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-rw-r--r--host/docs/usrp2.rst21
1 files changed, 15 insertions, 6 deletions
diff --git a/host/docs/usrp2.rst b/host/docs/usrp2.rst
index 0ddcaa4e5..d07175ce4 100644
--- a/host/docs/usrp2.rst
+++ b/host/docs/usrp2.rst
@@ -11,9 +11,14 @@ Load the images onto the SD card
Use the usrp2_card_burner.py with caution. If you specify the wrong device node,
you could overwrite your hard drive. Make sure that --dev= specifies the SD card.
-Use the *--list* option to get a list of possible raw devices.
-The list result will filter out disk partitions and devices too large to be the sd card.
-The list option has been implemented on Linux, Mac OS X, and Windows.
+**Warning!**
+It is possible to use 3rd party SD cards with the USRP2.
+However, certain types of SD cards will not interface with the CPLD:
+
+* Cards can be SDHC, which is not a supported interface.
+* Cards can have unexpected timing characteristics.
+
+For these reasons, we recommend that you use the SD card that was supplied with the USRP2.
^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Use the card burner tool (unix)
@@ -28,6 +33,10 @@ Use the card burner tool (unix)
sudo ./usrp2_card_burner.py --dev=/dev/sd<XXX> --fpga=<path_to_fpga_image>
sudo ./usrp2_card_burner.py --dev=/dev/sd<XXX> --fw=<path_to_firmware_image>
+Use the *--list* option to get a list of possible raw devices.
+The list result will filter out disk partitions and devices too large to be the sd card.
+The list option has been implemented on Linux, Mac OS X, and Windows.
+
^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Use the card burner tool (windows)
^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
@@ -97,7 +106,7 @@ Run the following commands:
::
cd <prefix>/share/uhd/utils
- ./usrp_addr_burner --addr=192.168.10.2 --new-ip=192.168.10.3
+ ./usrp_burn_mb_eeprom --args=<optional device args> --key=ip-addr --val=192.168.10.3
**Method 2 (Linux Only):**
This method assumes that you do not know the IP address of your USRP2.
@@ -179,8 +188,8 @@ The LEDs reveal the following about the state of the device:
* **LED B:** undocumented
* **LED C:** receiving
* **LED D:** firmware loaded
-* **LED E:** undocumented
-* **LED F:** FPGA loaded
+* **LED E:** reference lock
+* **LED F:** CPLD loaded
^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^