µ E Z
G U I U s e r ’ s M a n u a l
P a g e
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16
9/13/2023
Copyright ©2023, Future Designs, Inc.
Revision 1.2
Figure 2
–
UEZGUI-4357-70WVN-BA Component View
18.
I/O Connector Descriptions
J1 - JTAG Connector
The UEZGUI-4357-70WVN-BA uses a reduced size JTAG connector based on a
0.050”
Header. This smaller
connector provides 100% of the functionality of the standard 20-pin JTAG connector but utilizes 70% less board
space. The connector is a standard part available from most major vendors.
Pin Number
Description
Pin Number
Description
1
3.3V
2
TMS
3
Ground
4
TCK
5
Ground
6
TDO
7
No Connect
8
TDI
9
No Connect
10
RESETn
The connector part number is PN: SAMTEC FTSH-105-01. Kits come with the SEGGER J-Link Lite Cortex-M shown
below, and no adapter will be needed.
Figure 3
–
SEGGER J-Link Lite Cortex-M 9-Pin JTAG with pinout (Rev 2.X+)
SEGGER and OLIMEX both provide adapters to convert the standard 20-pin JTAG to the new ARM 9-pin JTAG.
The SEGGER adapter also allows for connecting TRST using a solder bridge if needed. These adapters have
female pins and are only compatible with 20-pin JTAG units that have male pins. Both adapters come with the
required cable.
•
SEGGER 9-pin adapter -
http://www.SEGGER.com/jlink-adapters.html#CM_9pin
•
OLIMEX 9-pin adapter -
https://www.olimex.com/Products/ARM/JTAG/ARM-JTAG-20-10/
J2 - Tag Connect
The UEZGUI-4357-70WVN-BA also includes the ability to JTAG and program using the Tag-Connect TC2050-
ARM2010 ARM 20-pin to TC2050 Adapter.
