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...
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...
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...
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...
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...
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...
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...
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...
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,...
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...
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...
How about a digital oscilloscope ? Ability to store/retrieve waveforms, perform math functions on waveforms. Remote data acquisition system ? Trigger on programmable event, or...
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.
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