Answer to Question #233129 in Assembler for alex

Question

Write complete programs for PIC16F84A :

The CPU execute two tasks in parallel. First task will be a normal program Execution loop which continuously tests an active-low switch connected to RB3. When the switch is pressed, an activehigh LED connected to RB4 will turn on for 1 sec (using software delay). Any switch presses while the LED on will not be detected as the CPU busy in the 1 sec software delay. After the delay and the LED is off, CPU will return to testing the active-low switch. The second task will be to toggle an active-high LED connect to RA1 every 0.25 sec. Timer0 will be configured to generate an interrupt every 0.25 sec, and the code to toggle LED will be placed in the ISR. Timing accuracy requirements is ±1% using 800 kHz RC oscillator.

this subject is under engineering electrical but also in assembly code.

Answer 1

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