ICS-Microprocessor-2020/Display_Avr_3
5
0
Fork 0
Code Issues 6 Pull Requests Projects Releases Wiki Activity

hdlc-interface #6

Merged
stud126186 merged 15 commits from hdlc-interface into master 2023-06-26 08:00:17 +00:00
Conversation 0 Commits 15 Files Changed 10 +44 -27
2 changed files with 44 additions and 27 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files
Showing only changes of commit 8e4329c9d3 - Show all commits

66
hdlc/client.c
View File

@ -2,7 +2,6 @@
#include <stdio.h>
#include <fcntl.h>
#include <unistd.h>
void init_Client(Client* client, bool test_is_valid, uint8_t address, void* serial_port) {
client->TEST_IS_VALID = test_is_valid;
@ -22,24 +21,21 @@ void connect(Client* client) {
create_frame(&u_frame.base, result);
void* serial_port = client->serial_port;
// Write result to serial port to establish connection
// ...
sendSerialData(serial_port, u_frame.base.data, u_frame.base.data_length);
// Wait for acknowledgment frame
// Read bytes from serial port
// ...
bool flag = true;
uint8_t data[u_frame.base.data_length];
while(flag){
int bytes_received = receiveSerialData(serial_port, data, 256);
if (bytes_received > 0){
flag = false;
}
}
uint8_t received[256]; // Example buffer size, adjust as needed
size_t received_length = 0;
// Process received bytes
// ...
// Validate acknowledgment frame
HDLCFrame frame;
init_HDLCFrame(&frame, 0, 0, received + 3, received_length - 6);
if (validate(client, &frame, received, received_length)) {
// Connection established
init_HDLCFrame(&frame, 0, 0, data + 3, 256 - 6);
if (validate(client, &frame, data, 256)) {
return;
} else {
// Connection failed
}
@ -54,19 +50,20 @@ void send(Client* client, uint8_t* data, size_t data_length) {
uint8_t result[256];
create_frame(&i_frame.base, result);
void* serial_port = client->serial_port;
sendSerialData(client->serial_port, &i_frame.base.data, i_frame.base.data_length);
sendSerialData(client->serial_port, i_frame.base.data, i_frame.base.data_length);
client->_send_sequence_number++;
}
void receive_data(Client* client) {
void receive_data(Client* client, uint8_t* recivedData, int lenRecived) {
void* serial_port = client->serial_port;
// Read data from serial port
// ...
// Process received data
// ...
bool flag = true;
while(flag){
int bytes_received = receiveSerialData(serial_port, recivedData, lenRecived);
if (bytes_received > 0){
flag = false;
}
}
}
bool validate(Client* client, HDLCFrame* frame, uint8_t* received_data, size_t received_length) {
@ -93,7 +90,7 @@ bool validate(Client* client, HDLCFrame* frame, uint8_t* received_data, size_t r
return false;
}
int sendSerialData(const char* port, const char* data, size_t length) {
int sendSerialData(const char* port, uint8_t* data, size_t length) {
int serial_port = open(port, O_RDWR); // Replace "port" with your serial port device
if (serial_port < 0) {
@ -110,4 +107,23 @@ int sendSerialData(const char* port, const char* data, size_t length) {
close(serial_port);
return bytes_written;
}
int receiveSerialData(const char* port, uint8_t* data, int length) {
int serial_port = open(port, O_RDWR); // Replace "port" with your serial port device
if (serial_port < 0) {
perror("Error opening the serial port");
return -1;
}
ssize_t bytes_read = read(serial_port, data, length);
if (bytes_read < 0) {
perror("Error reading from the serial port");
return -1;
}
close(serial_port);
return bytes_read;
}

5
hdlc/client.h
View File

@ -22,8 +22,9 @@ typedef struct {
void init_Client(Client* client, bool test_is_valid, uint8_t address, void* serial_port);
void connect(Client* client);
void send(Client* client, uint8_t* data, size_t data_length);
void receive_data(Client* client);
void receive_data(Client* client, uint8_t* recivedData, int lenRecived);
bool validate(Client* client, HDLCFrame* frame, uint8_t* received_data, size_t received_length);
int sendSerialData(const char* port, const char* data, size_t length);
int sendSerialData(const char* port, uint8_t* data, size_t length);
int receiveSerialData(const char* port, uint8_t* data, int length);
#endif