File list (Check if you may need any files):
HyperTerminal_Interrupt
.......................\main.c
.......................\readme.txt
.......................\stm32l1xx_conf.h
.......................\stm32l1xx_it.c
.......................\stm32l1xx_it.h
.......................\system_stm32l1xx.c
Printf
......\main.c
......\readme.txt
......\stm32l1xx_conf.h
......\stm32l1xx_it.c
......\stm32l1xx_it.h
......\system_stm32l1xx.c
USART_TwoBoards
...............\DataExchangeDMA
...............\...............\main.c
...............\...............\main.h
...............\...............\readme.txt
...............\...............\stm32l1xx_conf.h
...............\...............\stm32l1xx_it.c
...............\...............\stm32l1xx_it.h
...............\...............\system_stm32l1xx.c
...............\DataExchangeInterrupt
...............\.....................\main.c
...............\.....................\main.h
...............\.....................\readme.txt
...............\.....................\stm32l1xx_conf.h
...............\.....................\stm32l1xx_it.c
...............\.....................\stm32l1xx_it.h
...............\.....................\system_stm32l1xx.c