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| author | Fabian Topfstedt <topfstedt@schneevonmorgen.com> | 2017-07-31 21:17:16 +0200 |
|---|---|---|
| committer | Fabian Topfstedt <topfstedt@schneevonmorgen.com> | 2017-07-31 21:17:16 +0200 |
| commit | 9609a47c3e2050f252378386c0ce2b37b4c2aed8 (patch) | |
| tree | 644105ce37b2b23532253555f62ba52693b3c1d3 /keyboards/deltasplit75/i2c.h | |
| parent | 661106bac466f99341edea9d2e38e2f8c75746d9 (diff) | |
| parent | bd0a888133d7f7c701574ac467c0f4be71221cc7 (diff) | |
| download | qmk_firmware-9609a47c3e2050f252378386c0ce2b37b4c2aed8.tar.gz qmk_firmware-9609a47c3e2050f252378386c0ce2b37b4c2aed8.tar.xz | |
Merge https://github.com/qmk/qmk_firmware
Diffstat (limited to 'keyboards/deltasplit75/i2c.h')
| -rw-r--r-- | keyboards/deltasplit75/i2c.h | 31 |
1 files changed, 31 insertions, 0 deletions
diff --git a/keyboards/deltasplit75/i2c.h b/keyboards/deltasplit75/i2c.h new file mode 100644 index 000000000..cc3910806 --- /dev/null +++ b/keyboards/deltasplit75/i2c.h @@ -0,0 +1,31 @@ +#ifndef I2C_H
+#define I2C_H
+
+#include <stdint.h>
+
+#ifndef F_CPU
+#define F_CPU 16000000UL
+#endif
+
+#define I2C_READ 1
+#define I2C_WRITE 0
+
+#define I2C_ACK 1
+#define I2C_NACK 0
+
+#define SLAVE_BUFFER_SIZE 0x10
+
+// i2c SCL clock frequency
+#define SCL_CLOCK 100000L
+
+extern volatile uint8_t i2c_slave_buffer[SLAVE_BUFFER_SIZE];
+
+void i2c_master_init(void);
+uint8_t i2c_master_start(uint8_t address);
+void i2c_master_stop(void);
+uint8_t i2c_master_write(uint8_t data);
+uint8_t i2c_master_read(int);
+void i2c_reset_state(void);
+void i2c_slave_init(uint8_t address);
+
+#endif
|