Post Created date
phase sequence detector using avr
It's really quite easy. Sync on the rising edge of phase A. Then see which phase has a zero crossing (rising edge) next. If it's phase B, then the phase sequence is ABC. If it's...
Sunday, 15 July 2012 - 21:22
Guidance required for a device selection
Since you have chosen another path to follow grasshopper (in my best Chinese voice) you shall have to seek advice elsewhere from now on (like a STM32 forum). You should go the ST...
Thursday, 12 July 2012 - 04:13
TCL2543 ADC - Values are close but accuracy is terrible
To get good 12 bit results takes a bit of effort. A breadboard is certainly not a good environment to attempt this. However, here are things that you need to do to get better...
Wednesday, 11 July 2012 - 04:22
1 - WIRE or 2 - WIRE, SPI ?
I hate to be the nay-sayer (not really), but it always bothers me just a little bit when an embedded micro programmer reaches for a "library" instead of a "databook". You will...
Sunday, 8 July 2012 - 13:04
Chaining SPI
Quote:one thing to remember here is that unlike the '595 mentioned, the AVR's SPI is not a shift-through configuration, What ? This is not what the SPI block diagrams show in any...
Friday, 15 June 2012 - 21:34
Store a bit with the least amount of clock cycles.
Well, I had to work the numbers to see if a human could swipe a card faster than a 16MHZ RISC machine could read it (or even close). Here's the results. Track 1 has the most bits...
Tuesday, 12 June 2012 - 02:23
Guidance required for a device selection
You are going to have a real hard time finding micros that run in the 100MHZ to 600MHZ range at 5V. First, higher levels of integration (more features) require smaller fab...
Tuesday, 5 June 2012 - 13:10
Guidance required for a device selection
Although it may be bad forum etiquette to recommend a processor from another company, the OP's requirements are certainly beyond the ability of the AVR core to handle. Atmel may,...
Friday, 1 June 2012 - 02:04
AREF output problem
If you want to output the 2.56V internal reference to the AREF pin (so you can add a filter cap), then use the Reference Select bits in the ADMUX register. See Table 74 of the...
Monday, 28 May 2012 - 14:51
Help with a jittery Tiny13 ADC?Battery gauge.(almost there!)
Here are a few suggestions. First, the internal 1.1V "reference" is pretty poor as far as references go. You will be much happier using a good regulator/reference for VCC, and use...
Monday, 21 May 2012 - 02:08
can you suggest me a new project to create?
How about a digital oscilloscope ? Ability to store/retrieve waveforms, perform math functions on waveforms. Remote data acquisition system ? Trigger on programmable event, or...
Friday, 18 May 2012 - 22:09
how to perfectly design the input of many button,best select
Well, If I only had a dime for each "perfectly" designed piece of code that I had to go back and modify later, I would be a rich man.
Friday, 18 May 2012 - 02:43