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40mhz frequency counter with atmega8 pfad: home avr overview applications frequency counter 40mhz frequency counter with atmega8 this application of an avr describes a frequency counter with atmel s atmega8 with the following properties: digital and 40mhz frequency counter with atmega8 pfad: home avr overview applications frequency counter 40mhz frequency counter with atmega8 this application of an avr describes a frequency counter with atmel s atmega8 with the following (...)40mhz frequency counter with atmega8 pfad: home avr overview applications frequency counter 40mhz frequency counter with atmega8 this application of an avr describes a frequency counter with atmel s atmega8 with the following (...)
40 mhz frequency counter with an atmega8 source code pfad: home avr overview applications frequency counter software software for the frequency counter ; ; frequencycounter rpm meter and voltmeter ; for atmega8 at 16 mhz crystal clock frequency ; wit40 mhz frequency counter with an atmega8 source code pfad: home avr overview applications frequency counter software software for the frequency counter ; ; frequencycounter rpm meter and voltmeter ; for atmega8 at 16 mhz (...)40 mhz frequency counter with an atmega8 source code pfad: home avr overview applications frequency counter software software for the frequency counter ; ; frequencycounter rpm meter and voltmeter ; for atmega8 at 16 mhz (...)
avr tutorial path: home avr overview tutorial for learning assembly language for the avr single chip processors at90s atmega and attiny from atmel with practical examples. the single chip processors of atmel are excellent for homebrewing every (...) commands: lpm stack jumps macros small applications: a dcf77 synchronized clock a pcm to pwg decoder a terminal controlled frequency generator a digital signal generator with frequency/pulse width adjust and lcd an eggtimer as a gift a steppermotor clock application converting an analog voltage to digital using the stk500 board the on board analog comparator and timer/counter 1 as pulse width generator connectinga 4 3 keypad to an avr and sensing using port connections or with a resistor matri
sitemap of http://www.avr asm tutorial.net sitemap of http://www.avr asm tutorial.net english section english mainpage beginner s introduction to avr assembler language beginner s intro in one pdf file: beginner_en.pdf hardware for programming (...) signals terminal controled signal generator digital signal generator source code main html source code lcd html source code frequency table html source code asm schematic frequency counter 9 modes 16 mhz xtal source code html source code asm scheme generator source code main html source code lcd html source code frequency table html source code asm schematic frequency counter 9 modes 16 mhz xtal source code html source code asm scheme processor unit gif preamp/prescaler gif eggtimer with attin
avr applications path: home avr overview applications avr single chip processor at90sxxxx of atmel in practical examples. the following examples are small applications to test and use these processors practically and to demonstrate their (...) analogue voltage of 0 to 5 volts. pcmdec pwgsio pwgsio pulse generator generates exact signals of a desired duration and frequency times are controlled by input from an ansi compatible terminal program via the sio of the chip e.g. on the stk200 boar width display on lcd applying an atmega8 with adc channels xtal source clock etc. rectgen fcount_m8_v3 fcount_v03 frequency counter with atmega8 nine modes 16 mhz xtal description scheme preamp eggtimer_asm eggtimer eggtimer with an attiny2313v as a
at90s2313 zip file 27c801 eprom programmer project 2 wire lcd interface using pic16cf84 40 mhz 5 digit frequency counter with an avr 2313 4 channel timer using atmel 89c4051 and max7219 display driver 50 mhz frequency counter voltage meter swr/pwr i 128x64 lcd driver for at90s2313 zip file 27c801 eprom programmer project 2 wire lcd interface using pic16cf84 40 mhz 5 digit frequency counter with an avr 2313 4 channel timer using atmel 89c4051 and max7219 display driver 50 mhz frequency counter v driver for at90s2313 zip file 27c801 eprom programmer project 2 wire lcd interface using pic16cf84 40 mhz 5 digit frequency counter with an avr 2313 4 channel timer using atmel 89c4051 and max7219 display driver 50 mhz frequency counter voltage mete
jesper s avr pages jesper s avr pages so finally i ve managed to put some stuff here. i hope to add more in the future. avr chatboard new easily convert an ericsson chatboard into a small keyboard for your avr projects. yaap a (...) an ad202xl based g meter. put it in your car and measure horsepower and 0 60 mph times. countermeasures a 40 mhz 5 digit frequency counter with an avr 2313 and 3 ttl chips. uc/os ii port for avr gcc a port for avr gcc of the popular uc/os ii realtim programmable avr s phew accelr8 in progress an ad202xl based g meter. put it in your car and measure horsepower and 0 60 mph times. countermeasures a 40 mhz 5 digit frequency counter with an avr 2313 and 3 ttl chips. uc/os ii port for avr gcc a port
power supplies ac/dc inverters ac/dc converters battery chargers remote control pc related test & measurement pic / atmel / avr usb circuits telephone related led miscellaneous circuits stepper motors latest schematics dual channel 70v pic voltmeter performance identify weaknesses and come up with a new ba1404 transmitter design that improves sound quality has very good frequency stability maximizes transmitter s range and is fairly simple for everyone to build. we are happy to announce that th box and connect the ground of the circuit to the box to reduce noise effect. 1ghz frequency meter this is 1ghz frequency counter with 100khz resolution. meter is built in around pic16f84a microcontroller and sab6456 / u813bs prescaller. 1w linear fm
power supplies ac/dc inverters ac/dc converters battery chargers remote control pc related test & measurement pic / atmel / avr usb circuits telephone related led miscellaneous circuits stepper motors schematics page 2 of 6: 1 2 3 4 5 6 1.5w vhf amp assembling pack it into a proper metallic box and connect the ground of the circuit to the box to reduce noise effect. 1ghz frequency meter this is 1ghz frequency counter with 100khz resolution. meter is built in around pic16f84a microcontroller and box and connect the ground of the circuit to the box to reduce noise effect. 1ghz frequency meter this is 1ghz frequency counter with 100khz resolution. meter is built in around pic16f84a microcontroller and sab6456 / u813bs prescaller. 1w linear fm
power supplies ac/dc inverters ac/dc converters battery chargers remote control pc related test & measurement pic / atmel / avr usb circuits telephone related led miscellaneous circuits stepper motors schematics page 4 of 6: 1 2 3 4 5 6 bh1415f fm s tendency speaking to go up roughly 30 35 . low pass filter for fm 88 108 mhz filter used for eliminate unwanted harmonic frequency at second and third. notch filter band pass filter bpf and high pass filter hpf sometime combined in constructing lpf band consequently we have applied the bf signal directly on the control voltage line coming from the pll. prescaler with counter digital frequency counter is being used for wide range of applications. digital frequency counter extensively (...)
ibutton lcd module with mcs 51 thermometers dallas semiconductor work with eeprom 24lcxx msp430 with flash memory atmega169 and avr baterfly can interface usb interface ????? ???? ?? ?? ?????? ?? ? ????? ? ?? ? ??? ? tester in circuit electrolytic tester pic octopus oscilloscope test adapters super octopus & esr test adapter project 120mhz frequency counter 12v lead acid battery monitor 220v live wire in wall scanner 220v live wire in wall scanner 3 12 mhz signa circuit electrolytic tester pic octopus oscilloscope test adapters super octopus & esr test adapter project 120mhz frequency counter 12v lead acid battery monitor 220v live wire in wall scanner 220v live wire in wall scanner 3 12 mhz signal generato
find general use software snippets and libraries for calculations and internal purposes. code snippets and utility libraries avr related protothreading timing millis input / output storage communication general math tutorials and resources avr relat randomhat choose every number from a hat before repeating randomwalk stepsize wander between endpoints at a specified rate frequency related frequency generation frequency generation using a hardware timer to drive a pin accurately or (...) synthesizer without additional coding. also see interfacing with hardware/output/audio frequency measurement arduino frequency counter pulse width determination tutorials and resources these aren t code for a particular function but rather tutorials
avr pwm adc test for stk500 pfad: home avr overview pwm adc tutorial for learning avr assembler language of avr single chip processors at90sxxxx of atmel using practical examples. simple 8 bit analog digital converter with pwm (...) compilation it runs on a command line. the source code avr_pwm1.pas can be compiled with a compiler to yield an executable. the frequency that the pwm runs with can be calculated for 8 bits resolution as f pwm clockfrequency / 510 9 bit: 1022 10 bit converter. the build in analog comparator is used here to compare an input voltage with a voltage produced with the timer/counter 1 tc1 in pwm mode. this compare voltage is adjusted until the result is as accurate as 8 bit resolution requires. tc1 w
r/2r network as dac for an avr path: home avr overview r/2r dac tutorial for learning avr assembler language of avr single chip processors at90sxxxx of atmel using practical examples. simple 8 bit digital to analog converter (...) triangle is a similiarly easy task: just counting up and down. the source code can be downloaded here . it allows adjusting the frequency by changing the value of the constants delay and the upper bound by adjusting the constant maxamp . ; ; r/2r ne tutorial.net ; ; .include 8515def.inc ; ; register definitions ; .def rmp r16 ; multipurpose register .def rdl r17 ; delay counter ; ; constants ; .equ maxamp 127 ; maximum amplitude setting .equ delay 1 ; delay higher value causes lower frequency ;
tools for avr assembly programing path: home english assembler intro tools tools for avr assembly programing this page provides informations about the necessary tools that are used to program avrs with the stk200 board. programming with the (...) options . the following options will be selected: in the device selection section we select the desired chip type. the correct frequency should be selected if you like to simulate correct timings. in order to view the content of some registers and w processor and registers. the display should now look like this: the processor window displays all values like the command counter the flags and the timing information here: 1 mhz clock . the stop watch can be used to measure the necessary time for g
details of relevant ports in the avr path: home avr overview assembler introduction ports details introduction to avr assembler programming for beginners the table of the relevant ports in the atmel avr types at90s2313 2323 (...) clock phase 2 cpha clock phase 0: sampling at beginning of clock phase 1: sampling at end of clock phase 1 spr1 sck clock frequency 00: clock / 4 01: clock / 16 0 spr0 10: clock / 64 11: clock / 128 port function port address ram address spsr spi st interrupt maskregister 0x39 0x59 7 6 5 4 3 2 1 0 toie1 ocie1a ocie1b ticie1 toie0 bit name meaning opportunities 7 toie1 timer/counter 1 overflow interrupt 0: no int at overflow 1: int at overflow 6 ocie1a timer/counter 1 compare a interrupt 0: no i
program control in the avr assembler language path: home avr overview assembler intro program control introduction to avr assembler programming for beginners controlling sequential execution of the program here we discuss all commands that (...) required time to execute one instruction is equal to the processor s clock cycle. if the processor runs on a 4 mhz clock frequency then one instruction requires 1/4 s or 250 ns at 10 mhz clock only 100 ns. the required time is as exact as the xtal c reset? when the power supply of an avr rises and the processor starts its work the hardware triggers a reset sequence. the counter for the program steps will be set to zero. at this address the execution always starts. here we have to have our first
avr tutorial part 3 path: home avr overview tutorial part 3 ; test 3: learn more about the timer in polling mode ; new things to learn here: ; timer in polling mode ; mov command .nolist .include 8515def.inc .list ; universal register definition .def he reaches zero ; the software counter in incremented and displayed on the leds. ; 256 timer ticks equal 65.536 ms or a frequency of 15.25878906 hz. loop: in mp tcnt0 ; read the 8 bit timer 0 cpi mp 0 ; test for zero brne loop ; if not zero return t here: ; timer in polling mode ; mov command .nolist .include 8515def.inc .list ; universal register definition .def mp r16 ; counter for the number of time outs of the timer .def z1 r0 ; reset vector to adress 0000 rjmp main ; main program starts he
avr hardware tutorial: sio use path: home avr overview hardware sio ; tests the serial communication port ; ; sends a text over the serial communication port of an avr with ; 9k6 8n1 and echoes incoming characters on the sio port of an (...) text ; or equivalent terminal program with ansi ; .nolist .include 8515def.inc .list ; ; constants ; .equ fq 4000000 ; xtal frequency .equ baud 9600 ; baudrate .equ bdteiler fq/ 16 baud 1 ; baud divider ; ; registers ; .def mpr r16 ; universal regis 9600 ; baudrate .equ bdteiler fq/ 16 baud 1 ; baud divider ; ; registers ; .def mpr r16 ; universal register .def nc r17 ; counter .def c r18 ; character ; ; reset / interrupt vector rjmp main ; main: ldi mpr bdteiler ; baudgenerator out ubrr mpr ;
dcf77 uhr mit dem avr controller at90s2313 pfad: home avr bersicht anwendungen dcf77 uhr ; ; dcf synchronized digital clock for rs232 communication on ; a 2313 experimental board version 0.2 as of 12.01.2001 ; features: xtal driven digital clock for .nolist .include c: avrtools appnotes 2313def.inc .list ; ; constants ; ; constants for sio properties .equ fq 10000000 ; xtal frequency on board in hz .equ baud 9600 ; baudrate for sio communication .equ bddiv fq/ 16 baud 1 ; baudrate divider .equ with lpm ; sio tx buffer in pointer .def rsiotxin r1 ; registers for the dcf77 receiver option .def rdcfp r2 ; parity bit counter for dcf signals .def rdcf1 r3 ; last receiver shift register .def rdcf2 r4 ; receiver shift register .def rdcf3 r5 ; re
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