David Fletcher / Mbed 2 deprecated cc3100_Test_websock_Camera_CM4F

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Dependencies:   mbed

utils/i2cconfig.cpp@15:5433f9d94cd7, 2015-08-28 (annotated)

Committer:
dflet
Date:
Fri Aug 28 21:04:44 2015 +0000
Revision:
15:5433f9d94cd7
Child:
18:3f1b52616d00
Cam ov2640 working correctly, didnt know it also gave a jpeg header. App still not stable. Still a lot of work needed.

Who changed what in which revision?

UserRevisionLine numberNew contents of line
dflet 15:5433f9d94cd7 1 //*****************************************************************************
dflet 15:5433f9d94cd7 2 // i2cconfig.c
dflet 15:5433f9d94cd7 3 //
dflet 15:5433f9d94cd7 4 // I2C features APIs
dflet 15:5433f9d94cd7 5 //
dflet 15:5433f9d94cd7 6 // Copyright (C) 2014 Texas Instruments Incorporated - http://www.ti.com/
dflet 15:5433f9d94cd7 7 //
dflet 15:5433f9d94cd7 8 //
dflet 15:5433f9d94cd7 9 // Redistribution and use in source and binary forms, with or without
dflet 15:5433f9d94cd7 10 // modification, are permitted provided that the following conditions
dflet 15:5433f9d94cd7 11 // are met:
dflet 15:5433f9d94cd7 12 //
dflet 15:5433f9d94cd7 13 // Redistributions of source code must retain the above copyright
dflet 15:5433f9d94cd7 14 // notice, this list of conditions and the following disclaimer.
dflet 15:5433f9d94cd7 15 //
dflet 15:5433f9d94cd7 16 // Redistributions in binary form must reproduce the above copyright
dflet 15:5433f9d94cd7 17 // notice, this list of conditions and the following disclaimer in the
dflet 15:5433f9d94cd7 18 // documentation and/or other materials provided with the
dflet 15:5433f9d94cd7 19 // distribution.
dflet 15:5433f9d94cd7 20 //
dflet 15:5433f9d94cd7 21 // Neither the name of Texas Instruments Incorporated nor the names of
dflet 15:5433f9d94cd7 22 // its contributors may be used to endorse or promote products derived
dflet 15:5433f9d94cd7 23 // from this software without specific prior written permission.
dflet 15:5433f9d94cd7 24 //
dflet 15:5433f9d94cd7 25 // THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
dflet 15:5433f9d94cd7 26 // "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
dflet 15:5433f9d94cd7 27 // LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
dflet 15:5433f9d94cd7 28 // A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
dflet 15:5433f9d94cd7 29 // OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
dflet 15:5433f9d94cd7 30 // SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
dflet 15:5433f9d94cd7 31 // LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
dflet 15:5433f9d94cd7 32 // DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
dflet 15:5433f9d94cd7 33 // THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
dflet 15:5433f9d94cd7 34 // (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
dflet 15:5433f9d94cd7 35 // OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
dflet 15:5433f9d94cd7 36 //
dflet 15:5433f9d94cd7 37 //*****************************************************************************
dflet 15:5433f9d94cd7 38 //*****************************************************************************
dflet 15:5433f9d94cd7 39 //
dflet 15:5433f9d94cd7 40 //! \addtogroup i2cconfig
dflet 15:5433f9d94cd7 41 //! @{
dflet 15:5433f9d94cd7 42 //
dflet 15:5433f9d94cd7 43 //*****************************************************************************
dflet 15:5433f9d94cd7 44 #include <stdbool.h>
dflet 15:5433f9d94cd7 45 #include <stdint.h>
dflet 15:5433f9d94cd7 46 #include "mbed.h"
dflet 15:5433f9d94cd7 47
dflet 15:5433f9d94cd7 48 #include "i2cconfig.h"
dflet 15:5433f9d94cd7 49 #include "cli_uart.h"
dflet 15:5433f9d94cd7 50 #include "myBoardInit.h"
dflet 15:5433f9d94cd7 51
dflet 15:5433f9d94cd7 52
dflet 15:5433f9d94cd7 53
dflet 15:5433f9d94cd7 54 I2C i2c(PB_9, PB_8);
dflet 15:5433f9d94cd7 55
dflet 15:5433f9d94cd7 56
dflet 15:5433f9d94cd7 57 //*****************************************************************************
dflet 15:5433f9d94cd7 58 //
dflet 15:5433f9d94cd7 59 //! I2CInit
dflet 15:5433f9d94cd7 60 //!
dflet 15:5433f9d94cd7 61 //! \param Delay
dflet 15:5433f9d94cd7 62 //! \return None
dflet 15:5433f9d94cd7 63 //
dflet 15:5433f9d94cd7 64 //*****************************************************************************
dflet 15:5433f9d94cd7 65 uint32_t I2CInit()
dflet 15:5433f9d94cd7 66 {
dflet 15:5433f9d94cd7 67
dflet 15:5433f9d94cd7 68 i2c.frequency (100000);
dflet 15:5433f9d94cd7 69
dflet 15:5433f9d94cd7 70 return 0;
dflet 15:5433f9d94cd7 71 }
dflet 15:5433f9d94cd7 72 //****************************************************************************
dflet 15:5433f9d94cd7 73 //
dflet 15:5433f9d94cd7 74 //! Invokes the I2C driver APIs to read from the device. This assumes the
dflet 15:5433f9d94cd7 75 //! device local address to read from is set using the I2CWrite API.
dflet 15:5433f9d94cd7 76 //!
dflet 15:5433f9d94cd7 77 //! \param ucDevAddr is the device I2C slave address
dflet 15:5433f9d94cd7 78 //! \param ucBuffer is the pointer to the read data to be placed
dflet 15:5433f9d94cd7 79 //! \param ulSize is the length of data to be read
dflet 15:5433f9d94cd7 80 //! \param ucFlags Flag
dflet 15:5433f9d94cd7 81 //!
dflet 15:5433f9d94cd7 82 //! This function works in a polling mode,
dflet 15:5433f9d94cd7 83 //! 1. Writes the device register address to be written to.
dflet 15:5433f9d94cd7 84 //! 2. In a loop, reads all the bytes over I2C
dflet 15:5433f9d94cd7 85 //!
dflet 15:5433f9d94cd7 86 //! \return 0: Success, < 0: Failure.
dflet 15:5433f9d94cd7 87 //
dflet 15:5433f9d94cd7 88 //****************************************************************************
dflet 15:5433f9d94cd7 89 int32_t I2CBufferRead(int32_t ucDevAddr, uint8_t *ucBuffer,
dflet 15:5433f9d94cd7 90 int32_t ulSize, unsigned char ucFlags)
dflet 15:5433f9d94cd7 91 {
dflet 15:5433f9d94cd7 92 // Uart_Write((uint8_t*)"I2CBufferRead \n\r");
dflet 15:5433f9d94cd7 93 /*
dflet 15:5433f9d94cd7 94 i2c.start();
dflet 15:5433f9d94cd7 95
dflet 15:5433f9d94cd7 96 // Set I2C slave read address
dflet 15:5433f9d94cd7 97 i2c.write(ucDevAddr);
dflet 15:5433f9d94cd7 98 if(ulSize == 1){
dflet 15:5433f9d94cd7 99 ucBuffer[0] = i2c.read(0);
dflet 15:5433f9d94cd7 100 }else{
dflet 15:5433f9d94cd7 101 for(int i=0;i<ulSize;i++){
dflet 15:5433f9d94cd7 102 ucBuffer[i] = i2c.read(0);
dflet 15:5433f9d94cd7 103 }
dflet 15:5433f9d94cd7 104 }
dflet 15:5433f9d94cd7 105
dflet 15:5433f9d94cd7 106 i2c.stop();
dflet 15:5433f9d94cd7 107 */
dflet 15:5433f9d94cd7 108 int32_t err = 0;
dflet 15:5433f9d94cd7 109
dflet 15:5433f9d94cd7 110 err = i2c.read(ucDevAddr,(char*)ucBuffer,ulSize);
dflet 15:5433f9d94cd7 111 if(err == 1){
dflet 15:5433f9d94cd7 112 Uart_Write((uint8_t*)"Return error I2C read\n\r");
dflet 15:5433f9d94cd7 113 return -1;
dflet 15:5433f9d94cd7 114 }
dflet 15:5433f9d94cd7 115 // wait_ms(1);
dflet 15:5433f9d94cd7 116 return 0;
dflet 15:5433f9d94cd7 117 }
dflet 15:5433f9d94cd7 118 //****************************************************************************
dflet 15:5433f9d94cd7 119 //
dflet 15:5433f9d94cd7 120 //! Invokes the I2C driver APIs to write to the specified address
dflet 15:5433f9d94cd7 121 //!
dflet 15:5433f9d94cd7 122 //! \param ucDevAddr is the device I2C slave address
dflet 15:5433f9d94cd7 123 //! \param ucBuffer is the pointer to the data to be written
dflet 15:5433f9d94cd7 124 //! \param ulSize is the length of data to be written
dflet 15:5433f9d94cd7 125 //! \param ucFlags
dflet 15:5433f9d94cd7 126 //!
dflet 15:5433f9d94cd7 127 //! This function works in a polling mode,
dflet 15:5433f9d94cd7 128 //! 1. Writes the device register address to be written to.
dflet 15:5433f9d94cd7 129 //! 2. In a loop, writes all the bytes over I2C
dflet 15:5433f9d94cd7 130 //!
dflet 15:5433f9d94cd7 131 //! \return 0: Success, < 0: Failure.
dflet 15:5433f9d94cd7 132 //
dflet 15:5433f9d94cd7 133 //****************************************************************************
dflet 15:5433f9d94cd7 134
dflet 15:5433f9d94cd7 135 int32_t I2CBufferWrite(int32_t ucDevAddr, uint8_t *ucBuffer,
dflet 15:5433f9d94cd7 136 int32_t ulSize,unsigned char ucFlags)
dflet 15:5433f9d94cd7 137 {
dflet 15:5433f9d94cd7 138 // Uart_Write((uint8_t*)"I2CBufferWrite \n\r");
dflet 15:5433f9d94cd7 139 /*
dflet 15:5433f9d94cd7 140 i2c.start();
dflet 15:5433f9d94cd7 141
dflet 15:5433f9d94cd7 142 // Set I2C slave write address
dflet 15:5433f9d94cd7 143 i2c.write(ucDevAddr);
dflet 15:5433f9d94cd7 144
dflet 15:5433f9d94cd7 145 if(ulSize == 1){
dflet 15:5433f9d94cd7 146 i2c.write(ucBuffer[0]);
dflet 15:5433f9d94cd7 147 }else{
dflet 15:5433f9d94cd7 148 for(int i=0;i<ulSize;i++){
dflet 15:5433f9d94cd7 149 i2c.write(ucBuffer[i]);
dflet 15:5433f9d94cd7 150 }
dflet 15:5433f9d94cd7 151 }
dflet 15:5433f9d94cd7 152
dflet 15:5433f9d94cd7 153 i2c.stop();
dflet 15:5433f9d94cd7 154 */
dflet 15:5433f9d94cd7 155 int32_t err = 0;
dflet 15:5433f9d94cd7 156
dflet 15:5433f9d94cd7 157 err = i2c.write(ucDevAddr,(char*)ucBuffer,ulSize);
dflet 15:5433f9d94cd7 158 if(err == 1){
dflet 15:5433f9d94cd7 159 Uart_Write((uint8_t*)"Return error I2C write\n\r");
dflet 15:5433f9d94cd7 160 return -1;
dflet 15:5433f9d94cd7 161 }
dflet 15:5433f9d94cd7 162 // wait_ms(1);
dflet 15:5433f9d94cd7 163 return 0;
dflet 15:5433f9d94cd7 164 }
dflet 15:5433f9d94cd7 165
dflet 15:5433f9d94cd7 166 //*****************************************************************************
dflet 15:5433f9d94cd7 167 //
dflet 15:5433f9d94cd7 168 // Close the Doxygen group.
dflet 15:5433f9d94cd7 169 //! @}
dflet 15:5433f9d94cd7 170 //
dflet 15:5433f9d94cd7 171 //*****************************************************************************
dflet 15:5433f9d94cd7 172
dflet 15:5433f9d94cd7 173