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authorMartin Braun <martin.braun@ettus.com>2015-07-28 09:37:02 -0700
committerMartin Braun <martin.braun@ettus.com>2015-07-28 09:37:02 -0700
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@@ -334,6 +334,10 @@ It is possible to put the device into an unusable state by loading bad images ("
Fortunately, the USRP-X Series device can be loaded with a good image temporarily using the USB-JTAG interface.
Once booted into the safe image, the user can once again load images onto the device over Ethernet or PCI Express.
+See Section \ref x3x0_load_fpga_imgs_jtag on how to load the FPGA image onto the device using a JTAG interface.
+After running the JTAG process, a new image can be flashed onto the device using the usual procedure
+to permently recover the device.
+
\section x3x0_setup_network Setup Networking
The USRP-X Series only supports Gigabit and Ten Gigabit Ethernet and will not work with a 10/100 Mbps interface.
@@ -580,6 +584,10 @@ Please see \ref page_gpsdo_x3x0 for information on configuring and using the int
\image html x3x0_gpio_conn.png "X3x0 GPIO Connector"
+The GPIO port is not meant to drive big loads. You should not try to source more than 5mA per pin.
+
+The +3.3V is for ESD clamping purposes only and not designed to deliver high currents.
+
### Pin Mapping
- Pin 1: +3.3V