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projekte:epson-stylus-sx100 [2016-06-04 03:35]
cracki [Contact Image Sensor]
projekte:epson-stylus-sx100 [2017-01-17 02:01] (current)
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 Uebrig sind: Uebrig sind:
  
-  * Contact Image Sensor mit LEDs+  * [[projekte:​contact_image_sensor|Contact Image Sensor]] mit LEDs
   * Schrittmotor (96 Schritte, 18 Ohm, ~0.2-0.3 Ampere)   * Schrittmotor (96 Schritte, 18 Ohm, ~0.2-0.3 Ampere)
   * zwei DC Motoren, vmtl brushed   * zwei DC Motoren, vmtl brushed
Line 16: Line 16:
  
 Beschriftungen:​ FC11B913F56 F KTH0351-2 Beschriftungen:​ FC11B913F56 F KTH0351-2
 +
 +Numerierung:​
 +  * Rohm: Pin 1 aussen.
 +  * PCB: Pin 1 innen <- die nehmen wir
 +
 +==== Beleuchtung ====
  
 Die LEDs brauchen so 2-3 Volt, Strom ~20 mA bringt schon Licht. Die LEDs brauchen so 2-3 Volt, Strom ~20 mA bringt schon Licht.
Line 21: Line 27:
 die TO Pins am PCB sind: V+, Blau, Rot, Gruen. die TO Pins am PCB sind: V+, Blau, Rot, Gruen.
  
-NumerierungFlachbandkabel von oben kommendConnector von innen nach aussen+Bei 5V Versorgung sollte mit folgenden Widerständen nach Erde gezogen werden fuer weisses PapierRot:50Grün:50, Blau:220.
  
 +<​pagebreak>​
 +Spannung 1 mA:
 ^ + \ - ^  1 ^  2 ^  3 ^  4 ^  5 ^ Beschreibung des Pins ^ ^ + \ - ^  1 ^  2 ^  3 ^  4 ^  5 ^ Beschreibung des Pins ^
-|     1 | x |   ​  ​  ​  ​| N/C (so weit sich erkennen laesst) | +|     1 |  x |             | N/C (so weit sich erkennen laesst) | 
-|     2 |   ​| x |   ​  ​  ​| LED Rot | +|     2 |     x |          | LED GND Rot | 
-|     3 |   ​  ​| x |   ​  ​| LED Gruen | +|     3 |        x |       | LED GND Gruen | 
-|     4 |   ​  ​  ​| x |   ​| LED Blau | +|     4 |           x |    | LED GND Blau | 
-|     5 |   ​| R | G | B | x | LED VCC |+|     5 |     R |  G |  B |  x | LED |
  
-^ + \ - ^    6 ^    7 ^    8 ^    9 ^   10 ^   11 ^   12 ^ Beschreibung des Pins ^ +==== Datensignale ====
-|     6 |    x | <typo bg:#​ffe0b2>​0.61</​typo>​ | <typo bg:#​bdb2ff>​1.85</​typo>​ | <typo bg:#​b2f1ff>​1.51</​typo>​ | <typo bg:#​bdb2ff>​1.85</​typo>​ | <typo bg:#​bdb2ff>​1.85</​typo>​ | <typo bg:#​bdb2ff>​1.85</​typo>​ | duenne Bahn zwischen oberer Flaeche und Schrauben, 1 Via je Segment | +
-|     7 | <typo bg:#​b2ffcc>​1.22</​typo>​ |    x | <typo bg:#​b2ffe6>​1.34</​typo>​ | <typo bg:#​caffb2>​0.99</​typo>​ | <typo bg:#​b2ffe6>​1.34</​typo>​ | <typo bg:#​b2ffe6>​1.34</​typo>​ | <typo bg:#​b2ffe4>​1.33</​typo>​ | breite Flaeche ganz oben, 2 Vias je Segment | +
-|     8 | <typo bg:#​bdb2ff>​1.85</​typo>​ | <typo bg:#​ffe0b2>​0.61</​typo>​ |    x | <typo bg:#​b2f1ff>​1.51</​typo>​ | <typo bg:#​bdb2ff>​1.85</​typo>​ | <typo bg:#​bdb2ff>​1.85</​typo>​ | <typo bg:#​b6b2ff>​1.82</​typo>​ | duenne Bahn, 1 Via je Segment von unten hochstechend | +
-|     9 | <typo bg:#​ffb4b2>​0.41</​typo>​ | <typo bg:#​ffb2bd>​0.35</​typo>​ | <typo bg:#​ffb4b2>​0.41</​typo>​ |    x | <typo bg:#​ffb4b2>​0.41</​typo>​ | <typo bg:#​ffb4b2>​0.41</​typo>​ | <typo bg:#​ffb2b2>​0.40</​typo>​ | breite Flaeche unten, ueber #8, 3-5 Vias je Segment | +
-|    10 | <typo bg:#​bbb2ff>​1.84</​typo>​ | <typo bg:#​ffe0b2>​0.61</​typo>​ | <typo bg:#​bbb2ff>​1.84</​typo>​ | <typo bg:#​b2f4ff>​1.50</​typo>​ |    x | <typo bg:#​bbb2ff>​1.84</​typo>​ | <typo bg:#​b9b2ff>​1.83</​typo>​ | breite Flaeche mitte, wo die Schrauben durchgehen (aber kein kontakt). 1 Via/Segment | +
-|    11 | <typo bg:#​bdb2ff>​1.85</​typo>​ | <typo bg:#​ffe0b2>​0.61</​typo>​ | <typo bg:#​bdb2ff>​1.85</​typo>​ | <typo bg:#​b2f1ff>​1.51</​typo>​ | <typo bg:#​bdb2ff>​1.85</​typo>​ |    x | <typo bg:#​bdb2ff>​1.85</​typo>​ | duenne Bahn, unter der Mittleren Flaeche, ueber #12, 1 Via/Segment | +
-|    12 | <typo bg:#​bbb2ff>​1.84</​typo>​ | <typo bg:#​ffe0b2>​0.61</​typo>​ | <typo bg:#​bbb2ff>​1.84</​typo>​ | <typo bg:#​b2f4ff>​1.50</​typo>​ | <typo bg:#​b9b2ff>​1.83</​typo>​ | <typo bg:#​bbb2ff>​1.84</​typo>​ |    x | duenne Bahn, ueber der unteren Flaeche, unter #11, 1 Via/Segment |+
  
-Vermutungen+Spannung 1 mA
-  ​6,8,​10,​11,​12: ​Daten +^ + \ - ^    6 ^    7 ^    8 ^    9 ^   10 ^   11 ^   12 ^ Vias ^ Geometrie ​ ^ relativ ^ Vermutung ^ Beschreibung des Pins ^ 
-  * 7,9Versorgung+|     |    x | <typo bg:#​ffe0b2>​0.61</​typo>​ | <typo bg:#​bdb2ff>​1.85</​typo>​ | <typo bg:#​b2f1ff>​1.51</​typo>​ | <typo bg:#​bdb2ff>​1.85</​typo>​ | <typo bg:#​bdb2ff>​1.85</​typo>​ | <typo bg:#​bdb2ff>​1.85</​typo>​ | 1    | dünn       ​| ​        | Startpuls | zwischen oberer Flaeche und Schrauben | 
 +|     7 | <typo bg:#​b2ffcc>​1.22</​typo>​ |    x | <typo bg:#​b2ffe6>​1.34</​typo>​ | <typo bg:#​caffb2>​0.99</​typo>​ | <typo bg:#​b2ffe6>​1.34</​typo>​ | <typo bg:#​b2ffe6>​1.34</​typo>​ | <typo bg:#​b2ffe4>​1.33</​typo>​ | 2    | breit      | oben    | 3V3       | | 
 +|     | <typo bg:#​bdb2ff>​1.85</​typo>​ | <typo bg:#​ffe0b2>​0.61</​typo>​ |    x | <typo bg:#​b2f1ff>​1.51</​typo>​ | <typo bg:#​bdb2ff>​1.85</​typo>​ | <typo bg:#​bdb2ff>​1.85</​typo>​ | <typo bg:#​b6b2ff>​1.82</​typo>​ | 1    | dünn       ​| ​        | Clock     | von unten hochstechend | 
 +|     9 | <typo bg:#​ffb4b2>​0.41</​typo>​ | <typo bg:#​ffb2bd>​0.35</​typo>​ | <typo bg:#​ffb4b2>​0.41</​typo>​ |    x | <typo bg:#​ffb4b2>​0.41</​typo>​ | <typo bg:#​ffb4b2>​0.41</​typo>​ | <typo bg:#​ffb2b2>​0.40</​typo>​ | 3-5  | breitestes | unten   | GND       | ueber #8 | 
 +|    10 | <typo bg:#​bbb2ff>​1.84</​typo>​ | <typo bg:#​ffe0b2>​0.61</​typo>​ | <typo bg:#​bbb2ff>​1.84</​typo>​ | <typo bg:#​b2f4ff>​1.50</​typo>​ |    x | <typo bg:#​bbb2ff>​1.84</​typo>​ | <typo bg:#​b9b2ff>​1.83</​typo>​ | 1    | breit      | mitte   | Vref      | driftet langsamwenn Versorgung angeklemmt (andere pins sind nah an GND) | 
 +|    11 | <typo bg:#​bdb2ff>​1.85</​typo>​ | <typo bg:#​ffe0b2>​0.61</​typo>​ | <typo bg:#​bdb2ff>​1.85</​typo>​ | <typo bg:#​b2f1ff>​1.51</​typo>​ | <typo bg:#​bdb2ff>​1.85</​typo>​ |    x | <typo bg:#​bdb2ff>​1.85</​typo>​ | 1    | dünn       ​| ​        | 300/600 dpi | unter der Mittleren Flaeche, ueber #12 | 
 +|    12 | <typo bg:#​bbb2ff>​1.84</​typo>​ | <typo bg:#​ffe0b2>​0.61</​typo>​ | <typo bg:#​bbb2ff>​1.84</​typo>​ | <typo bg:#​b2f4ff>​1.50</​typo>​ | <typo bg:#​b9b2ff>​1.83</​typo>​ | <typo bg:#​bbb2ff>​1.84</​typo>​ |    x | 1    | dünn       ​| ​        | Aout       | ueber der unteren Flaeche, unter #11 | 
 + 
 +==== Insgesamt ==== 
 + 
 +sieht verdammt nach [[http://​rohmfs.rohm.com/​en/​products/​databook/​datasheet/​module/​contact_image_sensor/​flatbed/​lsh3008-ca10a.pdf]] aus 
 + 
 +  * 6 Startpuls 
 +  * 8 Clock 
 +  * 10 Vref (sollte auf GND fest) 
 +    * wenns hoeher istgibts kein gescheites bild mehr 
 +  * 11 DPI Mode 
 +    * macht auf jeden Fallwieviele Clocks man pro Zeile rausholen kann 
 +    * 0/L: 300 dpi ~2600 clocks 
 +    * 1/H: 600 dpi ~5268 clocks 
 +    * nach anderen datenblaettern hat man 82 clocks "​output period",​ dann kommen die pixel (inkl. vorne und hinten dummypixeln) 
 +    * 600 dpi: 5184 pixels 
 +    * 300 dpi: 2592 pixels 
 +  * 12 Analog Out 
 +    * bei steigender Clock gehts scheinbar los (kommt von GND hoch fuer jeden Pixel neu, gefuehlte 100ns hier) 
 +    * bei fallender Clock sampeln klingt sinnvoll 
 + 
 +==== Operation ==== 
 + 
 +Startpuls wird bei fallender Clock gesampelt. Wenn Startpuls, dann werden die Werte in den Ausgabepuffer geschickt. Dann mit Clock rauscyceln. Belichtungszeit haengt wohl vom Intervall zwischen Startpulsen ab. 
 + 
 +Was ich mache (funktioniert,​ kann man bestimmt noch reduzieren): 
 + 
 +  * Werte -> Shiftregisterneue Belichtung starten: 
 +    * Puls hoch 
 +    * Clock hoch 
 +    * warte 500us 
 +    * Clock runter 
 +    * warte 500us 
 +    * Puls runter 
 +  * Shiftregister rausholen:​ 
 +    * Clock rauf (Signal geht los) 
 +    * warte 1us 
 +    * Clock runter (Signal sollte stabil sein, kann man sampeln) 
 +    * warte 1us 
 +    * so oft wie es pixel gibt 
 +  * restliche Belichtungszeit geben 
 +    * warte, 0-20 Millisekunden haben geklappt 
 + 
 +==== Arduino ==== 
 + 
 +<​code>​ 
 +#define START 2 
 +#define CLOCK 3 
 +#define DPIMODE 4 
 + 
 +bool dpimode = 1; 
 +uint16_t pixels = dpimode ? 5184 : 2592; 
 + 
 +uint32_t linetime = 20000; // us 
 +uint32_t sched = 0; 
 + 
 +void setup() { 
 +  pinMode(START,​ OUTPUT); 
 +  pinMode(CLOCK,​ OUTPUT); 
 +  pinMode(DPIMODE,​ OUTPUT); 
 + 
 +  digitalWrite(DPIMODE,​ dpimode); 
 + 
 +  sched = micros(); 
 +
 + 
 +void loop() { 
 +  digitalWrite(START,​ HIGH); 
 +  digitalWrite(CLOCK,​ HIGH); 
 +  digitalWrite(CLOCK,​ LOW); 
 +  digitalWrite(START,​ LOW); 
 + 
 +  for (uint16_t counter = 0; counter < 82 + pixels; counter += 1) 
 +  { 
 +    PORTD |= _BV(PORTD3);​ 
 +    //​delayMicroseconds(1);​ 
 +    PORTD &= ~_BV(PORTD3);​ 
 +    //​delayMicroseconds(1);​ 
 +  } 
 + 
 +  sched += linetime; 
 +  int32_t dt = sched - micros(); 
 +  while (dt > 0x4000) 
 +  { 
 +    delayMicroseconds(0x4000);​ 
 +    dt -= 0x4000; 
 +  } 
 +  if (dt > 0) 
 +    delayMicroseconds(dt);​ 
 +
 +</​code>​
 ==== coloring code ==== ==== coloring code ====
 <​code>​ <​code>​
Line 60: Line 157:
 open("​foo.txt",​ "​w"​).write(rex.sub(colorize,​ source)) open("​foo.txt",​ "​w"​).write(rex.sub(colorize,​ source))
 </​code>​ </​code>​
 +
 +==== Bilder ====
 +
 +{{projekte:​sx100:​img_20160604_004626.jpg?​500|}}
 +
 +{{projekte:​sx100:​img_20160604_004801.jpg?​500|}}
 +
 +{{projekte:​sx100:​img_20160604_004821.jpg?​500|}}
 +
 +
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