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Hi...

I have an atmega 32... I want to use all of the 3 interrupts... I got problems with INT2...

I set it up as a falling edge and via a 10K resistor put the button to ground...

while(bit_is_set(PINB, PB2));

_delay_ms(5000);

//init interupt

GICR |= (1<<INT0) | (1<<INT1) | (<<INT2);

sei();

the problem is that after the while... when the interrupts are initialized... the pull-up drops out...

Hello

I have this battery:

it has 6V, 1.3Ah... I don't have a charger... on the side says:

cycle use charge 7.25 - 7.45V

Trickle charge: 6.8 - 6.9V

and something about 0.4A

Hello guys...

I have some troubles... I take a look at AVR Calc and at 8mhz I can make a CTC of around 37.98khz signal wich lets say would be ok for 38... the problem is that there is not enough explanation of how to make it...

for 8mhz, 1 prescaller, ,on 8 bit timer:

OCR = 0xD2

TCNT Base = 0x2D

CTC = 37.9147khz

Error = -0.224%

overflow: 32.000 uSec

PWM normal/fast = 31250.000 hz

pwm phase correct 15686.274hz

can you please help me how to set the code for this?

hi...

I have an L293D driver... I connect logic VSS from regulated 5V and the atmega8 too... the VS is connected through another 5V regulated voltage... it drives a little motor... but it doesn-t drive my tamiya box... everything is set up correctly and tested... why is this? when I measure the voltage on the motor pins it goes 4.95V and -4.95 every 5 seconds as it should go... but after I connect the motors and remove them, I measure again, I got 0.02 and -0.02... whats the problem?

hi

I used to have my QRD1114 with a 10K pull-up resistor and everything was fine... but look I replaced it with IR emitter and IR receiver/phototransistor... I put a 12K pull-up to 5V on the collector, and between the collector and the resistor I get the signal... but I got only around 1.4 - 1.6 why?

Any simple ideeas?

hello...

I'm still developing a code here...

can somebody test it out somehow?

I don't know what is the problem

the reciever or the transmitter

here is the code for the reciever:

Hello

I want to control 2 DC motors...

I set the Timer1 for fast pwm no problem... I run at 4 mhz....

what prescaller I need?

and even if I set the OCR1A and OCR1B the speed is constant... any ideea?

thanks

TCCR1A |= (1<<WGM10)|(1<<WGM11)|(1<<COM1B1)|(1<<COM1B0)|(1<<COM1A1)|(1<<COM1A0);

TCCR1B |= (1<<CS11)|(1<<WGM13)|(1<<WGM12); //prescaller