Content originally posted in LPCWare by lpcxpresso-support on Tue Sep 24 00:08:09 MST 2013
The lack of JTAG support is in a restriction in the layer that implements CMSIS-DAP at present. We do intend adding JTAG support to the CMSIS-DAP support layer in a future release. At present if you want to do dual core debug connections to LPC43xx, you will need to use a non CMSIS-DAP connection, such as a Red Probe+, an LPC-Link1 (from an LPCXpresso board), or an LPC-Link2 (via our 'redlink' firmware, not CMSIS-DAP firmware).
Note that we have no plans to support debugging of ARM7 parts with CMSIS-DAP (or any 'redlink') connections. To debug such parts, you will need to continue to use Red Probe+ or LPC-Link1.
Regards,
LPCXpresso Support