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i use mikroc compilier
when i use timer interrupt . when is there timer over flow the timer interrupt function is work.
but when avr cpu is return from interrupt function it's not return to the last programm adress(when intterupt is done)
but it start from beganing from the main code and...
pcb DRY fILM problem
i buy from china negative dry film.
i use soduim carbonate to developing dry film . after developing i see the copper
when i put pcb in ferric chloride to etching it. the pcb is not etching because there are an Transparent layer of dry dry film " i use a correct layer...
i use xt 4mhz crystal and i try long time and no solution.
the problem is. i make simple loop. on and off an led with 500ms delay . it work in simulation .
but in my circuit it's take about 10sec to flashing led. :?:
avr usb avr programmer
i build avr usb programmer .
but i have problem i have 6 usb port in my pc . my programmer work only with 2 port. and when i connect it with other 4 port give me this "device not recognized"
i have a cheap smps running by one transistor. and i want to increase voltage .
this transistor controlled by zener diod. but when i replace the original diod with another one. the led power in circuit make flashing.
i think it flashing because i changed the zener value. when i replace...
hello every body.
i want to learning cortex-m family
but i'm confused about select manfucture . i want to buy mcu and programmer and some tool . so i want what is the manfucture have alot of information and examble and book about it's mcu i want to find support if i have problem
nxp or st or...
if i have the following
100 mhz , 1 watt transmitter
143 mhz , 1 watt transmitter
413 mhz , 1 watt transmitter
900 mhz , 1 watt transmitter
2.4 ghz , 1 watt transmitter
which will be cover big area ?
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
this high voltage can reset my fuse bit ? .
i have problem with programming atmega16 because it give me error to found chip.
but when i proramming atmega8 it programming well.
to programming atmega16 i must select slow clock mode to be able to programming atmga16 . but it make programming very sloooooow :x .