Goal: use of comparator
What we have: PIC16f628a, proteus
Experiment #7. Comparator using.
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Monthly Archives: October 2014
Experiment #6. LCD display.
Experiment #5. Using of interrupts.
Sometimes, we want to stop our program for a short time, perform some operations and run program from sttoping part (for example if timer was crowded or button was pressed). There is a great map of interrupts in pic microcontrollers from mikroe (look at the picture below).
PCB for fast development on pic16f628a (Devboard)
I’ve assembled my devboard and maybe it’ll be helpful for somebody.
Experiment #4. 7-segment indicator.
Goal: to show digits on seven segment indicator.
What we have: pic16f628a and 7-segment indicator with common cathode, shift register 74hc164.
From the start – I’ve used shift register because it’s very wasteful to use 8 pins of uc for one 7-segment indicator. With this shift register we can use only 4 pins:
- For clock
- For reset.
- For data.
- For supply transistor.
There is no description of the shift register work, just about 7-segment indicator.
So, for the begining, let’s build simple test setup and write code, which will display all digits with 1s period (like a stopwatch:)).
Experiment #3. Timer 0 module.
Our goal: To make 5Hz frequency pulses.
What we have: PIC16f628a.
Tmr0 is a widely used timer and it has next useful stuff:
- 8 bits timer/counter
- Programmable source of input clock signal
- Create the interrupt event on overflow
How-to update Suse from ISO
For successful update of a system, it’s necessary to connect your ISO file in the Yast and to give it name (ISO11_3 for example) and to turn off all other repos.
The next step is typing command in a terminal:
zypper dup -r ISO11_3
And just read what you need to do (type yes or no) and wait for complitely update.