is there serial access

[ed2k]

I read the quick-start-2 page says host usb port is not operating, would that be fixed in late firmware update?
without host usb port, is there other serial access. what tool do I need.

[aolofsson]

There is a 3 pin serial port header next to the Ethernet connector.

Andreas

[timpart]

Based on the schematic and NC7WZ16 spec
Pin 1 transmit from Epiphany logic levels 0 and 3.3 volts
Pin 2 receive (can take up to 5.5 volts in typical use)
Pin 3 ground

I have no way to verify this, so use at your own risk.

Tim

P.S. the schematic refers to the connector being PBC36SAAN but this seems to be 36 way.

[ed2k]

thanks, good to know I have a fall back plan when the network stop working.

[gceline]

This is correct - J2 next to the Ethernet connector is a 3 pin serial header. The pins are marked on the pcb - closest to the Ethernet is Tx and GND is closest to the edge of the board.
A standard USB to serial adapter like this one should work great.
http://www.adafruit.com/products/954?gc ... 7AodtXIAOQ

[ed2k]

is it as simple as a direction connection like this,
board edge side,
gen1 GND ----------------- usb black line, GND
gen1 RX ------------------- usb green line, D+
gen1 TX --------------------usb white line, D-
near rj45,

I tried (with ethernet cable connected), my ubuntu x86-64 can not recognize it as /dev/ttyACM0 (this is how I connect to zedboard UART), even though there is 3V signal coming out.

[mhonman]

In the case of the zedboard there is a USB-to-serial adapter on the zedboard itself - hence all one needs is a USB cable from PC to zedboard.

Those pins on the IIa are a serial port rather than a USB port, thus if you have a PC with a serial port, connect that to the pins on the ||a - TxD of one port to RxD of the other and vice-versa

If your PC does not have a serial port, then you need a gizmo like that linked to by Graham (in that particular case the USB-to-serial adapter chip is concealed inside the moulded USB plug). There are other sources for this kind of adapter, although that one is particularly neat.

[tnt]

[magorian]

OK, with one board console broken and doesn't show up on nmap with fresh image, tried hooking up the serial port header with two different usb-serial adapters (which showed up as valid COMs) at speeds from 9600 to 115K w/o luck. Is the serial port known to work with gen1 boards?

Dan

[9600]