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MPAE-19433 mplab project created and tested, working as expected
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‎README.md‎

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<!-- Please do not change this logo with link -->
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<!-- MPAE-19433 Please do not change this logo with link -->
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<a target="_blank" href="https://www.microchip.com/" id="top-of-page">
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<picture>
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</picture>
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</a>
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# Update the title for avr128db48-find-all-i2c-clients-on-bus-callback-printf-errors here
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# AVR128DB48 I2C_Host Example Component for CNano Explorer: Find all I2C Clients on Bus (Callbacks, Printf-errors)
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The following is the output, when Printf is selected as the Visualization Output.
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![alt text](images/Find_all_i2c_clients_callbacks_printf_avrDB.png)
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Full confgiguration.
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![alt text](images/Find_all_i2c_clients_callbacks_printfErrors_avrDB_configuration.png)
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The same configuration, when Printf with error handling is selected, generates the following output:
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![alt text](images/Find_all_i2c_clients_callbacks_printfErrors_avrDB.png)
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<!-- This is where the introduction to the example goes, including mentioning the peripherals used -->
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‎avr128db48-find-all-i2c-clients-on-bus-callback-printf-errors.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

‎avr128db48-find-all-i2c-clients-on-bus-callback-printf-errors.X/avr128db48-find-all-i2c-clients-on-bus-callback-printf-errors.mc3‎

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‎avr128db48-find-all-i2c-clients-on-bus-callback-printf-errors.X/avr128db48-find-all-i2c-clients-on-bus-callback-printf-errors.mc3.bak0‎

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‎avr128db48-find-all-i2c-clients-on-bus-callback-printf-errors.X/avr128db48-find-all-i2c-clients-on-bus-callback-printf-errors.mc3.bak1‎

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‎avr128db48-find-all-i2c-clients-on-bus-callback-printf-errors.X/avr128db48-find-all-i2c-clients-on-bus-callback-printf-errors.mc3.bak2‎

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‎avr128db48-find-all-i2c-clients-on-bus-callback-printf-errors.X/avr128db48-find-all-i2c-clients-on-bus-callback-printf-errors.mc3.bak3‎

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‎avr128db48-find-all-i2c-clients-on-bus-callback-printf-errors.X/main.c‎

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/*
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© [2025] Microchip Technology Inc. and its subsidiaries.
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Subject to your compliance with these terms, you may use Microchip
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software and any derivatives exclusively with Microchip products.
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You are responsible for complying with 3rd party license terms
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applicable to your use of 3rd party software (including open source
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software) that may accompany Microchip software. SOFTWARE IS ?AS IS.?
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NO WARRANTIES, WHETHER EXPRESS, IMPLIED OR STATUTORY, APPLY TO THIS
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SOFTWARE, INCLUDING ANY IMPLIED WARRANTIES OF NON-INFRINGEMENT,
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MERCHANTABILITY, OR FITNESS FOR A PARTICULAR PURPOSE. IN NO EVENT
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WILL MICROCHIP BE LIABLE FOR ANY INDIRECT, SPECIAL, PUNITIVE,
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INCIDENTAL OR CONSEQUENTIAL LOSS, DAMAGE, COST OR EXPENSE OF ANY
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KIND WHATSOEVER RELATED TO THE SOFTWARE, HOWEVER CAUSED, EVEN IF
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MICROCHIP HAS BEEN ADVISED OF THE POSSIBILITY OR THE DAMAGES ARE
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FORESEEABLE. TO THE FULLEST EXTENT ALLOWED BY LAW, MICROCHIP?S
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TOTAL LIABILITY ON ALL CLAIMS RELATED TO THE SOFTWARE WILL NOT
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EXCEED AMOUNT OF FEES, IF ANY, YOU PAID DIRECTLY TO MICROCHIP FOR
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THIS SOFTWARE.
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*/
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/**
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* I2C_HOST EXAMPLE Generated Driver File
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*
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* @file i2c_host example.c
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*
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* @ingroup i2c_host example
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*
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* @version I2C_HOST EXAMPLE Example Version 1.0.0
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*
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* @brief Generated file for
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* Example: 1. Find all I2C clients on bus
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* Implementation: Interrupts with callbacks
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* Visualization: Printf with error handling
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* MCU Device family: AVR
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*/
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#include "mcc_generated_files/system/system.h"
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#include "mcc_generated_files/timer/delay.h"
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uint8_t I2C_ProbeAll(const i2c_host_interface_t* i2cHost, uint8_t *deviceAddresses);
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void I2C_FindAndReportDevices(void);
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int main(void);
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extern const i2c_host_interface_t* i2cHost = &I2C_Host; //TODO: If want to change I2C Host instance, update pointer to I2C Host struct
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uint8_t I2C_ProbeAll(const i2c_host_interface_t* i2cHost, uint8_t *deviceAddresses)
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{
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uint8_t txData = 0;
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uint16_t txLength = 0;
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uint8_t devicesFound = 0;
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for (uint8_t probeAddress = 0U; probeAddress < 0x80U; probeAddress++)
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{
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i2cHost->Write((uint16_t)probeAddress, &txData, txLength);
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// Wait for I2C module to be ready
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while (i2cHost->IsBusy())
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{
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}
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i2c_host_error_t errorState = i2cHost->ErrorGet(); // Update errorState with the result of ErrorGet()
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if(errorState == I2C_ERROR_NONE)
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{
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deviceAddresses[devicesFound] = probeAddress;
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devicesFound++;
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(int) printf("Address: 0x%02X I2C_ERROR_NONE \r\n", probeAddress);
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IO_LED_Toggle();
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}
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else
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{
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// Handle the error appropriately
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switch (errorState)
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{
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case I2C_ERROR_ADDR_NACK:
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(int) printf("ERROR: NACK at 0x%02X\r\n", probeAddress);
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break;
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case I2C_ERROR_DATA_NACK:
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(int) printf("ERROR: Data NACK at 0x%02X\r\n", probeAddress);
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break;
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case I2C_ERROR_BUS_COLLISION:
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(int) printf("ERROR: Bus Collision at 0x%02X\r\n", probeAddress);
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break;
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default:
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(int) printf("ERROR: Unknown at 0x%02X\r\n", probeAddress);
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break;
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}
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}
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}
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(int) printf("End potential I2C bus addresses\r\n\r\n");
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return devicesFound;
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}
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void I2C_FindAndReportDevices(void)
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{
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uint8_t devicesFound = 0;
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uint8_t deviceAddresses[128];
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devicesFound = I2C_ProbeAll(i2cHost, deviceAddresses);
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(int) printf("\r\nDevices found = %u \r\n", devicesFound);
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for (uint8_t i = 0; i < devicesFound; i++)
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{
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(int) printf("0x%02X ", deviceAddresses[i]);
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}
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(int) printf("\r\n\r\n");
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IO_LED_SetLow(); //Turn LED on once all I2C Clients are found (assuming active low LED);
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}
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int main(void)
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{
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DELAY_milliseconds(200); // Prevent program running when programming
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SYSTEM_Initialize();
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(int) printf("Example: 1. Find all I2C clients on bus, Implementation: Interrupts with callbacks, Visualization: Printf with error handling\r\n\r\n");
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(int) printf("Looking for all devices on i2cHost\r\n");
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I2C_FindAndReportDevices();
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while(1){}
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}

‎avr128db48-find-all-i2c-clients-on-bus-callback-printf-errors.X/mcc-manifest-autosave.yml‎

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# This file has been autogenerated by MPLAB Code Configurator. Please do not edit this file.
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manifest_file_version: 1.0.0
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project: avr128db48-find-all-i2c-clients-on-bus-callback-printf-errors
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creation_date: 2025-04-10T12:56:46.868+02:00[Europe/Berlin]
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operating_system: Windows 11
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mcc_mode: IDE
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mcc_mode_version: v6.25
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device_name: AVR128DB48
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compiler: XC8 3.00
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mcc_version: 5.5.2
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mcc_core_version: 5.7.1
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content_manager_version: 5.0.1
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is_mcc_offline: false
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is_using_prerelease_versions: true
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mcc_content_registries: https://registry.npmjs.org/,https://artifacts.microchip.com/artifactory/api/npm/npm/
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device_library: {library_class: com.microchip.mcc.melody.Library, name: Melody, version: 2.8.1}
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packs: {name: AVR-Dx_DFP, version: 2.7.321}
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modules:
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- {name: '@mchp-mcc/avr-8bit', type: MELODY, version: 4.13.0}
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- {name: '@mchp-mcc/avr8-configuration-bits-v1', type: MELODY, version: 4.3.0}
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- {name: '@mchp-mcc/avr8-pin-manager', type: MELODY, version: 4.6.1}
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- {name: '@mchp-mcc/delay-blocking-driver', type: MELODY, version: 3.2.0}
24+
- {name: '@mchp-mcc/example-i2c-host', type: MELODY, version: 1.0.0}
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- {name: '@mchp-mcc/i2c-host-driver', type: MELODY, version: 1.1.0-dev.1}
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- {name: '@mchp-mcc/main-manager', type: MELODY, version: 3.1.2}
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- {name: '@mchp-mcc/pin-content-processor', type: MELODY, version: 3.9.1-feat.6}
28+
- {name: '@mchp-mcc/scf-avr8-clkctrl-v3', type: MELODY, version: 2.1.0-dev.1}
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- {name: '@mchp-mcc/scf-avr8-interrupt-v1', type: MELODY, version: 5.0.13-dev.1}
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- {name: '@mchp-mcc/scf-avr8-twi-v1', type: MELODY, version: 8.2.0}
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- {name: '@mchp-mcc/scf-avr8-usart-v1', type: MELODY, version: 10.2.1}
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- {name: '@mchp-mcc/uart-driver', type: MELODY, version: 1.10.2}

‎avr128db48-find-all-i2c-clients-on-bus-callback-printf-errors.X/mcc-manifest-generated-success.yml‎

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# This file has been autogenerated by MPLAB Code Configurator. Please do not edit this file.
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manifest_file_version: 1.0.0
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project: avr128db48-find-all-i2c-clients-on-bus-callback-printf-errors
5+
creation_date: 2025-04-10T12:56:46.838+02:00[Europe/Berlin]
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operating_system: Windows 11
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mcc_mode: IDE
8+
mcc_mode_version: v6.25
9+
device_name: AVR128DB48
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compiler: XC8 3.00
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mcc_version: 5.5.2
12+
mcc_core_version: 5.7.1
13+
content_manager_version: 5.0.1
14+
is_mcc_offline: false
15+
is_using_prerelease_versions: true
16+
mcc_content_registries: https://registry.npmjs.org/,https://artifacts.microchip.com/artifactory/api/npm/npm/
17+
device_library: {library_class: com.microchip.mcc.melody.Library, name: Melody, version: 2.8.1}
18+
packs: {name: AVR-Dx_DFP, version: 2.7.321}
19+
modules:
20+
- {name: '@mchp-mcc/avr-8bit', type: MELODY, version: 4.13.0}
21+
- {name: '@mchp-mcc/avr8-configuration-bits-v1', type: MELODY, version: 4.3.0}
22+
- {name: '@mchp-mcc/avr8-pin-manager', type: MELODY, version: 4.6.1}
23+
- {name: '@mchp-mcc/delay-blocking-driver', type: MELODY, version: 3.2.0}
24+
- {name: '@mchp-mcc/example-i2c-host', type: MELODY, version: 1.0.0}
25+
- {name: '@mchp-mcc/i2c-host-driver', type: MELODY, version: 1.1.0-dev.1}
26+
- {name: '@mchp-mcc/main-manager', type: MELODY, version: 3.1.2}
27+
- {name: '@mchp-mcc/pin-content-processor', type: MELODY, version: 3.9.1-feat.6}
28+
- {name: '@mchp-mcc/scf-avr8-clkctrl-v3', type: MELODY, version: 2.1.0-dev.1}
29+
- {name: '@mchp-mcc/scf-avr8-interrupt-v1', type: MELODY, version: 5.0.13-dev.1}
30+
- {name: '@mchp-mcc/scf-avr8-twi-v1', type: MELODY, version: 8.2.0}
31+
- {name: '@mchp-mcc/scf-avr8-usart-v1', type: MELODY, version: 10.2.1}
32+
- {name: '@mchp-mcc/uart-driver', type: MELODY, version: 1.10.2}

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