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Baud rate and ADC sampling frequency
npat_avr wrote:I am using hyperterminal to see the output.Does hyperterminal show the total byte count received? If so, that would be a sanity check. Have your device run for x...
Friday, 22 January 2010 - 02:32
Baud rate and ADC sampling frequency
Disclaimer: The HUGE assumption here is that your device is continuously sampling and sending with no delay between bytes or messages. Can you be sure that there is no delay...
Friday, 22 January 2010 - 01:01
Baud rate and ADC sampling frequency
npat_avr wrote:I am getting 6 samples/cycle in my captured waveform. Assuming that each "bar" in your plot is one sample, I agree that it is close to 6. My money is that it is...
Thursday, 21 January 2010 - 23:13
Interface Serial flash memory with SPI
For sure. A logging device is a good example. If you can sample many times a second and write to flash between samples, your limit is indeed the size of flash. If the overhead...
Tuesday, 19 January 2010 - 22:53
Interface Serial flash memory with SPI
pank_spectross wrote:is there any limitation of memory size? You seem to be getting the message that memory size is effectively unlimited. That is the answer to the question you...
Tuesday, 19 January 2010 - 21:44
Baud rate and ADC sampling frequency
npat_avr wrote:How do I verify if the frequency of the signal I get on my PC is 1 Hz? Just look at the byte locations that correspond to your zero crossing a/d values. If the a/d...
Tuesday, 19 January 2010 - 21:26
Charlieplexing - A smarter way?
jayjay1974 wrote:every entry the values swap jayjay1974 wrote:The left number (call it L) is a sequence that starts at 0, increments up to X, when L equals X, L is reset to 0 and...
Tuesday, 19 January 2010 - 20:50
AVR Built in WatchDog Timer Reliability
handaza wrote:I want a reliable WatchDog timer, I had a bad experiance when I was working with PIC mircocontroller that on power up the PIC didnt make self reset and also the...
Friday, 7 August 2009 - 15:00
WARNING: Signature does not match selected device!
Noelia wrote:This is the text in the uC package: TOP: ATMEGA1280 16AU 0638 BOTTOM: 6G2663 355B4A 1-P 0638 e3Are you surprised that the parts are nearly 3 years old? Your...
Tuesday, 21 July 2009 - 16:15
WARNING: Signature does not match selected device!
theusch wrote:Quote: So, I think that there is a problem with this atmega1280 production, or not? Are you absolutely sure that the fuses are set identically?If protection is not...
Friday, 17 July 2009 - 16:33
I/O between controllers?
ArnoldB wrote:DocJC wrote:Perhaps others will comment on the value selected if this technique is utilized.It is easy to calculate from the max. current that can be sourced /...
Thursday, 16 July 2009 - 18:12
Which serial bus to use?
Quote:I2C? Ethernet? RS-485?There are criteria missing. Are all the devices on the same PCB? I2C? Is it a "high" data rate over a "long" distance? Ethernet? Is it a "moderate"...
Thursday, 16 July 2009 - 15:03

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