72fd49b146
* DC01 initial commit - Addition of directories - Left readme * Initial commit of left half * Initial files for right half * arrow * i2c adjustments * I2C slave and DC01 refractoring - Cleaned up state machine of I2C slave driver - Modified DC01 left to use already pressent I2C master driver - Modified DC01 matrixes * Fixed tabs to spaces * Addition of Numpad * Add keymaps - Orthopad keymap for numpad module - Numpad keymap for numpad module - ISO, ANSI and HHKB version of keymap for right module * Minor matrix.c fixes * Update Readmes
31 lines
567 B
C
31 lines
567 B
C
#ifndef I2C_H
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#define I2C_H
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#include <stdint.h>
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#ifndef F_CPU
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#define F_CPU 16000000UL
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#endif
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#define I2C_READ 1
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#define I2C_WRITE 0
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#define I2C_ACK 1
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#define I2C_NACK 0
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#define SLAVE_BUFFER_SIZE 0x10
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// i2c SCL clock frequency
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#define SCL_CLOCK 400000L
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extern volatile uint8_t i2c_slave_buffer[SLAVE_BUFFER_SIZE];
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void i2c_master_init(void);
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uint8_t i2c_master_start(uint8_t address);
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void i2c_master_stop(void);
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uint8_t i2c_master_write(uint8_t data);
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uint8_t i2c_master_read(int);
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void i2c_reset_state(void);
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void i2c_slave_init(uint8_t address);
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#endif
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