j3d1/RTL00_WEB
1
0
Fork 0
mirror of https://github.com/pvvx/RTL00_WEB.git synced 2025-07-31 20:31:05 +00:00
Code Issues Projects Releases Packages Wiki Activity

add i2c sample

Browse source
This commit is contained in:
pvvx 2017-05-06 17:50:18 +03:00
parent 1752a87a8e
commit 60ffc5c30f
8 changed files with 929 additions and 8 deletions
Download patch file Download diff file Expand all files Collapse all files

55
project/inc/driver/i2c_drv.h Normal file
View file

@ -0,0 +1,55 @@
/*
* i2c_drv.h
*
* Created on: 02/05/2017.
* Author: pvvx
*/
#ifndef PROJECT_INC_DRIVER_I2C_DRV_H_
#define PROJECT_INC_DRIVER_I2C_DRV_H_
#include "device.h"
typedef struct _I2C_HND_ {
signed char status;
unsigned char idx;
unsigned char io_sel;
unsigned char mode; // if(I2C_FIXED_SPEED_MODE != 0) user set -> i2c_mode_e
void * base_regs;
} i2c_drv_t, *i2c_drv_p;
typedef enum
{
DRV_I2C_OFF = 0, // IC I2C DeInit
DRV_I2C_OK = 0, // DRV ret Ok
DRV_I2C_IC_OFF = 1, // IC I2C Off
DRV_I2C_IC_ENABLE = 2, // IC I2C On
DRV_I2C_ERR = -1, // DRV ret err
DRV_I2C_ABORT = -1, // IC I2C Abort
DRV_I2C_TIMEOUT = -3 // IC I2C / DRV ret Timeout
} _i2c_status_e;
typedef enum
{
DRV_I2C_SS_MODE = 1, // Standard Mode (100 Kbps)
DRV_I2C_FS_MODE = 2, // Fast Mode (400 Kbps)
DRV_I2C_HS_MODE = 3 // Fast Mode Plus (1 Mbps)
} _i2c_mode_e;
#define DRV_I2C_POOL_TIMEOUT 16384
#define _i2c_deinit(p) _i2c_ic_off(p)
// Setup
int _i2c_setup(i2c_drv_t *pi2c, PinName sda, PinName scl, unsigned char mode); // _i2c_mode_e
int _i2c_set_speed(i2c_drv_t *pi2c, uint32 clk_hz);
// Work
int _i2c_init(i2c_drv_t *pi2c);
int _i2c_write(i2c_drv_t *pi2c, uint32 address, const char *data, int length, int stop);
int _i2c_read(i2c_drv_t *pi2c, uint32 address, const char *data, int length, int stop);
// Utils
int _i2c_break(i2c_drv_t *pi2c);
void _i2c_ic_off(i2c_drv_t *pi2c);
#endif /* PROJECT_INC_DRIVER_I2C_DRV_H_ */