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I will use Timer Interrupt and counter. If counter < 3 second, increment counter. If keypad pressed, clear counter. ---------- Post added at 08:03 ---------- Previous post was at 07:58 ---------- I will use Timer Interrupt and counter. If counter < 3 second, increment counter. If keypad pressed, clear c
Hi My project is to to push button and the number should be incrementing by one every time. lets say the number is 25. When I pus button it should be 26, push again it is 27. Now how to show that on virtual terminal? Only idea that I have is standard c something like: if (button==1) num++; printf ("Number is now (...)
I want to increment a count and display in lcd, when pushbutton is pressed. button connected to PIN C0. It compiles successfully. In the display it shows count, but when i press push button it shows different characters at location 0x86 in the display. Please help... #include "18F2520.h" #fuses INTRC_IO #use (...)
use a counter and increment or decrement depending upon up/down button pressed. convert the integer value of counter to char and display it on LCD.
Hi apizbaygon It is very simple. make your RA0 pin input and make PORTB and PORTC output ports. Write the code for switch with debounce and increment a counter from 0 to 4. 0 will represent OFF and 1...4 represent 4 patterns. You should also make the pattern counter 0 if its value is > 4. Then you have to use a switch case or if...else if statemen
Hey Guys. I need to program a PIC16F872. I have a vague idea of how to program a PIC. I need to increment count when a button is pushed, there are three buttons, the "count"/amount of pushes should be displayed on an LCD. Then I need a toggle switch to display the total count (on an LCD) of that button which is stored in (...)
In layout go to the menu Option---->System settings Then fill the degree in Rotation increment
Lets say u run the spectre simulation and plot the AC gain in dB from 10Hz to 50MHz. 1. Invoke the calculator from the plot window 2. now press the "wave" button in the calculator and choose the AC dB plot to bring it into the calculator! 3. press the "printvs" button which will bring up a dialog box to print values from the plot according
Use that algorithm : ;-) Switch pushed ? - No --> loop - Yes --> x,xx sec. debounce tempo, increment variable, when timing variable oveflowed, goto : x,xx sec. counter Switch still pushed ? - No, goto... - Yes, Is counter variable overflowed ? - No, continue to count - Yes, increment variable, and loop. Re
Hi! I can give u the code but first make certain points clear. Do u want to increment the count by 1 every minute?.The code that i will give u will be in Hi-Tech C, is that ok?:D Regards.
Below is the C code for handling an external interrupt. The initial value on PORTC is 0; When an interrupt occurs it increment the PORTC by 1; I used the WinAVR to convert the c code into hex code, then loaded the hex code onto the chip (avr atmega8) for test. The values on PORTC change randomly every an interrupt occurs. Can anyone tell me
the debounce is like when you change the slider or push button connected to clk, there are up and down (if you look at the waveform) on the clk signal and it might trigger many clk edges... so the easy way is to make a wait for few milisecond for the signal to stable down before your system read another clk edge... use state machine with 2 o
Newbie here, trying to get my battery to last as long as possible. What I want is a "sleep mode" that wakes up the chip when a button is held for 2 seconds. This is the program I have now, using PICBASIC. Sleepmode: pause 1000 if pin2 = 1 then increment if holdcount > 1 then Startup goto Sleepmode increment: LET holdcount = h
hey friends ,i make making 8051 BASED FUCTION GENERATOR. if anyone has idea regarding software/programming then pl tell. i want to generate 10khz,100 khz, 1 khz, etc. i am using a increment and a decremnt push button for getting the frequencies between 10 to 100 khzand also for 1 to 10khz
You could pretty much do this with any programming language. Assign a different variable to each button and increment by one when the appropriate button is pressed. Do this within a loop, then constantly compare each variable with the preset codes, say 3 locations in eeprom or similar. When all three match, open the lock. You probably wont (...)
Here it is. Working and assembled. look at the new asm file. I documented the changes. Normally you would not use the eeprom for tables (I wouldn't).Another way would be to move the table into the code segment and use the lpm instruction like so: ldi ZH,high(table*2) ;address of the table ldi ZL,low(table*2) ;you can add an offset
I found this code but i cannot compile it...need help if anybody could tell what wrong with this code..urgent...really3 need help program varyPWM1 dim voltage_duty as byte sub procedure InitMain() ANSEL = 0 ' Configure AN pins as digital I/O ANSELH = 0 PORTA = 255 TRISA = 255 '
You could use Timer 1 to increment a global counter via an interrupt. Pre-load timer one for a period, such as 10mS by using mplab sim, the stop watch and a breakpoint in the interrupt to check the pre-load value. You could clear the timer to start it and poll it to find the timeout period. Something like this, using mcc18 compiler.
Hi, I'm new to micro controllers and have started learning programming PICs using assembly language and I was wondering if anybody can help me figure out with something: I'm trying to use pin RB0 on the 16F877a as my interrupt source to increment the contents of a register (general purpose register named SECTION_SELECT) whenever I press a button
I don't have a specific suggestion but if you'll use the search terms "increment", "decrement" and "counter" you may have some results. This could be easily implemented with a microcontroller so consider posting in that category.
For getting user values, you should have some keys(buttons). For example you can assign two buttons, one for increment and other for decrement. And another button to select the hours and minutes
something like this? process(clk) begin if rising_edge(clk) then -------------------- --increment -------------------- if switch = '1' then counter <= counter + 1; else counter <= counter - 1; end if; end if; end process;
the process is missing n6 from the sensitivity list. But you also have problems because you have created an asynchronous counter. Because it has no time base to go from, when you press the button, it will count as fast as the propogation delay, so will increment by one every couple of nanosecons. This is the main reason it appears random when you p
why not use a variable every time u push it, increment its value. now when compare its value; when even (0,2,4 etc) on the led. and when odd (1,3,5 etc) off the led. (or u can also use a single value 1 for on and 0 for off) i assumed the led if off initially. That could be one logic.
Hi all, The following code is suppose to do the following but it is giving an error, please help. At start up, a string "Please Enter S-T" should show on top line of the LCD. Press and hold push button RB6 to increment the sampling time from 1 to 10 seconds shown on line 2 of the LCD. Release the pushbutton once the required sampling (...)
increment an int in RB0 interrupt service routine. (say count++;) Then in main program introduce a code to convert the count to corresponding decimal digits and send the ascii of the digits to LCD one by one , from the MSB to LSB. Before that set the LCD cursor position. (say 0x80) Now i think you can do it...You mean you want the exact code?
hi all I have problem with this keypad.. I know how to interface in MCu but I dont get the logic how do I make the keypad increement the value of x ONLY once even if we hold or press one button for a long time in my example I use button 1 to increment the value of x but I cannot get the logic how.. see my example code.
You can use timer in mode 1 and the value in TH and TL should be loaded using some variable and this variable value will increase or decrease with action of button. and donot do increment or decrement in steps of one do it in steps of 1000-5000
Hi, At the receiver side you can use a counter for which clock is supplied using a pulse generator. When ever you press the button of the TX, the pulse generator present in the RX, should generate a pulse. This will increment the count of the counter (0000,0001,0010,0100,1000, so on..) on every press of a button from the transmitter. (...)
TMR0 counting can't reach 15 seconds. You need to add variable ex counter. For better, use TMR0 interrupt for increment counter.
Controller: PIC 18f452 Compiler: CCS CCS has a built in RTOS which is not pre-emptive. I have written simple RTOS task which detects for a button and if pressed then increment the count on the lcd. Push button works on this basis: check for button, if pressed then wait 100 ms, check again if (...)
It might be better to let the interrupt routine just increment the mode_count. It is not a good idea to spend too much time in the interrupt routine. Why do you clear the flag in your main loop? while(1) { INTCON.INTF = 0; ????? rgboff(); } Something like this. volatile unsigned char mode_count = 0; void main()
I am working with MPLAB C18 compiler. The code below is not doing what I expected to do! The variables 'OK' and 'RIGHT' represent two buttons. When a button is pushed the value changes from 1 to 0. So I exspect that until OK is not pressed I can keep pushing RIGHT and the value of x increments with every press. What happens, insted, (...)
use the same code in mikroe example. For button code you have to add debounce delay. How can you increment and decrement using single button?
Yes............ Finally I've made it possible. here is the modified code..... // Receive Sony IR Remote signals using PIC12F675 // internal oscillator 4MHz (make sure it is calibrated), watchdog disabled // connect 3-pin IR receiver module to GPIO 0 input // Sony TV remote will toggle: // GPIO 1 outp
Im university student and following processor design course I've to design ASIC for electronic ticket issuing machine I feel trouble for these, 1. how to draw block diagram for this processor 2. what are necessaory component inside the processor 3. VHDL code for Xilinx 13.2 already I have design a ISA like, Instruction Set OP-Code (hex)
hi..i just wanna try simple project which is to control the speed of dc motor using PIC16F877A.. my problem is at the coding because i'm not good in coding (MikroC) here is my coding void main() { short duty = 0; //initial value for duty TRISD = 0xFF; //PORTD as input TRISC = 0x00; //PORTC as
To control spped you have to change the delays. You have used 50 ms delay. use a variable like ms in the delay function like delay_ms(ms); and use a button to increment or decrement the value of ms on every button press. You can use ms = ms + 1; and ms = ms - 10; for increment and decrement. Use a button (...)
Hai all, Today i was experimenting with 434MHz RF module with ATmega32. I have to send two different values to the receiver. The two different values are 1. From ADC input 2. From a variable that will increment its value when a button is pressed on switch is connected on PB2. At the receiver side i can read only one v
Hello, I want to build a timer using the AT89s51 mcu. I am using keil to compile and debug my code and proteus to visualise the effect. This is a personal project to help me understand better C language and electronic. I have a lot of questions and a lot of problems but i will focus on the most pressing ones. The program should do the f
The design depends of several factors. The clear touch screen is going to lay over a display screen or possibly just a printed card. You simply display the buttons and then the area being touched that corresponds to the area being touched is used to branch in the code. If you have 4 to 6 touch buttons it is an easy problem and there are many t
Hi, Your question is why is need a for loop ? is not clear. The code is meant to do two basic task increment count from 0 - 9999 in the part of code towards the bottom "Count++" and go back to 0 when count reaches 9999 in the part of code towards the bottom if(Count > 9999) Count = 0; If you wish to have an act