51 lines
1.6 KiB
C
51 lines
1.6 KiB
C
#pragma once
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#include <util/delay.h>
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#include <stdint.h>
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#include <stdbool.h>
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#include "quantum.h"
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#include "i2c_master.h"
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#include "matrix.h"
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extern i2c_status_t mcp23018_status;
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#define ERGODOX_EZ_I2C_TIMEOUT 1000
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#define CPU_PRESCALE(n) (CLKPR = 0x80, CLKPR = (n))
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#define CPU_16MHz 0x00
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// I2C aliases and register addresses (see "mcp23018.md")
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//#define I2C_ADDR 0b0100000
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#define I2C_ADDR 0x20
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#define I2C_ADDR_WRITE ( (I2C_ADDR<<1) | I2C_WRITE )
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#define I2C_ADDR_READ ( (I2C_ADDR<<1) | I2C_READ )
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#define IODIRA 0x00 // i/o direction register
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#define IODIRB 0x01
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#define GPPUA 0x0C // GPIO pull-up resistor register
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#define GPPUB 0x0D
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#define GPIOA 0x12 // general purpose i/o port register (write modifies OLAT)
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#define GPIOB 0x13
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#define OLATA 0x14 // output latch register
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#define OLATB 0x15
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void init_ergodox(void);
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uint8_t init_mcp23018(void);
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/* ---------- LEFT HAND ----------- ---------- RIGHT HAND ---------- */
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#define LAYOUT( \
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L00,L01,L02,L03,L04,L05, R00,R01,R02,R03,R04,R05) \
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\
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/* matrix positions */ \
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{ \
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{R00}, \
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{R01}, \
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{R02}, \
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{R03}, \
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{R04}, \
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{R05}, \
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{L05}, \
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{L04}, \
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{L03}, \
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{L02}, \
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{L01}, \
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{L00}, \
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}
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