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atmega 128 x 64 lcd
To be sure you can look for the IC numbers in teh back of your LCD. You can have some memory ICs but you will find a microprocessor IC in your LCD module. Looking for the datasheet of that processor you will find the instructtions and so on.
Fortunatelly the are no many...
right leg driven circuit
For the right leg you can just add the signal from all the input leads, invert it and apply it to the right leg. It is called active right leg circuit.
Other choice is just to apply gnd or just a mid point voltage from your input ISOLATED circuit to the right leg. It...
rs232 splitter circuit
Not sure to understand correctly.
As an exercise is fine. I am sure will could fine a way to do it following the splitter idea. maybe you nedd some intelligence in the splitter
When I read it, it first came to my mind tha rs232 is a pint to point communication by...
CMOS,
like someone before me, I don't see were you count the samples. So I can not tell were you clean (set to zero) the sum variable every AVG_FILTER_WINDOW_SIZE samples.
If you are really want to make the calculation at every sample and NOT every AVG_FILTER_WINDOW_SIZE samples then you...
Hi,
I am not sure I understand completely your code, but I do agree that results should be close for different windows sizes.
So if you increase your windows, the sum of weight should also increase. You have to provide more samples before divide.
You can accomplish that modifying something...
servo pic16f877
hi,
Before you get into sofware generated PWM maybe you have a choice.
What if you do not multiplex the PWM itself but instead use sample & hold circuits. So you keep the DC after the filter for each motor. Then you will need only one PWM output and four other pins to control...
One posible solution would be to filter your signals to remove the offset. This can be done by a High pass filter with discret componets or by soft inside the 16F877. The soft aproach using F877 can be a very time consuming programming task.
Then you could measure the amplitud in a time window...
Re: PIC power on problem
For me most of these problems can be found with the simulator in the mplab enviroment (free at microchip site)
There you can set up watches for TRISO, GPIO, CMCON, ANSEL and any other register involved.
There you will have the problem "almost" like with the circuit in...
Re: PIC power on problem
I have just remebered that 12f675 has an analog converter, or comparator.
In that case, along with the TRISIO, you also need to set values for teh ANSEL register. Unfortunetly by default, on startup, this pins are analog, so your led would not be controlled by a...
Re: Assembly codes for PICs - question in bank memory change
Yes, it will be necesary.
Names are the same as address, they are just for human confort(if there is any)
It is all about instrucctions, they just work with the active bank. That's why mplab wanings tell you to beware of bank...
Sorry. Iam a PIC fan.
But I am also not blind. Usualy avr is faster, it uses actually isntruccion per clock.
AVR has very good peripherals as well.
But one of the things I like the most from microchip is that is has some many applications notes that there is a very good chance that whatever...
Most of the time you can not measure the exact value, it depends on the circuit. But you do can make some good guess
many electronic componets when fail, they go to opened or short circuit. So if you measure opened or short sometimes it is good enough
semiconductors can also be measured most...
hexadecimal to decimal conversion assembly
You can also count directly in decimal. Then you will need to use de decimal adjust instrucction.
It will be faster than the division required to convert from hexadecimal and you can also look at the value in memory when you simulate
Most of the time you want something fast. This meas you dont have to spend too much time learning.
FTDI provides some circuits that allows to simplifi the USB interface to a simple serial o parralle port. So you convert the USB problem to an already known serial o parrallel interface.
Just...
Re: PIC power on problem
You also need to look at some details such as the configuration word when programming.
make sure that the Brownout, the Power on timer, the Wach Dog, and some other features are at known state according to your purposes.
For example, if by any chance you the watch dog...
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