Sprinter Firmware for Generation 7 Electronics

Hi All,

I am finalizing my reprap and had some problems with Teacup firmware on Gen 7, so I thought of giving sprinter a shot.
Long story short, I did some modifications and it works!!!! I haven't printed anything yet, so It would be nice if others could try it and report their experiences, and hopefully update it to mainstream..
The changes I made are as follows (I have attached a file named steps.txt that contains the full steps which even include installing arduino with gen 7 support):
1- copy the following files from "arduino-1.0/hardware/arduino/cores/arduino" to "arduino-1.0/hardware/Gen7/cores/arduino":
arduino.h
WCharacter.h
WString.h

2- comment the following lines from "arduino.h" since they are repeated in "wiring.h":

extern const uint16_t PROGMEM port_to_mode_PGM[];
extern const uint16_t PROGMEM port_to_input_PGM[];
extern const uint16_t PROGMEM port_to_output_PGM[];

unsigned long pulseIn(uint8_t pin, uint8_t state, unsigned long timeout = 1000000L);

3- for the firmware changes:
3a- Do the following to "configuration.h"
add this to the list of supported boards for the sake of clarity:

// Gen 7 Board = 7

Change the board type:

#define MOTHERBOARD 7

Comment the following lines as SD and fan aren't supported in Gen 7:

#define SDSUPPORT

#define CONTROLLERFAN_SEC 60 //How many seconds, after all motors were disabled, the fan should run

3b- Add the following to the file "pins.h":

/****************************************************************************************
* Gen 7 Motherboard  
*
*                   ATMega644/ATMega644P
*
*                        +---\/---+
*            (D 0) PB0  1|        |40  PA0 (AI 0 / D31)
*            (D 1) PB1  2|        |39  PA1 (AI 1 / D30)
*       INT2 (D 2) PB2  3|        |38  PA2 (AI 2 / D29)
*        PWM (D 3) PB3  4|        |37  PA3 (AI 3 / D28)
*        PWM (D 4) PB4  5|        |36  PA4 (AI 4 / D27)
*       MOSI (D 5) PB5  6|        |35  PA5 (AI 5 / D26)
*       MISO (D 6) PB6  7|        |34  PA6 (AI 6 / D25)
*        SCK (D 7) PB7  8|        |33  PA7 (AI 7 / D24)
*                  RST  9|        |32  AREF
*                  VCC 10|        |31  GND 
*                  GND 11|        |30  AVCC
*                XTAL2 12|        |29  PC7 (D 23)
*                XTAL1 13|        |28  PC6 (D 22)
*       RX0 (D 8)  PD0 14|        |27  PC5 (D 21) TDI
*       TX0 (D 9)  PD1 15|        |26  PC4 (D 20) TDO
*  INT0 RX1 (D 10) PD2 16|        |25  PC3 (D 19) TMS
*  INT1 TX1 (D 11) PD3 17|        |24  PC2 (D 18) TCK
*       PWM (D 12) PD4 18|        |23  PC1 (D 17) SDA
*       PWM (D 13) PD5 19|        |22  PC0 (D 16) SCL
*       PWM (D 14) PD6 20|        |21  PD7 (D 15) PWM
*                        +--------+
*
****************************************************************************************/
#if MOTHERBOARD == 7
#define KNOWN_BOARD 1

#if !defined(__AVR_ATmega644P__) && !defined(__AVR_ATmega1284P__) && !defined(__AVR_ATmega644__) 
#error Oops!  Make sure you have 'Gen 7' selected from the 'Tools -> Boards' menu.
#endif

#define	X_STEP_PIN			19
#define	X_DIR_PIN			18	
#define	X_MIN_PIN			7
#define	X_MAX_PIN			6
#define	X_ENABLE_PIN			24

#define	Y_STEP_PIN			23
#define	Y_DIR_PIN			22
#define	Y_MIN_PIN			5
#define	Y_MAX_PIN			2
#define	Y_ENABLE_PIN			24

#define	Z_STEP_PIN			26
#define	Z_DIR_PIN			25
#define	Z_MIN_PIN			1
#define	Z_MAX_PIN			0
#define	Z_ENABLE_PIN			24

#define	E_STEP_PIN			28
#define	E_DIR_PIN			27
#define E_ENABLE_PIN			24

#define	PS_ON_PIN			15
#define STEPPER_ENABLE_PIN		24

#define SDPOWER				-1
#define SDSS				-1
#define LED_PIN				-1
#define FAN_PIN				-1
#define KILL_PIN			-1
#define ALARM_PIN			-1

#define HEATER_0_PIN       		4
#define TEMP_0_PIN          		1//D30 // MUST USE ANALOG INPUT NUMBERING NOT DIGITAL OUTPUT NUMBERING!!!!!!!!!

#define HEATER_1_PIN       		3
#define TEMP_1_PIN          		2//D29 // MUST USE ANALOG INPUT NUMBERING NOT DIGITAL OUTPUT NUMBERING!!!!!!!!!

/*  Unused (0) (1) (2) (3) (4) (5) (6) (7) 8 9 10 11 12 13 14 (15) 16 17 (18) (19) 20 21 (22) (23) (24) (25) (26) (27) (28) (29) (30) 31  */



#endif

** It has been tested on an Ubuntu 11.10 64 bit machine with Arduino 1.0, with ATMega644 (no P) and clock rate of 20Mhz

Sorry for not replying to your precise questions, but what are the problems you had with Teacup on Gen 7 ? I have it working like a charm here.

---

Most of my technical comments should be correct, but is THIS one ?
Anyway, as a rule of thumb, always double check what people write.

The firmware kept crashing after receiving a few commands during printing.. My guess is that it is a hardware problem that I have ( [forums.reprap.org] ) specially that I am using some salvaged old capacitors, and am too lazy/busy to go and buy some new ones..
Also, when I saw this post (http://blog.reprap.org/2011/09/tipping-point-of-print-quality-open.html) I really wanted to try sprinter

Well, if this is really an hardware problem, you might have the same problem with another firmware.

I'm going to read your post about that anyway, I got freezes with gen7 and Teacup after some random printing time, I blame it on EMI for now.


Edit : Also I tend to believe that Teacup will do anything sprinter can do.

Edited 1 time(s). Last edit at 02/17/2012 06:56AM by DeuxVis.

---

Most of my technical comments should be correct, but is THIS one ?
Anyway, as a rule of thumb, always double check what people write.

Well, am not the expert here since I haven't printed anything yet!!!!!! am building my reprap slowly as I have many other things to attend to
I guess Teacup is very good since when I looked at a comparison of firmwares compatible with Gen 7, it was the definite choice for me.. when I start printing I might need to try several firmwares to see where I will be comfortable.

And during my next visit to an electronics shop, I will make sure to buy 22pF capacitors so I can give teacup another shot as u r right, if it gives problems with teacup, then it's probably a matter of time until it gives problems with anything else..

Hello. I am also wondering how can i uploud firmware (sprinter or even marlin) on my gen7 1284p 20MHz ?

Can it be done without programmer?

Edited 2 time(s). Last edit at 12/24/2012 03:11PM by len24.

len24 Wrote:
-------------------------------------------------------
> Can it be done without programmer?
Yes if the processor already has a bootloader on it (as in a Gen7 kit), no if it's completely blank (as bought from a general electronics supplier).

Instructions for both methods are here.