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28 Threads found on edaboard.com: Fuse Reset
Hi, there are 10A resettable PTC fuses with 30V rating. Maybe good for a test or a hobby project, but not good for reliable high volume production. **** Why no motor current measurement and control the driver? Klaus
Hello, I am using USBasp to program my board with ATmega128, hardware is single side PCB by Thomas Fischl board was working well and I decided to change some parts of the code but when I tried to read chip signature I got error (attachment) as well as when I tried to read
If I programming atmega16 fuses, can i reprogramming it with different value?
i am using ds pic33ep512mu814 144 pin ic, if i keep on pressing the reset button at one time say 20th are 22th time the controller gets hanged again if i press the reset button it works. i am just toglling an led. the fuse setting are as follows i am using ccs complier #fuseS NOWDT //No Watch Dog (...)
I have built an AC/AC cuk converter for an assignment I am doing. It works as such, I provide 50V AC in and I get an adjustable voltage out from 0V to 50V AC, depending on the duty cycle of the PWM that I gate to the MOSFETs. It is designed to supply a max of 1.5A rms to the load. I have included a schematic below, drive circuit as not been shown.
;********************************* ; atmel fusebit doctor ;************************************ ;this is program to reset atmel fusebits to enable serial programming ;use 4 mhz crystal in pic16f72 ;load the atmega fusebit doctor hex file in pic16f72 ;apply +5v to vcc & avcc and +12v to reset of atmega (...)
A circuit would help help you. Till then, make sure you have disabled the brown-out fuse and enabled the power-on timer. Also, disable the MCLR pin, unless you specifically need it for reset.
Also check you have programmed the configuration fuses. I'm not sure about Proteus but most simulators ignore fuse settigs when they run but a real processor must have them configured. Brian.
Any way for me it is not so easy..;)... Also my package is very small (32-QFN). I know it is not due to AVR architecture problem. I just commented it is a bad design by the Atmel. Otherwise they can easily implement a fuse bit reset to default option by some simple way in the hardware itself so that no need to take the
1. It's a fuse just like the one in a power cord but much smaller and embeddd into an IC. They are links which can be 'burned out' just like a conventional fuse which means they can't be reset afterwards. They are not used to protect circuitry though, they are used to configure it in a way that can't be reversed. For example, they could (...)
I think the OP was already using that guys ive used engbedded fuse bit calculator i just needed to be confirmed that my settings are right I have used AVRstudio AVRISP interface to check the settings from the high/low data.
So are you seriously asking, I thought you were making a joke with the burning chip video. Do you know what is the fuse setting that you have applied? The fuse bit doctor should fix any clocking or reset/isp setting problem. You can also try , it uses a mega8 to unlock another m8 using para
The reset pin is neither input or output, it is a reset pin. It can only be used as an I/O pin if you change the RSTDISBL fuse bit but is you change the pin operation then you can no longer use ISP programing, you will have to use a parallel programmer. 4. When programming the RSTDISBL fuse Parallel Programming has to (...)
I change the fuse settings manually to 99 E1, which is the factory default (atmega16 datasheet), as the programmer software does not have any reset to default option. You're correct that is the default setting for an ATMEGA32. Obviously, these correct fuse settings are not actually being programmed into the device. So
does MCLR is disabled by accident? check your fuse setting and/or code. make sure the reset pin is enabled (not configured as portE.3) also try disabling watchdog timer
if you disable the reset pin and use it as an I/O then you can no longer use ISP, you can only use a parallel programmer, In fact I'm not sure if you can change the reset fuse while connected with a serial programmer, I think you need a parallel one to change it. You can find a parallel programmer schematic in the end of this page [url=elm
Check out this thread. In the last page you can find avr fuse bit doctor by which you can bring back most of the AVR's.
Hi, I am using ATMEGA48. I have following peoblems: 1- Whatever I do, I must have external reset circuit. I set the BODLEVEL fuses to be 4.3 volts hoping that BOD will reset my microcontroller when VCC starts going up but it doesn't work that way. I even programmed the RSTDISBL fuse but that doesn't help either. 2- I don't kn
Hi, I am using ATMEGA48. I have following peoblems: 1- Whatever I do, I must have external reset circuit. I set the BODLEVEL fuses to be 4.3 volts hoping that BOD will reset my microcontroller when VCC starts going up but it doesn't work that way. I even programmed the RSTDISBL fuse but that doesn't help either. 2- I (...)
hi have u pulled up reset pin of the controller through a suitable resistor.. and add decoupling capacitore accros vdd and vss. set the config fuse to disable LVP (Low Voltage Programming)