tslib触摸屏校准点击5点后出错：Illegal instruction
tslib触摸屏校准点击5点后出错：Illegal instruction记录：
#./ts_calibrate
xres = 320, yres = 240
Took 19 samples...
Top left : X =194 Y =270
Took 16 samples...
Top right : X =813 Y =265
Took 13 samples...
Bot right : X =813 Y =747
Took 15 samples...
Bot left : X =193 Y =743
Took 15 samples...
Center : X =501 Y =505
Illegal instruction
#
用strace跟踪得到的最后几句如下：
select(4, , NULL, NULL, {0, 0}) = 1 (in , left {0, 0})
825 read(3, "@\4\0\0\"\305\t\0\3\0\1\0\375\1\0\0", 16) = 16
825 read(3, "@\4\0\0000\305\t\0\0\0\0\0\0\0\0\0", 16) = 16
read(3, "@\4\0\0\205\377\t\0\3\0\1\0\1\2\0\0", 16) = 16
825 select(4, , NULL, NULL, {0, 0}) = 1 (in , left {0, 0})
read(3, "@\4\0\0\307\377\t\0\0\0\0\0\0\0\0\0", 16) = 16
825 select(4, , NULL, NULL, {0, 0}) = 0 (Timeout)
read(3, "@\4\0\0\3769\n\0\3\0\30\0\0\0\0\0", 16) = 16
825 write(1, "Took 13 samples...\n", 19) = 19
825 write(1, "Middle: X =501 Y =505\n", 26) = 26
825 --- SIGILL (Illegal instruction) @ 0 (0) ---
825 +++ killed by SIGILL +++
tslib-1.3和tslib-1.4都出这个错误，
我若将tests/ts_calibrate.c中调用perform_calibration函数的句子注释掉，随便给个条件替换它就不会出现这个错误。
if (perform_calibration (&cal)) {
printf ("Calibration constants: ");
for (i = 0; i < 7; i++) printf("%d ", cal.a );
printf("\n");
if ((calfile = getenv("TSLIB_CALIBFILE")) != NULL) {
cal_fd = open (calfile, O_CREAT | O_RDWR);
} else {
cal_fd = open ("/etc/pointercal", O_CREAT | O_RDWR);
。。。。。。。。。。。。。。。。
不知是触摸屏驱动有问题，还是内核，还是tslib? 已解决 回复【1楼】weilingsi
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请问是怎么解决的呢？我编译的tslib1.3,make后出现这样的错误，make: Leaving directory `/home/tslib-1.3/tests'
make: Entering directory `/home/tslib-1.3'
make: Nothing to be done for `all-am'.
make: Leaving directory `/home/tslib-1.3'
make: Leaving directory `/home/tslib-1.3'
是什么原因嗯？ 楼主， 我也碰到这样的问题了，请问怎么解决的？ 继续顶起。。这个问题还真麻烦了。我还没解决。。 解决。通过换一个支持软件浮点的交叉编译器编译tslib,得到的ts_calibrate复制到开发板上。 楼主也说说原因啊？
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