1000 Threads found on edaboard.com: atmega8 Fuse
atmega8 fuse Calculator
AVR fuse Calculator for atmega8
here you are
Microcontrollers :: 09-19-2010 03:46 :: zoro1 :: Replies: 4 :: Views: 3516
Hi, need me help.
I make programmer for AVR microcontrollers, with atmega8.But I'm not sure whether I correctly set fuse bits. I am read datasheet but I don't understand fully datasheet. I am set low fuse bits 0xD9 and high fuse bits 0xE1. I using 12MHz quartz oscillator. Lock bits i don't touch and it is set as default at (...)
Microcontrollers :: 11-03-2011 21:32 :: rade908 :: Replies: 6 :: Views: 3440
Hi , I have an atmega8 with its clock fuses unknown !!
I want to program it but I dont know what type of oscillator to use
is there anyway to restore the fuses to original state (1 Mhz internal oscillator)???
I have a USBasp programmer only .
Microcontrollers :: 06-21-2012 14:55 :: anonymous. :: Replies: 2 :: Views: 718
i write a wrong fuse bit for my atmega8 .
and i can't programming it via my usb asp programmer .
and in data sheet i find an parralel high voltage prorammer.
and i find this video high voltage can reset my fuse bit ? .
Microcontrollers :: 07-01-2012 10:00 :: 5282604 :: Replies: 5 :: Views: 3994
i am not finding any read lock bit in atmega8,
is ther any read lock bit or fuse in atmega8??
how to read protect a atmega8??
Microcontrollers :: 11-09-2006 03:18 :: arnab.bhaumik :: Replies: 2 :: Views: 1512
Possibly you set up an external clock source.
Programming AVR fuse bits ? oscillator settings
Life-giving to atmega8
Microcontrollers :: 01-17-2007 08:45 :: Mindaugasu :: Replies: 4 :: Views: 1201
I want to disable the hardware reset pin of atmega8 and use it as an IO pin. Can any one please give me a C / WinAVR code example of how to do it? Thank you.
Microcontrollers :: 09-05-2007 03:00 :: RollingEEE :: Replies: 14 :: Views: 2818
i want to see the atmega8 adc result on my pc i am using bascom avr
terminal emulator displaying the following code whatever i print
can any one help me
Microcontrollers :: 10-01-2007 05:05 :: zohaib :: Replies: 7 :: Views: 2064
I program atmega8.Now i want to protect the chip so that no one can read its hex code.What should i do?
Microcontrollers :: 12-31-2008 03:59 :: mansoorkhawar :: Replies: 1 :: Views: 1271
How to recover wrong fuses settings on a AVR say atmega8 ? may be isp disabled (cannot detect chip error-24).don't suggest HV programmer method pls suggest any easier way to recover .
i am using pony prog2000.thanks.
Microcontrollers :: 10-01-2010 06:14 :: santoshaxl :: Replies: 8 :: Views: 6497
The external crystal oscillator can be enabled with setting fuse bit in atmega8
BE CAREFUL WHILE CHANGING fuseBITS
Best of luck
Microcontrollers :: 01-21-2011 06:59 :: nandhu015 :: Replies: 3 :: Views: 2009
I would like to know if someone had made this arrangement Satfinder Elektor March 2011 to find out what fuse box for the atmega8, I'm a little lost (even many) I visited the site [http : / / but I can not understand how to take control in the dropdown menu, I know the installation uses an
Microcontrollers :: 04-23-2011 09:02 :: jeanmichel63 :: Replies: 0 :: Views: 664
I used an atmega8 whose fuse bits was not set to use an external oscillator(fuse bits were at factory settings), in a circuit with a 12Mhz oscillator and powered on the circuit.
needless to say the program did not work. Now when I try to program this atmega8, Avrdude says "AVR device not responding"
Is there any way (...)
Microcontrollers :: 06-21-2011 15:01 :: hotshot05 :: Replies: 4 :: Views: 774
i have a atmega8 i can program it but it theres no output at pc0
Microcontrollers :: 12-02-2011 01:37 :: prabh :: Replies: 4 :: Views: 665
It is an USB RS232 I/O port module ? an USB-RS232 adapter based on the following project:LINK . The device uses processor atmega8 with quartz
Show DIY :: 06-19-2012 05:25 :: Vermes :: Replies: 0 :: Views: 1249
I'm divorcing atmega8 from my work bench. Its a bad one. PIC is much better.
The chances of this being m8 fault are close to none unless you have a faulty device.
You can blame your code or your compiler, your choice ...
Microcontrollers :: 09-19-2012 15:16 :: alexan_e :: Replies: 23 :: Views: 1056
Jtag enabled etc
There is no JTAG in atmega8.
Looking at the attachment fuse for internal 8MHz is correct.
Do you need bootloader which is selected for 1024 bytes in your attachment.
Microcontrollers :: 09-24-2012 02:14 :: nandhu015 :: Replies: 10 :: Views: 1215
When you start the programmer, there are three tabs, use the third tab for fuse bit settings.
If you wish to write those bits, use the check box and then write it. see the attached image.
the value of fuse bits and lock bits can be calculated using the
Microcontrollers :: 04-12-2013 19:18 :: ark5230 :: Replies: 1 :: Views: 563
Can anyone tell me how to use an internal RC oscillator as a clock source in atmega8?
I have searched a lot about that and found, there should be configuration bits programmed using ponyprog2000. But when i program configuration bits my program cant be run and when i connect external oscillator between XTAL1 and XTAL2 the program execution speed
Microcontrollers :: 02-15-2013 23:51 :: Briez :: Replies: 1 :: Views: 1596
In an attempt to get reliable firmware for 89S51/52 USBASP programmer I tried to copy hex file from a ready made programmer as I could not find what firmware to use from the that process I copied the lock bits also.
Later I realised tha
Microcontrollers :: 04-12-2013 19:19 :: ark5230 :: Replies: 5 :: Views: 307
Hi everyone, i try to blink a led to learn avr series as hoby so i wrote this code below:
#define OUTPUT 1
#define INPUT 0
DDRC = 0xFF; // PC0..PC3 as output
PORTC = 0x00; // all PORTC output pins Off
Microcontrollers :: 01-09-2014 17:23 :: ashes35 :: Replies: 3 :: Views: 260
If you have disabled reset then you need a parallel programmer.
The simplest solution is to use another atmega8 to reset the fuses, refer to
The more complicated solution (that can work with any AVR) is Atme
Microcontrollers :: 01-25-2014 06:36 :: alexan_e :: Replies: 9 :: Views: 295
does anybody knows or has some materials about realizing a circuits which works like a fuse.
This Circuit must be very fast and must switch off currents about 30Aac.
Thank you for your help
Professional Hardware and Electronics Design :: 02-08-2002 06:44 :: Vauxdvihl :: Replies: 2 :: Views: 991
How can calculate fuse on PCB TRACE ?
PCB Routing Schematic Layout software and Simulation :: 02-20-2003 06:37 :: AG :: Replies: 6 :: Views: 8040
does anybody have any material on the internal architecture of CPLD - at the fuse level ....I need info on what happens internally in the CPLD after we have downloaded the JEDEC file into the device
can anybody help me??
thanks in advance...
PLD, SPLD, GAL, CPLD, FPGA Design :: 03-16-2003 22:38 :: anand_navale :: Replies: 0 :: Views: 1931
I need programmer for atmega8(Sch, soft). For now my choice is ponyprog. Any other sugestions?
Microcontrollers :: 06-29-2003 17:00 :: Moss :: Replies: 4 :: Views: 5664
Select-A-fuse is the industry's first mouse-driven, Windows-based fuse selection software. Quickly, accurately choose the right overcurrent protection for low- and medium-voltage motors, power and control transformers, and general loads. Includes melting time and peak let-thru curves, specs, dimensions, a comprehensive product cross-reference, and
Robotics and Automatics Forum :: 10-31-2003 14:13 :: Robin Hood :: Replies: 0 :: Views: 1530
I first time try to work on AVRs(Atmega64).
When try to program it with Bascom11173 and STK200. It looks it work only first time, when I do some changes in fuse bits it then never again be connected/detected.
Now the device is no more detected by Bascom, also tried PonyProg2000 but could not succeeded.
My question is that is there any po
Microcontrollers :: 11-21-2003 16:40 :: sadat007 :: Replies: 9 :: Views: 3749
I programmed the RSEDISBL fuse of atmega8 to get one more I/O pin, then the ISP function not worked any more. Is there any way to restore the fuse to default value?
My programmer (superproLx) does not support atmega8.
Microcontrollers :: 12-05-2003 03:31 :: Epegic :: Replies: 1 :: Views: 1313
I want to build a simulator for atmega8,where can I find reference imformation?
Professional Hardware and Electronics Design :: 06-02-2004 01:09 :: alphi :: Replies: 3 :: Views: 1838
I need a accuracy resistor in my design, so i want to use fuse trimming. But how to design this trimming format! Should use metal fuse or poly fuse?
where to find some docs about fuse trimming!
Analog IC Design and Layout :: 08-27-2004 04:55 :: elone :: Replies: 10 :: Views: 3456
I have an atmega8L that its RSTDISBL fuse bit is cleared and now its
RESET pin is configured as an IO pin, I want to reprogram this device
with an ISP programmer, is it possible? If yes HOW?
Microcontrollers :: 09-17-2004 06:59 :: madjid :: Replies: 3 :: Views: 2606
I intend to use this electronic I'm dount that the Q3 is wrong connected. If it is connected as above, U(R2) = U(BE). When U(BE) = 0.6, it would conduct but the current will flow from C to E (or from 0V to +V --> I can not understand this circuit if Q3 is connecte
Electronic Elementary Questions :: 11-19-2004 11:50 :: semiconductor :: Replies: 2 :: Views: 1876
There are three fuse bytes in some ATMEGA devices. I am working with ATMEGA162, and ICCAVR only shows two of them. Beside, I suspect that only the lower byte is displayed correctly, since I get a non-default values for the middle byte with a unused device.
Somebody with experience with this??
Microcontrollers :: 12-06-2004 17:52 :: rajo :: Replies: 0 :: Views: 1014
It maybe good chance to "change horses" (read: select a CPU family) as I think there are out there ready-to-go projects based on PICs or 51-family..
These project may come with source code and this will save you a lot of time (unless you are "fluent" in, say, C language, and C has this good thing that it can be used with almost every CPU family)..
Microcontrollers :: 12-16-2004 04:37 :: IanP :: Replies: 2 :: Views: 1964
Can anybody help me find a good aproximation type so I calculate a track as a fuse?
PCB Routing Schematic Layout software and Simulation :: 12-16-2004 18:23 :: xxtigerxx :: Replies: 4 :: Views: 1209
This is my first project with writing in Assembly language, I have tried to produce some Assembly code for Interfacing SHT15 sensor with the atmega8 ?C.
I would be very grateful if someone could check my code, and correct errors you may find. Please note this is my first attempt at Assembly programming, so I am sure there must be som
Microcontrollers :: 02-05-2005 09:20 :: gricesj :: Replies: 3 :: Views: 3306
i have a question about the figure i have attatched
consider that the power is turned on simultaneously on both the circuits of Fig 1 and Fig 2. which fuse will blow first??
i think that both the fuses will blow at the same time. am i right?
Electronic Elementary Questions :: 02-13-2005 00:47 :: E=MC2 :: Replies: 13 :: Views: 1289
Please forgive me if this is not the right forum for the following:
My goal is to write a program which will read a .JED file and program a CPLD via JTAG (using a pretty-fast/flexible digital IO board.) I understand the JTAG side, and I've written a JED-file parser, but am stuck mapping the fuse-list to
PLD, SPLD, GAL, CPLD, FPGA Design :: 02-25-2005 18:26 :: wheezer :: Replies: 1 :: Views: 850
I'm needing the schematic for the BootLoader and JTAG (Not for debug, only for load the program and blow the MSP430's fuse). Does some one have them?
Thanks in advance.
Emanuel Cassimiro da Silva
Microcontrollers :: 03-31-2005 07:31 :: emanuelcsm :: Replies: 3 :: Views: 1580
"Can somebody answere on fuse programming techniques used for wafer sorting when the fuses are arranged in Binary order to vary the resistance value"
Analog Circuit Design :: 04-11-2005 01:24 :: krishnaiah.b :: Replies: 0 :: Views: 443
Can somebody answere on fuse programming techniques used for wafer sorting when the fuses are arranged in Binary weighted order to vary/trim to get the correct resistance value in the band gap design( trimming to correct process variations).
Analog Circuit Design :: 04-12-2005 01:22 :: krishnaiah.b :: Replies: 0 :: Views: 544
Can everyone say me that how fuse bit implemented in EEPROMs or EPROMs and
how does it work?
Analog IC Design and Layout :: 05-18-2005 11:14 :: agha :: Replies: 0 :: Views: 486
i have a power amplifier with 3 MJ15015 on positive and 3 MJ15015 on negative power supply.
The amplifier is B class and the power supply is +/- 36 V.
This amplifier have not electronic speaker protection but a simple fuse.
The question is: how to calculate the fuse value?
Second question: what's the output power of this amplifier?
Analog Circuit Design :: 06-06-2005 17:13 :: leemarrow :: Replies: 4 :: Views: 2497
i have variety of fuses but i donot know classifications and identification of fuses.
can you help?
Electronic Elementary Questions :: 06-10-2005 10:02 :: gupta :: Replies: 2 :: Views: 3347
Can I program atmega8, 16 and 32 with STK200 cable?
Microcontrollers :: 06-17-2005 15:10 :: Jack// ani :: Replies: 6 :: Views: 2657
who known the metal fuse?
how it work in memory repair?
Electronic Elementary Questions :: 06-27-2005 09:38 :: nickmu :: Replies: 2 :: Views: 904
Got graphic LCD module pg-2406b1 with LC7981 and would like to attach it to atmega8.
May be somebody knows any links to start with GLCD of that kind?
Hobby Circuits and Small Projects Problems :: 07-09-2005 17:17 :: walt :: Replies: 3 :: Views: 8065
i have a project about e-fuse repair sram,but i don't know how it work and how to design and layout the e-fuse?who i help me?
Electronic Elementary Questions :: 07-28-2005 09:04 :: nickmu :: Replies: 0 :: Views: 665
That is right. u can enable the serial mode by programming the microcontroller in parallel mode. I made the same mistake with atmega8. I worte a program for Pic16F877 and reenabled the serial mode of programming by only reprogramming the fuses of atmega8. Just read the pdf of the controller, write a program for 8051 or any (...)
Microcontrollers :: 08-16-2005 00:17 :: waseem :: Replies: 2 :: Views: 1236