srecParser.c File Reference

Implementation of real time srec parser.

Copyright (c) 2020 Microchip Technology Inc. and its subsidiaries.

#include <types.h>
#include <abstractSerializer.h>
#include <bootStructure.h>
#include <flashLoader.h>
#include <eepromLoader.h>
#include "asf.h"
#include "uartSerializer.h"
#include <appEntry.h>
#include "app_info.h"

Macros
#define	EEPROM_PAGE_SIZE   256u

Functions
void	jumpToApplication (void)
void	srecHandshake (void)
	Handshake procedure. More...
static bool	srecParser (void)
	Real time parser of srec format. More...
void	srecProtocol (void)
	Communication support between host and mcu. More...
static uint8_t	srecWaitForAddress (uint8_t addressLength)
	Waiting for a field of the type from the internal address. More...
static void	srecWaitForType (SrecordType_t *srecType)
	Waiting for a field of the type from the serial interface. More...

Variables
app_info_t	checkapp_info
BootBuffer_t	dataBuffer
static uint32_t	handshakeConf = HANDSHAKE_CONF
static uint32_t	previousAddress = 0xFFFFFFFF
static uint32_t	srecACK = ACK
static uint32_t	srecNACK = NACK

#define EEPROM_PAGE_SIZE   256u

void jumpToApplication

(

void

)

References app_table_tag::app_start_addr, app_info_t::appTable, CLEAR_EIND, flag, and isCrcMatched.

Referenced by Boot_main().

void srecHandshake

(

void

)

Handshake procedure.

References bootScanInterfaces(), bootSetChar(), bootUnInitSerializer(), flag, handshakeConf, lowLevelUnInit(), RESET_FLAG, and system_reset().

Referenced by Boot_main().

static bool srecParser ( void  )

static

Real time parser of srec format.

Returns

false - parse error true - parse ok

References bootGetChar(), CHECKSUM_AREA_SIZE, BootBuffer_t::data, BootBuffer_t::dataSize, INFINITE, BootBuffer_t::recordType, S0, S1, S19, S2, S3, S5, S7, S9, SREC_DATA_LENGTH, srecWaitForAddress(), and srecWaitForType().

Referenced by srecProtocol().

void srecProtocol

(

void

)

Communication support between host and mcu.

References BootBuffer_t::address, bootSetChar(), bootUnInitSerializer(), BootBuffer_t::dataSize, eepromFlushPage(), eepromPacketToPage(), flag, flashFlushPage(), flashPacketToPage(), i, lowLevelUnInit(), nvm_erase_row(), previousAddress, BootBuffer_t::recordType, RESET_FLAG, S0, S19, S5, S7, S9, srecACK, srecNACK, srecParser(), and system_reset().

Referenced by Boot_main().

static uint8_t srecWaitForAddress ( uint8_t  addressLength )

static

Waiting for a field of the type from the internal address.

Parameters

[in]

addressLength

- length of address field;

Returns

checksum with address field

References BootBuffer_t::address, bootGetChar(), and INFINITE.

Referenced by srecParser().

static void srecWaitForType ( SrecordType_t *  srecType )

static

Waiting for a field of the type from the serial interface.

Parameters

[out]

srecType

- pointer to buffer;

References bootGetChar(), INFINITE, and S_SYMBOL.

Referenced by srecParser().

app_info_t checkapp_info

BootBuffer_t dataBuffer

uint32_t handshakeConf = HANDSHAKE_CONF

static

Referenced by srecHandshake().

uint32_t previousAddress = 0xFFFFFFFF

static

Referenced by srecProtocol().

uint32_t srecACK = ACK

static

Referenced by srecProtocol().

uint32_t srecNACK = NACK

static

Referenced by srecProtocol().