Serial Wire Debug (SWD) functions. More...

#include <stdint.h>
#include <stdbool.h>
#include "libjaylink.h"
#include "libjaylink-internal.h"

Functions
int	jaylink_swd_io (struct jaylink_device_handle devh, const uint8_t direction, const uint8_t out, uint8_t in, uint16_t length)
	Perform a SWD I/O operation. More...

Detailed Description

Serial Wire Debug (SWD) functions.

Function Documentation

int jaylink_swd_io	(	struct jaylink_device_handle *	devh,
		const uint8_t *	direction,
		const uint8_t *	out,
		uint8_t *	in,
		uint16_t	length
	)

Perform a SWD I/O operation.

Note: This function must only be used if the JAYLINK_TIF_SWD interface is available and selected.

Parameters

[in,out]	devh	Device handle.
[in]	direction	Buffer to read the transfer direction from.
[in]	out	Buffer to read host-to-target data from.
[out]	in	Buffer to store target-to-host data on success. Its content is undefined on failure. The buffer must be large enough to contain at least the specified number of bits to transfer.
[in]	length	Total number of bits to transfer from host to target and vice versa.

Return values

JAYLINK_OK	Success.
JAYLINK_ERR_ARG	Invalid arguments.
JAYLINK_ERR_TIMEOUT	A timeout occurred.
JAYLINK_ERR_IO	Input/output error.
JAYLINK_ERR_DEV_NO_MEMORY	Not enough memory on the device to perform the operation.
JAYLINK_ERR_DEV	Unspecified device error.
JAYLINK_ERR	Other error conditions.