AnsweredAssumed Answered

Problem in USB interface

Question asked by yusup khan on Jul 10, 2014
Latest reply on Jul 14, 2014 by Adrian Cano

I am using MKL46Z256VLL4 micro controller for my thermal printer project.

Specifications of printer card:

  • • Main controller – MKL46Z256VLL4
  • • Supporting chipsets
    • – DRV8834
    • – TLV70233
  • • External connectivity Interfaces
    • – Universal Asynchronous Receiver/Transmitter (UART)
    • – Universal Serial Bus (USB)

UART interface:

After flashing printer program, the uart interface detected as COM PORT in device manager and I have removed p&e micro usb multilink and uart interface. Then I reconnected uart interface only, it is also detecting as COM PORT. Also I can able to send data to printer through UART.

Problem in USB interface:

After flashing printer program, the usb interface detected as COM PORT in device manager. Then I have removed p&e micro usb multilink and usb interface. Then I reconnected usb interface only, but it is showing usb device not recognized. After connecting p&e micro usb multilink with that, then only it is detecting as COM PORT. So whenever I am using usb interface for printer always p&e micro usb multilink also has to be connect.

Can anyone help me after flashing program without p&e micro usb multilink, how I should send data to printer through USB?

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