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--- projects:crazyradio:spi_programming [2013-05-27 20:18]
arnaud [Usage]
+++ projects:crazyradio:spi_programming [2018-10-17 12:04]
arnaud
@@ Line 63: / Line 63: @@
 </code>
+===== Using BusPirate =====
+<WRAP center round alert>
+**WARNING**
+This script will mass erase the nRF24 chip so it will erase the bootloader. Make sure you have a backup of the bootloader before using this script.
+Unless you are absolutely sure of what you are doing, **do not use this script**.
+</WRAP>
+It's possible to re-program the Crazyradio using a BusPirate and [[https://github.com/koolatron/buspirate_nrf24lu1p|this script]] via SPI.
+Couple of caveats:
+  * Tested only on OS X. Should work on Linux without modification, and Windows with very minor changes to use the windows serial module.
+  * It's very slow (~5 minutes to flash the entire .bin file). I deemed this acceptable as this script is for emergency recovery only. I can make it faster if necessary.
+Prerequisites:
+  * A Bus Pirate (you should know where to get one of these, if you don't already have one).
+  * perl and either Device::SerialPort (*nix) or Win32::SerialPort (Windows)
+  * Some jumper wires to connect the SPI lines on the radio to the ones on the Bus Pirate.
+Instructions:
+  - Solder a 2x5 pin header onto the programming port of the crazyradio. There's an unpopulated footprint already there for you.
+  - Connect the crazyradio to your Bus Pirate using the table below (also noted in the script and readme on git) <code>
+Bus Pirate       CrazyRadio
+===========================
+MOSI ()      ->  MOSI  (6)
+MISO ()      ->  MISO  (8)
+SCK  ()      ->  SCK   (4)
+CS   ()      ->  CS    (10)
+AUX  ()      ->  PROG  (2)
+V3  ()      ->  3V3   (5)
+GND  ()      ->  GND   (9)
+</code>
+  - Run the script: perl ./flasher.pl -input ./cradio-0.51.bin -device [serial device]
+  - Wait till you see lots of hex addresses crawling up your screen. Your device is programming.
+  - Go make a sandwich or have a beer (or both).

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