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Added OLED SSD1306 support to I2C

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This commit is contained in:
ishtob 2017-03-22 15:04:11 -04:00 • committed by GitHub
parent 423c68c210
commit 65317a3a02
8 changed files with 908 additions and 21 deletions
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20
keyboards/lets_split/i2c.h
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@ -16,7 +16,7 @@
#define SLAVE_BUFFER_SIZE 0x10
// i2c SCL clock frequency
#define SCL_CLOCK 100000L
#define SCL_CLOCK 400000L
extern volatile uint8_t i2c_slave_buffer[SLAVE_BUFFER_SIZE];
@ -28,4 +28,22 @@ uint8_t i2c_master_read(int);
void i2c_reset_state(void);
void i2c_slave_init(uint8_t address);
static inline unsigned char i2c_start_read(unsigned char addr) {
return i2c_master_start((addr << 1) | I2C_READ);
}
static inline unsigned char i2c_start_write(unsigned char addr) {
return i2c_master_start((addr << 1) | I2C_WRITE);
}
// from SSD1306 scrips
extern unsigned char i2c_rep_start(unsigned char addr);
extern void i2c_start_wait(unsigned char addr);
extern unsigned char i2c_readAck(void);
extern unsigned char i2c_readNak(void);
extern unsigned char i2c_read(unsigned char ack);
#define i2c_read(ack) (ack) ? i2c_readAck() : i2c_readNak();
#endif