--- /dev/null
+old
+ut70d
+
--- /dev/null
+ GNU GENERAL PUBLIC LICENSE
+ Version 2, June 1991
+
+ Copyright (C) 1989, 1991 Free Software Foundation, Inc.,
+ 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
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+
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+ Gnomovision version 69, Copyright (C) year name of author
+ Gnomovision comes with ABSOLUTELY NO WARRANTY; for details type `show w'.
+ This is free software, and you are welcome to redistribute it
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+ `Gnomovision' (which makes passes at compilers) written by James Hacker.
+
+ <signature of Ty Coon>, 1 April 1989
+ Ty Coon, President of Vice
+
+This General Public License does not permit incorporating your program into
+proprietary programs. If your program is a subroutine library, you may
+consider it more useful to permit linking proprietary applications with the
+library. If this is what you want to do, use the GNU Lesser General
+Public License instead of this License.
--- /dev/null
+all: ut70d
+
+ut70d: ut70d.c
+ cc -Wall ut70d.c -o ut70d -g
+
+
+clean:
+ rm -f ut70d
+ rm -f *~
--- /dev/null
+Documentation for ut70d multimeter communication protocol.
+
+Copyright (c) 2010 Peter Popovec
+
+This program is free software; you can redistribute it and/or
+modify it under the terms of the GNU General Public License
+as published by the Free Software Foundation; either version 2
+of the License, or (at your option) any later version.
+
+This program is distributed in the hope that it will be useful,
+but WITHOUT ANY WARRANTY; without even the implied warranty of
+MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+GNU General Public License for more details.
+
+You should have received a copy of the GNU General Public License
+along with this program; if not, write to the Free Software
+Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301,
+USA.
+
+
+
+Cable pins:
+
+ RS232 name
+1 NC Carier detect
+2 green RX
+3 white TX
+4,6 orange DTR(4),DSR(6)
+5 yelow GND
+7,8 blue RTS(7),CTS(8)
+9 NC Ring indikator
+
+
+IR head
+
+on head IR transmitter and IR receiver can be found. Cable get out from
+head on side of IR receiver
+
+
+
+Communication:
+
+Send one byte 0-127, get echo of this value
+
+For value 128 to 150 response paket can be received:
+
+Paket format:
+0 = echo from command
+1 = mode (rotary switch position+subfunction by yellow button)
+2,3,4 bit mapped fields, see bellow,
+
+n-2 checksum
+n-1 0xa0 - end of paket
+
+
+checksum calculation, because UNI-t doc is very difficult to read. (what
+is bit 8 in Uni-T doc ? ).
+
+Based on experiments and Uni-T doc following algorhithm can be used to
+check paket:
+
+1. X=0
+2. X = X XOR byte[Y] iterate Y from 0 to n-3
+3. X[bit4] = X[bit4] xor X[bit6]
+4. X[bit5] = X[bit5] xor X[bit7]
+5. clear X[bit6],X[bit7]
+6. X -= byte[n-2]
+7. X += 0x22
+8. X==0 ? paket ok.
+
+
+byt 1 MODE
+-----
+F8 1111 1000 V~
+F0 1111 0000 V=
+E8 1110 1000 mV
+E0 1110 0000 R/C
+E1 1110 0001 F
+D8 1101 1000 Dio
+A8 1010 1000 A=
+A9 1010 1001 A~
+B0 1011 0000 mA=
+B1 1011 0001 mA~
+
+byt 2 RANGE and UNITS
+-----
+bit 7 always 1 ?
+bit 6 manual/auto
+bit 5,4,3 range ..
+bit 2,1,0
+ 0 = F-capacitance, 1=? 2= V,A,OHM 3 =?
+ 4 = Hz frequency, 5 = % 6= ? 7 = ?
+
+
+byt 3
+-----
+7 always 1 ?
+6 "REC"
+5 always 0 ?
+4,3 00 - none 01 MAX 10 MIN 11 AVG
+2 1=beeper on
+1 always 0 ?
+0 always 0 ?
+
+
+byt4 binary maped:
+----
+7 always 1 ?
+6 always 0 ?
+5 1 = low bat
+4 1 = + 0 = -
+3 1 = overflow (0L on display)
+2 1 = Hz 0 = no Hz
+1 always 0 ?
+0 1 = hold 0 = sample
+
+
+
+Example response pakets:
+
+
+
+128 reply paket len 11 ADC readimg SUM1 in FS970X *Direct reading sum1
+80 F0 82 80 80 80 A0 8E 90 5E 0A
+129 reply paket len 11
+81 F0 82 80 80 80 A1 B8 80 3C 0A
+130 reply paket len 11 ADC readimg SUM2 in FS970X *direct reading sum2
+82 F0 82 80 80 80 A2 88 80 4C 0A
+131 reply paket len 11
+83 F0 82 80 80 85 B7 BE 80 2F 0A
+132 reply paket len 11 *positive peak
+84 F0 82 80 80 8A B7 BE 80 27 0A
+133 reply paket len 11
+85 F0 82 80 80 A0 87 B4 80 36 0A
+134 reply paket len 11 *negative peak
+86 F0 82 80 80 A0 87 B4 80 39 0A
+
+135 reply paket len 15
+87 F0 82 80 80 80 80 80 80 80 80 80 80 27 0A *UNI-T doc ktb and ksg (check FS900X doc)
+136 reply paket len 15
+88 F0 82 80 80 80 80 80 80 80 80 80 80 2C 0A
+
+137 reply paket len 12
+89 F0 82 80 80 3F 30 33 32 33 58 0A *curent displey read
+
+138 reply paket len 8
+8A F0 82 80 80 81 4B 0A <<bargraph read (value 81, byte 5, 80=0 A8=40=max)
+
+139 reply paket len 12
+8B F0 82 80 80 3E 36 3B 33 35 5E 0A *dual display read
+140 reply paket len 12
+8C F0 82 80 80 3F 30 33 32 33 55 0A
+141 reply paket len 12
+8D F0 82 80 80 3F 30 33 32 33 54 0A
+142 reply paket len 12
+8E F0 82 80 80 3F 30 33 32 33 53 0A
+143 reply paket len 12
+8F F0 82 80 80 3F 30 33 32 33 52 0A
+144 reply paket len 12
+90 F0 82 80 80 3F 30 33 32 33 51 0A
+145 reply paket len 12
+91 F0 82 80 80 3F 30 33 32 33 50 0A
+146 reply paket len 12
+92 F0 82 80 80 3F 30 33 32 33 4F 0A
+147 reply paket len 12
+93 F0 82 80 80 3F 30 33 32 33 4E 0A
+148 reply paket len 12
+94 F0 82 80 80 3F 30 33 32 33 4D 0A
+
+149 reply paket len 7
+95 F0 82 80 80 39 0A
+
+150 reply paket len 12
+96 F0 82 80 80 3F 30 33 32 33 4B 0A
+
+
+Summary: 5 paket types can be received:
+
+128 to 134 11 byte response
+
+135,136 15 byte response - unkown data
+
+137,139-148,150 12 byte response
+
+138 8 byte response
+ bargraph read (byte 5 values 80-A8 = 0-40),
+ on real bargraph for value 0 firs position is active, for value 1 two
+ bargraph "positions" is signalized etc .. for 40 all 41 bargaph positions
+ is signalized
+
+149 7 byte response
+
+
+
+
+151 to 159: only echo can be received
+
+160 echo can be received, switch "autorange" on
+161 echo can be received, multimeter "RANGE" button
+162 echo can be received, unknown fcion (*UNI-T doc: Hz button .. but this not work)
+163 echo can be received, multimeter "Hz" button
+164 echo can be received, unknown fcion (*UNI-T doc: Hold button .. but this not work)
+165 echo can be received, multimeter "Hold" button
+166 echo can be received, unknown fcion (*UNI-T doc: REL button .. but this not work)
+167 echo can be received, multimeter "REL" button
+168 echo can be received, disable "MAX/MIN"
+169 echo can be received, multimeter "MAX MIN" button
+170 ?? (*UNI-T doc: Peak key, untested)
+171 beep on (untested) (*UNI-T doc: Peak key, untested)
+172 ?? (*UNI-T doc: Select key, untested)
+173 AC-DC-Cap (untested) (*UNI-T doc: Select key, untested)
+
+174..207 echo only
+208,209 (UNI-T doc Read and write EEPROM - untested)
+
+210-255 only echo
+
+---------------------------------------------------------------------------------
+
+
+Send 0x89, get 12 byt response:
+
+byt 0 (0x89)
+
+
+byt 5,6,7,8,9 - display characters
+-------------
+byt 10 - checksum
+------
+byt 11
+------
+Always 0x0a ??
+
+
+Send 0x8A
+get 8 byt reponse
+
+
+Send 0x9B
+ 12 byt response
+
+
+
+
+range range unit display multiply to ohm
+800 ohm 0 2 xxx.x *1
+8 kohm 1 2 x.xxx *1000
+80 kohm 2 2 xx.xx *1000
+800 kohm 3 2 xxx.x *1000
+8mohm 4 2 x.xxx *1000000
+80mohm 5 2 xx.xx *1000000
+
+800 nS 6 2 xx.xx
+
+Warning, on range switch from 800ohm to 8kohm, some wrong display
+data can be sampled. Example pakets:
+
+R Manual 0 2 _ _ _ _ SAMPLE _ +<3 0 > <3 0> 810.3
+[89 E0 C2 80 80 3F 38 31 30 33 60 0A]
+R Manual 0 2 _ _ _ _ SAMPLE _ +<3 0 > <3 0> 810.3
+[89 E0 CA 80 80 3F 38 31 30 33 58 0A]
+R Manual 1 2 _ _ _ _ SAMPLE _ +<3 1 > <3 1> 8.103 << wrong !!!
+[89 E0 CA 80 80 3F 38 31 30 33 58 0A]
+R Manual 1 2 _ _ _ _ SAMPLE _ +<3 1 > <3 1> 8.103 << wrong !!!
+[89 E0 CA 80 80 3F 30 38 31 31 56 0A]
+R Manual 1 2 _ _ _ _ SAMPLE _ +<3 1 > <3 1> 0.811
+[89 E0 CA 80 80 3F 30 38 31 31 56 0A]
+R Manual 1 2 _ _ _ _ SAMPLE _ +<3 1 > <3 1> 0.811
+
+To get "stable" output for computer, some workaround is needed. This is
+like "range" bits is changed before display output is changet. This is
+also true for multimeter display, but this can be ignored due display
+"blank". This blank is not signalled in data communication ?
+
+
+
+
+ multiply to pf
+8 nF 0 0 x.xxx *1000
+80 nF 1 0 xx.xx *1000
+800 nF 2 0 xxx.x *1000
+8 uF 3 0 x.xxx *1000000
+80 uF 4 0 xx.xx *1000000
+800 uF 5 0 xxx.x *1000000
+
+
--- /dev/null
+/* ut70d multimeter communication software
+
+Copyright (c) 2010 Peter Popovec <popovec@fei.tuke.sk>
+
+This program is free software; you can redistribute it and/or
+modify it under the terms of the GNU General Public License
+as published by the Free Software Foundation; either version 2
+of the License, or (at your option) any later version.
+
+This program is distributed in the hope that it will be useful,
+but WITHOUT ANY WARRANTY; without even the implied warranty of
+MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+GNU General Public License for more details.
+
+You should have received a copy of the GNU General Public License
+along with this program; if not, write to the Free Software
+Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301,
+USA.
+
+*/
+
+
+
+/*
+DEBUG switches
+-r raw mode, send command (default command=137) to device and print raw output
+-c<num> send command <num> to device, implies raw. If no argument, command "0" is send
+-i if set, parse paket and print internals, imples raw
+
+
+
+
+*/
+
+#include <stdio.h>
+#include <termios.h>
+#include <unistd.h>
+#include <sys/file.h>
+#include <sys/ioctl.h>
+#include <stdlib.h>
+#include <string.h>
+
+static void bits (int b);
+static int dumpdata (unsigned char *data, int len, FILE * fd);
+static int checksum (unsigned char *d, int len);
+static void parserawdata (unsigned char *d, int len);
+static void printxvalue (unsigned char *d, int len, int dot);
+static void printsvalue (unsigned char *d, int len);
+static void printmode (unsigned char *buf, int len);
+static int initserial (char *n);
+static void restoreserial (int fd);
+struct termios ts; // save to restore old parameters (or move to initserial if not needed)
+
+int F8_range[] = { 3, 1, 2, 3, 4, 0, 0, 0 };
+int F0_range[] = { 1, 2, 3, 4, 0, 0, 0, 0 };
+int E8_range[] = { 2, 3, 0, 0, 0, 0, 0, 0 };
+int E0_range[] = { 3, 1, 2, 3, 1, 2, 2, 0 }; //last active range is nS on 5 digit display (800nS)
+int E1_range[] = { 1, 2, 3, 1, 2, 3, 0, 0 };
+int D8_range[] = { 1, 0, 0, 0, 0, 0, 0, 0 };
+int A8_range[] = { 1, 2, 0, 0, 0, 0, 0, 0 };
+int A9_range[] = { 1, 2, 0, 0, 0, 0, 0, 0 };
+int B0_range[] = { 2, 3, 0, 0, 0, 0, 0, 0 };
+int B1_range[] = { 2, 3, 0, 0, 0, 0, 0, 0 };
+int FAIL_range[] = { 0, 0, 0, 0, 0, 0, 0, 0 };
+int Hz_range[] = { 2, 3, 1, 2, 3, 1, 2, 3 };
+int PR_range[] = { 0, 2, 0, 0, 0, 0, 0, 0 };
+
+int *base_range; // value * 10^base_range
+int sub_range; //
+
+int
+eeprom (int fd)
+{
+ int i;
+ unsigned char buf[32];
+ int len;
+
+ for (i = 0; i < 1; i++)
+ {
+ buf[0] = 0xd0;
+
+ buf[1] = ((i/16) & 0x0f) | 0x40;
+ buf[2] = (i & 0x0f) | 0x40;
+ buf[3] = 0x0a;
+
+ //debug
+ buf[1]=0x40;
+ buf[2]=0x40;
+ write (fd, buf, 4);
+ usleep (100000);
+ if ((len = read (fd, buf, 15)) > 0)
+ dumpdata (buf, len, stdout);
+ else
+ fprintf (stderr, "No response\n");
+ usleep(100000);
+ }
+ return 0;
+}
+
+
+int
+main (int argc, char **argv)
+{
+ int fd, opt;
+ unsigned char buf[15];
+ unsigned char lastbuf[15];
+
+ int raw = 0;
+ unsigned char cmd = 137;
+
+ while ((opt = getopt (argc, argv, "irc:")) != -1)
+ {
+ switch (opt)
+ {
+ case ('i'):
+ raw |= 3;
+ break;
+ case ('r'):
+ raw |= 1;
+ break;
+ case ('c'):
+ raw |= 1;
+ cmd = (strtol (optarg, (char **) NULL, 10)) & 255;
+ break;
+ }
+ }
+ if (argc < 2)
+ {
+ fprintf (stderr, "Usage: %s <device>\n", argv[0]);
+ exit (1);
+ }
+ fd = initserial (argv[argc - 1]);
+ usleep (10000);
+
+ if (raw)
+ {
+ int len;
+ if ((cmd & 0xfe) == 0xd0)
+ {
+ return (eeprom (fd));
+ }
+ buf[0] = cmd;
+ write (fd, buf, 1);
+ usleep (90000);
+ if ((len = read (fd, buf, 15)) > 0)
+ {
+ dumpdata (buf, len, stdout);
+ if (raw & 2)
+ parserawdata (buf, len);
+ }
+ else
+ fprintf (stderr, "No response\n");
+
+ restoreserial (fd);
+ return (len <= 0);
+ }
+ return 0;
+}
+
+void
+bits (int b)
+{
+ int i;
+ for (i = 0; i < 8; i++)
+ {
+ putchar (b & 0x80 ? '1' : '0');
+ b *= 2;
+ }
+}
+
+
+int
+dumpdata (unsigned char *d, int len, FILE * fd)
+{
+ int i,ret=0;
+ unsigned char xor;
+
+ printf("dump: %d\n",len);
+ if (len == 1)
+ return 1;
+ if (len < 3){
+ fprintf (stderr, "DEBUG: paket too short (%d), ignoring\n",len);
+ ret++;
+ }
+ if (checksum (d, len))
+ {
+ fprintf (stderr, "DEBUG: bad checksum, ignoring paket\n");
+ ret++;
+ }
+
+ fprintf (fd, "[");
+ for (xor = i = 0; i < len; i++)
+ {
+ if (d[i] != 0x0a)
+ fprintf (fd, "%02X ", d[i]);
+ else
+ {
+ fprintf (fd, "0A");
+ break;
+ }
+ }
+ fprintf (fd, "]\n");
+ return ret;
+}
+
+int
+checksum (unsigned char *d, int len)
+{
+ int i;
+ unsigned char xor;
+ if (len < 3)
+ return 1;
+ for (xor = i = 0; i < len - 2; i++)
+ xor = xor ^ d[i];
+ xor = xor ^ ((xor & 0xc0) / 4);
+ xor &= 0x3f;
+ xor = xor - d[len - 2] + 0x22;
+ return xor;
+}
+
+void
+parserawdata (unsigned char *d, int len)
+{
+ int val;
+ if (len < 7)
+ return;
+ printmode (d, len);
+ printsvalue (d, len);
+ switch (d[0])
+ {
+ if (len != 11)
+ {
+ fprintf (stderr, "DEBUG: Wrong paket len=%d 11 wanted\n", len);
+ return;
+ }
+ case (128):
+ case (129):
+ case (130):
+ case (131):
+ case (132):
+ case (133):
+ case (134):
+ val = d[5] & 0x3f;
+ val *= 64;
+ val |= d[6] & 0x3f;
+ val *= 64;
+ val |= d[7] & 0x3f;
+ val *= 64;
+ val |= d[8] & 0x3f;
+// if (d[5] & 20)
+// val = -((~val) & 0xffffff);
+ printf ("%d <%d>", val, val / 4096);
+ break;
+ //unknown data
+ case (135):
+ case (136):
+ if (len != 15)
+ {
+ fprintf (stderr, "DEBUG: Wrong paket len=%d 15 wanted\n", len);
+ return;
+ }
+
+ printf (" {%02X%02X%02X%02X%02X%02X%02X%02X}", d[5], d[6], d[7], d[8],
+ d[9], d[10], d[11], d[12]);
+ break;
+ //bargraph
+ case (138):
+ if (len != 8)
+ {
+ fprintf (stderr, "DEBUG: Wrong paket len=%d 8 wanted\n", len);
+ return;
+ }
+
+ printf ("%d", d[5] - 0x80);
+ break;
+//standard read, ADC value in 4/5 positions
+ case (137):
+ case (139):
+ case (140):
+ case (141):
+ case (142):
+ case (143):
+ case (144):
+ case (145):
+ case (146):
+ case (147):
+ case (148):
+ case (150):
+ if (len != 12)
+ {
+ fprintf (stderr, "DEBUG: Wrong paket len=%d 12 wanted\n", len);
+ return;
+ }
+ printxvalue (d, len, 0);
+ break;
+//read only settings
+ case (149):
+ if (len != 7)
+ {
+ fprintf (stderr, "DEBUG: Wrong paket len=%d 7 wanted\n", len);
+ return;
+ }
+ break;
+ }
+ printf ("\n");
+}
+
+void
+printsvalue (unsigned char *d, int len)
+{
+
+ //byte2
+ if (!(d[2] & 0x80))
+ {
+ fprintf (stderr, "DEBUG: bit 7 in byte[2] not 1: ");
+ dumpdata (d, len, stderr);
+ }
+ printf ("%s ", d[2] & 0x40 ? "Manual" : "AUTO");
+ printf ("range:%d Unit:%d ", (d[2] / 8) & 7, d[2] & 7);
+ sub_range = (d[2] / 8) & 7;
+ if ((d[2] & 7) == 4)
+ base_range = Hz_range;
+ if ((d[2] & 7) == 5)
+ base_range = PR_range;
+
+ //byte 3 bits 5,0,1 unknmown, always 0 ?
+ if ((d[3] & 0x23))
+ {
+ fprintf (stderr, "DEBUG: bits (1,5,6) not zero in byte[3]: ");
+ dumpdata (d, len, stderr);
+ }
+ if (!(d[3] & 0x80))
+ {
+ fprintf (stderr, "DEBUG: bit 7 in byte[3] not 1: ");
+ dumpdata (d, len, stderr);
+ }
+ printf ("%s %s ", d[3] & 4 ? "BEEP" : "_", d[3] & 0x40 ? "REC" : "_");
+ switch (d[3] & 0x18)
+ {
+ case 0:
+ printf ("_");
+ break;
+ case (0x08):
+ printf ("MAX");
+ break;
+ case (0x10):
+ printf ("MIN");
+ break;
+ case (0x18):
+ printf ("AVG");
+ break;
+ }
+ //byte 4
+ if ((d[4] & 0x42))
+ {
+ fprintf (stderr, "DEBUG: bits (1,5,6) not zero in byte[4]: ");
+ dumpdata (d, len, stderr);
+ }
+ if (!(d[4] & 0x80))
+ {
+ fprintf (stderr, "DEBUG: bit 7 in byte[4] not 1: ");
+ dumpdata (d, len, stderr);
+ }
+ printf (" %s %s %s %s %s", d[4] & 0x20 ? "LOWBAT" : "_",
+ d[4] & 4 ? "Hz" : "_", d[4] & 1 ? "HOLD" : "SAMPLE",
+ d[4] & 8 ? "OVERFLOW" : "_", d[4] & 0x10 ? "-" : "+");
+
+}
+
+void
+printxvalue (unsigned char *d, int len, int dot)
+{
+
+ int i;
+ int r;
+// printf("<%d %d > ",base_range,sub_range);
+ // if(sub_range==6 && d[1]==0xE0)
+ // sub_range+=2;
+
+// printf("<%d %d> ",base_range[sub_range],sub_range);
+ d += 5;
+ r = base_range[sub_range] + 1;
+ for (i = 0; i < 5; i++, d++)
+ {
+ if (*d == 0x3f)
+ {
+ putchar (' ');
+ continue;
+ }
+ if (*d == 0x3e)
+ {
+ putchar ('L');
+ continue;
+ }
+ if (*d >= 0x30 && *d < 0x3a)
+ {
+ if (r == 1)
+ printf (".");
+ r--;
+ putchar (*d);
+ continue;
+ }
+ {
+ fprintf (stderr, "DEBUG, unknown character in ascci adc value %02X: ",
+ *d);
+ dumpdata (d, len, stderr);
+ }
+ }
+}
+
+void
+printmode (unsigned char *buf, int len)
+{
+
+ switch (buf[1])
+ { //measurment mode
+ case (0xF8):
+ printf ("AC V ");
+ base_range = F8_range;
+ break;
+ case (0xF0):
+ printf ("DC V ");
+ base_range = F0_range;
+ break;
+ case (0xE8):
+ printf ("DC mV ");
+ base_range = E8_range;
+ break;
+ case (0xE0):
+ printf ("R ");
+ base_range = E0_range; //800
+ break;
+ case (0xE1):
+ printf ("C ");
+ base_range = E1_range; //8
+ break;
+ case (0xD8):
+ printf ("D ");
+ base_range = D8_range; //8
+ break;
+ case (0xA8):
+ printf ("DC A ");
+ base_range = A8_range; //8
+ break;
+ case (0xA9):
+ printf ("AC A ");
+ base_range = A9_range; //8
+ break;
+ case (0xB0):
+ printf ("AC mA ");
+ base_range = B0_range; //80
+ break;
+ case (0xB1):
+ printf ("DC mA ");
+ base_range = B1_range; //80
+ break;
+ default:
+ printf ("?");
+ base_range = FAIL_range;
+ fprintf (stderr, "DEBUG, unknown mode %02X: ", buf[1]);
+ dumpdata (buf, len, stderr);
+ }
+}
+
+int
+initserial (char *name)
+{
+ int fd, line;
+ /* Open the device device and lock it. */
+ if ((fd = open (name, O_RDWR | O_NONBLOCK)) == -1)
+ exit (2);
+ if (flock (fd, LOCK_EX | LOCK_NB) == -1)
+ exit (3);
+ /* Flush input and output queues. */
+ if (ioctl (fd, TCFLSH, 2) != 0)
+ exit (4);
+ /* Fetch the current terminal parameters. */
+ if (ioctl (fd, TCGETS, &ts) != 0)
+ exit (4);
+ ts.c_iflag = 0;
+ ts.c_lflag = 0;
+ ts.c_oflag = 0;
+ ts.c_cc[VINTR] = '\0';
+ ts.c_cc[VQUIT] = '\0';
+ ts.c_cc[VERASE] = '\0';
+ ts.c_cc[VKILL] = '\0';
+ ts.c_cc[VEOF] = '\0';
+ ts.c_cc[VTIME] = '\0';
+ ts.c_cc[VMIN] = 1;
+ ts.c_cc[VSWTC] = '\0';
+ ts.c_cc[VSTART] = '\0';
+ ts.c_cc[VSTOP] = '\0';
+ ts.c_cc[VSUSP] = '\0';
+ ts.c_cc[VEOL] = '\0';
+ ts.c_cc[VREPRINT] = '\0';
+ ts.c_cc[VDISCARD] = '\0';
+ ts.c_cc[VWERASE] = '\0';
+ ts.c_cc[VLNEXT] = '\0';
+ ts.c_cc[VEOL2] = '\0';
+ /* Sets hardware control flags: */
+ /* 9600 baud = default */
+ /* 8 data bits */
+ /* Enable receiver */
+ /* Normal use RTS/CTS flow control */
+ ts.c_cflag = CS8 | CREAD | B9600;
+ /* Sets the new terminal parameters. */
+ if (ioctl (fd, TCSETS, &ts) != 0)
+ exit (4);
+ /* Turn off RTS control line. */
+ line = TIOCM_RTS;
+ if (ioctl (fd, TIOCMBIC, &line) != 0)
+ exit (4);
+ /* Turn on DTR control line. */
+ line = TIOCM_DTR;
+ if (ioctl (fd, TIOCMBIS, &line) != 0)
+ exit (4);
+ return (fd);
+}
+
+void
+restoreserial (int fd)
+{
+ if (flock (fd, LOCK_UN) == -1)
+ exit (3);
+ if (close (fd) != 0)
+ exit (2);
+}
projects / ut70d.git_outdated / commitdiff