ETRA SOM/ETRA Evaluation Kit/Interfaces and Connectors/JTAG
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| 1.0.0 | Dec 2020 | First Release | |
JTAG interface[edit | edit source]
Description[edit | edit source]
The JTAG interface available on the Evaluation Kit at the connector J11.
J11 is a 30 pin (2x15x2.54mm) header connector and is also used for expansion signlas.
[[File:{Template:Nome-som-EVB-JTAG-connector.png|thumb|center|500px|JTAG connector]]
Signals[edit | edit source]
The following table describes the interface signals on J11 connector:
| Pin# | SOM Pin# | Pin name | Pin function | Pin Notes |
|---|---|---|---|---|
| 17 | J18.62 | VDD | VDD | reference voltage |
| 19 | J18.90 | JTMS-SWDIO | JTMS-SWDIO | |
| 21 | J18.98 | JTCK-SWCLK | JTCK-SWCLK | |
| 23 | J18.92 | JTDI | JTDI | |
| 25 | J18.96 | JTDO-TRACESWOO | JTDO-TRACESWOO | |
| 27 | J18.94 | NJTRST | NJTRST |
