johannes/Rennbahn
1
0
Fork 0
Code Issues Pull Requests Actions Packages Projects Releases Wiki Activity

comments to reading and buffering of HW-version 3

Browse Source
This commit is contained in:
Johannes Paehr
2018-11-23 09:50:23 +01:00
parent 6b0554d6ac
commit 551e6bbede
1 changed files with 7 additions and 7 deletions
Download Patch File Download Diff File Expand all files Collapse all files

14
hardwaresetup.cpp
View File

@@ -302,6 +302,7 @@ void HardwareSetup::run() {
} }
} // end HARDWARE_VERSION 2 } // end HARDWARE_VERSION 2
else if (HARDWARE_VERSION == 3) { else if (HARDWARE_VERSION == 3) {
fd = open(PORT_PATH, O_RDONLY); fd = open(PORT_PATH, O_RDONLY);
while (this->fd < 0) { while (this->fd < 0) {
// wait 1 second // wait 1 second
@@ -310,25 +311,24 @@ void HardwareSetup::run() {
fd = open(PORT_PATH, O_RDONLY); fd = open(PORT_PATH, O_RDONLY);
} }
cout << "Port opened" << endl; cout << "Port opened" << endl;
// port opened
// prepare buffer // prepare buffer
struct TransStruct * received; struct TransStruct * received;
uint8_t uintBuf[4 * 6]; uint8_t uintBuf[4 * 6];
void * voidBuf; void * voidBuf;
// flush existing data // configure among others non-canonical mode (important)
struct termios config; struct termios config;
tcgetattr(fd, &config); tcgetattr(fd, &config);
config.c_lflag = 0; // standard value is bad choosen config.c_lflag = 0; // standard value is bad choosen
tcsetattr(fd, TCSANOW, &config); tcsetattr(fd, TCSANOW, &config);
cout << "alles io" << endl;
ssize_t length = read(fd, uintBuf, 24);
if (length < 24) {
// read raw data to buffer
ssize_t length = read(fd, uintBuf, 24);
// flush existing data
if (length < 24) {
tcflush(fd, TCIFLUSH); tcflush(fd, TCIFLUSH);
// length = read(fd, uintBuf, 24);
} }
while (!this->stop) { while (!this->stop) {