All Questions
55 questions
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ATmega16A SMD Package Stop Working after afew hours
نتایج ترجمه
Hello
I wrote a program for ATmega16A microcontroller, 6 of the pins are defined as input and 6 of the pins are defined as output.
UART communication and a timer are also defined in the ...
0
votes
1
answer
967
views
AVR-GCC Overwrites Interrupt Vector Table with Main
I have a simple C program written for an ATmega168:
#include "avr/io.h"
#include "avr/interrupt.h"
volatile uint8_t intrs;
int main(void){
TCCR1B |= _BV(CS12) | _BV(CS10); \\ ...
- 313
1
vote
0
answers
119
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Why doesn't my LED turn on when a certain distance is measured? Atmega328p and ultrasonic HC-SR04 sensor
I am using an Atmega16 to control a LED with an ultrasonic sensor. Basically the LED turns on if the distance is smaller than 100cm and otherwise it turns off.
#include <avr/io.h>
#include <...
- 11
-1
votes
1
answer
864
views
what is the best way to synchronize the serial communication between two microcontrollers using UART?
Suppose we have two microcontrollers , UART module was initialized to work as a Transmitter and Receiver ( full doublex communication ) for both of them.
Before the super loope one of them send a ...
- 35
0
votes
1
answer
106
views
Is that the right way to check if an existing password is stored?
I'm creating an application with 2 ATMega16 micro controller.
The second micro should check if a password is stored in the external EEPROM then send this information to the first one. So, if there ...
- 35
0
votes
1
answer
893
views
Avr Problem: in spi, spdr register is 8 bit but my number is 16 bit [closed]
I work with atmega16, in both side master and slave.
I want to send a number between 100-999 that entered by keypad to the slave.
Numbers are 16 bit, but spdr register is 8 bit, so I send first lsb ...
- 39
0
votes
2
answers
258
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My guitar tuner code in CodeVisionAVR using an ATmega164 can't handle more than 4 samples
I'm designing a guitar tuner through CodeVisionAVR and using an ATmega164 microchip for my university project. If i set the number of samples any higher than 4, the chip LEDs will just flash ...
0
votes
1
answer
161
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I'm designing a guitar tuner through ATmega16p and CodeVisionAVR and i just can't get my code to run
I'm designing a guitar tuner through an atmel mega16 processor and CodeVisionAVR for my university's second project. I have connected a mono jack to the processor's PINA.7 (ADC converter) and GND. I ...
0
votes
2
answers
286
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How to declare a matrix that is stored in PROGMEM
I am trying to write a header file that will drive a LED Matrix but I'm stuck with a syntax error which I cannot resolve
I've already added " ; " everywhere I thought it was necessary and checked ...
- 3
1
vote
0
answers
296
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WDR seems to disable watchdog timer
I'm testing some assembly code with atmega16 in Proteus 8 with AVRASM compiler and it seems that the WDR instruction isn't work correctly.
From the datasheet, WDR must just reset the watchdog counter....
- 11
0
votes
0
answers
129
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USART connection between ATMega16 and SM5100B-D gsm/gprs module
I have been struggling with usart interface between these two devices. After the code has been ran, i can see TX and RX flashing, but no message actually passes through, which is my ultimate goal. Any ...
- 1
-3
votes
3
answers
125
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how can merge one array values in one integer c++
How can i merge one array values in one integer and upside down?
example: a[]=0b1011,0b1111 to 10111111 and 10010101 to b[]=0b1001,0b0101
0
votes
2
answers
3k
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Interfacing 16*2 keypad and LCD with atmega32
I have a disappointing problem with a keypad module that when pressing on any of its keys, it normally shows up the key pressed on an LCD module. The problem is whenever I press the key, the rows stop ...
-2
votes
1
answer
156
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Atmega16's PORTs don't work
I was trying to interface a seven-segment-display with Atmega16 chip with its decoder (74ls47), and increase the value it displays using ISR. The ISR should turn a led on and off then increase the ...
- 620
0
votes
1
answer
898
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How to connect multiple devices on avr(atmega16/32) using UART?
atmega 32 has only one (TX/RX) .In case of connecting many devices working with UART what should I do?....Arduino has something called software serial
Is it available in atmega 32 or how to ...
