This board is used for test LS for hikey at initial, but now we found it is also a good board for learning IO control. So if many people like it, I can ask LeMaker RD team to make more for open sale.
BR
Tony Zhang
Making Innovation Easy
LeMaker Team -- The Professional Makers for Hardware and Software Customization.
Address:Room 501, Building 17, Maker Town of University Town, No.1201 Liuxian Avenue, Nanshan District, Shenzhen, China
Post Code: 518000
Email:
support(a)lemaker.org(Technical Support)
product(a)lemaker.org(Product Distribution)
http://www.lemaker.org/
原始邮件
发件人:Grant Likelygrant.likely(a)secretlab.ca
收件人:tony.zhangtony.zhang@lemaker.org
抄送:mezzaninemezzanine@lists.96boards.org
发送时间:2015年12月15日(周二) 08:18
主题:Re: [Mezzanine] 96Boards LED mezzanine board with USB debug port
Very cool. Looks like a fun board. Are you planning to make this board available for sale? g. On Mon, Dec 14, 2015 at 11:33 AM, tony.zhang tony.zhang(a)lemaker.org wrote: Dear all, We have designed a led board with all the LS GPIO connect to the different LEDs on the board. And also we have a usb debug port on th led board. This board can be used for study the IO control and also so some simple led experiment. Here is the link of the documents in the google drive: https://drive.google.com/file/d/0BwWMLqyfoBdaclNfTy1QdVM2ZWc/view?usp=shari… I hope know if anyone have insterest on this. BR Tony Zhang Making Innovation Easy LeMaker Team -- The Professional Makers for Hardware and Software Customization. Address:Room 501, Building 17, Maker Town of University Town, No.1201 Liuxian Avenue, Nanshan District, Shenzhen, China Post Code: 518000 Email: support(a)lemaker.org (Technical Support) product(a)lemaker.org (Product Distribution) http://www.lemaker.org/ _______________________________________________ Mezzanine mailing list Mezzanine(a)lists.96boards.org https://lists.96boards.org/mailman/listinfo/mezzanine
Dear all,
We have designed a led board with all the LS GPIO connect to the different LEDs on the board. And also we have a usb debug port on th led board.
This board can be used for study the IO control and also so some simple led experiment.
Here is the link of the documents in the google drive:
https://drive.google.com/file/d/0BwWMLqyfoBdaclNfTy1QdVM2ZWc/view?usp=shari…
I hope know if anyone have insterest on this.
BR
Tony Zhang
Making Innovation Easy
LeMaker Team -- The Professional Makers for Hardware and Software Customization.
Address:Room 501, Building 17, Maker Town of University Town, No.1201 Liuxian Avenue, Nanshan District, Shenzhen, China
Post Code: 518000
Email:
support(a)lemaker.org(Technical Support)
product(a)lemaker.org(Product Distribution)
http://www.lemaker.org/
I just made the following change to the Rev C schematic after someone
blew up their board by connecting the Sensors board off-by-one.
However, I'm not entirely sure if it is a good idea. Full description
below, but the jist is I disconnected pin 40 from GND to prevent +12V
getting shorted to +5V. There are three other GND pins on the
connector, pin 1, 2 & 39. Do you think having one GND pin on the right
hand side of the connector provide a sufficient ground connection?
g.
Change description:
Protect baseboard if Sensors board is installed incorrectly
Disconnect pins 36 (PWR_IN) and 40 (GND) to protect the baseboard if P1
gets installed off-by-one. Keeping PWR_IN pins 36 and 38 tied together
will short +12V directly to GPIO_L (34) or GND (40) if the connector was
off by one. Having pin 40 attached to GND would cause +12V to be shorted
directly to the +5V rail. To protect the baseboard, remove these direct
connections. Using only one PWR_IN pin is more than sufficient for this
board because it isn't used for anything. There are also three other GND
pins on the connector rated at 2A each. Dropping one should not be an
issue.
These changes don't guarantee to protect the baseboard. 5V would still
get shunted to the 1.8V rail which may still destroy the board, but
there is at least a fighting chance of not frying something.
Things would be so much better if we had a keyed connector
Signed-off-by: Grant Likely <grant.likely(a)linaro.org>
