Ton Giesberts
About the article

OnCE/JTAG Interface

Program and debug Freescale DSPs

OnCE/JTAG Interface
To help with the programming and debugging of the DSP board used in our DSP course, Elektor Labs designed a small adapter that can be used to connect the board to a PC via a modern, fast USB connection. This adapter can also be used in combination with other Freescale DSPs from the DSP56K series.
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Gerber file

CAM/CAD data for the PCB referred to in this article is available as a Gerber file. Elektor GREEN and GOLD members can exclusively download these files for free as part of their membership. Gerber files allow a PCB to be produced on an appropriate device available locally, or through an online PCB manufacturing service.

Elektor recommends its business partner Eurocircuits as the company of choice for its own prototypes and volume production in selected cases.

Download the BOM list
The BOM (Bill of Materials) is the technically exhaustive listing of parts and other hardware items used to produce the working and tested prototype of any Elektor Labs project. The BOM file contains deeper information than the Component List published for the same project in Elektor Magazine. If required the BOM gets updated directly by our lab engineers. As a reader, you can download the list here.
Want to learn more about our BOM list? Read the BOM list article for extra information.
Component list
Resistors (SMD 0805, 0.1W)
R1,R2 = 10Ohm 5%
R3 = 1kOhm 5%
R4 = 12.0kOhm 1%
R5,R6,R7 = 10kOhm 5%
R8 = 2.2kOhm 5%
R9,R10 = 4.7kOhm 5%
R11 = 270Ohm 5%
R12 = 560Ohm 5%
Capacitors (SMD 0805)
C1,C2 = 27pF 50V 5%, NP0
C3 = 3.3µF 10V 10%, X5R
C4,C5,C6,C8,C10–C16 = 100nF 50V 10%, X7R
C7,C9 = 4.7µF 6.3V 10%, X5R
Spoelen (SMD 0805)
L1,L2 = 600Ohm @ 100MHz, 200mA/0.35Ohm (e.g. Murata BLM21BD601SN1D)
D1,D2 = PGB1010603, Vclamping = 150V (Littelfuse, SMD 0603)
D3 = LED, green (Kingbright KPHCM-2012CGCK, SMD 0805)
D4 = LED, red (Kingbright KPHCM-2012SURCK, SMD 0805)
IC1 = FT2232HL-R (FTDI, SMD 64-pin LQFP)
IC2 = 93LC46B/SN (Microchip, SMD SO-8)
IC3 = CD74AC244M (Texas Instruments, SMD SO-20)
K1 = USB-B connector, right angled, PCB mount
K2 = 14-pin (2x7) IDC socket, lead pitch 0.1 in.
X1 = 12MHz, Cload 18pF ±30 ppm, HC-49S
PCB # 110534-1
Assembled, programmed and tested board: # 110534-91

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