You cannot select more than 25 topics
Topics must start with a letter or number, can include dashes ('-') and can be up to 35 characters long.
180 lines
5.3 KiB
C
180 lines
5.3 KiB
C
// TI File $Revision: /main/2 $
|
|
// Checkin $Date: April 16, 2008 17:16:47 $
|
|
//###########################################################################
|
|
//
|
|
// FILE: DSP2833x_I2cExample.h
|
|
//
|
|
// TITLE: 2833x I2C Example Code Definitions.
|
|
//
|
|
//###########################################################################
|
|
// $TI Release: $
|
|
// $Release Date: $
|
|
// $Copyright:
|
|
// Copyright (C) 2009-2024 Texas Instruments Incorporated - http://www.ti.com/
|
|
//
|
|
// Redistribution and use in source and binary forms, with or without
|
|
// modification, are permitted provided that the following conditions
|
|
// are met:
|
|
//
|
|
// Redistributions of source code must retain the above copyright
|
|
// notice, this list of conditions and the following disclaimer.
|
|
//
|
|
// Redistributions in binary form must reproduce the above copyright
|
|
// notice, this list of conditions and the following disclaimer in the
|
|
// documentation and/or other materials provided with the
|
|
// distribution.
|
|
//
|
|
// Neither the name of Texas Instruments Incorporated nor the names of
|
|
// its contributors may be used to endorse or promote products derived
|
|
// from this software without specific prior written permission.
|
|
//
|
|
// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
|
|
// "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
|
|
// LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
|
|
// A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
|
|
// OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
|
|
// SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
|
|
// LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
|
|
// DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
|
|
// THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
|
|
// (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
|
|
// OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
|
|
// $
|
|
//###########################################################################
|
|
|
|
#ifndef DSP2833x_I2C_DEFINES_H
|
|
#define DSP2833x_I2C_DEFINES_H
|
|
|
|
//
|
|
// Defines
|
|
//
|
|
|
|
//
|
|
// Error Messages
|
|
//
|
|
#define I2C_ERROR 0xFFFF
|
|
#define I2C_ARB_LOST_ERROR 0x0001
|
|
#define I2C_NACK_ERROR 0x0002
|
|
#define I2C_BUS_BUSY_ERROR 0x1000
|
|
#define I2C_STP_NOT_READY_ERROR 0x5555
|
|
#define I2C_NO_FLAGS 0xAAAA
|
|
#define I2C_SUCCESS 0x0000
|
|
|
|
//
|
|
// Clear Status Flags
|
|
//
|
|
#define I2C_CLR_AL_BIT 0x0001
|
|
#define I2C_CLR_NACK_BIT 0x0002
|
|
#define I2C_CLR_ARDY_BIT 0x0004
|
|
#define I2C_CLR_RRDY_BIT 0x0008
|
|
#define I2C_CLR_SCD_BIT 0x0020
|
|
|
|
//
|
|
// Interrupt Source Messages
|
|
//
|
|
#define I2C_NO_ISRC 0x0000
|
|
#define I2C_ARB_ISRC 0x0001
|
|
#define I2C_NACK_ISRC 0x0002
|
|
#define I2C_ARDY_ISRC 0x0003
|
|
#define I2C_RX_ISRC 0x0004
|
|
#define I2C_TX_ISRC 0x0005
|
|
#define I2C_SCD_ISRC 0x0006
|
|
#define I2C_AAS_ISRC 0x0007
|
|
|
|
//
|
|
// I2CMSG structure defines
|
|
//
|
|
#define I2C_NO_STOP 0
|
|
#define I2C_YES_STOP 1
|
|
#define I2C_RECEIVE 0
|
|
#define I2C_TRANSMIT 1
|
|
#define I2C_MAX_BUFFER_SIZE 16
|
|
|
|
//
|
|
// I2C Slave State defines
|
|
//
|
|
#define I2C_NOTSLAVE 0
|
|
#define I2C_ADDR_AS_SLAVE 1
|
|
#define I2C_ST_MSG_READY 2
|
|
|
|
//
|
|
// I2C Slave Receiver messages defines
|
|
//
|
|
#define I2C_SND_MSG1 1
|
|
#define I2C_SND_MSG2 2
|
|
|
|
//
|
|
// I2C State defines
|
|
//
|
|
#define I2C_IDLE 0
|
|
#define I2C_SLAVE_RECEIVER 1
|
|
#define I2C_SLAVE_TRANSMITTER 2
|
|
#define I2C_MASTER_RECEIVER 3
|
|
#define I2C_MASTER_TRANSMITTER 4
|
|
|
|
//
|
|
// I2C Message Commands for I2CMSG struct
|
|
//
|
|
#define I2C_MSGSTAT_INACTIVE 0x0000
|
|
#define I2C_MSGSTAT_SEND_WITHSTOP 0x0010
|
|
#define I2C_MSGSTAT_WRITE_BUSY 0x0011
|
|
#define I2C_MSGSTAT_SEND_NOSTOP 0x0020
|
|
#define I2C_MSGSTAT_SEND_NOSTOP_BUSY 0x0021
|
|
#define I2C_MSGSTAT_RESTART 0x0022
|
|
#define I2C_MSGSTAT_READ_BUSY 0x0023
|
|
|
|
//
|
|
// Generic defines
|
|
//
|
|
#define I2C_TRUE 1
|
|
#define I2C_FALSE 0
|
|
#define I2C_YES 1
|
|
#define I2C_NO 0
|
|
#define I2C_DUMMY_BYTE 0
|
|
|
|
//
|
|
// Structures
|
|
//
|
|
|
|
//
|
|
// I2C Message Structure
|
|
//
|
|
struct I2CMSG
|
|
{
|
|
Uint16 MsgStatus; // Word stating what state msg is in:
|
|
// I2C_MSGCMD_INACTIVE = do not send msg
|
|
// I2C_MSGCMD_BUSY = msg start has been sent,
|
|
// awaiting stop
|
|
// I2C_MSGCMD_SEND_WITHSTOP = command to send
|
|
// master trans msg complete with a stop bit
|
|
// I2C_MSGCMD_SEND_NOSTOP = command to send
|
|
// master trans msg without the stop bit
|
|
// I2C_MSGCMD_RESTART = command to send a restart
|
|
// as a master receiver with a stop bit
|
|
Uint16 SlaveAddress; // I2C address of slave msg is intended for
|
|
Uint16 NumOfBytes; // Num of valid bytes in (or to be put in MsgBuffer)
|
|
|
|
//
|
|
// EEPROM address of data associated with msg (high byte)
|
|
//
|
|
Uint16 MemoryHighAddr;
|
|
|
|
//
|
|
// EEPROM address of data associated with msg (low byte)
|
|
//
|
|
Uint16 MemoryLowAddr;
|
|
|
|
//
|
|
// Array holding msg data - max that MAX_BUFFER_SIZE can be is 16 due to
|
|
// the FIFO's
|
|
Uint16 MsgBuffer[I2C_MAX_BUFFER_SIZE];
|
|
};
|
|
|
|
|
|
#endif // end of DSP2833x_I2C_DEFINES_H definition
|
|
|
|
//
|
|
// End of file
|
|
//
|
|
|