
Jlink tagConnect adapter v3
Fescron/universal-jlink-adapter
20 pin SWD/JTAG J-Link to 10 pin (0.1" and 0.05") reconfigurable Cortex-M header with power supply and TagConnect compatibility, as well as with a reset button.

20 pin SWD/JTAG J-Link to 10 pin (0.1" and 0.05") reconfigurable Cortex-M header with power supply and TagConnect compatibility, as well as with a reset button. (Info about about J-Link Commander and Segger RTT is also given.)
Jlink tagConnect adapter v4 is an open-source printed circuit board by Fescron, from the Fescron/universal-jlink-adapter repository on GitHub. It is a 2-layer board of 48.3 × 30.5 mm with 21 parts on 22 nets, routed with 139 tracks and 12 vias.
Its parts include 5 connectors, 1 capacitor, 1 resistor and 1 switch. It belongs with the interfaces and adapters and microcontroller boards boards of this library.

This is an old version of the board and was never really used since it didn't follow the J-Link Needle adapter pinout. It's kept here for documentation purposes.
One can plug this 4cm x 5cm adapter board in a J-Link debugger along with a 10 pin Tag-Connect adapter cable on the IDC connector. The cable will then have the approximate pinout (RXD instead of pin 7 NC) of the standard 9-pin Cortex-M SWD/JTAG pinout from J-Link. The pinout of the Tag-Connect cable can be seen on the picure below (and for reference also on the bottom of the adapter board, but its pins aren't connected).
J1 and J2 can be used to break out the SWD/JTAG pins to a 2.54mm standard header.SW1 can be used to mannually reset the target board.J4 to supply the target board with the correct voltage using the 5V supply of the J-Link programmer.
VIN - VOUT - GND, the last two pins can be changed around by swapping the solder joints on JP1 and JP2 on the bottom of the adapter. Then the pinout VIN - GND - VOUT will be selected.J6 and J7 can also be used to swap some pinouts around. J6 connects pin 4 on the Tag-Connect cable to RXD or doesn't connect it. J7 connects pin 5 on the Tag-Connect cable to nothing or to nTRST (JTAG).| Component | Value |
|---|---|
| J1 | 01x07 Male pinheader |
| J2 | 01x03 Male pinheader |
| J3 | 02x10 Female IDC connector (DigiKey link) |
| J4 | 01x03 Female pinsocket |
| J5 | 02x05 Male IDC header |
| J6 | 01x03 Male pinheader (+ jumper) |
| J7 | 01x03 Male pinheader (+ jumper) |
| R1 | 1 kΩ 0805 Resistor |
| R2 | 100 Ω 0805 Resistor |
| C1 | 100 nF 0805 Capacitor |
| SW1 | 2 pin SPST tact switch |
| Qty | Value | Footprint | References |
|---|---|---|---|
| 4 | Jumper_2_Bridged | Connector_PinHeader_2.54mm:PinHeader_1x02_P2.54mm_Vertical | JP4, JP5, JP8, JP9 |
| 3 | Jumper_3_Bridged12 | Connector_PinHeader_2.54mm:PinHeader_1x03_P2.54mm_Vertical | JP3, JP6, JP7 |
| 2 | SolderJumper_3_Bridged12 | Jumper:SolderJumper-3_P1.3mm_Bridged12_Pad1.0x1.5mm_NumberLabels | JP1, JP2 |
| 1 | 100 nF | Capacitor_SMD:C_0603_1608Metric_Pad1.08x0.95mm_HandSolder | C1 |
| 1 | 100 Ω | Resistor_SMD:R_0603_1608Metric_Pad0.98x0.95mm_HandSolder | R1 |
| 1 | Conn_01x02_Pin | Connector_PinHeader_2.54mm:PinHeader_1x02_P2.54mm_Vertical | J5 |
| 1 | Conn_01x03 | Connector_PinSocket_2.54mm:PinSocket_1x03_P2.54mm_Vertical | J4 |
| 1 | Conn_02x05_Odd_Even | Connector_PinHeader_1.27mm:PinHeader_2x05_P1.27mm_Vertical | J3 |
| 1 | Conn_02x05_Odd_Even | Connector_IDC:IDC-Header_2x05_P2.54mm_Vertical | J2 |
| 1 | Conn_02x10_Odd_Even | Connector_PinSocket_2.54mm:PinSocket_2x10_P2.54mm_Horizontal | J1 |
| 1 | SW_Push | Button_Switch_THT:SW_PUSH_1P1T_6x3.5mm_H4.3_APEM_MJTP1243 | SW1 |
| 1 | SolderJumper_2_Bridged | Jumper:SolderJumper-2_P1.3mm_Bridged_Pad1.0x1.5mm | JP10 |
| 1 | Symbol_OSHW-Logo_11.4x12mm | BrechtVE_Aesthetics:OSHW-Logo_5.7x6mm_SolderMask | G1 |
The 19 most common of 21 parts.

Fescron/universal-jlink-adapter
20 pin SWD/JTAG J-Link to 10 pin (0.1" and 0.05") reconfigurable Cortex-M header with power supply and TagConnect compatibility, as well as with a reset button.

Fescron/universal-jlink-adapter
20 pin SWD/JTAG J-Link to 10 pin (0.1" and 0.05") reconfigurable Cortex-M header with power supply and TagConnect compatibility, as well as with a reset button.

Fescron/universal-jlink-adapter
20 pin SWD/JTAG J-Link to 10 pin (0.1" and 0.05") reconfigurable Cortex-M header with power supply and TagConnect compatibility, as well as with a reset button.

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It measures 48.3 × 30.5 mm and has 2 copper layers, 1.6 mm thick.
21 parts. The full list of its parts is on this page, with links to each part's symbol and footprint where PCBKit's library has them.
From the Fescron/universal-jlink-adapter repository on GitHub, at the commit this page was made from: the board is hardware/jlink-tagConnect-adapter-v4/jlink-tagConnect-adapter-v4.kicad_pcb and its schematic hardware/jlink-tagConnect-adapter-v4/jlink-tagConnect-adapter-v4.kicad_sch. PCBKit opens the board in the browser, with nothing to install.
Its repository states no licence, so its author keeps all rights: ask Fescron before reusing the design.