3.4.10.2 Debug JTAG
A 20-pin JTAG header (J38) is provided on the board to facilitate software development and debugging using various JTAG emulators. The interface signals have a voltage level of 3.3V.
| Signal | Pin No. | Pin No. | Signal |
|---|---|---|---|
|
VDD_3V3 |
2 |
1 |
VDD_3V3 |
|
GND |
4 |
3 |
NTRST |
|
GND |
6 |
5 |
TDI |
|
GND |
8 |
7 |
TMS |
|
GND |
10 |
9 |
TCK |
|
GND |
12 |
11 |
VDD_3V3 |
|
GND |
14 |
13 |
TDO |
|
GND |
16 |
15 |
NRST |
|
GND |
18 |
17 |
NC |
|
GND |
20 |
19 |
NC |