diff --git a/ports/stm32f4xx/CMSIS/arm_cortexM0b_math.lib b/ports/stm32f4xx/CMSIS/arm_cortexM0b_math.lib deleted file mode 100644 index 5f6ebf82..00000000 Binary files a/ports/stm32f4xx/CMSIS/arm_cortexM0b_math.lib and /dev/null differ diff --git a/ports/stm32f4xx/CMSIS/arm_cortexM0l_math.lib b/ports/stm32f4xx/CMSIS/arm_cortexM0l_math.lib deleted file mode 100644 index 77f70750..00000000 Binary files a/ports/stm32f4xx/CMSIS/arm_cortexM0l_math.lib and /dev/null differ diff --git a/ports/stm32f4xx/CMSIS/arm_cortexM3b_math.lib b/ports/stm32f4xx/CMSIS/arm_cortexM3b_math.lib deleted file mode 100644 index bad33061..00000000 Binary files a/ports/stm32f4xx/CMSIS/arm_cortexM3b_math.lib and /dev/null differ diff --git a/ports/stm32f4xx/CMSIS/arm_cortexM3l_math.lib b/ports/stm32f4xx/CMSIS/arm_cortexM3l_math.lib deleted file mode 100644 index 1139c730..00000000 Binary files a/ports/stm32f4xx/CMSIS/arm_cortexM3l_math.lib and /dev/null differ diff --git a/ports/stm32f4xx/CMSIS/arm_cortexM4b_math.lib b/ports/stm32f4xx/CMSIS/arm_cortexM4b_math.lib deleted file mode 100644 index 36e9098c..00000000 Binary files a/ports/stm32f4xx/CMSIS/arm_cortexM4b_math.lib and /dev/null differ diff --git a/ports/stm32f4xx/CMSIS/arm_cortexM4bf_math.lib b/ports/stm32f4xx/CMSIS/arm_cortexM4bf_math.lib deleted file mode 100644 index 914e0d2d..00000000 Binary files a/ports/stm32f4xx/CMSIS/arm_cortexM4bf_math.lib and /dev/null differ diff --git a/ports/stm32f4xx/CMSIS/arm_cortexM4l_math.lib b/ports/stm32f4xx/CMSIS/arm_cortexM4l_math.lib deleted file mode 100644 index 7fb98ba7..00000000 Binary files a/ports/stm32f4xx/CMSIS/arm_cortexM4l_math.lib and /dev/null differ diff --git a/ports/stm32f4xx/CMSIS/arm_cortexM4lf_math.lib b/ports/stm32f4xx/CMSIS/arm_cortexM4lf_math.lib deleted file mode 100644 index f5ddea42..00000000 Binary files a/ports/stm32f4xx/CMSIS/arm_cortexM4lf_math.lib and /dev/null differ