FOTA Agent

Table of Contents

• Features Supported
• Example Usage
• API

The Fota Agent driver provides API to Update Firmware over The Air by scheduling the writes in chunks of smaller size while the new image is being recieved over a certain protocol(CAN for example).

Features Supported

• Supports Writes in sector size.
• Only ELF image format supported
• Both XIP and Non-XIP files

Example Usage

Include the below file to access the APIs

#include <stdio.h>
#include <drivers/fota_agent/v0/fota_agent.h>

Init API

    FOTAAgent_Handle fotaAgentHandle;
    FOTAAgent_Params agentParams;
    uint8_t gFotaAgentProcessingBuffer[WRITE_CHUNK_SIZE];
    ELFUP_ELFPH gProgramHeaderArray[MAX_ELF_PROGRAM_HEADER];
 
    FOTAAgent_Params_init(&agentParams);
    agentParams.pProcessingBuffer = gFotaAgentProcessingBuffer;
    agentParams.pProgramHeader = gProgramHeaderArray;
    agentParams.programHeaderCnt = MAX_ELF_PROGRAM_HEADER;
    FOTAAgent_init(&fotaAgentHandle, &agentParams);

Write Start API

    status = FOTAAgent_writeStart(&fotaAgentHandle, offset, TRUE);

Write Update API

    for(int i = 0; i < APP_OSPI_DATA_SIZE; i++)
    {
        status = FOTAAgent_writeUpdate(&fotaAgentHandle, &gOspiTxBuf[i], 1);
        DebugP_assert(status == SystemP_SUCCESS);
    }

Write End API

    status += FOTAAgent_writeEnd(&fotaAgentHandle);
    DebugP_assert(status==SystemP_SUCCESS);

API

APIs for FOTA Agent