Repetier Firmware / Gen 7 - Heatbed always on

On my Gen 7, I have pin.h as following:

/****************************************************************************************
* Gen7 1.4.1 pin assignment
*
****************************************************************************************/
#if MOTHERBOARD == 71
#define KNOWN_BOARD 1

#if !defined(__AVR_ATmega644P__) && !defined(__AVR_ATmega644__) && !defined(__AVR_ATmega1284P__) 
    #error Oops!  Make sure you have 'Gen7' selected from the 'Tools -> Boards' menu.
#endif

//x axis pins
    #define X_STEP_PIN      29
    #define X_DIR_PIN       28
    #define X_ENABLE_PIN    25
    #define X_MIN_PIN       0
    #define X_MAX_PIN       -1
    
    //y axis pins
    #define Y_STEP_PIN      27
    #define Y_DIR_PIN       26
    #define Y_ENABLE_PIN    25
    #define Y_MIN_PIN       1
    #define Y_MAX_PIN       -1
    
    //z axis pins
    #define Z_STEP_PIN      23
    #define Z_DIR_PIN       22
    #define Z_ENABLE_PIN    25
    #define Z_MIN_PIN       2
    #define Z_MAX_PIN       -1
    
    //extruder pins
    #define E_STEP_PIN      19     
    #define E_DIR_PIN       18     
    #define E_ENABLE_PIN    25     
    #define TEMP_0_PIN      0 
    #define TEMP_1_PIN      1    
    #define HEATER_0_PIN    3    
    #define HEATER_1_PIN    4    
    
    
    #define SDPOWER          -1
    #define SDSS          -1 // SCL pin of I2C header
    #define LED_PIN         -1    
       
    #define FAN_PIN         -1    
    #define PS_ON_PIN       15    
    //our pin for debugging.
    
    #define DEBUG_PIN        0
    
    //our RS485 pins
    #define TX_ENABLE_PIN	12
    #define RX_ENABLE_PIN	13

    #define E0_PINS E_STEP_PIN,E_DIR_PIN,E_ENABLE_PIN,
    #define E1_PINS

#endif

and in Sd2PinMap.h

//------------------------------------------------------------------------------
#elif defined(__AVR_ATmega644P__) || defined(__AVR_ATmega644__) || defined(__AVR_ATmega1284P__)
// Sanguino

// Two Wire (aka I2C) ports
uint8_t const SDA_PIN = 17;
uint8_t const SCL_PIN = 18;

// SPI port
uint8_t const SS_PIN = 13;
uint8_t const MOSI_PIN = 5;
uint8_t const MISO_PIN = 6;
uint8_t const SCK_PIN = 7;

Changed SS to something else I am not using

Just testing now, need to add SD later today... but not if heatbed doesnt work:

1. In Repetier Host, I click Heat Extruder: Extruder on pin 3 turns on
2. Click HEat Extruder off, LED by Hotend connector goes off (as expected

3. I click Heat Printbed ON: it does nothing
4. I click Heat Printbed OFF: LED by Heatbed connector goes ON (wtf)
5. Repeat clicking, stays on all the time

Any ideas?

Ahhh! Figured it out...

since I'm still testing on my bed, thermistors are not plugged in.

both read -51degreeC

code of Extruder handles it correctly to know that SET=0, actual=-51 means DO NOT TURN ON
code for Heatbed seems to try and raise it from Sub-Zero to 0 thats why it turns it on

Peter

The next version (current development version) has now a test for not connected thermistors and disables all heaters if one is missing/shorted.

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