.. _rzg2l-cm33-evk-setup:

Setup of eval kit for CM33 debugging
====================================

The document Release Note for RZ/G2L Multi-OS Package shows how to load and debug CM33 firmware with a
with Segger J-Link connection.

This can be done in the same way with a TXRZ module mounted on a TX Mainboard7.
There are two processor signals, that must be setup correctly to enable JTAG debugging:


**DEBUGEN:**
   Switches between normal operation and debug operation.

**BSCANP:**
   Switches between normal operation and boundary scan test model.



Operating Mode:

+----------+----------+-------------------------------------+
| BSCANP   | DEBUGEN  | Operating mode                      |
+==========+==========+=====================================+
| 0        | 0        | Normal operation                    |
+----------+----------+-------------------------------------+
| 0        | 1        | Debug operations                    |
+----------+----------+-------------------------------------+
| 1        | X        | Boundary scan test mode             |
+----------+----------+-------------------------------------+

The two signals can be controlled with the jumper field JP5-JTAGMODE on the TX Mainboard7:

.. figure:: images/mb7-jp5.png
   :scale: 80 %
   :align: left
   :figwidth: 100%

To debug the Cortex®-M33 core via JTAG, the JP5 jumpers must be set in the following way:

.. figure:: images/cm33-mb7-jp5.png
   :scale: 60 %
   :align: left
   :figwidth: 100%



The 10-pin haeder of the SEGGER J-Link adapter must be connected to the 20-pin JTAG header ST6
on the TX Mainboard7 with an appropriate adapter in the following way:

+-------------------------+-------------------------+-------------------------+
| Segger J-Link mini      | MB7 JTAG ICE Interface  | Functionality           |
+=========================+=========================+=========================+
| 1 - VTref               | 1 - 3V3                 | IO voltage reference    |
+-------------------------+-------------------------+-------------------------+
| 2 - SWDIO/TMS           | 7 - TMS                 |                         |
+-------------------------+-------------------------+-------------------------+
| 3 - GND                 | 4-20 - GND              |                         |
+-------------------------+-------------------------+-------------------------+
| 4 - SWCLK/TCK           | 9 - TCK                 |                         |
+-------------------------+-------------------------+-------------------------+
| 5 - GND                 | 4-20 - GND              |                         |
+-------------------------+-------------------------+-------------------------+
| 6 - SWO/TDO             | 13 - TDO                |                         |
+-------------------------+-------------------------+-------------------------+
| 7 - NC                  |                         | unused                  |
+-------------------------+-------------------------+-------------------------+
| 8 - TDI                 | 5 - TDI                 |                         |
+-------------------------+-------------------------+-------------------------+
| 9 - NC                  |                         | unused                  |
+-------------------------+-------------------------+-------------------------+
| 10 - nRESET             | 15 SRESET#              | board reset             |
+-------------------------+-------------------------+-------------------------+