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ACIA/UART (6551) current equivalent
I'm looking for suggestions for a current equivalent (i.e. available!) to the ancient 6551 serial i/o UART... basically, I need a parallel memory mapped interface, baud rates at...
Friday, 22 February 2008 - 08:52
[TUT] [PC] [AVR] [SOFT]Understanding bi-phase-mark coding
Biphase-Mark encoding and decoding - a short guide. Biphase-Mark encoding is sometimes recommended as a communication method to get data from one place to another. This guide is...
Saturday, 1 December 2007 - 00:43
Another plastic mounting issue
So as not to hijack the plastic box thread... I have a similar request but with a different end in mind. I have a requirement which must finish with an exact sized flat plate...
Thursday, 22 November 2007 - 03:17
Generic multiple power supply chip
I'm looking for something that I'm not sure exists... for my OLED display, I need 3.3v for the processor and logic, 7, 10, and 12v for the various OLED power supplies, and all...
Tuesday, 13 November 2007 - 22:16
What's this connector?
Okay, I'm baffled... how on earth is one supposed to attach this display to a board? The connector is a flex, with a cleared space, and the wires are on a 1mm centre, but I can't...
Friday, 9 November 2007 - 22:17
Anyone used memory addressing with LCD/OLED?
For example, on the Mega2561 or similar with the olde worlde 8080 memory interface: multiplexed address 8-15 and data 0-7, an ALE signal, and separate ~RD and ~WR signals? It's an...
Wednesday, 17 October 2007 - 11:36
Assistance with displaytech 32128 LCD please?
Folks, I'm trying to use a displaytech 32128 LCD display (http://www.rswww.com part number 627-1668) which as far as I can see from the minimalist data sheet on the same page...
Thursday, 11 October 2007 - 23:23
74HC and 74 HCT pull up values
Any recommendations for an ideal value? I have an HCT541 buffering a signal output and being switched by a clock. When the clock tristates the outputs I need to maintain the...
Wednesday, 22 August 2007 - 13:41
Searching for LCD modules in the UK
Folks, I'm looking *hard* for 122*32 (or 120*32) LCD modules, preferably with SED1520 controllers (though I can live with others) and *definitely* with +5v supply (no negative...
Monday, 4 June 2007 - 21:50
ATTiny13 and RESET/PB5
Ok, I ought to know this, but I can't find an answer in the datasheet... How does the ATtiny13 (and by extension, the other similar devices) know whether a low on the reset pin is...
Wednesday, 2 May 2007 - 21:25
An odd M32 failure...
Here's a new one on me; I have an M32 with both a hardware and a software uart, and an LCD graphics display. I've made dozens, same software, same hardware, no changes. The...
Monday, 11 December 2006 - 08:33
FT232 query
Folks, I'm intending to update an existing AVR board to use an FTDI FT232BM instead of an RS232 interface; the RS232 is implented in software (I'm using the UART for other stuff)...
Sunday, 24 September 2006 - 08:39

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