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--- projekte:cis:canon_mf4370dn [2016-06-15 02:10] – [Messungen] cracki
+++ projekte:cis:canon_mf4370dn [2017-01-17 01:01] (current) – external edit 127.0.0.1
@@ Line 24: / Line 24: @@
     * Barcode: Format ITF, Typ Text, Wert 57038164
-===== Reversing =====
+===== Pinout =====
-Pins gezaehlt von innen (links) nach aussen (rechts).
-==== bestätigt ====
-Bis auf GND sind 1-5 und 6-12 getrennt. Insbesondere 5, trotz weiterer Abzweigung, scheint mit nix weiter zu interagieren.
-Beleuchtung:
-  * 1 GND (= 10)
-  * 2 GND Rot, ~2.3V 50mA
-  * 3 GND Gruen, ~3.45V 50mA
-  * 4 GND Blau, ~3.45V 30mA
-  * 5 VCC (3.3V OK)
-Signale:
   * 6 Clock
   * 7 Startpuls
   * 8 Vref
-  * 9 VCC (3.3V)
+  * 9 VCC (5V)
-  * 10 GND (= 1 GND)
+  * 10 GND
-  * 11 DPI (low: 300, high: 600, default 600/pullup)
+  * 11 DPI (low: 300, high: 600, pullup)
   * 12 Aout
+    * 2-4 V Ausgang, geht nie runter auf 0
+  * regelmäßige blinde Flecke, ca 0.5mm breit jeweils
+  * doppelt so viele blinde Flecke, wenn Spannung an DPI > VCC
+===== Reversing =====
+Pins gezaehlt von innen (links) nach aussen (rechts).
+Bis auf GND sind 1-5 und 6-12 getrennt. Insbesondere 5, trotz weiterer Abzweigung, scheint mit nix weiter zu interagieren.
 ==== Messungen ====
@@ Line 58: / Line 54: @@
 |     4 |       |       |       |  <typo bg:#ffb2b2>0.00</typo> |       | GND Blau  |
 |     5 |       |  <typo bg:#ffb2d0>1.87</typo> |  <typo bg:#b2ffcc>2.78</typo> |  <typo bg:#b2fff3>2.95</typo> |  <typo bg:#ffb2b2>0.00</typo> | VCC (Test: 3.35V 10mA)  |
+auch:
+  * 2 GND Rot, ~2.3V 50mA
+  * 3 GND Gruen, ~3.45V 50mA
+  * 4 GND Blau, ~3.45V 30mA
+bei ~4.5V Versorgung in die LEDs folgende Widerstände nach Erde:
+  * Rot: 220
+  * Grün: 50
+  * Blau: 100
 Spannungen bei 1 mA:
 ^ + \ - ^     6 ^     7 ^     8 ^     9 ^    10 ^    11 ^    12 ^ Aufgabe  ^ Beschreibung  ^
-|     6 |  <typo bg:#ffb2b2>0.00</typo> |  <typo bg:#b2deff>1.14</typo> |  <typo bg:#c8b2ff>1.43</typo> |  <typo bg:#b2ffc7>0.76</typo> |  <typo bg:#b2ffff>1.00</typo> |  <typo bg:#b2deff>1.14</typo> |  <typo bg:#bdb2ff>1.38</typo> | | Betrieb: floating  |
+|     6 |  <typo bg:#ffb2b2>0.00</typo> |  <typo bg:#b2deff>1.14</typo> |  <typo bg:#c8b2ff>1.43</typo> |  <typo bg:#b2ffc7>0.76</typo> |  <typo bg:#b2ffff>1.00</typo> |  <typo bg:#b2deff>1.14</typo> |  <typo bg:#bdb2ff>1.38</typo> | Clock | Betrieb: floating  |
-|     7 |  <typo bg:#b2deff>1.14</typo> |  <typo bg:#ffb2b2>0.00</typo> |  <typo bg:#c8b2ff>1.43</typo> |  <typo bg:#b2ffc7>0.76</typo> |  <typo bg:#b2ffff>1.00</typo> |  <typo bg:#b2deff>1.14</typo> |  <typo bg:#bdb2ff>1.38</typo> | | Betrieb: floating  |
+|     7 |  <typo bg:#b2deff>1.14</typo> |  <typo bg:#ffb2b2>0.00</typo> |  <typo bg:#c8b2ff>1.43</typo> |  <typo bg:#b2ffc7>0.76</typo> |  <typo bg:#b2ffff>1.00</typo> |  <typo bg:#b2deff>1.14</typo> |  <typo bg:#bdb2ff>1.38</typo> | Startpuls | Betrieb: floating  |
 |     8 |  <typo bg:#b2eeff>1.07</typo> |  <typo bg:#b2eeff>1.07</typo> |  <typo bg:#ffb2b2>0.00</typo> |  <typo bg:#b2ffb7>0.69</typo> |  <typo bg:#b2fff5>0.96</typo> |  <typo bg:#b2eeff>1.07</typo> |  <typo bg:#b2fffa>0.98</typo> | Vref | betrieb: low, driftet langsam (Vref?) |
-|     9 |  <typo bg:#b2ffc3>0.74</typo> |  <typo bg:#b2ffc3>0.74</typo> |  <typo bg:#b2eaff>1.09</typo> |  <typo bg:#ffb2b2>0.00</typo> |  <typo bg:#b2ffb3>0.67</typo> |  <typo bg:#b2ffc3>0.74</typo> |  <typo bg:#b2f5ff>1.04</typo> | VCC (3.3V) | |
+|     9 |  <typo bg:#b2ffc3>0.74</typo> |  <typo bg:#b2ffc3>0.74</typo> |  <typo bg:#b2eaff>1.09</typo> |  <typo bg:#ffb2b2>0.00</typo> |  <typo bg:#b2ffb3>0.67</typo> |  <typo bg:#b2ffc3>0.74</typo> |  <typo bg:#b2f5ff>1.04</typo> | VCC | |
 |    10 |  <typo bg:#b2ffbe>0.72</typo> |  <typo bg:#b2ffbe>0.72</typo> |  <typo bg:#c6ffb2>0.58</typo> |  <typo bg:#e8ffb2>0.43</typo> |  <typo bg:#ffb2b2>0.00</typo> |  <typo bg:#b2ffbe>0.72</typo> |  <typo bg:#ddffb2>0.48</typo> | GND | kupferne Masseflaeche, aufgeklebt  |
-|    11 |  <typo bg:#b2dcff>1.15</typo> |  <typo bg:#b2dcff>1.15</typo> |  <typo bg:#cab2ff>1.44</typo> |  <typo bg:#b2ffc5>0.75</typo> |  <typo bg:#b2fcff>1.01</typo> |  <typo bg:#ffb2b2>0.00</typo> |  <typo bg:#bfb2ff>1.39</typo> | DPI | Betrieb: high (3.3V) |
+|    11 |  <typo bg:#b2dcff>1.15</typo> |  <typo bg:#b2dcff>1.15</typo> |  <typo bg:#cab2ff>1.44</typo> |  <typo bg:#b2ffc5>0.75</typo> |  <typo bg:#b2fcff>1.01</typo> |  <typo bg:#ffb2b2>0.00</typo> |  <typo bg:#bfb2ff>1.39</typo> | DPI | Betrieb: high |
 |    12 |  <typo bg:#b2ecff>1.08</typo> |  <typo bg:#b2ecff>1.08</typo> |  <typo bg:#b2fff5>0.96</typo> |  <typo bg:#b2ffb3>0.67</typo> |  <typo bg:#b2fff5>0.96</typo> |  <typo bg:#b2ecff>1.08</typo> |  <typo bg:#ffb2b2>0.00</typo> | Aout | Betrieb: floating low, scheint digitale Werte zu produzieren |
+===== Arduino Code =====
+<code>
+#define START 2
+#define CLOCK 3
+#define DPIMODE 4
+#define LEDR 5
+#define LEDG 6
+#define LEDB 7
+bool dpimode = 1;
+uint16_t pixels = dpimode ? 5184 : 2592;
+uint32_t linetime = 4000; // us
+uint32_t sched = 0;
+uint8_t lightcolor = 0;
+void set_lighting(uint8_t active)
+{
+  digitalWrite(LEDR, !(active & 0b001));
+  digitalWrite(LEDG, !(active & 0b010));
+  digitalWrite(LEDB, !(active & 0b100));
+}
+void setup() {
+  pinMode(START, OUTPUT);
+  pinMode(CLOCK, OUTPUT);
+  pinMode(DPIMODE, OUTPUT);
+  pinMode(LEDR, OUTPUT);
+  pinMode(LEDG, OUTPUT);
+  pinMode(LEDB, OUTPUT);
+  digitalWrite(DPIMODE, dpimode);
+  sched = micros();
+}
+void loop() {
+  set_lighting(0);
+  digitalWrite(START, HIGH);
+  digitalWrite(CLOCK, HIGH);
+  digitalWrite(CLOCK, LOW);
+  digitalWrite(START, LOW);
+  set_lighting(1 << lightcolor);
+  for (uint16_t counter = 82 + pixels; counter-- > 0; )
+  {
+    PORTD |= _BV(PORTD3);
+    PORTD &= ~_BV(PORTD3);
+  }
+  lightcolor = (lightcolor+1) % 3;
+  sched += linetime;
+  int32_t dt = sched - micros();
+  while (dt > 0x4000)
+  {
+    delayMicroseconds(0x4000);
+    dt -= 0x4000;
+  }
+  if (dt > 0)
+    delayMicroseconds(dt);
+}
+</code>

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