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140 Threads found on edaboard.com: Avr Gcc
uh oh, I think the avr-gcc still makes its operations on 8 bits if both operands are 8 bits, so return ((resh << 8) | resl); effectively returns resl only.. try making a cast return (((unsigned int)resh << 8) | (unsigned int)resl); I think the (int) cast on resl isn't necessary, but lets try... also check with another
There i no way, you can use Atmel Studio 6 on Linux. There are alternative IDE's (ie Eclipse, or Code::Blocks) that work on Linux. And avr-gcc is working fine on linux (you can even download Atmels version for linux) Debugging is going to be a challenge though. /Bingo
I want to convert 24Hr-to-12 mode in RTC DS1307 with atmega16(11.0592Mhz). Its ok with 24Hr mode. For its solution i had referred its datasheet....and read about 24/12 hour bit but in my code i cant find that where i have to make that change so that i can convert that time in 12HR. Compiler avr gcc. #include <avr/io.h> #incl
dude, that's a I2C memory, not a microcontroller... what exactly do you need? an avr sample in atmel studio (avr-gcc? or avrASM?) to write an I2c memory (your at24c512) trough the TWI interface? (something like this could
I remember pablin did pong & tetris in a TV with a pic16f... I myself made some games with a GLCD with a PIC16F88 in Assembler and later ported them to avr-gcc for a Atmega32... please note my implementation could be very diff
I have used the library from ihsan Kehribar (which is made in avr-gcc) and it worked at the first try...
I am trying to implement a GPS module with avr Atmega32. I am finding difficulty in splitting the text read from GPS module, namely the $GPGGA line. I need to split segments of this line that are separated by commas and use the latitude, longitude and altitude for further processing. Any help in few line code to split this line will be very us
The code below is to show a problem I encountered while working on a bigger program. I'm using ATmega16 with 16MHz external crystal. I measure the frequency at which PIN7 of portD is toggling (i.e time taken per loop). When I don't include the statement "PORTC = 0x00;" inside if (count>1000), the frequency of PIND7 is 27kHz. But when I include
// This code waits for a character and transmits the character back (with interrupts) #define F_CPU 16000000UL #include <avr/io.h> #include // needed for uint8_t #include #include <avr/interrupt.h> #define FOSC 16000000 // Clock Speed #define BAUD 9600 #de
i have a big problem when using array the array works until my array is 4 but after i add 5th number, avr started joking.... the program very easy & problem seems very old #include <avr/io.h> #include <avr/delay.h> #include <avr/pgmspace.h> int main(void) { uint8_t i = 0; const uint8_t j = { (...)
I am trying to do what arduino SHIFTOUT function does, but not sure how to code the following line in avr gcc : "digitalWrite(dataPin, !!(val & (1 << (7 - i))));" void shiftOut(uint8_t dataPin, uint8_t clockPin, uint8_t bitOrder, uint8_t val) { uint8_t i; for (i = 0; i < 8; i++) { if (bitOrder == LS
I would recommend using Code::Blocks rather than Eclipse for an IDE, Code::Blocks is also compatible with gcc distros like Mingw, avr-gcc, etc. Code::Blocks Code::Blocks Installation w/Mingw BigDog
Check this application note from atmel If you are using avr gcc, softuart library is available on the net
Hi, I have used avr microcontrollers before (using avr-gcc library) and the arduino platform. But for a project I have to use a PIC microcontroller for the first time. I have a few doubts: 1) I am planning to use pic32mx250f128b which has a built in USB. I wanted to know how easy will it to implement this USB functionality (...)
there is any starter guide with some example for gcc-avr or avr-eclipse & how can i found the lcd(16*2)(or other graphical) & other lib for both compiler
I am having problems buliding my project on avr studio4 . On selecting build option the process for building is initiated but later shows an error stating a problem related to the object file : rm -rf C-Flash.o C-Flash.elf dep/* C-Flash.hex C-Flash.eep Build succeeded with 0 Warnings... mmcu=atmega32u4 -Wall -gdwarf-2 -Os -std=gnu99 -funsigne
Suggestion: If you use avr Studio or avr-gcc, it is much more simpler, and safer, to use for usart baud rate setting as it can handle the USE_2X bit automatically. Errors: F_CPU MUST be defined before including , if you don't get any warnings at compile time, then it is defined somewhere else, thus (...)
Atomically means that no interrrupts can be executed while the code/process runs. In avr-gcc you have which will give you some good macro's for atomic code. You might try timer capture/compare, it is built in the timer hardware, check the datasheet. - - - Updated - - - When
The xy coordinated access one char at a time, there is no string type in C. There is a string manipulation library in libc that may come handy The eeprom access is done using You can read this tutorial d
I assume you refer to Libc
I am using avr gcc compiler which comes with avr studio. I dont have any library for reading JPEG file. I am using ATmega32 Microcontroller.
I just purchased a development board Ready for XMega from mikroelektronika and have to use this in my project. I am not having that much knowledge of avr Micro-Controller's. But very good knowledge of PIC and 8051 Micro's. Please suggest me some tutorials for avr XMEGA128A1 micro-controller.. I have to use gcc Compiler as i am not (...)
hi friends, i'm trying to compile multiple c files in avr studio4 but when i try to compile it shows following error Build started 1.1.2001 at 00:52:34 avr-gcc -I"E:\vishal\vishal _avr\serial library" -mmcu=atmega16 -Wall -gdwarf-2 -std=gnu99 -DF_CPU=16000000UL -Os -funsigned-char (...)
With Winavr it stays in ROM because you are directing gcc to put it in ROM - not sure how avrStudio handles it. The PROGMEM attribute is always a source of confusion for those beginning with avr-gcc. The PROGMEM attribute is a powerful one and holds the potential to save a lot of RAM, which is something (...)
I am familiar with mikroC PRO for avr. I have done some project by use it. Now I am shifting to ATMEL Studio6. In mikroC I used some libraries like LCD, TWI, ADC, EEPROM etc. all these library code is hidden. Is there any way to see it? or where can I get these kind of open source libraries for ATMEL Studio? Regards Hasan
I want to try some assembly language program in arm cortex m3 (STM32 VL DISCOVERY). I have the arm-gcc tolchain but the assembler in the arm gcc toolchain seems to be little bit difficult for writing pure asm code.. So, is there any simple assembler for arm cm3? (for example, gavrasm for avr, naken430asm for msp430... (...)
I have loaded the hex file of my .c code compiled in avr gcc into my atmega8.......But when the micro is inserted into the circuit board and circuit board switch is pressed random functions start happening without me pressing any key on my remote control.......only when i press the switch on and off many times the robot starts to work normally(as
how to interface t6963 based LCD in C18 Compiler, first i tried to port another codes (CSS and gcc-avr) and it did not work, now im wondering if there are anybody faced this problem before and how did he solve it(library, code, xlcd.h , port....etc) Thank you max
Hi guys, I want to use a free avr compiler. please recommend me gcc or atmel studio 6 . i want the easiest, that have more examples and documentation. i want that more close to codevision compiler. thanks in advance.
Your function delay_ms() resembles me one in gcc compiler for avr. Is it really OS's function?
@digi001 If you are looking for a Free and Open Source alternative: You could install the Code::Blocks IDE which supports a myriad of Open Source gcc variants including, TI MSP430, ARM, avr, SDCC, etc. Of course, Code::Blocks also supports both the Windows, Mac and Linux platforms and compatible gcc compilers as well. [URL="www.
Can anyone please explain why the result of the operation given below is always wrong unsigned long var = 0; var = 10*9600; The result comes as 30464. I have even tried by changing the data type of "var" to double. Waiting for a solution...
i think the most easy now is avr. and if you know C gcc compiler. the net is full of avr aplications..
If it is a digital sensor then you can change manually the input state from the4 right side panel (the white/black boxes for ports) while using the software debugger of avr studio but to debug a circuit properly you should use a hardware dev board.
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1) Plenty available. I would recommend you start with PIC/avr. Then, you choose the book necessary. Mazidi's books on PIC and avr are among the best I've found. You can use that. It pretty much covers everything from the basics. 2) You need the IDE and compiler. You can use avr-gcc and avr Studio. These are (...)
this while(*p) data(*p++); works fine for me Do you mean with avr-gcc? I guess the problem is related to the necessity to generate LPM instructions for const data located in Flash memory. The *p++ syntax is generally O.K., but it's not working for Flash memory without special compiler prerequisites. But I'm not familiar with avr-
I write a program to set the time of DS1337. Then read the time. But when read even after several minutes , the time is not changed. I'm using avr studio 5 and gcc compiler. What are the possible errors of not changing the time. Further I set OSF and EOSC bits in DS1337. But nothing happend.
What output do you require? Read tutorials about avr studio
Code:Blocks isn't said to presently support avr C. Most likely porting it to avr C would involve some work.
hi guys !!! i have written a code in which for atmega162...... every time its receive a byte my controller hangs..... can any body tell me what i am missing ??? #include <avr/io.h> #include #include #include <avr/pgmspace.h> #include <avr/interrupt.h> /* CPU frequency */ #define F_CPU 16000000UL (...)
avr-gcc is not showing any error even if I am using array of size > RAM.. see this example: #include "avr/io.h" #define F_CPU 12e6 #include "util/delay.h" main() { char a; int i = 0; for (i = 0; i < 12345; i++) a = i; DDRD = 255; i = 0; while(1) { PORTD = a; if(i == 12344) i = 0; _delay_ms(1
avr-gcc I am using avr and avr-gcc for first time. Is it possible to include the fuse bits in the C code ? If so, how ?
i want to know more about each level of optimization in avr gcc , it does reduce the size greatly , but it seems it usually causes bugs , it seems it need special way in writing the code or something , can any one gives me a link or a reference giving more details about dealing with optimization levels?
Keil dont support atmega32 You can use avr Studio which is a free IDE from atmel or commercial ones like codevision, mikroe, iar.
I think you are using avr, why are you trying to make custom functions to write/read the eeprom? You haven't defined your compiler either but for avr-gcc check my post Write/read the internal EEPROM in avr using avrgcc (winavr) - Blogs - Forum for Electronics It is as (...)
I like this tutorial avr gcc Tutorial (1) ? Basic I/O Operations ? Suhas?s Blog it has some nice graphics with a good explanation of port registers
Another one but with cheaper nokia 3310 display LCD Nokia 3310 (PCD8544) Driver in Winavr(avr-gcc) ? root@fandigunawan
The avr-gcc C library, avr-libc, provides the printf() family of functions. You can use them after some preparation. General details are in the avr-libc documentation for file stdio.h. "These notes are specific to the Arduino development environment."
I suppose that you know how the three port registers work, you can take a look at avr gcc Tutorial (1) ? Basic I/O Operations ? Suhas?s Blog Also check my post here In your code you enable the pullups so all the inputs will h