TMS320C5517连不上仿真器

cym

TMS320C5517连不上仿真器 [复制链接]

TMS320C5517连不上仿真器,一下是test connection时打印的信息，而且连JTAG电压，只有TDO,TCK有电压，剩下的都没有电压，请问可能是什么原因造成的？

The scan-path will be reset by toggling the JTAG TRST signal.
The controller is the Nano-TBC VHDL.
The link is a 560-class second-generation-560 cable.
The software is configured for Nano-TBC VHDL features.
The controller will be software reset via its registers.
The controller has a logic ONE on its EMU[0] input pin.
The controller has a logic ZERO on its EMU[1] input pin.
The controller will use falling-edge timing on output pins.
The controller cannot control the timing on input pins.
The scan-path link-delay has been set to exactly '2' (0x0002).
The utility logic has not previously detected a power-loss.
The utility logic is not currently detecting a power-loss.
Loaded FPGA Image: D:\ti\ccsv6\ccs_base\common\uscif\dtc_top.jbc

An error occurred while hard opening the controller.

-----[An error has occurred and this utility has aborted]--------------------

This error is generated by TI's USCIF driver or utilities.

The value is '-233' (0xffffff17).
The title is 'SC_ERR_PATH_BROKEN'.

The explanation is:
The JTAG IR and DR scan-paths cannot circulate bits, they may be broken.
An attempt to scan the JTAG scan-path has failed.
The target's JTAG scan-path appears to be broken
with a stuck-at-ones or stuck-at-zero fault.

[End: Spectrum Digital XDS560V2 STM USB Emulator_0]

pengchiyu

问题解决了吗？什么原因

alan000345

看提示是引脚有问题啊，检查一下电路吧。

Jacktang

测量一下TRST引脚在连接仿真器时有没有被拉高。

仔细看数据手册，在对全新片子编程的时候，如果boot模式设置为第4种GetMode，这样的话看门狗默认是使能的，所以在RST引脚上一直有RST信号，会使得影响正常的JTAG连接和器件初始化。所以他们推荐的是对全新未编程的芯片使用第三种wait模式，或者其他的模式，然后连接仿真器。

 

 

学习杜

Jacktang 发表于 2019-8-30 09:59 测量一下TRST引脚在连接仿真器时有没有被拉高。 仔细看数据手册，在对全新片子编程的时候，如果boot模式 ...

感恩，谢谢谢谢谢