When I connected the boards and powered them on, only 1 LED came on and the MMWCAS-DSP-EVM board is.
Texas Instruments Tiva C Series TM4C129x Microcontrollers is available at Mouser and will allow designers to develop a new class of highly connected products using the first ARM® Cortex®-M4 MCU with integrated Ethernet MAC+PHY, along with on-chip communication peripherals.The device contains all the RF circuity to transmit and receive 76-81 GHz FMCW (Frequency Modulated Continuous Wave) signals combined with both a TI C674x DSP and an ARM Cortex-R4F to handle all the RF signal processing and application code, respectively. Texas Instruments' XWR1642 is an integrated mmWave radar system in a single package.
Pricing and Availability on millions of electronic components from Digi-Key Electronics. AWR1642BOOST-ODS – AWR1642 Radar Sensor LaunchPad™ Platform Evaluation Expansion Board from Texas Instruments.