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Hello,
Please advise how to compute for the delay due to excess load capacitance, meaning higher capacitance value than the CL of the driving device.
For example in SRAM which has CL of 50pF, it is driving the data bus. Aside from the SRAM, the mcu, flash, buffers are also driving the data...
Hello,
I am working on a project using a 16 bit mcu which is being connected to a 16 bit wide Flash Memory. I just want to know the reason behind why is the A0 bit of the microcontroller does not usually connect to A0 of the Flash memory (or some other types of memory device). A1 of the mcu is...
Hello,
DOes anyone know how to program, Philips PCF8566 LCD driver?
Just give me a hint like the program flow, from initializations, etc. and the likes.
Thanks,
Chris
uart theory
hello,
my target is to have a serial communication, which is purely software, no UART since f84 has no built in uart, and no interrupt as well. So therefore the program will look like this manner,
let say if i want to send capital C which is 43hex, to PC, i will send first the...
uart serial communication
hello,
Pls advise me how to implement serial communication tru software programming. il be using a pic16f84a which doesnt have a built in UART. I know the theory of serial communication and I want to implement it thru software programming. Please teach me how to...
What is the use of a coupling capacitor? bypass capacitor?
Can we not directly connect the amp circuits without using coupling capacitor?
Thanks,
Chris
pic16f84 crystal
Hello,
Can I used a higher frequency crystal oscillator for pic16f84a aside from 4MHz crystal? Say for example, an 11 Mhz or 20 Mhz crystal?
Regards,
Chris
pic16f627a programmer
Hello,
Does anyone know where to get programmer which support PIC16F627A. Some programmers like the ICprog only support, PIC16F627.
regards,
Chris:|
hello,
I have a problem in interfacing two microcontrollers thru their general purpose i/o.
The i/o of each mcu works properly if each was tested individually (w/o connecting them together). But when the two were already connected, we were not able to achieve the expected outcome of the...
mosfet stepper driver
hi,
Does anyone know have any idea or circuit about stepper motor driver using a mosfet? Can a 3.3V output from a microcontroller enough to saturate a 12V Vcc for Mosfet? Il be using the Mosfet as a switch, so can 3.3v input to the gate saturate the mosfet? il be using a...
schmitt trigger with pull down resistor
hi,
What is the typical value for a pull up or pull down resistor?
IL be using this in Microcontroller GPIOs.
tnx
Re: image sensor
has anyone used an image sensor particularly the CDD one?
What is the output of that image sensor, digital or analog, tnx
Added after 39 seconds:
CCD sensor i mean, not CDD
Hi,
How can I approximate the no of bytes that my program in PIC is using, so that i can maximize the 1KB cpacity of it.
Or in other word, how will i measure or know the number of bytes of my program in PIC
tnx
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