FOTA Agent

Table of Contents

• Features Supported
• Features NOT 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 4KB chunks
• Only ELF image format supported
• Both XIP and Non-XIP files

Features NOT Supported

• RPRC image format

Example Usage

Include the below file to access the APIs

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

Init API

int32_t init_FOTAAgent(void)
{
    /* Initialize Fota Agent Driver*/
    int32_t status;
    status = FOTAAgent_init(&fotaAgentHandle);
 
    return status;
}

Write Start API

    FOTAAgent_writeStart(&fotaAgentHandle,flashBaseOffset,offset,isXip);

Write Update API

    for(int i=0;i<totalChunks;i++)
    {
        status += FOTAAgent_writeUpdate(&fotaAgentHandle,gOspiTxBuf + i*WRITE_CHUNK_SIZE,WRITE_CHUNK_SIZE);
        DebugP_assert(status==SystemP_SUCCESS);
    }    

Write End API

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

API

APIs for FOTA Agent