UART_term.h File Reference

UART terminal header. More...

#include "sarmfsw.h"

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Data Structures
struct	sUARTbuffer
	Buffer structure for UART message reception. More...

Macros
#define	STDREAM__UART_TX_IT   0
	Set to send to uart not using interrupts.

Functions
char	getBreakout_char (void)
	Get UART Rx breakout character.
void	setBreakout_char (const char breakout)
	Set a new breakout character.
FctERR	UART_Term_Init (UART_HandleTypeDef *const huart, const size_t len)
	Initialize UART terminal.
FctERR	UART_Term_Launch_It_Rx (UART_HandleTypeDef *const huart)
	Start UART SERIAL DEBUG Rx interruptions.
FctERR	UART_Term_Wait_Ready (const UART_HandleTypeDef *const huart)
	Waiting for UART global state to be ready for next transmission.
FctERR	UART_Term_Flush_RxBuf (const UART_HandleTypeDef *const huart)
	Clear buffer in used for SERIAL DEBUG.
FctERR	UART_Term_Send (UART_HandleTypeDef *const huart, const char *str, const size_t len)
	Sends string to UART.
FctERR	UART_Term_Message_Handler (const char *msg, const size_t len)
	Treat fully received message.
void	UART_Term_RxCpltCallback (UART_HandleTypeDef *const huart)
	UART Term Rx Transfer completed callback.
void	UART_Term_TxCpltCallback (UART_HandleTypeDef *const huart)
	UART Term Tx Transfer completed callback.

Variables
char	breakout_char
	breakout char (message complete)
UART_HandleTypeDef *	dbg_uart
	UART debug terminal instance.

Detailed Description

UART terminal header.

Author

SMFSW

Copyright

MIT (c) 2017-2026, SMFSW

Note

UART redirection is enabled when UART_REDIRECT symbol is defined at project level

define DBG_SERIAL at project level with an UART instance to send printf likes strings to UART

It is recommended to have interrupts enabled for UART instance (and is required when reception is needed)

Macro Definition Documentation

STDREAM__UART_TX_IT

#define STDREAM__UART_TX_IT   0

Set to send to uart not using interrupts.

Note

STDREAM__UART_TX_IT can be defined at project level to define if UART messages are sent in blocking/non blocking mode

Warning

Do not change this if intending to send messages inside interrupts!

Function Documentation

getBreakout_char()

char getBreakout_char ( void )

inline

Get UART Rx breakout character.

Returns

Breakout character

setBreakout_char()

void setBreakout_char ( const char breakout )

inline

Set a new breakout character.

Parameters

[in]

breakout

- new breakout character

UART_Term_Flush_RxBuf()

FctERR UART_Term_Flush_RxBuf

(

const UART_HandleTypeDef *const

huart

)

Clear buffer in used for SERIAL DEBUG.

Parameters

[in]

huart

- UART handle

Returns

FctERR - Error code

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UART_Term_Init()

FctERR UART_Term_Init	(	UART_HandleTypeDef *const	huart,
		const size_t	len )

Initialize UART terminal.

Parameters

[in]	huart	- UART handle
[in]	len	- buffer length

Returns

FctERR - Error code

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UART_Term_Launch_It_Rx()

FctERR UART_Term_Launch_It_Rx

(

UART_HandleTypeDef *const

huart

)

Start UART SERIAL DEBUG Rx interruptions.

Parameters

[in]

huart

- UART handle

Returns

FctERR - Error code

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UART_Term_Message_Handler()

FctERR UART_Term_Message_Handler	(	const char *	msg,
		const size_t	len )

Treat fully received message.

Weak Functions

This function is implemented as weak to be implemented in projects (weak one only prints & flushes the buffer)

Parameters

[in]	msg	- pointer to received message
[in]	len	- received message length

Returns

FctERR - Error code

UART_Term_RxCpltCallback()

void UART_Term_RxCpltCallback

(

UART_HandleTypeDef *const

huart

)

UART Term Rx Transfer completed callback.

Note

Can be used with callback registering CubeMX functionality

Warning

When not using callback registering CubeMX functionality, you may need to implement your own custom HAL_UART_RxCpltCallback weak HAL_UART_RxCpltCallback is defined in the library (handle for debug UART only), you may have to define your own when multiple UARTs are in use.

Parameters

[in,out]

huart

- UART handle

Note

Shall be called from HAL_UART_RxCpltCallback with proper UART instance

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UART_Term_Send()

FctERR UART_Term_Send	(	UART_HandleTypeDef *const	huart,
		const char *	str,
		const size_t	len )

Sends string to UART.

Parameters

[in]	huart	- UART handle
[in]	str	- pointer to string to send
[in]	len	- length of string

Returns

FctERR - Error code

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UART_Term_TxCpltCallback()

void UART_Term_TxCpltCallback

(

UART_HandleTypeDef *const

huart

)

UART Term Tx Transfer completed callback.

Note

Can be used with callback registering CubeMX functionality

Warning

When not using callback registering CubeMX functionality, you may need to implement your own custom HAL_UART_TxCpltCallback weak HAL_UART_TxCpltCallback is defined in the library (handle for debug UART only), you may have to define your own when multiple UARTs are in use.

Parameters

[in,out]

huart

- UART handle

Note

Shall be called from UART_Term_TxCpltCallback with proper UART instance

UART_Term_Wait_Ready()

FctERR UART_Term_Wait_Ready

(

const UART_HandleTypeDef *const

huart

)

Waiting for UART global state to be ready for next transmission.

Parameters

[in]

huart

- UART handle

Returns

FctERR - Error code

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Variable Documentation

breakout_char

char breakout_char

extern

breakout char (message complete)

Note

Default user breakout char set to '!' and '\r' is built-in default breakout char

dbg_uart

UART_HandleTypeDef* dbg_uart

extern

UART debug terminal instance.

UART debug terminal instance.