Hello,
I am attempting to debug a target board with a TI DM3725 processor using the JLink Pro, but I am having issues when making connections from the board to the TI-14 Pin adapter. As previously stated, the device will not power on when all pins connected to ground are inserted into the adapter cable [pins: 4, 8, 10, 12]. The DM3725 is an ARM Cortex-A8, and should be supported by the JLink. Are there any issues with supporting the DM3725 specifically? Other Siatra processors (AM37XX) are supported and are similar to this one. I should mention that even when my device is connected to the adapter cable, and the adapter cable is not plugged into the Jlink Pro, the device will not power on. Power issues are occurring with connections to the adapter alone. The device operates as normal when not connected to the TI adapter.
I've noticed that if and only if I remove 3 ground connections [specifically pins: 8, 10 & 12], the device will power on. In this case, Pin 4 (TDIS and Ground on the target), is still connected to the Adapter and to the JLINK Pro. The Jlink will then detect a very low voltage of about ~1.5V.
When using JLink Commander, I see that the debugger detects a voltage reference of ~3.2 when all of the ground pins are inserted into the adapter; I believe the voltage reference for this board is 3.3v, so 3.2 volts is still a bit low. How can I resolve/debug this issue? Is it necessary to have all 4 connections to ground from the target board to the adapter?
Thanks,
OSS
I am attempting to debug a target board with a TI DM3725 processor using the JLink Pro, but I am having issues when making connections from the board to the TI-14 Pin adapter. As previously stated, the device will not power on when all pins connected to ground are inserted into the adapter cable [pins: 4, 8, 10, 12]. The DM3725 is an ARM Cortex-A8, and should be supported by the JLink. Are there any issues with supporting the DM3725 specifically? Other Siatra processors (AM37XX) are supported and are similar to this one. I should mention that even when my device is connected to the adapter cable, and the adapter cable is not plugged into the Jlink Pro, the device will not power on. Power issues are occurring with connections to the adapter alone. The device operates as normal when not connected to the TI adapter.
I've noticed that if and only if I remove 3 ground connections [specifically pins: 8, 10 & 12], the device will power on. In this case, Pin 4 (TDIS and Ground on the target), is still connected to the Adapter and to the JLINK Pro. The Jlink will then detect a very low voltage of about ~1.5V.
When using JLink Commander, I see that the debugger detects a voltage reference of ~3.2 when all of the ground pins are inserted into the adapter; I believe the voltage reference for this board is 3.3v, so 3.2 volts is still a bit low. How can I resolve/debug this issue? Is it necessary to have all 4 connections to ground from the target board to the adapter?
Thanks,
OSS