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Recent content by maggots

  1. M

    lm 339 comparator problem - output is low

    comparator problem... still i dont get it why this doesnt work... i using lm 339 as comparator ... i already set voltage reference right between 2 condition of voltage input but still the output is low(0V) with or without pullup resistor... i already check the connection the circuit is right...
  2. M

    please,,help,, my minimum system avr is jams

    no output from avr ports i'm using atmega 8535... my minimum system avr is used to fine..but now its jams in my minimum system avr, my microcontroller can programed but there is no voltage output... to check the problem,i use simple program that only give all port high (255) but still there is...
  3. M

    pwm output in atmega8535

    atmega8535 pwm pwm output in atmega8535 hi guys i want to ask another dummy question... common program but still i dont get it right...arrggghhh my problem is no output in OC1A(PD5) dan OC1B(PD4)... in my simulation in avr studio ... TCNT1 is counting but no effect in PORTD but there is...
  4. M

    P*otel 99 - what is autotrax file format ?

    autotrax file format hi guys i'm using P*otel 99 i want to know what is autotrax format... because if i open it with notepad... i have something like this PCB FILE 4 COMP U1 DIP8 ffff 315 415 60 0 0 7 309 481 60 0 0 7 340 360 1 1 1 CA 490 410 25 12 10 7 CP 340 360 50 50 2 32 1 13 1 CP 340 260...
  5. M

    protel 99 - what is autotrax format ? need explanation

    autotrax file format hi guys i'm using protel 99 i want to know what is autotrax format... because if i open it with notepad... i have something like this PCB FILE 4 COMP U1 DIP8 ffff 315 415 60 0 0 7 309 481 60 0 0 7 340 360 1 1 1 CA 490 410 25 12 10 7 CP 340 360 50 50 2 32 1 13 1 CP 340...
  6. M

    Help me find error in my attiny 2313 with max 232 board

    hi guys.. i know this quite simple..but i still get trouble with this... ok,first i have my old board(1 attiny 2313+ max232) which still work good (i assume... u can see why in my next explanation...) and my new board (1 attiny 2313+ max 232). the problem are : 1. in my old board, the program...
  7. M

    interfaching rs485 with atmega 128microcontroller

    atmega128 rs485 its looks like know alot about MPCM.. i have a problem can you help me..
  8. M

    HELP Multi-processor communication mode using attiny and vb6

    mpcm txb8 answer nomor 3: I am testing the MPCM mode(s) out just using a simple RS-232 between one attiny and one computer so i stil doesnt use max 491 answer nomor 4 if i using mpcm ...and mpcm bit is set then the slave cant communicate anything(i had test it...) answer nomor 2 good...
  9. M

    UART - Can I read data coming from a uart port

    Re: UART i dont know that avr studio can do that... but i know that code vision avr can uart and you dont have to use avr... you can use terminal(computer icon) in code vision avr ... but if you dont have the program ..you can use hyper terminal... thats good enough:D
  10. M

    HELP Multi-processor communication mode using attiny and vb6

    how set or reset a port attiny25 processor the file is only 4kb... vb code.. Private Sub Form_Load() UartCom.CommPort = 1 UartCom.PortOpen = True End Sub Private Function ComUart(Addr, Command, data1, data2 As Byte) As String Dim dummy Dim S As String ' Send Address...
  11. M

    help!!serial using vb6 (always display character '?')

    Hi laktronics... thx for your care... yesterday i know where is my bug... the bug is not in vb but my program in slave..(which i doesnt show to you..sorry) for change the parity, i must have change TXB8...(in attiny2313):D:D but will you help me again... i have another problem... here is the...
  12. M

    HELP Multi-processor communication mode using attiny and vb6

    attiny to attiny communication Hi guys.. thx for your care.. i have a project using computer as a master and 3 attiny2313 as slave.. they communicate with multi-processor communication mode(MPCM). Right now, i just try one attiny as slave and a computer as master. Another two attiny still...
  13. M

    help!!serial using vb6 (always display character '?')

    ya, its ASCII character... M stand for i'm setting parity is mark....I use mark cause i'm using Multi-processor communication mode(MPCM) in AVR ... so i can talk to many address(uC) using RS-485. In MPCM, first i must sending mark parity for give address of uC that i want to communicate...then...
  14. M

    help!!serial using vb6 (always display character '?')

    hey guys...thx for your time ... I have a project using another hardware device.The device communication with computer using serial port. first,If i try to connect it with hyperterminal program from windows ... it doesn't have problem.(my hardware ok..) but if try to connect to vb program the...
  15. M

    how to burn .hex to microcontroller with usb port

    usb brenner 8p i english i am sorry..for only give a little information... i use avr especially atmega... i am usually use code vision avr.. some times winavr.... thx for attention guys...
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