Differences

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--- roach2 [2018/02/09 16:03] – jrseti
+++ roach2 [2023/10/28 18:36] (current) – external edit 127.0.0.1
@@ Line 3: / Line 3: @@
 Jack Hickish gave me a Roach2 to try to test.
-===Links===
+==Links==
   * Jack says this is the image to use: acme1:/srv/tftpboot/uboot-roach2/uImage-r2borph3
@@ Line 9: / Line 9: @@
   * [[https://casper.berkeley.edu/wiki/Getting_Started_with_ROACH2]]
   * [[https://casper.berkeley.edu/wiki/ROACH-2_Revision_2]]
+  * [[https://github.com/F5OEO/rpidatv]]
+====The Roach board====
 I pluged in USB to the port labeled "FTDI USB". On my MAC "screen /dev/tty.usbserial-FA1302 115200" started the terminal session.
@@ Line 48: / Line 51: @@
   # Set the location of the ROACH's root filesystem on the NFS server.
-  dhcp-option=17,10.1.49.80:/srv/roach_boot/etch
+  #dhcp-option=17,10.1.49.80:/srv/boot_roach2/etch
+  dhcp-option=17,10.1.49.80:/srv/boot_roach2/squeeze_root.ppc
   # Set the boot filename for BOOTP, which is what the ROACH boots over
@@ Line 57: / Line 61: @@
   # Set the root directory for files availble via FTP.
-  tftp-root=/srv/roach_boot/boot
+  tftp-root=/srv/boot_roach2/boot
   # Set the DHCP server to authoritative mode (then keep away from other networks!)
@@ Line 64: / Line 68: @@
   #Specify which ethernet interface you use to connect to the ROACH (eth0, eth1, eth2 ...)
   interface=eth0
   #May be useful if you have several ethernet interfaces
   bind-interfaces
@@ Line 70: / Line 74: @@
   log-queries
   log-facility=/var/log/dnsmasq.log
+  server=8.8.8.8
+  server=8.8.4.4
+  dhcp-option=option:ntp-server,198.137.202.56,198.137.202.56,74.120.81.219,97.127.86.125
+Then to restart dnsmasq:
+  sudo /etc/init.d/dnsmasq restart
+mount -o remount,rw /
+Also had to install NTP, as the instructions at [[https://casper.berkeley.edu/wiki/ROACH_NFS_guide]]
+====The ADC boards====
+Here is the basic hardware description: [[https://casper.berkeley.edu/wiki/ADC2x1000-8]]
+====The 2GHz clock====
+I was able pr procure a $35 ADF4351_PLL board, from China, and control it with my Raspberry Pi. Here is a picture of the board tuned to 2GHz. This will be used for the clock input of the ADC board. This requires a 10MHz reference signal.
+The controller program is at [[https://github.com/F5OEO/rpidatv]], called adf4351
+To tune it to 2GHz: "./adf4351 2000.0 10000000"
+{{:img_2847_1_.jpg?600|}}