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Original question:

CCS/MSP430F5308: Example code to develop USB application

CCS/MSP430F5308: MSP430F5508 USB not detected

satya kommula
Prodigy 30 points
Part Number: MSP430F5308
Other Parts Discussed in Thread: MSP430F5508

Tool/software: Code Composer Studio

Hi,

We designed a board based on MSP430f5508 micro controller. we use USB in our design to talk to the Host PC. USB device is not detected by the host.

We ran you sample code co_simple_send as well from usb developer package. 

Can you please guide us to resolve this issue ?

Thanks

Satya

  • 0
    TI__Expert 6760 points

    Hello Satya,

    A great resource that you can use to verify whether your board has been laid out correctly is in Figure 8 of document, SLAA457b.pdf.  If you have already followed the diagram listed in Figure 8 to design your board then can you give me more information on what error you are seeing, if any, on the host side when you connect up the device side USB cable?

    You can also verify that your XT2 crystal is working properly and if it is then maybe try setting it manually by following the procedure listed in section 2.1.9 in the Programmers_Guide_MSP430_USB.pdf document.  Also which version of the MSP430USBDevelopersPackage are you using?  You can find the version number listed in the bottom of one of the .c files in your c0_simpleSend example.

    Regards,

    Arthi

  • 0
    Guru 34033 points
    You can check if your hardware is OK, by USB BSL. If device is mass erased and XT2 is 4/8/12/24 MHz than device after power up will be enumerated as HID.
  • 0 in reply to zrno soli
    Prodigy 30 points

    Diode Specifications: Diode Schottky 40V 200mA Surface Mount SOD-80 MiniMELF

    Crystal Specifications: 4MHz ±30ppm Crystal 30pF 130 Ohms HC-49/US

    The crystal connected to XT2IN and XT2OUT pins.

    Except PUR connection, remaining all the connections we used in the design. Please find the below schematic for your reference.

  • 0 in reply to Arthi Bhat1
    Prodigy 30 points

    Diode Specifications: Diode Schottky 40V 200mA Surface Mount SOD-80 MiniMELF

    Crystal Specifications: 4MHz ±30ppm Crystal 30pF 130 Ohms HC-49/US

    The crystal connected to XT2IN and XT2OUT pins.

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