Products
-
-
- Accessories
- Breakout boards
Sidebar
projects:crazyradio:spi_programming
This is an old revision of the document!
Table of Contents
Crazyradio SPI programming
nrfProg
nrfProg is a command line programmer for the nRF24LU1p (called nRF in this page). It uses the Amontec JTAG Key jtag dongle as a USB to SPI dongle.
This program is using libftdi to communicate with the JTAG Key. It is tested only on Linux.
Cable
The cable is made as follow:
| JTAG sig | FTDI sig | JTAG Key pin | nRF Breakout pin | nRF SPI sig |
|---|---|---|---|---|
| GND | N/A | GND/20 | GND | GND |
| VREF | GPIOL1/19 | VREF/1 | VIN | VCC |
| TCK | TCK/24 | TCK/9 | P0.0 | SSCK |
| TMS | TMS/21 | TMS/7 | P0.3 | SCSN |
| TDI | TDI/23 | TDI/5 | P0.1 | SMOSI |
| TDO | TDO/22 | TDO/13 | P0.2 | SMISO |
| TRST | GPIOH0/15 | TRST_N/3 | PROG | PROG |
| SRST | GPIOH1/13 | SRST_N/15 | RESET | RESET |
This cabling permit to reset the nRF in program mode or in run mode from nrfProg. The SPI outputs are not activated when the nRF is in run mode.
Cable for USB Radio dongle Rev.B
| Amontec JTAG pin nr | Radio pin nr |
|---|---|
| 20 | 9 |
| 1 | 5 |
| 9 | 4 |
| 7 | 10 |
| 5 | 6 |
| 13 | 8 |
| 3 | 2 |
| 15 | 3 |
Usage
nrfProg can program, dump and display the content of the flash memory. It can also reset the nRF and halt it (by maintaining the reset active).
Launch the program without argument for help.
$ ./nrfProg
nrfProg V0.01 - nRF24LU1 programmer using the Amontec JTAG Key
Usage: ./nrfProg <COMMAND> <PARAMETERS>
Commands:
help:
Display this message
read <filename> [addr] [len]:
read the memory and write a dump in filename
write <filename> [addr]:
write the content of the binary <filename> into the nRF24LU flash.
hexdump [addr] [len]:
Display a hex dump of the memory
reset:
Reset the nRF24LU1+
holdreset:
Hold the reset (ie. stop) the nRF24LU1+
projects/crazyradio/spi_programming.1369678711.txt.gz · Last modified: 2015-07-15 16:30 (external edit)
Except where otherwise noted, content on this wiki is licensed under the following license: CC Attribution-Share Alike 4.0 International
