Mspdebug can be used to program this device using its `eZ FET lite' interface, however, it doesn't appear to work reliably.
Mspdebug with the tilib interface does seem to work reliably, yet, if ez-fet mode was attempted before-hand the board will need a power cycle.
MSP430 Flasher can program this device using TI TEXT files. It has the same issue if mspdebug eZ-FET mode was attempted previously, so do not do that.
RST GND 5V 3V3 RxD TxD SBW SBW S3 eZ-FET Spy-Bi-Wire RST TST 3V3 5V P3.7 GND P1.2 GND P3.6 P5.7 UCA3RXD P6.1 P3.0 P3.5 P4.4 UCA3TXD P6.0 P3.1 P3.4 P5.3 P6.2 P3.2 P7.3 RST P1.3 P3.3 P2.6 P5.0 P5.2 P1.4 P2.5 P5.1 P6.3 P1.5 P4.3 P8.3 UCB2SCL P7.1 P4.7 P4.2 P8.2 UCB2SDA P7.0 P8.0 P4.1 P8.1 SUPERCAP J8 USE 3V3 CHARGE P5.6 P5.5 S1 S2 LED1 J7 GND GND GND GND 5V microSD 3V3 LEDS RED P1.0 LED1 GREEN P1.1 LED2 eZ-FET VCP TxD P2.0 UCA0TXD RxD P2.1 UCA0RXD microSD DETECT P7.2 MOSI P1.6 UCB0SIMO MISO P1.7 UCB0SOMI CS P4.0 CLK P2.2 UCB0CLK
MSP430FR5994 LaunchPad Development Kit - Product page
MSP430FR5994 LaunchPad Development Kit - User manual
MSP430FR599x, MSP430FR596x Data-sheet
MSP430FR58xx, MSP430FR59xx, MSP430FR6xx Family User's Guide
MSP-EXP430FR5994 Software Examples
Migrating from the USCI Module to the eUSCI Module