I am working with TWR-K65F180M and using sdk 2.1. I want to use the board (using 8GB card on board) as a mass storage device, so that when I connect the board to PC using a micro USB cable the board should enumerate as a mass storage device.
I am working on usb_device_cdc_vcom example code given in the sdk 2.1. I connect the target board to PC and run the example code with default jumper settings. Now I open up the jumper J23 (open all four pins), connect 6-7 pins of J9 and connect 3.3V external power supply between J9 pin 2 and TP12.
The user guide says I should see echo on tera term and a device(Virtual com demo) on device manager but none of the two is working for me. I only see "USB device CDC virtual com demo" on tera term.
Kindly help me identify if there is any thing wrong with my settings or processor.
No, it is not working even with text file.
Somehow, usb_device_composite_cdc_msc_sdcard example is working with EHCI mode but not with the default KHCI mode.
In the Hyperterminal tools, or Tera Term tools whatever, if you transfer a text file, the contents of the file will be echoed on the tools.
Pls have a try