2 layers25 × 10 mm Udap usb c, the printed circuit board in 3D

Udap usb c

A small CMSIS-DAP probe, based on the pinout of the dap42 firmware.

Size: 25 × 10 mm
Copper layers: 2
Thickness: 0.7 mm
Parts: 26
Nets: 46
Pads: 111
Tracks, vias: 229, 45
Pours: 4
Routed: Yes
KiCad: KiCad 5 (file 20171130)
Created: 12 Aug 2019
Updated: 26 Sep 2019

Overview

Udap usb c is an open-source printed circuit board by korken89, from the korken89/micro-dap repository on GitHub. It is a 2-layer board of 25 × 10 mm with 26 parts on 46 nets, routed with 229 tracks and 45 vias.

It is built around the MIC5245-3.3YM5, LTST-C191KGKT and MF-FSMF050X-2. Its parts include 5 capacitors, 5 resistors, 4 ICs, 3 diodes and 2 connectors. It belongs with the STM32 boards of this library.

Main components

README

README.md

Micro CMSIS-DAP Probe (µDAP)

A small CMSIS-DAP probe, based on the pinout of the dap42 firmware.

Changes

v1.0

First release

Resources

Schematics

TODO

Programming instructions

The first time you connect the probe (if it has not been flashed yet) it will come up in DFU bootloader mode, and the following instructions will flash the probe:

console

# Clone and build the firmware
git clone --recursive https://github.com/devanlai/dap42.git
cd dap42
make

# Flash the probe
cd build
dfu-util -d 1209:da42,0483:df11  -a 0 -s 0x08000000:leave -D DAP42.bin

Which should give the following output:

console

# ....

DFU mode device DFU version 011a
Device returned transfer size 2048
DfuSe interface name: "Internal Flash  "
Downloading to address = 0x08000000, size = 15764
Download	[=========================] 100%        15764 bytes
Download done.
File downloaded successfully
Transitioning to dfuMANIFEST state

Now the probe is ready to use with OpenOCD using the following config file for nrf52, but you can replace it with any supported target:

text

# openocd_dap.cfg

source [find interface/cmsis-dap.cfg]
transport select swd
source [find target/nrf52.cfg]

Usage

Using the previous config:

console

openocd -f openocd_dap.cfg

Should give an output similar to:

console

Open On-Chip Debugger 0.10.0+dev-00924-g16496488d (2019-08-18-15:42)
Licensed under GNU GPL v2
For bug reports, read
	http://openocd.org/doc/doxygen/bugs.html
Info : Listening on port 6666 for tcl connections
Info : Listening on port 4444 for telnet connections
Info : CMSIS-DAP: SWD  Supported
Info : CMSIS-DAP: FW Version = 1.0
Info : CMSIS-DAP: Interface Initialised (SWD)
Info : SWCLK/TCK = 1 SWDIO/TMS = 1 TDI = 0 TDO = 0 nTRST = 0 nRESET = 0
Info : CMSIS-DAP: Interface ready
Info : clock speed 1000 kHz
Info : SWD DPIDR 0x2ba01477
Info : nrf52.cpu: hardware has 6 breakpoints, 4 watchpoints
Info : nrf52.cpu: external reset detected
Info : Listening on port 3333 for gdb connections

Images

alt text

Parts

Qty	Value	Footprint	References
5	Test_Point	TestPoint:TestPoint_Pad_D1.0mm	TP1, TP2, TP3, TP201, TP202
3	100n	passive:C_0402	C1, C3, C4
3	470	passive:R_0402	R1, R2, R202
3	LTST-C191KGKT	leds:LEDC1608X60	D1, D2, D201
2	4.7u	passive:C_0603	C2, C5
2	5.1k	passive:R_0402	R3, R201
1	Conn_02x04_Counter_Clockwise	connectors:2x4_2.54mm_side	J201
1	Ferrite_Bead_Small	passive:R_0402	FB101
1	MF-FSMF050X-2	passive:R_0603	F1
1	MIC5245-3.3YM5	sot:SOT-23-5	U2
1	NUF2042XV6T1G	dfn:DFN-6-1EP_1.2x1.6mm_P0.5mm	U4
1	NUF6401MNT1	dfn:DFN-12-1EP_1.35x3mm_P0.5mm	U201
1	STM32F042F6Px	sop:TSSOP-20_4.4x6.5mm_P0.65mm	U202
1	USB_C_Plug	usb:USB_C_Plug_Molex_1054440001	P1

Questions

How big is the Udap usb c PCB?

It measures 25 × 10 mm and has 2 copper layers, 0.7 mm thick.

What parts does the Udap usb c use?

26 parts, built around the MIC5245-3.3YM5, LTST-C191KGKT and MF-FSMF050X-2. 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.

Where can I download the Udap usb c KiCad files?

From the korken89/micro-dap repository on GitHub, at the commit this page was made from: the board is udap-usb-c.kicad_pcb. PCBKit opens the board in the browser, with nothing to install.

Can I use the Udap usb c design in my own project?

Its repository states no licence, so its author keeps all rights: ask korken89 before reusing the design.

Category and platform

STM32

Project files

Show this board on your page

A live frame, for any web page

<iframe src="https://pcbkit.io/embed/boards/korken89-micro-dap" title="Udap usb c in PCBKit" width="100%" height="480" style="border:0;border-radius:12px" allow="fullscreen" loading="lazy"></iframe>

A picture

<img src="https://pcbkit.io/embed/boards/korken89-micro-dap.jpg" alt="Udap usb c" width="1200" height="900">

A picture that opens the board, for a README

[![Udap usb c](https://pcbkit.io/embed/boards/korken89-micro-dap.jpg?size=s)](https://pcbkit.io/boards/korken89-micro-dap)

Source

Repository: korken89/micro-dap
Board file: udap-usb-c.kicad_pcb
Commit: e6f04d0
Licence: Not stated
Copies: 2 copies in 1 repository

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