stm32_twi2.c File Reference

STM32F I2C bus 1 initialization. More...

#include <cfg/os.h>
#include <cfg/clock.h>
#include <cfg/arch.h>
#include <cfg/twi.h>
#include <cfg/arch/gpio.h>
#include <string.h>
#include <sys/atom.h>
#include <sys/event.h>
#include <sys/timer.h>
#include <dev/irqreg.h>
#include <dev/gpio.h>
#include <dev/twif.h>
#include <arch/cm3/stm/stm32xxxx.h>
#include <arch/cm3/stm/stm32xxxx_gpio.h>
#include <arch/cm3/stm/stm32xxxx_rcc.h>
#include <arch/cm3/stm/stm32_twi.h>

Include dependency graph for stm32_twi2.c:

Defines
#define	I2CBUS2_SCL_PORT   NUTGPIO_PORTB
	I2CBUS2 GPIO configuartion and assignment.
#define	I2CBUS2_SCL_PIN   10
#define	I2CBUS2_SDA_PORT   NUTGPIO_PORTB
#define	I2CBUS2_SDA_PIN   11
#define	I2CBUS2_SMBA_PORT   NUTGPIO_PORTB
#define	I2CBUS2_SMBA_PIN   11
Functions
int	Stm32I2cBus2Recover (void)
int	Stm32I2cBus2Init (void)
	Processor specific Hardware Initiliaization.
Variables
NUTTWIBUS	Stm32TwiBus_2
	TWI/I2C bus structure.

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Detailed Description

STM32F I2C bus 1 initialization.

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Define Documentation

#define I2CBUS2_SCL_PORT   NUTGPIO_PORTB

I2CBUS2 GPIO configuartion and assignment.

F1: SMBA PB12 SCL PB10 SDA PB11 L1: SMBA PB12 SCL PB10 SDA PB11 F2/F4L SMBA PB12 PF2 PH6 SCL PB10 PF1 PH4 SDA PB11 PF0 PH5

Referenced by Stm32I2cBus2Init(), and Stm32I2cBus2Recover().

#define I2CBUS2_SCL_PIN   10

Referenced by Stm32I2cBus2Init(), and Stm32I2cBus2Recover().

#define I2CBUS2_SDA_PORT   NUTGPIO_PORTB

Referenced by Stm32I2cBus2Init(), and Stm32I2cBus2Recover().

#define I2CBUS2_SDA_PIN   11

Referenced by Stm32I2cBus2Init(), and Stm32I2cBus2Recover().

#define I2CBUS2_SMBA_PORT   NUTGPIO_PORTB

Referenced by Stm32I2cBus2Init().

#define I2CBUS2_SMBA_PIN   11

Referenced by Stm32I2cBus2Init().

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Function Documentation

int Stm32I2cBus2Recover

(

void

)

References GPIO_CFG_MULTIDRIVE, GPIO_CFG_OUTPUT, GpioPinConfigSet(), GpioPinSetHigh, GpioPinSetLow, I2CBUS2_SCL_PIN, I2CBUS2_SCL_PORT, I2CBUS2_SDA_PIN, I2CBUS2_SDA_PORT, and NutMicroDelay().

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int Stm32I2cBus2Init

(

void

)

Processor specific Hardware Initiliaization.

References DISABLE, DMA_Disable(), DMA_Init(), ENABLE, GPIO_AF_I2C2, GPIO_CFG_MULTIDRIVE, GPIO_CFG_OUTPUT, GPIO_PinAFConfig(), GpioPinConfigSet(), I2C2_DMA_CHANNEL_RX, I2C2_DMA_CHANNEL_TX, I2C2_ER_IRQn, I2C2_EV_IRQn, I2CBUS2_SCL_PIN, I2CBUS2_SCL_PORT, I2CBUS2_SDA_PIN, I2CBUS2_SDA_PORT, I2CBUS2_SMBA_PIN, I2CBUS2_SMBA_PORT, NVIC_SetPriority(), NVIC_SetPriorityGrouping(), RCC_APB1Periph_I2C2, RCC_APB1PeriphClockCmd(), and RCC_APB1PeriphResetCmd().

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Variable Documentation

NUTTWIBUS Stm32TwiBus_2

Initial value:

 {
    I2C2_BASE,              
   &sig_TWI2_EV,            
   &sig_TWI2_ER,            
    NULL,                   
    NULL,                   




    0,
    0,

    Stm32I2cBus2Init,       
    Stm32I2cBus2Recover,    
}

TWI/I2C bus structure.