F37xUSBFlashDriverBootloader stm32f373 bootloader MCU: STM32F373CCT6, Cortex-M4@72MHz, 256KB Flash Memory, 32KB SRAM. Interface: USB Device (class: mass storage) IDE: Keil MDK (WIN7 x64) Compiler: ARMCC Debug Tool: JLink-V8 SWD Brief: Bootloader Version: V1.0.0, 2018/1/26, kyChu