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Pull request #16: CITD-425 code examples 2
Merge in MCU16CE/dspic33e-code-examples from ~I62773/dspic33e-code-examples:feature/CITD-425-code-examples-2 to develop * commit '1043e40713852618f6e744cd292915ff8d1cd947': Updated Readme file Updated review comments Addressed review comments Addressed review comments CITD-425:Updated content version CITD-425:code-examples CITD-425:code-examples
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‎dspic33e-i2c-eeprom/.main-meta/main.json‎

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{
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"metaDataVersion":"1.0.0",
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"category":"com.microchip.ide.project",
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"content":{
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"metaDataVersion":"1.3.0",
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"name":"com.microchip.mplabx.project.dspic33e-i2c-eeprom",
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"version":"1.0.0",
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"displayName":"I2C Serial EEPROM Interface",
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"projectName":"dspic33e-i2c-eeprom",
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"shortDescription":"I2C Serial EEPROM Interface",
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"ide":{
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"name":"MPLABX",
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"semverRange":">=6.00"
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},
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"compiler":{
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"name":"XC16",
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"semverRange":"^2.00"
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},
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"dfp":{
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"name":"dsPIC33E-GM-GP-MC-GU-MU_DFP",
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"semverRange":"^1.3.85"
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},
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"device":{
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"metaDataVersion":"1.0.0",
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"category":"com.microchip.portal.contentRef",
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"content":{
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"metaDataVersion":"1.0.0",
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"category":"com.microchip.device",
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"name":"dsPIC33EP512MU810",
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"versionRange":"*"
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}
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},
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"peripherals":[
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"I2C"
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],
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"keywords":[
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"I2C"
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]
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}
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}

‎dspic33e-i2c-eeprom/README.md‎

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![image](../images/microchip.jpg)
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## I2C Serial EEPROM Interface
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## Description:
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In this code examples, 10bytes of data is written to I2C serial EEPROM and
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then read back using I2C peripheral.
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I2C EEPROM driver module takes two inputs viz., Command and Data Object
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Driver supports two commands viz., Read and Write
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// EEPROM DRIVER Module
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typedef struct {
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unsigned int cmd; // Command Input
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I2CEMEM_DATA *oData; // I2C Serial EEPROM Data Object
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void (*init)(void *);
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void (*tick)(void *);
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}I2CEMEM_DRV;
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I2C Serial EEPROM data object contains EEPROM address location, data buffer, size
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of the data buffer and chip select bits for device addressing
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// Data Object
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typedef struct {
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unsigned int *buff; // Data Buffer
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unsigned int n; // Size of the Data Buffer
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unsigned int addr; // EEPROM Address
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unsigned int csel; // Chip Select bits (A2,A1,A0 bits)
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}I2CEMEM_DATA;
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* I2C Serial EEPROM read/write operation begins with transmitting control byte first.
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This control byte contains 8bits as shown below
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| 1 | 0 | 1 | 0 | A2 | A1 | A0 | R/W |
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1010 is the code used for I2C Serial EEPROM peripheral and A2,A1,A0 is used for chip select (csel).
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* After the control byte, address of serial EEPROM is sent for read/write operation
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Small memory I2C EEPROM will use 1byte address and large memory I2C EEPROM will need 2byte addressing.
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User must select either 1byte memory address or 2byte memory address using
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i2cEmem.h file.
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// EEPROM ADDRESS SIZE
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#define ADDRWIDTH TWO_BYTE
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## Hardware Used
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- Explorer 16/32 Development Board (https://www.microchip.com/DM240001-2)
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- dsPIC33EP512GM710 PIM (https://www.microchip.com/ma330035) or dsPIC33EP512MU810 PIM (https://www.microchip.com/MA330025-1) or dsPIC33EP256GP506 PIM (https://www.microchip.com/MA330030)
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## Software Used
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- MPLAB® X IDE v6.00 or newer (https://www.microchip.com/mplabx)
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- MPLAB® XC16 v2.00 or newer (https://www.microchip.com/xc)
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‎dspic33e-i2c-eeprom/firmware/dspic33e-i2c-eeprom.X/Makefile‎

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#
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# There exist several targets which are by default empty and which can be
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# used for execution of your targets. These targets are usually executed
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# before and after some main targets. They are:
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#
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# .build-pre: called before 'build' target
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# .build-post: called after 'build' target
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# .clean-pre: called before 'clean' target
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# .clean-post: called after 'clean' target
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# .clobber-pre: called before 'clobber' target
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# .clobber-post: called after 'clobber' target
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# .all-pre: called before 'all' target
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# .all-post: called after 'all' target
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# .help-pre: called before 'help' target
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# .help-post: called after 'help' target
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#
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# Targets beginning with '.' are not intended to be called on their own.
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#
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# Main targets can be executed directly, and they are:
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#
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# build build a specific configuration
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# clean remove built files from a configuration
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# clobber remove all built files
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# all build all configurations
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# help print help mesage
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#
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# Targets .build-impl, .clean-impl, .clobber-impl, .all-impl, and
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# .help-impl are implemented in nbproject/makefile-impl.mk.
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#
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# Available make variables:
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#
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# CND_BASEDIR base directory for relative paths
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# CND_DISTDIR default top distribution directory (build artifacts)
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# CND_BUILDDIR default top build directory (object files, ...)
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# CONF name of current configuration
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# CND_ARTIFACT_DIR_${CONF} directory of build artifact (current configuration)
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# CND_ARTIFACT_NAME_${CONF} name of build artifact (current configuration)
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# CND_ARTIFACT_PATH_${CONF} path to build artifact (current configuration)
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# CND_PACKAGE_DIR_${CONF} directory of package (current configuration)
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# CND_PACKAGE_NAME_${CONF} name of package (current configuration)
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# CND_PACKAGE_PATH_${CONF} path to package (current configuration)
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#
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# NOCDDL
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# Environment
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MKDIR=mkdir
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CP=cp
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CCADMIN=CCadmin
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RANLIB=ranlib
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# build
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build: .build-post
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.build-pre:
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# Add your pre 'build' code here...
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.build-post: .build-impl
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# Add your post 'build' code here...
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# clean
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clean: .clean-post
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.clean-pre:
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# Add your pre 'clean' code here...
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# WARNING: the IDE does not call this target since it takes a long time to
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# simply run make. Instead, the IDE removes the configuration directories
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# under build and dist directly without calling make.
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# This target is left here so people can do a clean when running a clean
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# outside the IDE.
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.clean-post: .clean-impl
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# Add your post 'clean' code here...
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# clobber
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clobber: .clobber-post
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.clobber-pre:
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# Add your pre 'clobber' code here...
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.clobber-post: .clobber-impl
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# Add your post 'clobber' code here...
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# all
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all: .all-post
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.all-pre:
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# Add your pre 'all' code here...
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.all-post: .all-impl
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# Add your post 'all' code here...
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# help
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help: .help-post
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.help-pre:
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# Add your pre 'help' code here...
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.help-post: .help-impl
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# Add your post 'help' code here...
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# include project implementation makefile
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include nbproject/Makefile-impl.mk
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# include project make variables
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include nbproject/Makefile-variables.mk

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