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  • TM4C1232H6PM: Can TM4C1232H6PM be used as a drop in replacement for TM4C1237E6PM?

    Resolved
    Part Number: TM4C1232H6PM Can i use the TM4C1232H6PM as drop in replacement to our design without any changes? Are there any gotchas? I am aware that TM4C1232H6PM is USB device only. I don't need host/OTG support. What are the other differences? …
    • Resolved

  • RE: TM4C1237E6PM: USB OUT followed by IN of *very specific* packet sizes fail

    Hello Douglas, I have been supporting the USB library since 2017 and this is the first time I've had a customer using APIs like USBDCDRequestDataEP0 / USBDCDSendDataEP0 / USBDCDStallEP0 in the application layer. On the few cases I've seen requests…
    • Answered

  • TM4C1237E6PM: How do I debug Tiva processors with Segger J-Link using SWD instead of JTAG

    Resolved
    Part Number: TM4C1237E6PM Other Parts Discussed in Thread: SEGGER Greetings. I have a board with a Tiva processor that I am trying to debug using a Segger J-Link Plus device in SWD mode. Unfortunately, CCS gives me a ' Cortex_M4_0: Error: Stat [ JLINKARM_IsHalted…
    • Resolved

  • RE: TM4C1237E6PM: SysTick_Handler stops being called

    Hi Chuck, Chuck Wilde said: Can't find a source file at "C:/Jenkins/workspace/TivaWare-Git-Release/DriverLib/build/DriverLib.test/driverlib/systick.c" Locate the file or edit the source lookup path to include its location. Please see…

  • TM4C1237E6PM: Device hangs when compiled with -O2, runs fine when compiled with -O0.

    Part Number: TM4C1237E6PM I'm working with CCS 6.2. We had a problem with the TIVA device on out custom board failing to call Systick and thus hanging in its FSM, so I tried running through the debugger. The code was compiled with -O2, which caused…

  • TM4C1237E6PM: How fast can I read an input pin with GPIO_PinRead?

    TI Thinks Resolved
    Part Number: TM4C1237E6PM I am trying to read input PA2 on the TIVA device every 100ms, using a SW timer, storing the 1/0 value in a 16-bit shift register. I am sending in a 5Hz square wave from a frequency generator. The shift register toggles between…
    • Answered

  • TM4C1237E6PM: usb_dev_serial.c no longer works properly when USB connected to Win10 machine

    Resolved
    Part Number: TM4C1237E6PM Other Parts Discussed in Thread: EK-TM4C123GXL , DK-TM4C123G We use a TIVA device, and imbedded in the code is the usb_dev_serial.c file provided for TI for USB interfaces. This has been working fine for 3+ years when a Win7 or…
    • Resolved
    • Answered

  • TM4C1237E6PM: Is the internal Flash memory NOR or NAND based?

    Resolved
    Part Number: TM4C1237E6PM If the internal Flash memory is NOR based, then it should be defect-free. If it is NAND-based, then error detection and correction is more of an issue. I think it is NOR-based because that is typical for internal flash in a micro…
    • Resolved

  • TM4C1237E6PM: TivaWare USB not recognized, depending on the way I select pins in TI PinMux

    Part Number: TM4C1237E6PM I used TI PinMux to update the pinout for a device, along with the functions. I took the generated code into CCS and compiled it into an image. When I downloaded the image over USB DFU, the TIVA processor hung and I eventually…

  • TM4C1237E6PM: After working for weeks, LM Flash Programmer won't work because of "USB Device Not Recognized" error, TIVA device seems to be bricked.

    Part Number: TM4C1237E6PM I have been using LM Flash Programmer for weeks to program the TM4C device on our custom board. I am using the USB DFU configuration. I made yet another change to the code, entered the dfu command in my TeraTerm window, and then…

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