Where can I find a properly woking USB MASS STORAGE DEVICE code for TIVA C (TM4C123GH6PM)?

Hi Deni,

    Check the Tivaware for EK-LM4F232. I have that at "\ek-lm4f232\usb_dev_msc". Some modification may be needed with regards to project settings, if you want to use for TM4C123GH6PM.

-kel

Thanks for your reply Markel!

I tried it already, the problem is that the following line:

 ROM_GPIOPinConfigure(GPIO_PG4_USB0EPEN);

gives he following error:

usb_dev_msc.c(485): error:  #20: identifier "GPIO_PG4_USB0EPEN" is undefined

I think that the pin I need, is not on port G. I looked after USB0EPEN in pin_map.h and found that it can be one from:

GPIO_PC6_USB0EPEN 

GPIO_PD2_USB0EPEN

GPIO_PF4_USB0EPEN

The problem, is, that I don't know which one I need, and why. It's just 3 possibilities, so I can try all of them easily, but it would be better if I know for sure, which one is the correct choice.

and

ROM_GPIOPinTypeUSBAnalog(GPIO_PORTL_BASE, GPIO_PIN_6 | GPIO_PIN_7);

gives a fault.

Hi,

Are you porting usb_dev_msc for EK-LM4F232 to TM4C123GH6PM?

GPIO_PG4_USB0EPEN is dependent on a preprocessor define. See, at pin_map.h and your project options. Also, it is possible that USB0EPEN is assigned at a different pin for TM4C123GHPM.

What you can do is compare pin_map.h for EK-LM4F232 and pin_map.h for Tiva Launchpad.

-kel

YES, I just compared it, and I also listed the possible hits above.

HI,

    I think there are no usb_dev_msc for TM4C123GH6PM. You need to port usb_dev_msc from EK-LM4F232 Tivaware. 

-kel

I'm trying to port the code for TM4C123GH6PM. What I wanted to say, the same function is assigned to a different pin. I just don't know to which one?

Thanks! You pointed out, which document I needed. It works now :)