YmodemPaquets.cpp File Reference

Ymodem Packet preparation functions. More...

#include "YmodemPaquets.h"

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Functions
void	Ymodem_PrepareIntialPacket (uint8_t *data, char *fileName, uint32_t length)
	Prepares the initial packet for Ymodem transmission.
void	Ymodem_PrepareLastPacket (uint8_t *data)
	Prepares the last packet for Ymodem transmission.
void	Ymodem_PreparePacket (uint8_t *data, uint8_t pktNo, uint32_t sizeBlk, fs::File &ffd)
	Prepares a Ymodem packet with the given data.
uint8_t	Ymodem_WaitResponse (uint8_t ackchr, uint8_t tmo)
	Waits for a specific response character within a given timeout period.

Detailed Description

Ymodem Packet preparation functions.

Author

Miguel Ferrer (mferr.nosp@m.er@i.nosp@m.nbiot.nosp@m..es)

Version

0.1

Date

2025-01-24

This file contains the functions to prepare the packets for Ymodem file transfer. It formats the packets with the necessary information for the Ymodem protocol.

Copyright

Copyright (c) 2025

Definition in file YmodemPaquets.cpp.

Function Documentation

Ymodem_PrepareIntialPacket()

void Ymodem_PrepareIntialPacket	(	uint8_t *	data,
		char *	fileName,
		uint32_t	length )

Prepares the initial packet for Ymodem transmission.

This function initializes the first packet to be sent in a Ymodem transfer. The initial packet contains metadata about the file being transferred, such as the file name and its length.

Parameters

data	Pointer to the buffer where the initial packet will be prepared.
fileName	Pointer to a null-terminated string containing the name of the file.
length	The length of the file in bytes.

Definition at line 16 of file YmodemPaquets.cpp.

Ymodem_PrepareLastPacket()

void Ymodem_PrepareLastPacket

(

uint8_t *

data

)

Prepares the last packet for Ymodem transmission.

This function is responsible for preparing the final packet to be sent during a Ymodem file transfer. It ensures that the last packet is properly formatted and ready for transmission.

Parameters

data	Pointer to the buffer where the last packet data will be stored.

Definition at line 40 of file YmodemPaquets.cpp.

Ymodem_PreparePacket()

void Ymodem_PreparePacket	(	uint8_t *	data,
		uint8_t	pktNo,
		uint32_t	sizeBlk,
		fs::File &	ffd )

Prepares a Ymodem packet with the given data.

Parameters

data	Pointer to the buffer where the packet will be prepared.
pktNo	Packet number to be included in the packet.
sizeBlk	Size of the block to be included in the packet.
ffd	Reference to the file from which data will be read.

Definition at line 54 of file YmodemPaquets.cpp.

Ymodem_WaitResponse()

uint8_t Ymodem_WaitResponse	(	uint8_t	ackchr,
		uint8_t	tmo )

Waits for a specific response character within a given timeout period.

This function waits for a response character (ackchr) to be received within a specified timeout period (tmo). It is typically used in communication protocols to ensure that the expected response is received before proceeding.

Parameters

ackchr	The expected response character to wait for.
tmo	The timeout period in milliseconds to wait for the response.

Returns

uint8_t Returns 1 if the expected response character is received within the timeout period, otherwise returns 0.

Definition at line 80 of file YmodemPaquets.cpp.