From e5fcd071437434919d5d67dd90a3958622dacff1 Mon Sep 17 00:00:00 2001 From: Josh Blum Date: Fri, 5 Nov 2010 20:32:16 -0700 Subject: usrp2: added notes about 3rd party sd cards to docs --- host/docs/usrp2.rst | 15 ++++++++++++--- 1 file changed, 12 insertions(+), 3 deletions(-) (limited to 'host/docs') diff --git a/host/docs/usrp2.rst b/host/docs/usrp2.rst index f0d1e2744..b617fcbf4 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 --fpga= sudo ./usrp2_card_burner.py --dev=/dev/sd --fw= +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) ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ -- cgit v1.2.3