greeeg 460 Posted June 9, 2014 Share Posted June 9, 2014 (edited) I recently built my own ezFET lite based of the files that TI have made available. Update 9/06: Works "kinda" as expected. Board disconnects from USB when a target board is attached and is being powered by the ezFET Orange LED is 10x brighter than green LED. Will correct resistor values in next rev. Programming works. Unfortunately I do not have a target board to test out the UART bridge yet. Board is panelized, and fits in a 5cm square. This is the first time I've done this, copper pour gets very close to the edge when the boards are cut. Downloads: ezFet_lite_tagConnect_0_01.zip Altium pcb/sch files, gerbers, schematic. Information below is old, was due to the custom BSL not being flashed to the MSP430. Unfortunately It doesn't work. The board is identical to the reference schematic, all component values are equal. The board enumerates fine, When I plug in a target board I get error, tilib: MSP430_Initialize: Interface Communication error (error = 35) If I connect a target then connect the USB the board throws error tilib: MSP430_OpenDevice: Unknown device (error = 5) Finally, If I try to force a fw update via mspdebug MSP430_GetNumberOfUsbIfs MSP430_GetNameOfUsbIf Found FET: COM3 MSP430_Initialize: COM3 Updating firmware using /cygdrive/e/eZ-FET lite rev 1.10 Release Package/Firmware/EZFET_LITE_Rev1_1_FW_3_3_0_6.txt Starting firmware update (this may take some time)... tilib: MSP430_FET_FwUpdate: Hardware State is unknown (error = 77) tilib: device initialization failed Does anyone have experience with the ezFET lite firmware? am I missing something obvious? I'll keep debugging this and report my findings. Edited June 9, 2014 by greeeg bluehash, Fred, RobG and 1 other 4 Quote Link to post Share on other sites
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