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mirror of git://projects.qi-hardware.com/ben-blinkenlights.git synced 2025-02-03 18:11:06 +02:00
Werner Almesberger 5817669968 ubb-vga: try to clock MSC faster than the MMC bus; new video mode "640x480/61"
- ubb-vga.c (mode_db): added new mode "640x480/61"
- ubb-vga.c (setup, line): MSC_CLKRT is reset when the MSC resets. Moved
  it from "setup" to "line".
- ubb-vga.c (clkrt, setup, line): pick the highest available MSC clock
  and adjust the bus clock divider accordingly
- ubb-vga.c (main): added commented-out clock debugging output
- README: added XEN-1510T result for "640x480/61"
2011-05-03 10:19:16 -03:00
2010-09-01 04:02:24 -03:00
2011-01-31 19:02:50 -03:00
2011-01-31 19:02:50 -03:00
2011-01-17 12:45:42 -03:00

Ben Blinkenlights
=================

This project is a proof of concept implementation of Rikard Lindstrom's
idea of using the Ben's 8:10 card slot as a general extension interface
also for devices that don't speak MMC or SD/SDIO. The application is a
simple LED circuit, as suggested by David Samblas.

The 8:10 card slot gives access to six GPIOs, a 3.3 V supply that can
be switched on and off by software, and ground. We use a simple form of
multiplexing to drive ten LEDs with this interface.

Note that one should only light one LED at a time. If multiple LEDs are
lit, they will share the current though the common resistor, and will
thus be less bright than a single LED.
Description
Blinkenlights, Demonstrate the use of the uSD slot for DIY hardware
http://projects.qi-hardware.com/index.php/p/ben-blinkenlights/
Readme 402 KiB
Languages
C 84.9%
Makefile 7.3%
Perl 3.2%
Shell 2.2%
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