I2C-shift-registers
Note: current development - build may be unstable / not working
#define
#define dir 0bdddddddd
- 0 INPUT
- 1 OUTPUT
- default 0b11110000
#define addr 0xaddr
- I2C Address
- default 0x8
Pin Mapping
PORTC
0: NC
1: NC
2: NC
3: NC
4: SDA
5: SCL
6: /RESET
PORTD
0: 0b00000001 (1 << 0)
1: 0b00000010 (1 << 1)
2: 0b00000100 (1 << 2)
3: 0b00001000 (1 << 3)
4: 0b00010000 (1 << 4)
5: 0b00100000 (1 << 5)
6: 0b01000000 (1 << 6)
7: 0b10000000 (1 << 7)
PORTB
0: CLK
1: STORE + /LOAD
2: Interrupt
3: MOSI (ISCP)
4: MISO (ISCP)
5: SCK (ISCP)
6: XTAL1
7: XTAL2