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  1. Lanfeust23

    C Programming with ATtiny12

    ATtiny12 is supported by WinAVR but in assembly code only not in C. I have the lastest version, so .... But I've found another solution : a ImageCraft software called ICCTiny. Great for all ATtiny, it support C without problems.
  2. Lanfeust23

    C Programming with ATtiny12

    Hi, Somebody knows how programming ATtiny12 in C language because when I compilated my code WinAVR said "ATtiny12 is not supported by the compiler" and I don't enjoy to learn assembler just for a little programm. Thanks.
  3. Lanfeust23

    Help with my first C program.

    tomand: Try the compiler WinAVR from http:\\www.avrfreaks.com
  4. Lanfeust23

    Pin change interrupt on ATtiny12 from ATMEL

    Hi, I've a probleme to really understand how works the "Pin change interrupt" on the ATtiny12 from ATMEL. In fact, in the datasheet, I see that ..."The pin change interrupt is triggered by any change on any input or I/O pin. Change on pins PB2..0 will always cause an interrupt. Change on pins...
  5. Lanfeust23

    crystal value for wireless transmitter

    The receiver is the one ATMEL matched with : the T5744 receiver!
  6. Lanfeust23

    crystal value for wireless transmitter

    I've seen that but I thought it was weird to give such a range, I supposed if the value changes so much, emitting frequencie changes also and I have to change also the receiver one. Just a last question : what means 20ppm ? Thank you for your help !
  7. Lanfeust23

    crystal value for wireless transmitter

    I read it but not enough carefully if you say the answer is in there. (and I don't know what do you speak about app note ! I only read datasheet !)
  8. Lanfeust23

    crystal value for wireless transmitter

    There is only one company which sell the good crystal : Crystek. And the probleme is that it's the only one item I need to buy in Crystek and it will cost a lot for only one item. But I need several other items I found in Digikey (and not in Crystek), which is faster for me !
  9. Lanfeust23

    crystal value for wireless transmitter

    Hi, I need to use a 13.125MHz crystal for the AT86RF401 transmitter from ATMEL and I would like to know if this value must be respected exactely or can be changed, because I only found a 13.0625 MHz crystal. Thanks
  10. Lanfeust23

    There is microcontroller for 2 inputs edge capture ?

    I know it's not a very great resolution but I think it will be enough. In fact,I can't do much better because after I will send information by RF (I need wireless application) and I'm limited by its bandwith (only 5kps).
  11. Lanfeust23

    ATMEL T5744 demodulation mode

    Hi, I need to use the T5744 RF receiver from ATMEL (matching with the RF transmitter AT86RF401) and I have a question about the demodulator. Into the datasheet, it's written that the T5744 supports various types of protocols and especially Manchester code which interests me (Protocol used by the...
  12. Lanfeust23

    ATMEL T5744 demodulation mode

    Hi, I need to use the T5744 RF receiver from ATMEL (matching with the RF transmitter AT86RF401) and I have a question about the demodulator. Into the datasheet, it's written that the T5744 supports various types of protocols and especially Manchester code which interests me (Protocol used by the...
  13. Lanfeust23

    There is microcontroller for 2 inputs edge capture ?

    I calculated, and with an acceptable accuracy I fixed myself, a 1MHz clock for the microcontroller will be right.
  14. Lanfeust23

    There is microcontroller for 2 inputs edge capture ?

    In fact, my 2 signals (from an ADXL202 accelerometer) are PWM signals with a periode of 1ms. Moreover, the 2 signals are 'synchronized' because they use the same triangle wave reference in the duty cycle modulator. If I am unclear again, here is the link to the application note of Analog Devices...
  15. Lanfeust23

    There is microcontroller for 2 inputs edge capture ?

    Hi, I'm looking for an ATMEL microcontroller which can do edge capture input on 2-inputs. I only found some ones which do edge capture on only one input but I need to do this on 2 inputs (I have two signals). Thanks to tell me if that I'm looking for exists.
  16. Lanfeust23

    Using wireless for acquisition of accelerometers MEMS

    Hi, I use accelerometers MEMS (ADXL202 from Analog Devices) to calculate velocity of a 4 arms robot. So, I would like to know how I could transmit signals between the robot and PC. I've thought to use (small ... otherwise the MEMS technology doesn't matter ... and low cost) RF wireless but I...
  17. Lanfeust23

    Spec. of a IR LED

    Thanks but I would not use the IRDA protocol. I have just a signal I would like to transmit as fast as I can. I said 4Mb/s because I known its possible with this protocol but without any protocol (just untreated binary signal), what is the limit ? I have not datasheet about my LED so I just want...
  18. Lanfeust23

    Spec. of a IR LED

    Ya, I admit my question is not clear. I just would like to know if I can transmit a 4MHz signal using infrared LED. I mean, LEDs have surely rise time which limits the data rate of transmision ?
  19. Lanfeust23

    Spec. of a IR LED

    Hello, I just want to know what is the nominal range (in average) in emitting frequency for the Infrared LED. I guess if its should be more than 4MHz. Thanks
  20. Lanfeust23

    Filter a noisy signal

    Hello, I've done acquisition of a mems accelerometer with Labview to make signal processing with Matlab and I've just a little more signal than noise. the fundamental frequence of this signal is normaly around 1Hz and when I make a simple lowpass filter I obtain a strange result : I'd like just...

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