759597d8f9 | ||
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.. | ||
Makefile | ||
main.c | ||
main.elf | ||
main.hex | ||
main.o | ||
readme.txt |
readme.txt
Registers involved: GPIO: DDRA: Data Direction Register for Port A= 0xFF for output (Port A- pin 22:29) DDRB: Data Direction Register for Port B= 0x00 for input (Port B- pin 53:50[B0:B3] & pin 10:13[B4:B7] ) DDRC: Data Direction Register for Port C= 0xFF for output (Port C- pin 37:30) PORTB: Port B Data Register PINB: Port B Input Pins Address About pull-up and pull-down resistors: