CMSIS-DAP Initialization

CMSIS-DAP Hardware I/O and LED Pins are initialized with the function DAP_SETUP. More...

Functions
static __inline void	DAP_SETUP (void)
	Setup of the Debug Unit I/O pins and LEDs (called when Debug Unit is initialized). More...
static __inline uint8_t	RESET_TARGET (void)
	Reset Target Device with custom specific I/O pin or command sequence. More...

Description

CMSIS-DAP Hardware I/O and LED Pins are initialized with the function DAP_SETUP.

Function Documentation

static __inline void DAP_SETUP ( void  )

static

Setup of the Debug Unit I/O pins and LEDs (called when Debug Unit is initialized).

This function performs the initialization of the CMSIS-DAP Hardware I/O Pins and the Status LEDs. In detail the operation of Hardware I/O and LED pins are enabled and set:

• I/O clock system enabled.
• all I/O pins: input buffer enabled, output pins are set to HighZ mode.
• for nTRST, nRESET a weak pull-up (if available) is enabled.
• LED output pins are enabled and LEDs are turned off.

static __inline uint8_t RESET_TARGET ( void  )

static

Reset Target Device with custom specific I/O pin or command sequence.

This function allows the optional implementation of a device specific reset sequence. It is called when the command DAP_ResetTarget and is for example required when a device needs a time-critical unlock sequence that enables the debug port.

Returns

0 = no device specific reset sequence is implemented.
1 = a device specific reset sequence is implemented.