Seco SBC-A62-J User Manual page 34

Configurations different from the standard offered must be evaluated singularly; please contact a SECO's sales representative / distributor for this.
3.3.16 Optional JTAG connector
Optional JTAG connector - J17
Pin Signal Pin Signal
1 +3P3V_SB 2 JTAG_TMS
3 GND 4 JTAG_TCK
5 GND 6 JTAG_TDO
7 GND 8 JTAG_TDI
9 GND 10 JTAG_TRSTB
3.3.17 Debug UART connector
Debug UART Connector - J31
Pin Signal
1 3P3V
2 DUART_RX
3 DUART_TX
4 GND
Please consider that UART debug interface is at TTL electrical level; therefore, please evaluate well the typical scenario of application. If it isn't explicitly required to
interface directly at TTL level, for connection to standard serial ports commonly available (like those offered by common PCs, for example) it is necessary to use an
RS-232 transceiver module. SECO can provide such an adapter, which is part of the optional accessories of the board. Please also check paragraph 4.2.1.
SBC-A62-J
SBC-A62-J User Manual - Rev. First Edition: 1.0 - Last Edition: 2.3 - Author: S.B. - Reviewed by N.P. Copyright © 2016 SECO S.r.l.
On customer specific request, the board can be equipped with a connector reporting the JTAG signals
coming from the i.MX6 processor, which can be useful for software debugging and tracing in
development phase. This optional connector is a 10-pin dual row male connector, type MOLEX
p/n 87832-1020 or equivalent, with pinout shown in the table on the left.
Mating connector: MOLEX 51110-1050 crimp housing with MOLEX 50394 series crimp
terminals.
All these JTAG signals are directly connected to i.MX6 pins with same name. Please refer to i.MX6 processor's
documentation for a description of the signals and their usage.
Onboard, the connector J31 carries out signals related to Debug Serial Port, which is managed by NXP
i.MX6 UART2 internal controller, with signals available at TTL level..
The connector is a 4-pin MOLEX p/n 53398-0471 or equivalent, with pinout shown in the table on the
left. Mating connector: MOLEX 51021-0400 receptacle with MOLEX 50079-8000 female crimp
terminals.
Signals' description:
DUART_TX: Debug UART Interface, Serial data Transmit (output) line, 3P3V electrical level.
DUART_RX: Debug UART Interface, Serial data Receive (input) line, 3P3V electrical level.
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