Seco Qseven CQ7-D59 User Manual page 50

3.3.20 Optional Manufacturer and Debug Connectors
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According to Qseven specifications, on MXM connector there are some pins that are reserved for manufacturing and debugging purposes (MFG_NC0÷MFG_NC4).
These signals are reserved to the manufacturer of the Qseven CPU module, so it is not recommended to use them. Anyway, as a factory option, they can be available
on two different connectors.
MFG_NCx signals can be used, by the Qseven
about the proper assignment of JTAG / UART signals to the MFG_NCx signals (although the assignment shall correspond to that defined by the Qseven
specifications).
JP1 position MFG_NC1 and MFG_NC2
routed to
Not inserted Manufacturer connector CN2
Inserted Debug USB port CN27
Manufacturer Connector - CN2
Pin Signal
1 +3.3V_ALW
2 MFG_NC3
3 MFG_NC0
4 MFG_NC1
5 MFG_NC2
6 MFG_NC4
7 GND
debug USB port. This is obtained by converting the debug UART signals to USB, using a Silicon Labs
For this purpose, it is necessary that debug UART signals are routed to the bridge, by using the jumper JP1, as specified in the table above.
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By using Silicon Labs VCP drivers, available at http://www.silabs.com/products/interface/usbtouart/Pages/usb-to-uart-bridge.aspx, the debug USB port will be
exploitable by any COM port application, running on the Qseven
have to work in device (i.e. client) mode.
CQ7-D59
CQ7-D59 - Rev. First Edition: 1.0 - Last Edition: 1.1 - Author: S.O. - Reviewed by S.B. Copyright © 2021 SECO S.p.A.
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module, as a JTAG port or Debug UART. Please refer to the User manual of the Qseven
Moreover, debug UART signals (available on MFG_NC1 and MFG_NC2 pins of Qseven
connector), can be routed to a standard connector or to an USB-to-UART bridge, which will allow the
implementation of a more useful debug USB port. Selection is made using jumper JP1, according to the table
on the left.
The first optional connector, CN2, is a 1.25mm pitch connector, type MOLEX p/n 53398-0771 or equivalent.
Mating connector: MOLEX 51021-0700 receptacle with MOLEX 50058 or 50079 crimp terminals.
Please be aware that Debug UART, when routed to this connector (on pins dedicated to signals MFG_NC1
and MFG_NC2) will be available at TTL level, i.e. it cannot be used for a direct connection to a common RS-
232 serial port (like those available on PCs).
The second optional connector, CN27, is a standard mini-B USB receptacle, which will give access to the
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module, exactly like if it were a standard serial port. Please remember that Qseven
® CP2104 USB-to-UART bridge.
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module for information
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card edge
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module will
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