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Initialize the I2C bus of the EEPROM. Organize related macros neatly.

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This commit is contained in:
László Monda
2016-10-05 21:27:49 +02:00
parent f0b63a6f7b
commit 4830c98d50
2 changed files with 47 additions and 24 deletions
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43
right/src/i2c.h
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@@ -1,29 +1,36 @@
#ifndef __I2C_H__
#define __I2C_H__
#define I2C_MAIN_BUS_SDA_PORT PORTD
#define I2C_MAIN_BUS_SDA_CLOCK kCLOCK_PortD
#define I2C_MAIN_BUS_SDA_PIN 3
// Macros:
#define I2C_MAIN_BUS_SCL_PORT PORTD
#define I2C_MAIN_BUS_SCL_CLOCK kCLOCK_PortD
#define I2C_MAIN_BUS_SCL_PIN 2
// Main bus
#define I2C_EEPROM_BUS_SDA_PORT PORTC
#define I2C_EEPROM_BUS_SDA_CLOCK kCLOCK_PortC
#define I2C_EEPROM_BUS_SDA_PIN 11
#define I2C_MAIN_BUS_BASEADDR I2C0
#define I2C_MASTER_BUS_CLK_SRC I2C0_CLK_SRC
#define I2C_MAIN_BUS_BAUD_RATE 100000 // 100 kHz works even with a 20 meter long bridge cable.
#define I2C_MAIN_BUS_MUX kPORT_MuxAlt7
#define I2C_EEPROM_BUS_SCL_PORT PORTC
#define I2C_EEPROM_BUS_SCL_CLOCK kCLOCK_PortD
#define I2C_EEPROM_BUS_SCL_PIN 10
#define I2C_MAIN_BUS_SDA_PORT PORTD
#define I2C_MAIN_BUS_SDA_CLOCK kCLOCK_PortD
#define I2C_MAIN_BUS_SDA_PIN 3
#define I2C_MAIN_BUS_BASEADDR I2C0
#define I2C_EEPROM_BUS_BASEADDR I2C1
#define I2C_MAIN_BUS_SCL_PORT PORTD
#define I2C_MAIN_BUS_SCL_CLOCK kCLOCK_PortD
#define I2C_MAIN_BUS_SCL_PIN 2
#define I2C_MAIN_BUS_BAUD_RATE 100000
#define I2C_EEPROM_BUS_BAUD_RATE 1000000
// EEPROM bus
#define I2C_MASTER_BUS_CLK_SRC I2C0_CLK_SRC
#define I2C_EEPROM_BUS_CLK_SRC I2C1_CLK_SRC
#define I2C_EEPROM_BUS_BASEADDR I2C1
#define I2C_EEPROM_BUS_CLK_SRC I2C1_CLK_SRC
#define I2C_EEPROM_BUS_BAUD_RATE 1000000 // 1 Mhz is the maximum speed of the EEPROM.
#define I2C_EEPROM_BUS_MUX kPORT_MuxAlt2
#define I2C_EEPROM_BUS_SDA_PORT PORTC
#define I2C_EEPROM_BUS_SDA_CLOCK kCLOCK_PortC
#define I2C_EEPROM_BUS_SDA_PIN 11
#define I2C_EEPROM_BUS_SCL_PORT PORTC
#define I2C_EEPROM_BUS_SCL_CLOCK kCLOCK_PortC
#define I2C_EEPROM_BUS_SCL_PIN 10
#endif