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cpldcpu / u-wire

Smallest possible USB compliant device with V-USB
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Recieving instead of Sending #1

Closed TCWORLD closed 8 years ago

TCWORLD commented 9 years ago

Hi,

I wonder if it would be possible to modify this to send data back to the computer instead of the other way around. I can see such a thing being very useful - maybe a tiny data logger, or to connect a one-wire temp sensor. Could even get it to enumerate under the HID class as a keyboard and have it send keystrokes.

I have quite a bit of experience making code as small as possible (and writing in assembler), and with V-USB (modified the HIDSerial repository to fit into an attiny2313 as a USB-USART adapter), so I don't mind doing the coding for such an idea, but I am interested in your opinion as it would depend on how you have modified VUSB - presumably you've removed a large amount of stuff from it.

cpldcpu commented 9 years ago

Well yes, in principle that would be possible. However, the applications would be fairly limited due to the lack of remaining SRAM.

Actually, little-wire already supports this kind of functionality. It would be easier to use that as a starting point.