GPIO - Conflit with button and screen

[Marty33]

Hello all

After hard work, i compiled buttons, screen and sound on GPiO.

This tutorial for the buttons : https://sudomod.com/forum/viewtopic.php?t=57

Screen and sound from previous posts.

BUT, i have conflict with the number 15. Screen and up button...



Can you help me ? Big thanks

[jakejm79]

Just edit the retrogame.cfg file in the boot partition, pin 25, 24 or 7 would make a good substitute.

[Marty33]

Ho ok.

In retrogame.cfg, i see that :

Code: Select all

	// Input   Output (from /usr/include/linux/input.h)
	{  23,     KEY_LEFT     },   // Joystick (4 pins)
	{   0,     KEY_RIGHT    },
	{   1,     KEY_DOWN     },
        {  22,     KEY_UP       },	
        {  12,     KEY_ENTER    },   // START
    	{   5,     KEY_S        },   // SELECT
	{  16,     KEY_A        },   // A
	{   6,     KEY_B        },   // B
	{  19,     KEY_Y        },   // Y
	{  26,     KEY_X        },   // X
	{  20,     KEY_R        },   // RT
        {  21,     KEY_L        },   // LT
	
	{  -1,     -1           } }; // END OF LIST, DO NOT CHANGE

The up button is on 22. I don't understand. There's already something that doesn't fit here...

[moosepr]

What screen are you using? If you using fbtft to drive an SPI screen, you can manually adjust the DC and reset pins for the screen connection

[rodocop]

Ho ok.

In retrogame.cfg, i see that :

Code: Select all

	// Input   Output (from /usr/include/linux/input.h)
	{  23,     KEY_LEFT     },   // Joystick (4 pins)
	{   0,     KEY_RIGHT    },
	{   1,     KEY_DOWN     },
        {  22,     KEY_UP       },	
        {  12,     KEY_ENTER    },   // START
    	{   5,     KEY_S        },   // SELECT
	{  16,     KEY_A        },   // A
	{   6,     KEY_B        },   // B
	{  19,     KEY_Y        },   // Y
	{  26,     KEY_X        },   // X
	{  20,     KEY_R        },   // RT
        {  21,     KEY_L        },   // LT
	
	{  -1,     -1           } }; // END OF LIST, DO NOT CHANGE

The up button is on 22. I don't understand. There's already something that doesn't fit here...

For the controls they use the bcm number so 22 = physical pin 15.

[Marty33]

Okayyyyy ! Big thanks @rodocop

I did a search, if i wired the up on PIN 7 -> physical pin 4 ?

And my code is :

Code: Select all

	// Input   Output (from /usr/include/linux/input.h)
	{  23,     KEY_LEFT     },   // Joystick (4 pins)
	{   0,     KEY_RIGHT    },
	{   1,     KEY_DOWN     },
	
        {  7,     KEY_UP       },
        	
        {  12,     KEY_ENTER    },   // START
    	{   5,     KEY_S        },   // SELECT
	{  16,     KEY_A        },   // A
	{   6,     KEY_B        },   // B
	{  19,     KEY_Y        },   // Y
	{  26,     KEY_X        },   // X
	{  20,     KEY_R        },   // RT
        {  21,     KEY_L        },   // LT
	
	{  -1,     -1           } }; // END OF LIST, DO NOT CHANGE

What screen are you using? If you using fbtft to drive an SPI screen, you can manually adjust the DC and reset pins for the screen connection

Here my screen :

[moosepr]

ah ok, you wont be moving those pins anytime soon