[Arm-netbook] Handheld Games Console

Luke Kenneth Casson Leighton lkcl at lkcl.net
Tue Sep 22 14:14:58 BST 2015


On Tue, Sep 22, 2015 at 1:12 PM, GaCuest <gacuest at gmail.com> wrote:

>> The only solution I can think is to put the BMA250 in the second PCB and connect directly
>> to STM32F and configure it as a USB device. I do not know if this is easy to do for us (software
>> development) and solve the problem of EINTs.

 making a GPIO an EINT on the STM32F, then reading I2C, then sending a
few bytes of data as a USB event, it's about... 30-40 lines of code.
if it's any more than that, you're doing something *drastically*
wrong.

>>
>> Thanks.
>
> Also I found the following FFC cable: http://aliexpress.com/store/product/Free-Shipping-FPC-FFC-connector-cable-socket-6-pin-0-5mm-connector-for-LCD-screen-interface/428886_1251083253.html
>
> Do you recommend use that connector or other (cheaper) connector?

 honestly it's up to you.  personally i just went for standard 0.254mm
connectors, because that *really* makes it easy for developers.
however, they're quite big, you need to get R/A ones, and i believe
those could well be more expensive than a 6pin FFC.

 so it is your decision, you know what the goal is, available space,
target price and target market.

 l.

> Thanks.
>
>>
>> >
>> > l.
>> >
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