80 lines
2.7 KiB
C
80 lines
2.7 KiB
C
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/*
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* This file is subject to the terms of the GFX License. If a copy of
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* the license was not distributed with this file, you can obtain one at:
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*
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* http://ugfx.io/license.html
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*/
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/**
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* @file boards/base/Olimex-SAM7EX256-GE8/board_uext.h
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* @brief Definitions describing the UEXT interface
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*/
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#ifndef _BOARD_UEXT_H
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#define _BOARD_UEXT_H
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/*
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* The UEXT official pin definitions
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*
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* +-------+
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* 3.3V 1 | + + | 2 GND
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* TX 3 | + + | 4 RX
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* SCL 5 + + | 6 SDA
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* MISO 7 | + + | 8 MOSI
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* SCK 9 | + + | 10 SSEL/CS
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* +-------+
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*
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* Note many small displays using SPI will incorrectly use the SCL/SDA terminology on their pins.
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* They should be connected to SCK/MOSI respectively
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*/
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// These definitions match the physical arrangement of the UEXT on your board
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#define UEXT_PORT_PIN3 AT91C_BASE_PIOA
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#define UEXT_PORTPIN_PIN3 6
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#define UEXT_PORT_PIN4 AT91C_BASE_PIOA
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#define UEXT_PORTPIN_PIN4 5
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#define UEXT_PORT_PIN5 AT91C_BASE_PIOA
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#define UEXT_PORTPIN_PIN5 11
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#define UEXT_PORT_PIN6 AT91C_BASE_PIOA
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#define UEXT_PORTPIN_PIN6 10
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#define UEXT_PORT_PIN7 AT91C_BASE_PIOA
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#define UEXT_PORTPIN_PIN7 24
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#define UEXT_PORT_PIN8 AT91C_BASE_PIOA
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#define UEXT_PORTPIN_PIN8 23
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#define UEXT_PORT_PIN9 AT91C_BASE_PIOA
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#define UEXT_PORTPIN_PIN9 22
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#define UEXT_PORT_PIN10 AT91C_BASE_PIOA
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#define UEXT_PORTPIN_PIN10 21
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// The ports that the various serial devices use for UEXT on your board
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#define UEXT_SERIAL (&SD2) // TX = UEXT PIN 3, RX = UEXT PIN 4
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#define UEXT_SPI (&SPID2) // MISO = UEXT PIN 7, MOSI = UEXT PIN 8, SCK = UEXT PIN 9, CS = UEXT PIN 10
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#define UEXT_I2C (&I2CD1) // SCL/TWCK = UEXT PIN 5, SDA/TWD = UEXT PIN 6
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// We now define generic names for the UEXT pins
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#define UEXT_SPI_MISO_PORT UEXT_PORT_PIN7
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#define UEXT_SPI_MISO_PORTPIN UEXT_PORTPIN_PIN7
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#define UEXT_SPI_MOSI_PORT UEXT_PORT_PIN8
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#define UEXT_SPI_MOSI_PORTPIN UEXT_PORTPIN_PIN8
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#define UEXT_SPI_SCK_PORT UEXT_PORT_PIN9
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#define UEXT_SPI_SCK_PORTPIN UEXT_PORTPIN_PIN9
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#define UEXT_SPI_CS_PORT UEXT_PORT_PIN10
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#define UEXT_SPI_CS_PORTPIN UEXT_PORTPIN_PIN10
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#define UEXT_I2C_SCL_PORT UEXT_PORT_PIN5
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#define UEXT_I2C_SCL_PORTPIN UEXT_PORTPIN_PIN5
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#define UEXT_I2C_SDA_PORT UEXT_PORT_PIN6
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#define UEXT_I2C_SDA_PORTPIN UEXT_PORTPIN_PIN6
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#define UEXT_SERIAL_TX_PORT UEXT_PORT_PIN3
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#define UEXT_SERIAL_TX_PORTPIN UEXT_PORTPIN_PIN3
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#define UEXT_SERIAL_RX_PORT UEXT_PORT_PIN4
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#define UEXT_SERIAL_RX_PORTPIN UEXT_PORTPIN_PIN4
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#define UEXT_I2C_TWCK_PORT UEXT_PORT_PIN5
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#define UEXT_I2C_TWCK_PORTPIN UEXT_PORTPIN_PIN5
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#define UEXT_I2C_TWD_PORT UEXT_PORT_PIN6
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#define UEXT_I2C_TWD_PORTPIN UEXT_PORTPIN_PIN6
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#endif /* _BOARD_UEXT_H */
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