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startup_stm32f4xx.s VS startup_stm32f4xx.c

Question asked by dice on Jul 20, 2013
Latest reply on Jul 20, 2013 by dice
Hello everybody.

I am trying to implement the Audio_playback_and_record project from the STM32F4-DISCOVERY board on CoIDE. I have managed to do so but the only way it would work is by flashing the processor using MDK_Keil first, then flash it again with CoFLASH. Whenever I reset the board, it still works; however, when I unplug the board then plug it back I cannot hear any sound. The Audio Codec gets initiated but it seems like it can fetch the audio file from the internal flash.
My question is: is there something that startup_stm32f4xx.s (from MDK-Keil) does that startup_stm32f4xx.c (CoIDE) does not do?

Thank you in advance for you replies!