280049Solution to the problem of LaunchPad emulator not being able to connect

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280049Solution to the problem of LaunchPad emulator not being able to connect [Copy link]

This time I got a TI official LAUNCHXL-F280049C, the board comes with an XDS110 emulator, 280049 belongs to the Piccolo F28004x series

To use F280049C, you need to install a higher version of CCS, because the lower version does not support the relevant hardware library. Therefore, I installed CCS8.0. Before installation, it is best to close 360 and other management software and anti-virus software. The installation process is not repeated here.

Note: Please do not use Windows 7 SP1 to install CCS8.0, because this version lacks a security patch. Failure to install this patch will result in the XDS110 driver not being installed.

After the software is installed, connect the target board to the computer via USB, and the computer will automatically install the driver. The driver is fully installed successfully as follows:

Open CCS, import the project, then select the simulator, save and test the connection. You will see the following error message:

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

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

This is because the design of this board uses a two-wire system, which is cJTAG, while the default is standard JTAG, which only requires two signals, TCK and TMS. The official document explains this, so we need to modify it in the .ccxml file, click advance below, and then select cJTAG (1149.7) 2-pin advance mode, and then save it. The specific operation is as shown in the figure below: