initial WIP

lots of code copied over, things filled in to hopefully get the LED matrix lighting up. untested.

firmware/app/comms/soft_i2c_master.h

@@ -0,0 +1,28 @@
+/*
+ * soft_i2c.h
+ */
+
+#ifndef USER_COMM_SOFT_I2C_MASTER_H_
+#define USER_COMM_SOFT_I2C_MASTER_H_
+
+#include <ch32x035.h>
+#include <stdint.h>
+
+
+
+void i2cm_init();
+
+void i2cm_start();
+void i2cm_restart();
+void i2cm_stop();
+
+uint8_t i2cm_rd(uint8_t ack);
+uint8_t i2cm_wr(uint8_t dat);
+uint8_t i2cm_addr(uint8_t addr, uint8_t reading_bit);
+
+void i2cm_rdbuf(uint8_t *dat, uint16_t len);
+void i2cm_wrbuf(const uint8_t *dat, uint16_t len);
+
+
+
+#endif /* USER_COMM_SOFT_I2C_MASTER_H_ */