Due to this, i am unable to link my application with "STM32F4-Discovery_FW_V1.1.0\Utilities\STM32F4-Discovery\libPDMFilter_GCC.a". The following error is occuring when trying to link
error: ../audio_example.elf uses VFP register arguments, STM32F4-Discovery_FW_V1.1.0/Utilities/STM32F4-Discovery/libPDMFilter_GCC.a(pdm_filter.o) does not
I need libPDMFilter_GCC.a library built with -mfloat-abi=hard. Please let me know, how to get this library.