- #Usb cdc acm driver example how to#
- #Usb cdc acm driver example install#
- #Usb cdc acm driver example generator#
- #Usb cdc acm driver example code#
Both can be individually configured to work as host or device at any given time. Summary The Zynq® UltraScale+™ MPSoC USB 3.0 controller consists of two independent dual-role device (DRD) controllers. Designed for ZCU102 Rev1.0 and RevB/C/D Prod silicon Boards Designed for ZCU102 Rev1.0 and RevB/C/D BoardsĢ.
#Usb cdc acm driver example how to#
Finally we will demonstrate how to use the USB CDC interface with the standard library functions like printf().2.If no, setting breakpoints in the interrupt handler and other functions on that path would help figuring out why the control never reaches USBD_LL_DataOutStage. if VCP_read() never returns, the first thing would be to check if USB_LL_DataOutStage is ever called. Use the “Show functions referencing this” and “Show functions calling this” to reveal the path from the interrupt handler to the DataOut field: If the USB functionality is not working, the data path could help pinpoint the problem.Navigate to the structure definition and add the DataOut field to CodeMap:.Right-click and select “Find all references” to find that the function is specified as a field in the USBD_ClassTypedef structure: Double-click on USBD_CDC_DataOut and VisualGDB will open the function in the code.This will reveal the USBD_CDC_DataOut function:
![usb cdc acm driver example usb cdc acm driver example](http://paldan.altervista.org/wp-content/uploads/2017/08/get_line_coding.png)
#Usb cdc acm driver example code#
Right-click on VCP_Read in Code Map and select “Show called functions”, then right-click on USB_CDC_ReceivePacket and select “Show referenced data”.Right-click on VCP_read() and select “Show on Code Map”: Now we will use the Code Map feature to quickly visualize the functions involved in receiving the data over USB.You can also set breakpoints, step and inspect variable values like when debugging normal programs: See how the ‘you typed’ lines are sent by the device. Open the raw terminal and type something there. Build your project and press F5 to start debugging.Set the mode to ‘text only and enable character echoing: Go to VisualGDB Project Properties and enable the raw terminal on the device COM port. Take a note of the COM port number assigned to the device:.If the device is still not recognized, try explicitly installing the ST driver for the “USB composite device” that is the parent for both virtual ComPort devices in the “Devices by connection” mode:
#Usb cdc acm driver example install#
Download and install the STM32 VCP drivers to get Windows to recognize your device.
![usb cdc acm driver example usb cdc acm driver example](https://www.keil.com/pack/doc/mw/USB/html/usbh_cdc_example_proj_window.png)
Connect your board using both USB sockets.Build it by pressing Ctrl-Shift-B: If you want to modify the PLL values now, simply edit the SystemClock_Config() function. Press ‘Test settings’ to verify the connection to Connect yourīoard and press ‘Detect’ to have your ST-Link interfaceĭetected. Select OpenOCD on the debug method page.
#Usb cdc acm driver example generator#
You can find the values by running the STM32CubeMX code generator or looking up the ST samples.