Dear Vybrid users,
TWR-VF65 rev. H can be debugged by:
- on-board OpenSDA. CMSIS-DAP application needed. Default Virtual serial port application loaded. CMSIS-DAP + Virtual serial port application attached for your convenience (DS-5 5.19 and higher needed)
- external debugger connected to J5 (J-Link,Lauterbach, DSTREAM,....) or J11 (Lauterbach, DSTREAM).
When used external debugger and Tower System is powered from the primary elevator then OpenSDA circuit blocks SWD/JTAG lines.
To avoid this:
- power Tower System from J3
- populate resistor R161 10k which is default DNP - bottom side, between U14 and U13 - see the picture below:
The reason is that when powered from the primary elevator and U3 power is not present then OpenSDA is in reset state - default value of U14D is not set.
Rev.G of TWR-VF65 has to be powered from U3, so workaround is not applicable here.
Original Attachment has been moved to: CMSIS-DAP-VSP-FSL-VID-PID.zip