main.c File Reference

MDBT42Q Click Example. More...

#include "board.h"
#include "log.h"
#include "mdbt42q.h"

Macros
#define	MESSAGE_CONTENT   "MDBT42Q Click board - demo example."
#define	DEVICE_NAME   "MDBT42Q Click"
#define	APP_BUFFER_SIZE   600
#define	PROCESS_BUFFER_SIZE   200
#define	READ_RESPONSE_TIMEOUT_MS   60000
#define	BT_TERMINAL_TIMEOUT_MS   60000
#define	BT_TERMINAL_MESSAGE_FREQ_MS   5000
#define	TERMINATION_CMD   "END"
#define	TERMINATION_RESPONSE   "Acknowledged, the connection will be terminated in a few seconds."
#define	TERMINATION_TIMEOUT   "Timeout, closing the connection in a few seconds."
#define	NEW_LINE_STRING   "\r\n"

Enumerations
enum	mdbt42q_app_state_t { MDBT42Q_POWER_UP = 1 , MDBT42Q_CONFIG_EXAMPLE , MDBT42Q_EXAMPLE }
	Example states. More...

Functions
void	application_init (void)
void	application_task (void)
int	main (void)

Detailed Description

MDBT42Q Click Example.

Description

This example demonstrates the use of MDBT42Q Click board by processing data from a connected BT device.

The demo application is composed of two sections :

Application Init

Initializes the driver and logger.

Application Task

Application task is split in few stages:

• MDBT42Q_POWER_UP: Powers up the device, performs a factory reset and reads system information.
• MDBT42Q_CONFIG_EXAMPLE: Sets the BT device name.
• MDBT42Q_EXAMPLE: Performs a BT terminal example by processing all data from a connected BT device and sending back an adequate response messages.

Additional Function

• static void mdbt42q_clear_app_buf ( void )
• static void mdbt42q_log_app_buf ( void )
• static err_t mdbt42q_process ( mdbt42q_t *ctx )
• static err_t mdbt42q_read_response ( mdbt42q_t *ctx )
• static err_t mdbt42q_power_up ( mdbt42q_t *ctx )
• static err_t mdbt42q_config_example ( mdbt42q_t *ctx )
• static err_t mdbt42q_example ( mdbt42q_t *ctx )

Note

We have used the Serial Bluetooth Terminal smartphone application for the test.

Author

Stefan Filipovic

Macro Definition Documentation

APP_BUFFER_SIZE

#define APP_BUFFER_SIZE   600

BT_TERMINAL_MESSAGE_FREQ_MS

#define BT_TERMINAL_MESSAGE_FREQ_MS   5000

BT_TERMINAL_TIMEOUT_MS

#define BT_TERMINAL_TIMEOUT_MS   60000

DEVICE_NAME

#define DEVICE_NAME   "MDBT42Q Click"

MESSAGE_CONTENT

#define MESSAGE_CONTENT   "MDBT42Q Click board - demo example."

NEW_LINE_STRING

#define NEW_LINE_STRING   "\r\n"

PROCESS_BUFFER_SIZE

#define PROCESS_BUFFER_SIZE   200

READ_RESPONSE_TIMEOUT_MS

#define READ_RESPONSE_TIMEOUT_MS   60000

TERMINATION_CMD

#define TERMINATION_CMD   "END"

TERMINATION_RESPONSE

#define TERMINATION_RESPONSE   "Acknowledged, the connection will be terminated in a few seconds."

TERMINATION_TIMEOUT

#define TERMINATION_TIMEOUT   "Timeout, closing the connection in a few seconds."

Enumeration Type Documentation

mdbt42q_app_state_t

enum mdbt42q_app_state_t

Example states.

Predefined enum values for application example state.

Enumerator
MDBT42Q_POWER_UP
MDBT42Q_CONFIG_EXAMPLE
MDBT42Q_EXAMPLE

Function Documentation

application_init()

void application_init

(

void

)

< Logger config object.

< Click config object.

Logger initialization. Default baud rate: 115200 Default log level: LOG_LEVEL_DEBUG

Note

If USB_UART_RX and USB_UART_TX are defined as HAL_PIN_NC, you will need to define them manually for log to work. See LOG_MAP_USB_UART macro definition for detailed explanation.

application_task()

void application_task

(

void

)

main()

int main

(

void

)