• USB Suspend state
    Hi All, I develop the USB CDC firmware(Modify the sample code from ST) using STR912FAW44 and keil MDK. The Adum 4160 is added to implement the USB isolation. The pull up 1.5K resistor is tied to...
  • RTX USB Composite Device HID and MSC
    Hardware: Keil MCBSTM32F400 Software: Keil MDK V4.53, V4.52, V4.51 V4.50 I have created code to run USB Composite Device HID and MSC-SDIO with out RTX every thing is works fine. When I...
  • How to suspend the CMSIS RTOS (not RTX)
    I am using the CMSIS RTOS (not RTX) and this RTOS seems to be interfering with a time critical process I have for programming a FPGA so I need to suspend this RTOs until I am finished doing that. ...
  • STM32F4 USB composite HID+MSC
    Hi all! Does anyone have an experience with making multi-interface (multi-class) USB with STM32F4 device? I am using STM32F4-discovery kit and usb library STM32_USB-Host-Device_Lib_V2.1.0. I have...
  • Interface Association Descriptor for MSC and HID
    Hi, Could someone help me to create an IAD for MSC and HID? I have a reference on CDC and MSC for IAD and I do just the same on it but unfortunately it didn't work. When I go to the device manager...