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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)
Line 7: Line 7:
 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 |+
  
 +Spannung 1 mA:
 +^ + \ - ^    6 ^    7 ^    8 ^    9 ^   10 ^   11 ^   12 ^ Vias ^ Geometrie ​ ^ relativ ^ Vermutung ^ Beschreibung des Pins ^
 +|     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>​ | 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       | |
 +|     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>​ | 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 langsam, wenn 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 ist, gibts kein gescheites bild mehr
 +  * 11 DPI Mode
 +    * macht auf jeden Fall, wieviele 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 -> Shiftregister,​ neue 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 57: 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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