PL360MB board includes a JTAG interface port to provide debug level access to the system-on-chip. The JTAG port is a 20-pin, dual row, 0.1-inch male right angle connector (J13). This provides the required interface for in-circuit emulators such as the ARM® Multi-ICE and Atmel SAM-ICE™.
Important: Note that PL360-EK does
not provide a SAM-ICE JTAG emulator probe to connect
to the user’s host PC and the boards in order to download and debug the projects.
Please refer to the SAM4CMS datasheet for further description of the JTAG debug port.
Figure 1. JTAG/ICE Interface Schematic
CAUTION: Remember that the
SAM4CMS16C JTAG connector is non-isolated. Please make use of proper isolation (i.e., USB
isolator device) if debugging when the board is not galvanically isolated (metrology
circuit measurements or using an PLCOUPxxx board which it is not isolated from
mains).
Important: If you are using USB
isolators to connect the devices to the computer, take into account the possible noise that
these isolators could be adding to the PLC network. Some of these USB isolators use
frequencies of the FCC band that could affect the communications. For example, you can use
the UH401.