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Alveo U25 Debug Connector to Xilinx JTAG and UART and I2C Adapter

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Work-In-Progress : Design manufactured and works but a footprint is incorrect.

AlveoU25_JTAG_Adapter

Alveo U25 Debug Connector to Xilinx JTAG, UART, and I2C.

Alveo U25 JTAG Adapter

The Adafruit 4471 footprint I used is off by 0.1". Its headers had to be soldered at an angle to work.

Footprint is Incorrect

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

Alveo U25 JTAG Adapter in Use

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

Tracing Alveo U25 JTAG Signals

Schematic

Schematic

PCB Layout

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 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.

Alveo U25 to Xilinx JTAG Adapter

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Alveo U25 Debug Connector to Xilinx JTAG and UART and I2C Adapter

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