
Initialize MAX5864 earlier, in "transceiver" mode (where both ADC and DAC are active), and then shift SSP1 into MAX2837 mode and leave it there, for faster tuning and RX/TX switching.
The firmware is set up for compilation with the GCC toolchain available here: https://code.launchpad.net/gcc-arm-embedded Required dependency: https://github.com/mossmann/libopencm3