Development routines, official, English, examples are quite complete.It's hard to find an example program.Just for learning

STM32F4-Discovery_FW_V1.1.0
STM32F4-Discovery_FW_V1.1.0\Libraries
STM32F4-Discovery_FW_V1.1.0\Libraries\CMSIS
STM32F4-Discovery_FW_V1.1.0\Libraries\CMSIS\CMSIS END USER LICENCE AGREEMENT.pdf
STM32F4-Discovery_FW_V1.1.0\Libraries\CMSIS\Documentation
STM32F4-Discovery_FW_V1.1.0\Libraries\CMSIS\Documentation\CMSIS-SVD_Schema_1_0.xsd
STM32F4-Discovery_FW_V1.1.0\Libraries\CMSIS\Documentation\CMSIS_CM4_SIMD.htm
STM32F4-Discovery_FW_V1.1.0\Libraries\CMSIS\Documentation\CMSIS_Core.htm
STM32F4-Discovery_FW_V1.1.0\Libraries\CMSIS\Documentation\CMSIS_DebugSupport.htm
STM32F4-Discovery_FW_V1.1.0\Libraries\CMSIS\Documentation\CMSIS_History.htm
STM32F4-Discovery_FW_V1.1.0\Libraries\CMSIS\Documentation\CMSIS_Logo_Final.jpg
STM32F4-Discovery_FW_V1.1.0\Libraries\CMSIS\Documentation\CMSIS_System_View_Description.htm
STM32F4-Discovery_FW_V1.1.0\Libraries\CMSIS\Documentation\DSP_Lib
STM32F4-Discovery_FW_V1.1.0\Libraries\CMSIS\Documentation\DSP_Lib\html
STM32F4-Discovery_FW_V1.1.0\Libraries\CMSIS\Documentation\DSP_Lib\html\annotated.html
STM32F4-Discovery_FW_V1.1.0\Libraries\CMSIS\Documentation\DSP_Lib\html\arm_class_marks_example_f32_8c-example.html
STM32F4-Discovery_FW_V1.1.0\Libraries\CMSIS\Documentation\DSP_Lib\html\arm_convolution_example_f32_8c-example.html
STM32F4-Discovery_FW_V1.1.0\Libraries\CMSIS\Documentation\DSP_Lib\html\arm_dotproduct_example_f32_8c-example.html
STM32F4-Discovery_FW_V1.1.0\Libraries\CMSIS\Documentation\DSP_Lib\html\arm_fft_bin_example_f32_8c-example.html
STM32F4-Discovery_FW_V1.1.0\Libraries\CMSIS\Documentation\DSP_Lib\html\arm_fir_example_f32_8c-example.html
STM32F4-Discovery_FW_V1.1.0\Libraries\CMSIS\Documentation\DSP_Lib\html\arm_graphic_equalizer_example_q31_8c-example.html
STM32F4-Discovery_FW_V1.1.0\Libraries\CMSIS\Documentation\DSP_Lib\html\arm_linear_interp_example_f32_8c-example.html
STM32F4-Discovery_FW_V1.1.0\Libraries\CMSIS\Documentation\DSP_Lib\html\arm_matrix_example_f32_8c-example.html
STM32F4-Discovery_FW_V1.1.0\Libraries\CMSIS\Documentation\DSP_Lib\html\arm_signal_converge_example_f32_8c-example.html
STM32F4-Discovery_FW_V1.1.0\Libraries\CMSIS\Documentation\DSP_Lib\html\arm_sin_cos_example_f32_8c-example.html
STM32F4-Discovery_FW_V1.1.0\Libraries\CMSIS\Documentation\DSP_Lib\html\arm_variance_example_f32_8c-example.html
STM32F4-Discovery_FW_V1.1.0\Libraries\CMSIS\Documentation\DSP_Lib\html\arm__abs__f32_8c.html
STM32F4-Discovery_FW_V1.1.0\Libraries\CMSIS\Documentation\DSP_Lib\html\arm__abs__f32_8c_source.html
STM32F4-Discovery_FW_V1.1.0\Libraries\CMSIS\Documentation\DSP_Lib\html\arm__abs__q15_8c.html
STM32F4-Discovery_FW_V1.1.0\Libraries\CMSIS\Documentation\DSP_Lib\html\arm__abs__q15_8c_source.html
STM32F4-Discovery_FW_V1.1.0\Libraries\CMSIS\Documentation\DSP_Lib\html\arm__abs__q31_8c.html
STM32F4-Discovery_FW_V1.1.0\Libraries\CMSIS\Documentation\DSP_Lib\html\arm__abs__q31_8c_source.html
STM32F4-Discovery_FW_V1.1.0\Libraries\CMSIS\Documentation\DSP_Lib\html\arm__abs__q7_8c.html
STM32F4-Discovery_FW_V1.1.0\Libraries\CMSIS\Documentation\DSP_Lib\html\arm__abs__q7_8c_source.html
STM32F4-Discovery_FW_V1.1.0\Libraries\CMSIS\Documentation\DSP_Lib\html\arm__add__f32_8c.html
STM32F4-Discovery_FW_V1.1.0\Libraries\CMSIS\Documentation\DSP_Lib\html\arm__add__f32_8c_source.html
STM32F4-Discovery_FW_V1.1.0\Libraries\CMSIS\Documentation\DSP_Lib\html\arm__add__q15_8c.html
STM32F4-Discovery_FW_V1.1.0\Libraries\CMSIS\Documentation\DSP_Lib\html\arm__add__q15_8c_source.html
STM32F4-Discovery_FW_V1.1.0\Libraries\CMSIS\Documentation\DSP_Lib\html\arm__add__q31_8c.html
STM32F4-Discovery_FW_V1.1.0\Libraries\CMSIS\Documentation\DSP_Lib\html\arm__add__q31_8c_source.html
STM32F4-Discovery_FW_V1.1.0\Libraries\CMSIS\Documentation\DSP_Lib\html\arm__add__q7_8c.html
STM32F4-Discovery_FW_V1.1.0\Libraries\CMSIS\Documentation\DSP_Lib\html\arm__add__q7_8c_source.html
STM32F4-Discovery_FW_V1.1.0\Libraries\CMSIS\Documentation\DSP_Lib\html\arm__biquad__cascade__df1__32x64__init__q31_8c.html
STM32F4-Discovery_FW_V1.1.0\Libraries\CMSIS\Documentation\DSP_Lib\html\arm__biquad__cascade__df1__32x64__init__q31_8c_source.html
STM32F4-Discovery_FW_V1.1.0\Libraries\CMSIS\Documentation\DSP_Lib\html\arm__biquad__cascade__df1__32x64__q31_8c.html
STM32F4-Discovery_FW_V1.1.0\Libraries\CMSIS\Documentation\DSP_Lib\html\arm__biquad__cascade__df1__32x64__q31_8c_source.html
STM32F4-Discovery_FW_V1.1.0\Libraries\CMSIS\Documentation\DSP_Lib\html\arm__biquad__cascade__df1__f32_8c.html
STM32F4-Discovery_FW_V1.1.0\Libraries\CMSIS\Documentation\DSP_Lib\html\arm__biquad__cascade__df1__f32_8c_source.html
STM32F4-Discovery_FW_V1.1.0\Libraries\CMSIS\Documentation\DSP_Lib\html\arm__biquad__cascade__df1__fast__q15_8c.html
STM32F4-Discovery_FW_V1.1.0\Libraries\CMSIS\Documentation\DSP_Lib\html\arm__biquad__cascade__df1__fast__q15_8c_source.html
STM32F4-Discovery_FW_V1.1.0\Libraries\CMSIS\Documentation\DSP_Lib\html\arm__biquad__cascade__df1__fast__q31_8c.html
STM32F4-Discovery_FW_V1.1.0\Libraries\CMSIS\Documentation\DSP_Lib\html\arm__biquad__cascade__df1__fast__q31_8c_source.html
STM32F4-Discovery_FW_V1.1.0\Libraries\CMSIS\Documentation\DSP_Lib\html\arm__biquad__cascade__df1__init__f32_8c.html
STM32F4-Discovery_FW_V1.1.0\Libraries\CMSIS\Documentation\DSP_Lib\html\arm__biquad__cascade__df1__init__f32_8c_source.html
STM32F4-Discovery_FW_V1.1.0\Libraries\CMSIS\Documentation\DSP_Lib\html\arm__biquad__cascade__df1__init__q15_8c.html
STM32F4-Discovery_FW_V1.1.0\Libraries\CMSIS\Documentation\DSP_Lib\html\arm__biquad__cascade__df1__init__q15_8c_source.html
STM32F4-Discovery_FW_V1.1.0\Libraries\CMSIS\Documentation\DSP_Lib\html\arm__biquad__cascade__df1__init__q31_8c.html
STM32F4-Discovery_FW_V1.1.0\Libraries\CMSIS\Documentation\DSP_Lib\html\arm__biquad__cascade__df1__init__q31_8c_source.html
STM32F4-Discovery_FW_V1.1.0\Libraries\CMSIS\Documentation\DSP_Lib\html\arm__biquad__cascade__df1__q15_8c.html
STM32F4-Discovery_FW_V1.1.0\Libraries\CMSIS\Documentation\DSP_Lib\html\arm__biquad__cascade__df1__q15_8c_source.html
STM32F4-Discovery_FW_V1.1.0\Libraries\CMSIS\Documentation\DSP_Lib\html\arm__biquad__cascade__df1__q31_8c.html
STM32F4-Discovery_FW_V1.1.0\Libraries\CMSIS\Documentation\DSP_Lib\html\arm__biquad__cascade__df1__q31_8c_source.html
STM32F4-Discovery_FW_V1.1.0\Libraries\CMSIS\Documentation\DSP_Lib\html\arm__biquad__cascade__df2_t__f32_8c.html
STM32F4-Discovery_FW_V1.1.0\Libraries\CMSIS\Documentation\DSP_Lib\html\arm__biquad__cascade__df2_t__f32_8c_source.html
STM32F4-Discovery_FW_V1.1.0\Libraries\CMSIS\Documentation\DSP_Lib\html\arm__biquad__cascade__df2_t__init__f32_8c.html
STM32F4-Discovery_FW_V1.1.0\Libraries\CMSIS\Documentation\DSP_Lib\html\arm__biquad__cascade__df2_t__init__f32_8c_source.html
STM32F4-Discovery_FW_V1.1.0\Libraries\CMSIS\Documentation\DSP_Lib\html\arm__cfft__radix4__f32_8c.html
STM32F4-Discovery_FW_V1.1.0\Libraries\CMSIS\Documentation\DSP_Lib\html\arm__cfft__radix4__f32_8c_source.html
STM32F4-Discovery_FW_V1.1.0\Libraries\CMSIS\Documentation\DSP_Lib\html\arm__cfft__radix4__init__f32_8c.html
STM32F4-Discovery_FW_V1.1.0\Libraries\CMSIS\Documentation\DSP_Lib\html\arm__cfft__radix4__init__f32_8c_source.html
STM32F4-Discovery_FW_V1.1.0\Libraries\CMSIS\Documentation\DSP_Lib\html\arm__cfft__radix4__init__q15_8c.html
STM32F4-Discovery_FW_V1.1.0\Libraries\CMSIS\Documentation\DSP_Lib\html\arm__cfft__radix4__init__q15_8c_source.html
STM32F4-Discovery_FW_V1.1.0\Libraries\CMSIS\Documentation\DSP_Lib\html\arm__cfft__radix4__init__q31_8c.html
STM32F4-Discovery_FW_V1.1.0\Libraries\CMSIS\Documentation\DSP_Lib\html\arm__cfft__radix4__init__q31_8c_source.html
STM32F4-Discovery_FW_V1.1.0\Libraries\CMSIS\Documentation\DSP_Lib\html\arm__cfft__radix4__q15_8c.html
STM32F4-Discovery_FW_V1.1.0\Libraries\CMSIS\Documentation\DSP_Lib\html\arm__cfft__radix4__q15_8c_source.html
STM32F4-Discovery_FW_V1.1.0\Libraries\CMSIS\Documentation\DSP_Lib\html\arm__cfft__radix4__q31_8c.html
STM32F4-Discovery_FW_V1.1.0\Libraries\CMSIS\Documentation\DSP_Lib\html\arm__cfft__radix4__q31_8c_source.html
STM32F4-Discovery_FW_V1.1.0\Libraries\CMSIS\Documentation\DSP_Lib\html\arm__class__marks__example__f32_8c.html
STM32F4-Discovery_FW_V1.1.0\Libraries\CMSIS\Documentation\DSP_Lib\html\arm__class__marks__example__f32_8c_source.html
STM32F4-Discovery_FW_V1.1.0\Libraries\CMSIS\Documentation\DSP_Lib\html\arm__cmplx__conj__f32_8c.html
STM32F4-Discovery_FW_V1.1.0\Libraries\CMSIS\Documentation\DSP_Lib\html\arm__cmplx__conj__f32_8c_source.html
STM32F4-Discovery_FW_V1.1.0\Libraries\CMSIS\Documentation\DSP_Lib\html\arm__cmplx__conj__q15_8c.html
STM32F4-Discovery_FW_V1.1.0\Libraries\CMSIS\Documentation\DSP_Lib\html\arm__cmplx__conj__q15_8c_source.html
STM32F4-Discovery_FW_V1.1.0\Libraries\CMSIS\Documentation\DSP_Lib\html\arm__cmplx__conj__q31_8c.html
STM32F4-Discovery_FW_V1.1.0\Libraries\CMSIS\Documentation\DSP_Lib\html\arm__cmplx__conj__q31_8c_source.html
STM32F4-Discovery_FW_V1.1.0\Libraries\CMSIS\Documentation\DSP_Lib\html\arm__cmplx__dot__prod__f32_8c.html
STM32F4-Discovery_FW_V1.1.0\Libraries\CMSIS\Documentation\DSP_Lib\html\arm__cmplx__dot__prod__f32_8c_source.html
STM32F4-Discovery_FW_V1.1.0\Libraries\CMSIS\Documentation\DSP_Lib\html\arm__cmplx__dot__prod__q15_8c.html
STM32F4-Discovery_FW_V1.1.0\Libraries\CMSIS\Documentation\DSP_Lib\html\arm__cmplx__dot__prod__q15_8c_source.html
STM32F4-Discovery_FW_V1.1.0\Libraries\CMSIS\Documentation\DSP_Lib\html\arm__cmplx__dot__prod__q31_8c.html
STM32F4-Discovery_FW_V1.1.0\Libraries\CMSIS\Documentation\DSP_Lib\html\arm__cmplx__dot__prod__q31_8c_source.html
STM32F4-Discovery_FW_V1.1.0\Libraries\CMSIS\Documentation\DSP_Lib\html\arm__cmplx__mag__f32_8c.html
STM32F4-Discovery_FW_V1.1.0\Libraries\CMSIS\Documentation\DSP_Lib\html\arm__cmplx__mag__f32_8c_source.html
STM32F4-Discovery_FW_V1.1.0\Libraries\CMSIS\Documentation\DSP_Lib\html\arm__cmplx__mag__q15_8c.html
STM32F4-Discovery_FW_V1.1.0\Libraries\CMSIS\Documentation\DSP_Lib\html\arm__cmplx__mag__q15_8c_source.html
STM32F4-Discovery_FW_V1.1.0\Libraries\CMSIS\Documentation\DSP_Lib\html\arm__cmplx__mag__q31_8c.html
STM32F4-Discovery_FW_V1.1.0\Libraries\CMSIS\Documentation\DSP_Lib\html\arm__cmplx__mag__q31_8c_source.html
STM32F4-Discovery_FW_V1.1.0\Libraries\CMSIS\Documentation\DSP_Lib\html\arm__cmplx__mag__squared__f32_8c.html
STM32F4-Discovery_FW_V1.1.0\Libraries\CMSIS\Documentation\DSP_Lib\html\arm__cmplx__mag__squared__f32_8c_source.html

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