ITM Functions

Functions that access the ITM debug interface. More...

Collaboration diagram for ITM Functions:

Defines
#define	ITM_RXBUFFER_EMPTY   0x5AA55AA5
#define	ITM_RXBUFFER_EMPTY   0x5AA55AA5
Functions
__STATIC_INLINE uint32_t	ITM_SendChar (uint32_t ch)
	ITM Send Character.
__STATIC_INLINE int32_t	ITM_ReceiveChar (void)
	ITM Receive Character.
__STATIC_INLINE int32_t	ITM_CheckChar (void)
	ITM Check Character.
Variables
volatile int32_t	ITM_RxBuffer
volatile int32_t	ITM_RxBuffer

---

Detailed Description

Functions that access the ITM debug interface.

---

Define Documentation

#define ITM_RXBUFFER_EMPTY   0x5AA55AA5

Value identifying ITM_RxBuffer is ready for next character.

Referenced by ITM_CheckChar(), and ITM_ReceiveChar().

#define ITM_RXBUFFER_EMPTY   0x5AA55AA5

Value identifying ITM_RxBuffer is ready for next character.

---

Function Documentation

__STATIC_INLINE uint32_t ITM_SendChar

(

uint32_t

ch

)

ITM Send Character.

The function transmits a character via the ITM channel 0, and

• Just returns when no debugger is connected that has booked the output.
• Is blocking when a debugger is connected, but the previous character sent has not been transmitted.

Parameters:

[in]

ch

Character to transmit.

Returns:

Character to transmit.

References ITM, and ITM_TCR_ITMENA_Msk.

__STATIC_INLINE int32_t ITM_ReceiveChar

(

void

)

ITM Receive Character.

The function inputs a character via the external variable ITM_RxBuffer.

Returns:

Received character.

-1 No character pending.

References ITM_RxBuffer, and ITM_RXBUFFER_EMPTY.

__STATIC_INLINE int32_t ITM_CheckChar

(

void

)

ITM Check Character.

The function checks whether a character is pending for reading in the variable ITM_RxBuffer.

Returns:

0 No character available.

1 Character available.

References ITM_RXBUFFER_EMPTY.

---

Variable Documentation

volatile int32_t ITM_RxBuffer

External variable to receive characters.

Referenced by ITM_ReceiveChar().

volatile int32_t ITM_RxBuffer

External variable to receive characters.