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Improve the UEXT bus descriptor file

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This commit is contained in:
inmarket 2015-05-09 23:38:47 +10:00
parent 734416a840
commit 201172ab69
1 changed files with 18 additions and 2 deletions
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20
boards/base/Olimex-SAM7EX256-GE8/board_uext.h
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@ -13,6 +13,21 @@
#ifndef _BOARD_UEXT_H #ifndef _BOARD_UEXT_H
#define _BOARD_UEXT_H #define _BOARD_UEXT_H
/*
* The UEXT official pin definitions
*
* +-------+
* 3.3V 1 | + + | 2 GND
* TX 3 | + + | 4 RX
* SCL 5 + + | 6 SDA
* MISO 7 | + + | 8 MOSI
* SCK 9 | + + | 10 SSEL/CS
* +-------+
*
* Note many small displays using SPI will incorrectly use the SCL/SDA terminology on their pins.
* They should be connected to SCK/MOSI respectively
*/
// These definitions match the physical arrangement of the UEXT on your board // These definitions match the physical arrangement of the UEXT on your board
#define UEXT_PORT_PIN3 AT91C_BASE_PIOA #define UEXT_PORT_PIN3 AT91C_BASE_PIOA
#define UEXT_PORTPIN_PIN3 6 #define UEXT_PORTPIN_PIN3 6
@ -31,11 +46,12 @@
#define UEXT_PORT_PIN10 AT91C_BASE_PIOA #define UEXT_PORT_PIN10 AT91C_BASE_PIOA
#define UEXT_PORTPIN_PIN10 21 #define UEXT_PORTPIN_PIN10 21
// The ports that the various serial devices use for UEXT on your board
#define UEXT_SERIAL (&SD2) // TX = UEXT PIN 3, RX = UEXT PIN 4 #define UEXT_SERIAL (&SD2) // TX = UEXT PIN 3, RX = UEXT PIN 4
#define UEXT_SPI (&SPID2) // MISO = UEXT PIN 7, MOSI = UEXT PIN 8, SCK = UEXT PIN 9, CS = UEXT PIN 10 #define UEXT_SPI (&SPID2) // MISO = UEXT PIN 7, MOSI = UEXT PIN 8, SCK = UEXT PIN 9, CS = UEXT PIN 10
#define UEXT_I2C (&I2CD1) // TWCK = UEXT PIN 5, TWD = UEXT PIN 6 #define UEXT_I2C (&I2CD1) // SCL/TWCK = UEXT PIN 5, SDA/TWD = UEXT PIN 6
// We now define generic names for the UEXT pins
#define UEXT_SPI_MISO_PORT UEXT_PORT_PIN7 #define UEXT_SPI_MISO_PORT UEXT_PORT_PIN7
#define UEXT_SPI_MISO_PORTPIN UEXT_PORTPIN_PIN7 #define UEXT_SPI_MISO_PORTPIN UEXT_PORTPIN_PIN7
#define UEXT_SPI_MOSI_PORT UEXT_PORT_PIN8 #define UEXT_SPI_MOSI_PORT UEXT_PORT_PIN8