usartexception revised
This commit is contained in:
Tristan Krause
parent
b4ac345875
commit
ab82f2f90e
200 changed files with 14602 additions and 160 deletions
123
control/src/.idea/workspace.xml
generated
123
control/src/.idea/workspace.xml
generated
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@ -12,9 +12,9 @@
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<change beforePath="$PROJECT_DIR$/drv/usart.h" beforeDir="false" afterPath="$PROJECT_DIR$/drv/usart.h" afterDir="false" />
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@ -26,7 +26,6 @@
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@ -41,26 +40,47 @@
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@ -68,7 +88,7 @@
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@ -96,8 +116,10 @@
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<option value="$PROJECT_DIR$/drv/usart.h" />
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<option value="$PROJECT_DIR$/drv/usart.cpp" />
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@ -169,12 +202,12 @@
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<state relative-caret-position="58">
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<caret line="4" column="17" selection-start-line="4" selection-start-column="17" selection-end-line="4" selection-end-column="17" />
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52
control/src/drv/backup.cpp
Normal file
52
control/src/drv/backup.cpp
Normal file
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@ -0,0 +1,52 @@
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|||
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||||
void USART::writeByte(uint8_t b)
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{
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int sent = write(file_desc, &b, 1);
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if (sent != 1)
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{
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std::cout << "WARNUNG: Fehler beim Senden (" << sent << "): writeByte(), wiederhole..." << std::endl;
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usleep(100000);
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sent = write(file_desc, &b, 1);
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if (sent != 1)
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throw USARTException("Fehler beim Senden: writeByte()");
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||||
}
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||||
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||||
}
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void USART::writeInt(uint16_t d)
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{
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int sent = write(file_desc, reinterpret_cast<char *>(&d), 2);
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if (sent != 2)
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throw USARTException("Fehler beim Senden: writeInt()");
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||||
}
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void USART::writeU32(uint32_t w)
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{
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int sent = write(file_desc, reinterpret_cast<char *>(&w), 4);
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if (sent != 4)
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throw USARTException("Fehler beim Senden: writeU32()");
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}
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uint8_t USART::readByte(void)
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{
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char b;
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auto start = std::chrono::steady_clock::now();
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auto end = start;
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uint16_t elapsed = 0;
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while (elapsed < timeout * 100)
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{
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int code = read(file_desc, &b, 1);
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if (code > 0)
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return static_cast<uint8_t>(b);
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end = std::chrono::steady_clock::now();
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elapsed = std::chrono::duration_cast<std::chrono::milliseconds>(end - start).count();
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}
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throw TimeoutException("Verbindung unterbrochen.", timeout);
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}
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uint16_t USART::readInt(void)
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{
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return readByte() | readByte() << 8;
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}
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@ -1,10 +1,12 @@
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#include "usart.h"
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USART::~USART() {
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USART::~USART()
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{
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closeDevice();
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}
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void USART::openDevice(std::string device) {
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void USART::openDevice(std::string device)
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{
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// Benutze blockierenden Modus
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file_desc = open(device.c_str(), O_RDWR | O_NOCTTY | O_NDELAY);
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if (file_desc <= 0)
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||||
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@ -33,8 +35,10 @@ void USART::openDevice(std::string device) {
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clearInputBuffer();
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}
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void USART::closeDevice() {
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if (file_desc > 0) {
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void USART::closeDevice()
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{
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||||
if (file_desc > 0)
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{
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int code = close(file_desc);
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if (code)
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throw USARTException("Fehler beim Schließen des Gerätes");
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@ -42,95 +46,59 @@ void USART::closeDevice() {
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}
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}
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void USART::clearInputBuffer() {
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void USART::clearInputBuffer()
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{
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||||
int code = tcflush(file_desc, TCIFLUSH);
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if (code)
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throw USARTException("Fehler beim Leeren des Eingangspuffers");
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}
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void USART::clearOutputBuffer() {
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void USART::clearOutputBuffer()
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||||
{
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||||
int code = tcflush(file_desc, TCOFLUSH);
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||||
if (code)
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throw USARTException("Fehler beim Leeren des Ausgangspuffers");
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||||
}
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||||
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void USART::flushOutputBuffer() {
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void USART::flushOutputBuffer()
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{
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int code = tcdrain(file_desc);
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if (code)
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throw USARTException("Fehler beim Versenden des Ausgangspuffers");
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}
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||||
void USART::writeByte(uint8_t b) {
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||||
int sent = write(file_desc, &b, 1);
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||||
if (sent != 1) {
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||||
std::cout << "WARNUNG: Fehler beim Senden (" << sent << "): writeByte(), wiederhole..." << std::endl;
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usleep(100000);
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sent = write(file_desc, &b, 1);
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if (sent != 1)
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throw USARTException("Fehler beim Senden: writeByte()");
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||||
}
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||||
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}
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void USART::writeInt(uint16_t d) {
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int sent = write(file_desc, reinterpret_cast<char *>(&d), 2);
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if (sent != 2)
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throw USARTException("Fehler beim Senden: writeInt()");
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}
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void USART::writeU32(uint32_t w) {
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int sent = write(file_desc, reinterpret_cast<char *>(&w), 4);
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if (sent != 4)
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||||
throw USARTException("Fehler beim Senden: writeU32()");
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||||
}
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||||
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||||
void USART::receive(uint8_t *buffer, uint16_t offset, uint8_t len) {
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void USART::receive(uint8_t *buffer, uint16_t offset, uint8_t len)
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||||
{
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int n = read(file_desc, buffer + offset, len);
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if (n != len)
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throw USARTException(
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std::string(__FUNCTION__) + " failed: " + std::string(__FILE__) + "#" + std::to_string(__LINE__));
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std::string(__FUNCTION__) + " failed: " + std::string(__FILE__) + "#" + std::to_string(__LINE__));
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}
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||||
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||||
void USART::transmit(uint8_t *buffer, uint16_t offset, uint8_t len) {
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void USART::transmit(uint8_t *buffer, uint16_t offset, uint8_t len)
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||||
{
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||||
int n = write(file_desc, buffer + offset, len);
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||||
if (n != len)
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||||
throw USARTException(
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std::string(__FUNCTION__) + " failed: " + std::string(__FILE__) + "#" + std::to_string(__LINE__));
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||||
std::string(__FUNCTION__) + " failed: " + std::string(__FILE__) + "#" + std::to_string(__LINE__));
|
||||
}
|
||||
|
||||
uint8_t USART::readByte(void) {
|
||||
char b;
|
||||
auto start = std::chrono::steady_clock::now();
|
||||
auto end = start;
|
||||
uint16_t elapsed = 0;
|
||||
while (elapsed < timeout * 100) {
|
||||
int code = read(file_desc, &b, 1);
|
||||
if (code > 0)
|
||||
return static_cast<uint8_t>(b);
|
||||
|
||||
end = std::chrono::steady_clock::now();
|
||||
elapsed = std::chrono::duration_cast<std::chrono::milliseconds>(end - start).count();
|
||||
}
|
||||
|
||||
throw TimeoutException("Verbindung unterbrochen.", timeout);
|
||||
}
|
||||
|
||||
uint16_t USART::readInt(void) {
|
||||
return readByte() | readByte() << 8;
|
||||
}
|
||||
|
||||
uint32_t USART::getBaudrate() {
|
||||
uint32_t USART::getBaudrate()
|
||||
{
|
||||
return baudrate;
|
||||
}
|
||||
|
||||
uint8_t USART::getTimeout() {
|
||||
uint8_t USART::getTimeout()
|
||||
{
|
||||
return timeout;
|
||||
}
|
||||
|
||||
void USART::setBaudrate(uint32_t baudrate) {
|
||||
void USART::setBaudrate(uint32_t baudrate)
|
||||
{
|
||||
this->baudrate = baudrate;
|
||||
}
|
||||
|
||||
void USART::setTimeout(uint8_t timeout) {
|
||||
void USART::setTimeout(uint8_t timeout)
|
||||
{
|
||||
this->timeout = timeout;
|
||||
}
|
||||
|
|
|
|||
|
|
@ -1,17 +1,12 @@
|
|||
#ifndef USART_H
|
||||
#define USART_H
|
||||
|
||||
#include <iostream>
|
||||
#include <cstdint>
|
||||
#include <chrono>
|
||||
#include <unistd.h>
|
||||
#include <cstring>
|
||||
#include <fcntl.h>
|
||||
#include <sys/ioctl.h>
|
||||
#include <unistd.h>
|
||||
#include <termios.h>
|
||||
#include <cmath>
|
||||
#include <sys/ioctl.h>
|
||||
#include "usartexception.h"
|
||||
#include "timeoutexception.h"
|
||||
|
||||
/*! C++ Wrapper class for termios usart library. */
|
||||
|
||||
|
|
@ -23,7 +18,15 @@ public:
|
|||
* Methoden für die Verwaltung der Schnittstelle *
|
||||
*************************************************/
|
||||
|
||||
~USART(void);
|
||||
/**
|
||||
* Standard-Konstruktor
|
||||
*/
|
||||
explicit USART() = default;
|
||||
|
||||
/**
|
||||
* Destructor, ruft automatisch closeDevice() auf
|
||||
*/
|
||||
virtual ~USART(void);
|
||||
|
||||
/**
|
||||
* Öffnet die USART Schnittstelle
|
||||
|
|
@ -64,43 +67,11 @@ public:
|
|||
* Methoden für die Datenübertragung *
|
||||
*************************************/
|
||||
|
||||
/**
|
||||
* Sendet ein Byte über die USART Schnittstelle
|
||||
* \param b das zu sendende Byte
|
||||
* \throws USARTException
|
||||
*/
|
||||
void writeByte(uint8_t b);
|
||||
|
||||
/**
|
||||
* Sendet ein Integer über die USART Schnittstelle
|
||||
* \param b das zu sendende Int
|
||||
* \throws USARTException
|
||||
*/
|
||||
void writeInt(uint16_t d);
|
||||
|
||||
/**
|
||||
* Sendet ein uint32_t über die USART Schnittstelle
|
||||
* \param b das zu sendende uint32_t
|
||||
* \throws USARTException
|
||||
*/
|
||||
void writeU32(uint32_t d);
|
||||
|
||||
/**
|
||||
* Empfängt ein Byte über die USART Schnittstelle
|
||||
* \throws USARTException
|
||||
*/
|
||||
uint8_t readByte(void);
|
||||
|
||||
/**
|
||||
* Empfängt ein Integer über die USART Schnittstelle
|
||||
* \throws USARTException
|
||||
*/
|
||||
uint16_t readInt(void);
|
||||
|
||||
/**
|
||||
* Sends n bytes from the buffer over USART
|
||||
* \param buffer target buffer
|
||||
* \param offset in buffer (mostly 0)
|
||||
* \param len count of bytes to send
|
||||
* \throws USARTException
|
||||
*/
|
||||
void transmit(uint8_t *buffer, uint16_t offset, uint8_t len);
|
||||
|
|
@ -109,6 +80,7 @@ public:
|
|||
* Receives n bytes from USART and writes them into the buffer
|
||||
* \param buffer target buffer
|
||||
* \param offset in buffer (mostly 0)
|
||||
* \param len count of bytes to receive
|
||||
* \throws USARTException
|
||||
*/
|
||||
void receive(uint8_t *buffer, uint16_t offset, uint8_t len);
|
||||
|
|
@ -135,33 +107,23 @@ public:
|
|||
|
||||
/**
|
||||
* Setzt die Baudrate
|
||||
* <b>Änderungen werden erst nach einem open() wirksam</b>
|
||||
* <b>Änderungen werden erst nach openDevice() wirksam</b>
|
||||
*/
|
||||
void setBaudrate(uint32_t baudrate);
|
||||
|
||||
/**
|
||||
* Setzt den Timeout (in Dezisekunden)
|
||||
* <b>Änderungen werden erst nach einem open() wirksam</b>
|
||||
* <b>Änderungen werden erst nach openDevice() wirksam</b>
|
||||
*/
|
||||
void setTimeout(uint8_t timeout);
|
||||
|
||||
/***************************************/
|
||||
|
||||
constexpr static uint8_t CRC7_POLY = 0x91;
|
||||
constexpr static uint8_t MAX_BLOCK_SIZE = 64;
|
||||
constexpr static uint8_t BLOCK_END = 0x80;
|
||||
private:
|
||||
|
||||
int file_desc = -1; // Linux Dateideskriptor
|
||||
uint32_t baudrate = 9600; // Standard-Baudrate, sollte mit setBaudrate() überschrieben werden!
|
||||
int TEST = 0;
|
||||
uint8_t timeout = 10; // in Dezisekunden
|
||||
uint8_t block_buffer[MAX_BLOCK_SIZE + 3];
|
||||
|
||||
// debug statistics
|
||||
uint32_t n_blocks_total = 0;
|
||||
uint32_t n_blocks_failed = 0;
|
||||
int file_desc = -1; //!< Linux Dateideskriptor
|
||||
uint32_t baudrate = 9600; //!< Standard-Baudrate, sollte mit setBaudrate() überschrieben werden!
|
||||
uint8_t timeout = 10; //!< in Dezisekunden
|
||||
};
|
||||
|
||||
|
||||
#endif // USART_H
|
||||
|
|
|
|||
|
|
@ -4,32 +4,43 @@
|
|||
#include <exception>
|
||||
#include <string>
|
||||
|
||||
// SOURCE: https://stackoverflow.com/a/8152888
|
||||
|
||||
/*! Exception for USART problems, for instance buffer overflow. */
|
||||
|
||||
class USARTException: public std::exception
|
||||
{
|
||||
public:
|
||||
/**
|
||||
* Constructor
|
||||
* @param message as c-string
|
||||
*/
|
||||
explicit USARTException(const char* message) : msg(message)
|
||||
{
|
||||
}
|
||||
|
||||
/**
|
||||
* Constructor
|
||||
* @param message as c++-string
|
||||
*/
|
||||
explicit USARTException(const std::string& message) : msg(message)
|
||||
{
|
||||
}
|
||||
|
||||
virtual ~USARTException() throw ()
|
||||
{
|
||||
}
|
||||
/**
|
||||
* Standard-destructor
|
||||
*/
|
||||
virtual ~USARTException() = default;
|
||||
|
||||
/**
|
||||
* Get failure description
|
||||
* @return error message as c-string
|
||||
*/
|
||||
virtual const char* what() const throw ()
|
||||
{
|
||||
return msg.c_str();
|
||||
}
|
||||
|
||||
protected:
|
||||
std::string msg;
|
||||
std::string msg; //!< failure description
|
||||
};
|
||||
|
||||
#endif // USARTEXCEPTION_H
|
||||
|
|
|
|||
Loading…
Add table
Add a link
Reference in a new issue