Pin designations question
Posted by leadinglights
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Pin designations question December 06, 2013 01:12PM |
On the Repetier firmware, waht do the pins in pins.h and uiconfig.h refer to?
for example, in the following, what are pins 54, 55 & 39 in the pins.h for a Ramps 1.3 board?
#define X_STEP_PIN 54
#define X_DIR_PIN 55
#define X_ENABLE_PIN 38
Trying to trace them through the schematics for Ramps 1.3 and Arduino MEGA 2560 they seem to be MCU pins 97, 96 and 50. I can't see anything else on the schematics that they may tie up with.
Further information: I have a number of bits like SD readers (sdramps), LCD displays etc., which I am trying to get to work. After the usual initial "plug it in and see if it works" (it didn't) I started looking at the configuration to check if the pin assignments were right - resulting in confusion only.
Mike.
Ah! light dawns. Anything on the AUX4 port and some other AUX ports, the D numbers like D31 would tie up with 31 on pins.h, while numbers higher the 53 are A0 to A15 (Ramps pin is "D" plus pin number in header file unless number in header file is greater than 53 when it is "A" minus 54. So pin 54 is A0. Simples.
Mike
Edited 1 time(s). Last edit at 12/06/2013 01:35PM by leadinglights.
for example, in the following, what are pins 54, 55 & 39 in the pins.h for a Ramps 1.3 board?
#define X_STEP_PIN 54
#define X_DIR_PIN 55
#define X_ENABLE_PIN 38
Trying to trace them through the schematics for Ramps 1.3 and Arduino MEGA 2560 they seem to be MCU pins 97, 96 and 50. I can't see anything else on the schematics that they may tie up with.
Further information: I have a number of bits like SD readers (sdramps), LCD displays etc., which I am trying to get to work. After the usual initial "plug it in and see if it works" (it didn't) I started looking at the configuration to check if the pin assignments were right - resulting in confusion only.
Mike.
Ah! light dawns. Anything on the AUX4 port and some other AUX ports, the D numbers like D31 would tie up with 31 on pins.h, while numbers higher the 53 are A0 to A15 (Ramps pin is "D" plus pin number in header file unless number in header file is greater than 53 when it is "A" minus 54. So pin 54 is A0. Simples.
Mike
Edited 1 time(s). Last edit at 12/06/2013 01:35PM by leadinglights.
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Re: Pin designations question December 06, 2013 01:58PM |
Excelent, so if I change the difinitions in uiconfig.h to
#else // Direct display connections
#define UI_DISPLAY_RS_PIN 16 // was 63
#define UI_DISPLAY_RW_PIN -1 // Not used
#define UI_DISPLAY_ENABLE_PIN 17 // was 65
#define UI_DISPLAY_D0_PIN 23 // was 59
#define UI_DISPLAY_D1_PIN 25 // was 64
#define UI_DISPLAY_D2_PIN 27 // was 44
#define UI_DISPLAY_D3_PIN 29 // was 66
#define UI_DISPLAY_D4_PIN 23 // was 59
#define UI_DISPLAY_D5_PIN 25 // was 64
#define UI_DISPLAY_D6_PIN 27 // was 44
#define UI_DISPLAY_D7_PIN 29 // was 66
#define UI_DELAYPERCHAR 320
that should work for that - and similarly buzzer to 31 and something for hte encoder and click swich.
I can see that I will have fun - if I dont get stomped on by a gotcha.
Mike
But that was before I read ui.h
Edited 1 time(s). Last edit at 12/06/2013 02:08PM by leadinglights.
#else // Direct display connections
#define UI_DISPLAY_RS_PIN 16 // was 63
#define UI_DISPLAY_RW_PIN -1 // Not used
#define UI_DISPLAY_ENABLE_PIN 17 // was 65
#define UI_DISPLAY_D0_PIN 23 // was 59
#define UI_DISPLAY_D1_PIN 25 // was 64
#define UI_DISPLAY_D2_PIN 27 // was 44
#define UI_DISPLAY_D3_PIN 29 // was 66
#define UI_DISPLAY_D4_PIN 23 // was 59
#define UI_DISPLAY_D5_PIN 25 // was 64
#define UI_DISPLAY_D6_PIN 27 // was 44
#define UI_DISPLAY_D7_PIN 29 // was 66
#define UI_DELAYPERCHAR 320
that should work for that - and similarly buzzer to 31 and something for hte encoder and click swich.
I can see that I will have fun - if I dont get stomped on by a gotcha.
Mike
But that was before I read ui.h
Edited 1 time(s). Last edit at 12/06/2013 02:08PM by leadinglights.
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