Work-In-Progress : Design manufactured and works but discovered the PCB needs to be 0.8mm (1/32") in order to fit between the Alveo PCB and heatsink. Third Revision is being manufactured.

AlveoU25_JTAG_Adapter

Alveo U25 Debug Connector to Xilinx JTAG, UART, and I2C. PCB must be manufactured with a 0.8mm (1/32") thickness.

I have successfully used it to debug and program an Alveo U25.

The pinout is not available publicly so the signals had to be traced out.

Schematic

PCB Layout

Bill Of Materials

Necessary:

Designator(s)	Part Number	Quantity	Footprint	Availability
U1	MEC8-113-02-L-D-RA1	1	MEC8-113-02-L-D	TrustedParts
J1	SBH21-NBPN-D07-ST-BK	1	SBH21-NBPN-D07-ST	TrustedParts
U5	74AVC4T774PW	1	TSSOP-16	TrustedParts
R14, R15	RNCP0603FTD10K0	2	0603	TrustedParts
C4, C5	CL10B104JB8NNNC	2	0603	TrustedParts
JP1, JP2	PPTC061LFBN-RC	2	1x06_2.54mm	TrustedParts
x	Adafruit 4471	1	None - Module	TrustedParts

Optional:

Designator(s)	Part Number	Quantity	Footprint	Availability
J5, J7	PPTC061LFBN-RC	2	1x06_2.54mm	TrustedParts
J3, J4	PPTC042LFBN-RC	2	2x04_2.54x2.54mm	TrustedParts
J6	PREC002DAAN-RC	1	2x02_2.54mm	TrustedParts
x, x	STC02SYAN	2	None - Jumper	TrustedParts

Previous Version

v0.1-alpha was a basic breakout board for the Alveo U25 Debug Connector. It was never manufactured or tested.

Only two components would have been required: MEC8-113-02-L-D-RA1 and SBH21-NBPN-D07-ST-BK.