• on Microcontrollers
  • Published in issue 3/2016 on page 75
About the article

Universal JTAG Programmer / Debug Adapter

With several MCU target connections

Universal JTAG Programmer / Debug Adapter
This handy device for ARM/MSP430 is a feature-rich multi-mode programming and debugging adapter for embedded systems. Used with a standard J-Link or MSP-FET programmer, the device offers three options to connect to your target without requiring expensive and/or large headers on the target device. Dual USB-to-serial converters can be used in conjunction with the programmer or standalone.
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Component List
Resistors
All SMD0603, 1%, 0.1W
R1,R3 = 1.2kOhm 1%, 0.1W
R2,R11,R12,R17,R18 = 390Ohm
R4,R6,R21,R22,R23,R24 = 100kOhm
R5 = 698kOhm
R7,R8,R10,R16 = 10kOhm
R13,R14,R19,R20 = 33Ohm
R9,R15 = 0Ohm
Capacitors
C1,C2 = 1µF 16V, X5R, ceramic, SMD 0603
C3,C9 = 33nF 25V, X7R, SMD 0603
C4,C6,C10,C12 = 100nF, 25V, X5R, SMD 0603
C5,C11 = 10µF, 10V, X5R, ceramic, SMD 0805
C7,C8,C13,C14 = 47pF, 50V, C0G, SMD 0603
Semiconductors
D1,D7,D11 = LED, blue, SMD 0603
D2,D5,D9 = LED, green, SMD 0603
D3 = LED, red, SMD 0603
D4,D8 = 1N5819HW-7-F, SOD-123
D6,D10 = LED, yellow, SMD 0603
U1 = MCP1824T-ADJE/OT, SOT-23 (Microchip)
U2,U3 = FT230XS-R, SSOP-16
U4 = IP4220CZ6,125, TSOP-6
Miscellaneous
J1,J2 = micro-USB 2.0 type-AB R/A PCB connector, SMD with legs
J3,J11,J12 = 4-pin (2x2) pinheader, 0.1" pitch
J4 = USB 2.0 type-A R/A PCB connector
J5 = 14-way (7x2) female terminal connector, SMD, 0.05" pitch
J6 = 20-pin (10x2) boxheader, 0.1" pitch
J7 = 10-pin (5x2) pinheader, 0.1" pitch
J8 = 14-pin (7x2) pinheader, 0.1" pitch
J9,J10 = 3-pin pinheader, 0.1" pitch
8 jumpers, 0.1" pitch
S1 = 6mm tactile switch SPST-NO, SMD
Ready-assembled board # 150511-91 available from Elektor Store
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