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Recent content by alfie.max15

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    Using external clock for 16 bit counter in Atmega 8

    I am using Atmega 8 16 bit counter. It works fine with the internal clock. But when tryin to use a signal as external clock on T1 pin on the uC the pin stays high all the time. DDRD &= ~(1 << DDD5); // Clear the PD5 pin // PD5 is now an input PORTD |= (1 << PORTD5)...
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    [SOLVED] Need to set 20 MHz external crystal to work with Atmega328P

    Prob solved....:) Now i got my Atmega working on external crystal Thanx for all your quick help...:)
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    [SOLVED] Need to set 20 MHz external crystal to work with Atmega328P

    Yes it does... i have been working with the programmer and Atmega328P for the past 2 months... and yes i am able to program my uC with that hardware... - - - Updated - - - Thanx for this link.... but i dont understand this... if i want to use the 20MHz crystal... there is just too many...
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    [SOLVED] Need to set 20 MHz external crystal to work with Atmega328P

    **broken link removed** this is the one that i use... and yes it supports Atmega328P its just a GUI version of avrdude.... and it does have all options to read fuses and write fuses... but i dont understand what value to set... etc..
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    [SOLVED] Need to set 20 MHz external crystal to work with Atmega328P

    i cant use that cos it doest have the Atmega328P listed in its drop down list of all the uC's it can program..
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    [SOLVED] Need to set 20 MHz external crystal to work with Atmega328P

    http://www.nex-robotics.com/products/microcontroller-programmer/avr-programmer-and-accessories/nex-avr-usb-isp-stk500v2.html this is the programmer i am using and... http://avr8-burn-o-mat.aaabbb.de/avr8_burn_o_mat_avrdude_gui_en.html this is the software that i am using for burning programs...
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    [SOLVED] Need to set 20 MHz external crystal to work with Atmega328P

    Thank you guys so much for helping me understand about resetting fuse bits... But what i want to achieve here right now is... I want my atmega328P uC to work with 20MHz crystal https://www.nex-robotics.com/products/electronic-components/crystal/20mhz-half-size.html so i know i need to connect...
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    [SOLVED] Need to set 20 MHz external crystal to work with Atmega328P

    I have been working with my micro-controller for the last 2 months and i have had a bitter experience while setting fuse bits. I had to throw away one... So now i need to work with an external clock of 20Mhz i have got a 20MHz crystal and while reading the datasheet i have learned i need to...
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    An Op-Amp to amplify 1mV 40KHz signal upto almost 3.3V-5V

    In my project i have an ultrasonic receiver which gives an output of 1mV-10mV 40KHz signal i need to trigger a pin of the microprocessor high when i receive this signal so... I need an amplifier stage in between... i tried an op-amp LM324 even though i get required uotmut in simulation, in...
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    I need to know what is the minimum voltage that a micro-controller can detect

    one doubt... from the datasheet i got this information For a supply 2.4v - 5.5v the VIL threshold is < 0.3 * Vcc , VIH > 0.6 *Vcc . As av example for 5 supply the low threshold is 0.3 * 5v = 1.5v and the High threshold is 0.6 * 5v =3v what does that mean???
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    I need to know what is the minimum voltage that a micro-controller can detect

    In the project that i am working on i need to detect a signal coming from the mic which is a very weak and in the range of 1mV. So i need to know can my micro-controller detect that as a high on any port pin... Or what is the minimum voltage that is required so that the uC can detect and...
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    [Moved] GUI in QT Creator to interface with Atmega328P

    hello... I am working on a project with Atmega328P microcontroller and now i am in a place where i have to sent and receive data from pc to uC... i am learning Qt Creator and am working in the C++ coding of the GUI.... i am clear with the uC programming part of serial communication... I will...
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    error writing fuses, error reading fuses.... Atmega328P

    okey....:) anyways a great learning experience i guess....; Thanx Guys....)
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    error writing fuses, error reading fuses.... Atmega328P

    i am using Atmega328P and i was trying to enable the PC6 pin which is set as reset by default... And i am Using AVRDUDE GUI Burn-O-Mat v2 for this.. when i did it the first time it showed writing fuses successful but after that i tried to read fuses but it shows error... tried to reset it...
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    [SOLVED] error burning .HEX file into atmega328P

    thanx for all your time and for helping me in every way that you all could...:) i did figure out what the problem was... i just checked the board if there is power being supplied by the programmer... surprisingly there was only getting hardly a 1V reading in the multimeter... and i was pretty...
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