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dap-cat-programmer's Introduction

CMSIS-DAP Cat Programmer

Description

An Open-Source CMSIS-DAP Debug Probe based on DAPLink. DAP Cat Programmer is a low-cost $4.99 dollars debug probe based on the CMSIS-DAP (also known as DAPLink) protocol standard and USB-Serial conversion, and it can realize USB conversion to serial interface. It can be used to program and debug the application software running on Arm Cortex Microcontrollers.

The probe comes with indicator LEDs, a button to reset the target or trigger the firmware update, a reversible USB-C connector, and an easy-to-use 10-pin 2.54mm Header.

Special Thanks

How to contribute

Contributions are welcome!

Please read the document Contribution Manual which will show you how to contribute your changes to the project.

✨ Thanks to all our contributors! ✨

See Electronic Cats CLA for more information.

See the community code of conduct for a vision of the community we want to build and what we expect from it."

License

LGPL

Electronic Cats invests time and resources providing this open source design, please support Electronic Cats and open-source hardware by purchasing products from Electronic Cats!

Designed by Electronic Cats.

Firmware released under an GNU LGPL v3.0 license. See the LICENSE file for more information.

Hardware released under an CERN Open Hardware Licence v1.2. See the LICENSE_HARDWARE file for more information.

Electronic Cats is a registered trademark, please do not use if you sell these PCBs.

29 Agu 2020

dap-cat-programmer's People

Contributors

andreazguz avatar elizabeth-0 avatar eric286 avatar felipeislas avatar jorgeuri avatar sabas1080 avatar wero1414 avatar wifixcort avatar xpeqex avatar

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Watchers

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Forkers

wifixcort tongdaren ziyangye hmsfeng kkstun robotlc cluso99 raypopo deepindiy hayiji allen0871 vusonbmt megamind4089 drraphael jeffhodev johnmazo stops-top xinshuwei xuanzihao eric286 jacksonys smarthobee612 wllis thangqv w-linus ubaidullahmomer qinxz1414 ppomaski

dap-cat-programmer's Issues

What's DAP_TransferAbort for?

Hi Mr. Cat,

First thanks for your great work. I have found a variable named DAP_TransferAbort which is not set as 1 forever. It seems the porting work has left out something there.

Board design questions

Hi.

I have 3 questions about your board design:

  1. Why do you use 2 F.Cu and 2 B.Cu Zone outlines instead of just use one for each side?
    2.There is a espetial reason for use 0.508 clearance instead a smaller one
    3.You make a big loop on 5V or A4 pin in the USB connector, is that really needed, because fisically is the same pin, I think it's not necesary, or I'm wrong?

If you change the rotation of some components it turn out a simplier PCB routing

Trouble with openocd-v0.12.0

When I updated openocd to 0.12 I'm to face a problem:

Open On-Chip Debugger 0.12.0 (2023-01-14-23:37)
Licensed under GNU GPL v2
For bug reports, read
        http://openocd.org/doc/doxygen/bugs.html
Info : auto-selecting first available session transport "swd". To override use 'transport select <transport>'.
Error: CMSIS-DAP command mismatch. Sent 0x0 received 0x3
Error: CMSIS-DAP command CMD_INFO failed.

In 0.11 version it wasn't:

Open On-Chip Debugger 0.11.0 (2021-03-07-12:52)
Licensed under GNU GPL v2
For bug reports, read
        http://openocd.org/doc/doxygen/bugs.html
Info : auto-selecting first available session transport "swd". To override use 'transport select <transport>'.
Info : CMSIS-DAP: SWD  Supported
Info : CMSIS-DAP: FW Version = 1.0.0
Info : CMSIS-DAP: Interface Initialised (SWD)
Info : SWCLK/TCK = 1 SWDIO/TMS = 1 TDI = 0 TDO = 0 nTRST = 0 nRESET = 1
Info : CMSIS-DAP: Interface ready
Info : clock speed 2000 kHz

Any ideas?

License question

README.md says,

Firmware released under an GNU AGPL v3.0 license. See the LICENSE file for more information.

The image says,

Software GPL-3.0-or-later

And the LICENSE file says,

GNU LESSER GENERAL PUBLIC LICENSE Version 2.1

Which is correct?

I believe in this case as ARM originating source files are licensed under Apache-2.0, rest of the firmware code ought to be LGPL .

Could you clarify this and fix the document? (I suppose the image can be just removed.)

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