This repository contains a modified version of the hackrf one firmware designed to run on an LPC43xx ARM Cortex-M4 microcontroller. The changes here make it so on reset request (using hackrf_spiflash -R), the rf power and 1v8 power will also be reset. The hackrf one (at least the one I have) fails to correctly transmit gps I/Q data if the transmit has been started, stopped, then started again. This firmware patch fixes this issue.
The following dependencies are required for building the firmware:
- libusb-1.0-0-dev
- libfftw3-dev
- python-yaml
- cmake
- make
Additionally, download the latest gcc toolchain from here and add the bin/ directory to your path:
https://developer.arm.com/open-source/gnu-toolchain/gnu-rm/downloads
Finally, run ./build.sh from the root directory of this repository.
You can flash the firmware to your hackrf one with hackrf_spiflash -w hackrf_usb.bin