3D Time-of-flight distance measurement with custom - Universität ...
3D Time-of-flight distance measurement with custom - Universität ...
3D Time-of-flight distance measurement with custom - Universität ...
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154 CHAPTER 6<br />
VCC<br />
GND<br />
VCC<br />
R 4.7k<br />
Connector<br />
to program<br />
PIC (F877)<br />
GND<br />
4<br />
PICreset<br />
clock_P 13(30)<br />
ITS<br />
FRAME 7<br />
PIX 6<br />
GND 3, 4<br />
PIC<br />
16F877/C74<br />
DIP or (TQFP)<br />
1(18)<br />
10(27) RE2<br />
GND 12,31(6,29)<br />
VCC 11,32(7,28)<br />
RC0 15(32)<br />
Connector<br />
to EPPI<br />
RA5 7(24)<br />
RA4 6(23) FRAME<br />
RA3 5(22)<br />
RA2 4(21) 3 status signals<br />
RA1 3(20)<br />
PIX<br />
VCC<br />
R 4.7k<br />
TAP0<br />
TAP1<br />
IE<br />
RE1 9(26) ST2 2 additional status signals<br />
RE0 8(25) ST1<br />
RA0 2(19) LED_P<br />
RB0 33(8) row0<br />
RB1 34(9) row1<br />
RB2 35(10) row2<br />
RB3 36(11) row3<br />
RB4 37(14) row4<br />
RB5 38(15) PGL<br />
RB6 39(16) PGR<br />
RB7 40(17) INTG<br />
col0<br />
RC1 16(35) col1<br />
RC2 17(36) col2<br />
RC3 18(37) col3<br />
RC4 23(42) col4<br />
RC5 24(43) col5<br />
RC6 25(44) free1<br />
RC7 26(1) free2<br />
RD0 19(38) res0<br />
RD1 20(39) res1<br />
RD2 21(40) res2<br />
RD3 22(41) res3<br />
RD4 27(2) res4<br />
RD5 28(3) free3<br />
RD6 29(4) free4<br />
RD7 30(5) free5<br />
16 (slow) outputs<br />
VCC 1<br />
SDO 2<br />
SDI 3<br />
ispEN 4<br />
5<br />
MODE<br />
GND<br />
SCLK<br />
Crystal<br />
80MHz<br />
GND 7<br />
8 MCLK<br />
VCC 14<br />
Connector<br />
to program<br />
LATTICE<br />
6<br />
7<br />
8<br />
FREE-<br />
I/O's<br />
ispEN<br />
SDI<br />
SDO<br />
SCLK<br />
MODE<br />
TAP0<br />
TAP1<br />
IE<br />
11<br />
65<br />
14<br />
16<br />
39<br />
60<br />
37<br />
67<br />
68<br />
69<br />
ST2 58<br />
ST1 57<br />
LED_P 59<br />
ROW0 81<br />
ROW1 80<br />
ROW2 79<br />
ROW3 78<br />
ROW4 85<br />
PGL_P 84<br />
PGR_P 83<br />
INTG 82<br />
GND 1, 22, 43, 64<br />
VCC 21, 65<br />
41<br />
42<br />
43<br />
44<br />
45<br />
46<br />
47<br />
48<br />
72 LED_L<br />
91 ROW0<br />
92 ROW1<br />
93 ROW2<br />
94 ROW3<br />
95 ROW4<br />
96 PGL_L<br />
97 PGR_L<br />
98 INTG<br />
17<br />
HEX-<br />
18<br />
19<br />
20<br />
35<br />
34<br />
73 PIC_CLK<br />
Connector<br />
to LEDs<br />
LED_L 3<br />
GND 2<br />
+19.5V 1<br />
+8V 4<br />
70 FUTURE_2<br />
71 FUTURE_1<br />
28<br />
29<br />
30<br />
31<br />
32<br />
33<br />
21<br />
22<br />
23<br />
40<br />
86<br />
90<br />
FREE-<br />
SWITCH<br />
FREQ-<br />
SWITCH<br />
SWITCH<br />
6 x Control LED<br />
red<br />
green<br />
red<br />
green<br />
red<br />
green<br />
Figure 6.2 Digital high-speed sequencer: Block diagram.<br />
20, 10,<br />
4, 2 MHz<br />
TP<br />
TP<br />
SMA<br />
BNC<br />
SMA<br />
BNC<br />
DC/DC<br />
+5V, +8V<br />
POWER<br />
VCC (+5V)<br />
Connector<br />
to camera<br />
1 ROW0<br />
2 ROW1<br />
3 ROW2<br />
4 ROW3<br />
5 ROW4<br />
6 PGL_L<br />
7 PGR_L<br />
8 INTG<br />
9<br />
COL0<br />
10<br />
COL1<br />
11<br />
COL2<br />
12<br />
COL3<br />
13<br />
COL4<br />
14<br />
COL5<br />
15<br />
(-)<br />
16<br />
(-)<br />
17<br />
RES0<br />
18<br />
RES1<br />
19<br />
RES2<br />
20<br />
RES3<br />
21<br />
RES4<br />
22<br />
(-)<br />
23<br />
(-)<br />
24<br />
(-)<br />
GND 25, 26, 31, 32<br />
+19.5V 37, 38<br />
VCC 39, 40<br />
33 (ana out) N.C.<br />
34 (AGND) N.C.<br />
In Figure 6.2 we show the block diagram <strong>of</strong> the sequencer board. With several<br />
freely programmable control switches for both the CPLD and the microcontroller,<br />
the board <strong>of</strong>fers flexible adaptation to different needs. For example, it can be<br />
programmed in such a way that the integration time or the readout speed for the<br />
single pixels can be changed during operation by different switches. Other<br />
variations are possible. A total number <strong>of</strong> eight (+1 for the LED control) fast control<br />
signals (80 MHz) can be generated by the CPLD (or simply fed through the CPLD if<br />
the microcontroller should take control). Additionally, the operation mode <strong>of</strong> the<br />
CPLD can be controlled by the microcontroller via five separate status lines.<br />
GND<br />
+8V<br />
+ 19.5V<br />
GND<br />
19.5V<br />
19.5V<br />
GND
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