alt_srf08.c File Reference

Basic library for SRF08 telemeter. More...

#include "mcu_periph/i2c.h"
#include "alt_srf08.h"
#include "mcu_periph/uart.h"
#include "pprzlink/messages.h"
#include "subsystems/datalink/downlink.h"
#include "led.h"

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Macros
#define	SRF08_I2C_DEV   i2c0

Functions
void	srf08_init (void)
void	srf08_initiate_ranging (void)
void	srf08_receive (void)
	Ask the value to the device. More...
void	srf08_read (void)
	Read values on the bus. More...
void	srf08_copy (void)
	Copy the I2C buffer. More...
void	srf08_ping ()
uint32_t	srf08_read_register (uint8_t srf08_register)
void	srf08_event (void)

Variables
bool	srf08_received
bool	srf08_got
struct i2c_transaction	srf_trans
uint16_t	srf08_range

Detailed Description

Basic library for SRF08 telemeter.

Definition in file alt_srf08.c.

Macro Definition Documentation

#define SRF08_I2C_DEV   i2c0

Definition at line 39 of file alt_srf08.c.

Referenced by srf08_init(), srf08_initiate_ranging(), srf08_read(), srf08_read_register(), and srf08_receive().

Function Documentation

void srf08_copy

(

void

)

Copy the I2C buffer.

Definition at line 93 of file alt_srf08.c.

References i2c_transaction::buf, srf08_range, and srf_trans.

Referenced by srf08_event().

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void srf08_event

(

void

)

Handling of data sent by the device (initiated by srf08_receive()

Definition at line 139 of file alt_srf08.c.

References DefaultChannel, DefaultDevice, I2CTransSuccess, srf08_copy(), srf08_got, srf08_range, srf08_read(), srf08_received, srf_trans, and i2c_transaction::status.

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void srf08_init

(

void

)

Setting the gain to the minimun value (to avoid echos ?)

Definition at line 50 of file alt_srf08.c.

References i2c_transaction::buf, i2c_transmit(), srf08_got, SRF08_I2C_DEV, SRF08_MIN_GAIN, srf08_received, SRF08_SET_GAIN, SRF08_UNIT_0, and srf_trans.

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void srf08_initiate_ranging

(

void

)

Definition at line 68 of file alt_srf08.c.

References i2c_transaction::buf, i2c_transmit(), LED_ON, SRF08_CENTIMETERS, SRF08_COMMAND, SRF08_I2C_DEV, SRF08_UNIT_0, and srf_trans.

Referenced by srf08_ping().

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void srf08_ping

(

void

)

Definition at line 98 of file alt_srf08.c.

References I2CTransSuccess, srf08_initiate_ranging(), srf08_receive(), srf_trans, and i2c_transaction::status.

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void srf08_read

(

void

)

Read values on the bus.

Definition at line 86 of file alt_srf08.c.

References i2c_receive(), srf08_got, SRF08_I2C_DEV, SRF08_UNIT_0, and srf_trans.

Referenced by srf08_event().

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uint32_t srf08_read_register

(

uint8_t

srf08_register

)

Definition at line 107 of file alt_srf08.c.

References i2c_transaction::buf, i2c_transceive(), SRF08_I2C_DEV, SRF08_UNIT_0, and srf_trans.

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void srf08_receive

(

void

)

Ask the value to the device.

Definition at line 77 of file alt_srf08.c.

References i2c_transaction::buf, i2c_transmit(), LED_OFF, SRF08_ECHO_1, SRF08_I2C_DEV, srf08_received, SRF08_UNIT_0, and srf_trans.

Referenced by srf08_ping().

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Variable Documentation

bool srf08_got

Definition at line 43 of file alt_srf08.c.

Referenced by srf08_event(), srf08_init(), and srf08_read().

uint16_t srf08_range

Definition at line 45 of file alt_srf08.c.

Referenced by srf08_copy(), and srf08_event().

bool srf08_received

Definition at line 43 of file alt_srf08.c.

Referenced by srf08_event(), srf08_init(), and srf08_receive().

struct i2c_transaction srf_trans

Definition at line 44 of file alt_srf08.c.

Referenced by srf08_copy(), srf08_event(), srf08_init(), srf08_initiate_ranging(), srf08_ping(), srf08_read(), srf08_read_register(), and srf08_receive().