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Using only MOSI for SPI and using MISO as a GPIO pin?
mondalaci wrote: Maybe bit-banging will be my only option if I run out of all pins. If you cam map in INPUT pin to that MISO, then you have a couple of choices : * Reading the...
Saturday, 15 June 2013 - 00:39
Finding Frequency from Period, speed up process
DocJC wrote:I guess I am missing part of the concept here. If you wish to measure the frequency why are you using an inherently slow ADC with a "large" step size to sample the...
Tuesday, 11 June 2013 - 11:41
Finding Frequency from Period, speed up process
chaveiro wrote: Freq is supposed to be calculated every cycle, then integrated than average is calculated outside critical code at required user event. Err, so why not simply...
Monday, 10 June 2013 - 00:08
RTC clock instability making the timing way off
cpirius wrote: I found one chip that is way off, and loses about 10 seconds in time every minute. That is so bad, it could even be a bad solder joint. How many show this symptom ?
Sunday, 9 June 2013 - 01:08
Help with PWM frequency
DanielCardiel wrote: All the ideas your´re giving me are soo good :), but the problem is because the time i cannnot change the hardware, i need to work with this. If you are...
Tuesday, 4 June 2013 - 21:54
Help with PWM frequency
DanielCardiel wrote: i think that a diference of .1khz every step would be perfect, but i´m not sure if that´s possible. And Yes, is for a resonant tank. I´m tying to avoid to...
Tuesday, 4 June 2013 - 10:14
Help with PWM frequency
DanielCardiel wrote: About the frequency, is for an inductor. Do you mean a resonant circuit ? An inductor is not frequency-paranoid. To be worried about fractions of a percent,...
Tuesday, 4 June 2013 - 07:35
Help with PWM frequency
DanielCardiel wrote: For example the last 2 161 -> 91,9 160 -> 92,2 159 -> 92,6 But, What can i do if i want for example 92 or 92.4 i dont need all the frequencies, i...
Tuesday, 4 June 2013 - 00:27
Microcontrollers with good ADC specifications?
toalan wrote: Been through those already, I am gearing up to star working with the silabs stuff. I just wanted to see if there are any oddball uCs out there that I should know...
Tuesday, 4 June 2013 - 00:12
Microcontrollers with good ADC specifications?
toalan wrote: I am looking for microcontrollers with good ADC specifications; DNL Max, INL Max, Offset Max, Linearity. Precision onboard Vref would be a nice bonus. Good &...
Monday, 3 June 2013 - 03:26
Ground-bounce when driving MOSFET
HLAverik wrote: So I played around with differernt values for R-gate and the R in series with the cable. 1kOhm has resolved the issue due to resulting increase in rise-time. All...
Monday, 3 June 2013 - 01:33
Should I use PWM instead?
paul23 wrote: I looked in to PWM but it seems that is fixed frequency depending on the Fcpu and prescaler, so that doesn´t help, unless there is a way to be able to modify the...
Monday, 3 June 2013 - 01:20

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