config_raspberry_03.h File Reference

Configuration settings for Raspberry Pi3. More...

Macros
#define	GPIO2pin
	GPIO [0..39] to pin number (1..40) lookup list.
#define	PIN03
	SDA1 ( 0 on Pi1).
#define	PIN05
	SCL ( 1 on Pi1).
#define	PIN07
	GPCLK0.
#define	PIN08
	TXDI.
#define	PIN10
	RXDI.
#define	PIN13
	(21 on Pi1)
#define	PIN19
	MOSI | S.
#define	PIN21
	MISO | P.
#define	PIN23
	SCLK | I.
#define	PIN24
	CE0 /.
#define	PIN26
	CE1 /.
#define	PIN27
	SDA0.
#define	PIN28
	SCL0.
#define	PIN2gpio
	Pin number [0..43] to GPIO number lookup list.
#define	stdUARTpath
	Pi's standard UART.

Detailed Description

Configuration settings for Raspberry Pi3.

This file contains some platform (type) specific definitions. These settings influence the compilation and build process. Most of those settings can not be changed later at runtime.

With respect to (process) I/O pins there is no difference to Pi3b. Hence, for Pi3* define PLATFORM as raspberry_03. Additionally, there is no difference between Pi4*, Pi0* and Pi3*; hence the defines in config_raspberry_04.h, config_raspberry_00.h and config_raspberry_03.h are the same.

Copyright  (c)   2019 2026   Albrecht Weinert
weinert-automation.de        a-weinert.de
 
    /         /      /\
   /         /___   /  \      |
   \        /____\ /____\ |  _|__
    \  /\  / \    /      \|   |
     \/  \/   \__/        \__/|_                                 

Revision history

Rev. 145 17.09.2026
Rev. 190 12.02.2019 : minor, comments only
Rev. 209 10.07.2019 : stdUARTpath
Rev. 231 13.08.2020 : two digit PIN0x  and  GPIO2pin added
Rev.  82 15.04.2025 : SVN changed, no serial0
Rev. 145 15.09.2026 : typos, comments

Macro Definition Documentation

GPIO2pin

#define GPIO2pin

GPIO [0..39] to pin number (1..40) lookup list.

0 means has no pin on the 40 pin connector.

See also

PIN2gpio gpio2pin

PIN2gpio

#define PIN2gpio

Pin number [0..43] to GPIO number lookup list.

Return values:

0..56: "real" GPIO number;
95:     5V pins;
93: 3.3V;
90: Ground 0V;
99: not existent 

N.b.: [1..40] are: valid pin numbers, only.

Special pins list:

pins 6 9 14 20 25 30 34 39 : gnd
pins 1 17    : 3.3V
pins 2 4     : 5V
pins 27 28   : ID_SD/SC (HAT board & EEPROM interface)  or GPIO 0 and 1

stdUARTpath

#define stdUARTpath

Pi's standard UART.

It is the one on the Pins 8 (GPIO14) for Tx and 10 (GPIO15) for Rx. Here it is set to the long year standard value /dev/serial0. As this seemed changed in some Raspbians or Raspberry Pi OS, this macro definition can be overruled in a target specific include file.