desig_common_all.c File Reference

#include <libopencm3/stm32/desig.h>

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Functions
void	desig_get_unique_id_as_string (char *string, unsigned int string_len)
	Read the full 96 bit unique identifier and return it as a zero-terminated string. More...
void	desig_get_unique_id_as_dfu (char *string)
	Generate the same serial number from the unique id registers as the DFU bootloader. More...

Function Documentation

desig_get_unique_id_as_dfu()

void desig_get_unique_id_as_dfu

(

char *

string

)

Generate the same serial number from the unique id registers as the DFU bootloader.

This document: http://www.usb.org/developers/docs/devclass_docs/usbmassbulk_10.pdf says that the serial number has to be at least 12 digits long and that the last 12 digits need to be unique. It also stipulates that the valid character set is that of upper-case hexadecimal digits. The onboard DFU bootloader produces a 12-digit serial based on the 96-bit unique ID. Show the serial with dfu-util -l while the MCU is in DFU mode.

See also

https://my.st.com/52d187b7 for the algorithim used.

Parameters

string

pointer to store serial in, must be at least 13 bytes

Definition at line 43 of file desig_common_all.c.

References desig_get_unique_id().

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desig_get_unique_id_as_string()

void desig_get_unique_id_as_string	(	char *	string,
		unsigned int	string_len
	)

Read the full 96 bit unique identifier and return it as a zero-terminated string.

Parameters

string	memory region to write the result to
string_len	the size of string in bytes

Definition at line 22 of file desig_common_all.c.

References desig_get_unique_id().

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