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fixed the 9m master server having to be rebooted for hv to work

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This commit is contained in:
Dhanya Maliakal
2017-06-22 14:32:24 +02:00
parent fe73e09aa4
commit f66950d312
4 changed files with 26 additions and 16 deletions
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22
slsDetectorSoftware/eigerDetectorServer/FebControl.c
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@ -13,6 +13,7 @@
#include <string.h>
#include <time.h>
#include <termios.h> // POSIX terminal control definitions(CS8, CREAD, CLOCAL..)
#include <errno.h>
#include "FebRegisterDefs.h"
#include "FebControl.h"
@ -225,31 +226,35 @@ int Feb_Control_Init(int master, int top, int normal, int module_num){
int Feb_Control_OpenSerialCommunication(){
cprintf(BG_BLUE,"opening serial communication of hv\n");
if(Feb_Control_hv_fd != -1)
//if(Feb_Control_hv_fd != -1)
close(Feb_Control_hv_fd);
Feb_Control_hv_fd = open(SPECIAL9M_HIGHVOLTAGE_PORT, O_RDWR | O_NOCTTY);
Feb_Control_hv_fd = open(SPECIAL9M_HIGHVOLTAGE_PORT, O_RDWR | O_NOCTTY | O_SYNC);
if(Feb_Control_hv_fd < 0){
cprintf(RED,"Warning: Unable to open port %s to set up high voltage serial communciation to the blackfin\n", SPECIAL9M_HIGHVOLTAGE_PORT);
return 0;
}
struct termios serial_conf;
// Get the current options for the port
tcgetattr(Feb_Control_hv_fd, &serial_conf);
// reset structure
memset(&serial_conf,0,sizeof(serial_conf));
memset (&serial_conf, 0, sizeof(serial_conf));
// control options
serial_conf.c_cflag = B2400 | CS8 | CREAD | CLOCAL;//57600 too high
// input options
serial_conf.c_iflag = IGNPAR;
serial_conf.c_iflag = 0;//IGNPAR; (stuck because it was in ignore parity)
// output options
serial_conf.c_oflag = 0;
// line options
serial_conf.c_lflag = ICANON;
// flush input
tcflush(Feb_Control_hv_fd, TCIFLUSH);
if(tcflush(Feb_Control_hv_fd, TCIFLUSH) < 0){
cprintf(RED,"Warning: error form tcflush %d\n", errno);
return 0;
}
// set new options for the port, TCSANOW:changes occur immediately without waiting for data to complete
tcsetattr(Feb_Control_hv_fd, TCSANOW, &serial_conf);
if(tcsetattr(Feb_Control_hv_fd, TCSANOW, &serial_conf) < 0){
cprintf(RED,"Warning: error form tcsetattr %d\n", errno);
return 0;
}
return 1;
}
@ -605,6 +610,7 @@ int Feb_Control_SendHighVoltage(int dacvalue){
}
char buffer[SPECIAL9M_HIGHVOLTAGE_BUFFERSIZE];
memset(buffer,0,SPECIAL9M_HIGHVOLTAGE_BUFFERSIZE);
buffer[SPECIAL9M_HIGHVOLTAGE_BUFFERSIZE-2]='\0';
buffer[SPECIAL9M_HIGHVOLTAGE_BUFFERSIZE-1]='\n';
int n;