped: 0, failed: 1
    Do a test using 0xFE03E0E2.
    Scan tests: 3, skipped: 0, failed: 2
    Do a test using 0x01FC1F1D.
    Scan tests: 4, skipped: 0, failed: 3
    Do a test using 0x5533CCAA.
    Scan tests: 5, skipped: 0, failed: 4
    Do a test using 0xAACC3355.
    Scan tests: 6, skipped: 0, failed: 5
    Some of the values were corrupted - 76.8 percent.

    The JTAG IR Integrity scan-test has failed.

    -----[Perform the Integrity scan-test on the JTAG DR]------------------------

    This test will use blocks of 64 32-bit words.
    This test will be applied just once.

    Do a test using 0xFFFFFFFF.
    Test 1 Word 0: scanned out 0xFFFFFFFF and scanned in 0x00000000.
    Test 1 Word 1: scanned out 0xFFFFFFFF and scanned in 0x00000000.
    Test 1 Word 2: scanned out 0xFFFFFFFF and scanned in 0x00000000.
    Test 1 Word 3: scanned out 0xFFFFFFFF and scanned in 0x00000000.
    Test 1 Word 4: scanned out 0xFFFFFFFF and scanned in 0x00000000.
    Test 1 Word 5: scanned out 0xFFFFFFFF and scanned in 0x00000000.
    Test 1 Word 6: scanned out 0xFFFFFFFF and scanned in 0x00000000.
    Test 1 Word 7: scanned out 0xFFFFFFFF and scanned in 0x00000000.
    The details of the first 8 errors have been provided.
    The utility will now report only the count of failed tests.
    Scan tests: 1, skipped: 0, failed: 1
    Do a test using 0x00000000.
    Scan tests: 2, skipped: 0, failed: 1
    Do a test using 0xFE03E0E2.
    Scan tests: 3, skipped: 0, failed: 2
    Do a test using 0x01FC1F1D.
    Scan tests: 4, skipped: 0, failed: 3
    Do a test using 0x5533CCAA.
    Scan tests: 5, skipped: 0, failed: 4
    Do a test using 0xAACC3355.
    Scan tests: 6, skipped: 0, failed: 5
    Some of the values were corrupted - 83.3 percent.

    The JTAG DR Integrity scan-test has failed.

    [End: Texas Instruments XDS100v2 USB Debug Probe_0]

  • CLKOUT输出电压为1.65V 这个方法是没有示波器的情况下 拿万用表可以这么判断 1.65V基本判断是有输出的
    这个比较明显了 应该就是复位问题 你看看是按一下复位后能正常了还是一直要按着 如果一直按着那可能就是电平反了 确认一下
  • 感谢你的回复。如果一直按着复位,虽然可以通过test connection,也可以读到flash的内容,但是在下载的时候会报错“处于复位状态,不能下载”,所以应该不是复位的原因。复位正常的时候输出3.3V,按住复位按钮是0V。