Enabling NMI on TM4C1294NCPDT

Hello Soumyajit,

A good read on the use of NMI.

e2e.ti.com/.../389894

Regards
Amit

Might this be a good example of poster having (mistakenly) unlocked the MCU from it's "normal" NMI behavior? Pure poetic justice!

Suggest this post be filed under, "Man bites dog!"

Hi Amit,

   I got the NMI enabled ("GPIOPinConfigure(GPIO_PD7_NMI);" was missing in my code). Now I am unable to place the function that's going to get triggered upon occurance of the NMI. The function I wrote is "void NmiSR(void)", but how do I let the system know that this function needs to run upon NMI?

   I tried from the XDC tool to create a new Hwi object but the setting of "Interrupt Number" in "TI-RTOS > Products > SYSBIOS > Scheduling > Hwi - Instance Setting" won't allow setting of Interrupt Number = 2 (2 is the vector of NMI). It says, Interrupt Number has to be greater than 15!!!

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Thanks

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Regards

Soumyajit

Hello Soumyajit,

E2E Forum Search...

e2e.ti.com/.../375721

Regards
Amit

Hi Amit,

   I tried to put Hwi.nmiFunc = "&NmiSR"; at the last line of my .cfg file & now the compiler generates two errors as follows:

1. ti.sysbios.hal.Hwi: no element named 'nmiFunc'

2. XDC runtime error: ti.sysbios.hal.Hwi: no element named 'nmiFunc'

Hello Soumyajit,

I think it should be m3Hwi.nmiFunc instead of Hwi.nmiFunc. I don't have a ready project to test it with it.

Regards
Amit

Hi Amit,

   Compiler says "m3Hwi" is not defined !!

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Thanks

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Regards

Soumyajit

Hi Amit,

   I missed out "var m3Hwi = xdc.useModule('ti.sysbios.family.arm.m3.Hwi');", but now the error shown is:

"identifier "NmiSR" is undefined" for the statement "m3Hwi.nmiFunc = "&NmiSR";".

In my main.c file, I have:

void NmiSR(void);

void NmiSR(void)

{

// GPIOPinConfigure(GPIO_PD7_U2TX);

GPIO_write(LED_RUN_OUT, PIN_LOW);

GPIO_write(LED_ERROR_OUT, PIN_HIGH);

while(1);

}

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Can you suggest what might be going wrong?

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Thanks

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Regards

Soumyajit

Hello Soumyajit,

That is exactly where I ended up. I have asked the same question on TI-RTOS forum as well. You may want to track the same

e2e.ti.com/.../375721

Regards
Amit

Hi Amit,
I will wait for a response!!
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Thanks
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Regards
Soumyajit

Hi Amit,

  Posting a copy of the *.cfg file contents:

/*
* Copyright (c) 2013, Texas Instruments Incorporated
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
*
* * Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
*
* * Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
*
* * Neither the name of Texas Instruments Incorporated nor the names of
* its contributors may be used to endorse or promote products derived
* from this software without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
* AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO,
* THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
* PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR
* CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
* EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
* PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS;
* OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,
* WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR
* OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE,
* EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*/

/*
* ======== fatsdusbcopy.cfg ========
*/

/* ================ General configuration ================ */
var Defaults = xdc.useModule('xdc.runtime.Defaults');
var Diags = xdc.useModule('xdc.runtime.Diags');
var Error = xdc.useModule('xdc.runtime.Error');
var Log = xdc.useModule('xdc.runtime.Log');
var Main = xdc.useModule('xdc.runtime.Main');
var Memory = xdc.useModule('xdc.runtime.Memory');
var System = xdc.useModule('xdc.runtime.System');
var Text = xdc.useModule('xdc.runtime.Text');

var Task = xdc.useModule('ti.sysbios.knl.Task');
var Hwi = xdc.useModule('ti.sysbios.hal.Hwi');
var FatFS = xdc.useModule('ti.sysbios.fatfs.FatFS');
var m3Hwi = xdc.useModule('ti.sysbios.family.arm.m3.Hwi');

var Mailbox = xdc.useModule('ti.sysbios.knl.Mailbox');
var UART = xdc.useModule('ti.drivers.UART');
var I2C = xdc.useModule('ti.drivers.I2C');
var SPI = xdc.useModule('ti.drivers.SPI');
var Semaphore = xdc.useModule('ti.sysbios.knl.Semaphore');
var EMAC = xdc.useModule('ti.drivers.EMAC');
var Global = xdc.useModule('ti.ndk.config.Global');
var Ip = xdc.useModule('ti.ndk.config.Ip');
var Http = xdc.useModule('ti.ndk.config.Http');

/* System stack size (used by ISRs and Swis) */
Program.stack = 8192;//0x300;

/*
* Comment this line to allow module names to be loaded on the target.
* The module name strings are placed in the .const section. Setting this
* parameter to false will save space in the .const section. Error and
* Assert messages will contain an "unknown module" prefix instead
* of the actual module name.
*/
Defaults.common$.namedModule = false;

/*
* Minimize exit handler array in System. The System module includes
* an array of functions that are registered with System_atexit() to be
* called by System_exit().
*/
System.maxAtexitHandlers = 2;

/*
* Comment this line to allow Error, Assert, and Log strings to be
* loaded on the target. These strings are placed in the .const section.
* Setting this parameter to false will save space in the .const section.
* Error, Assert and Log message will print raw ids and args instead of
* a formatted message.
*/
Text.isLoaded = true;//false;

/* ================ System configuration ================ */
var SysStd = xdc.useModule('xdc.runtime.SysStd');
System.SupportProxy = SysStd;

/* ================ BIOS configuration ================ */
/*
* Disable unused BIOS features to minimize footprint.
* This example uses Tasks but not Swis or Clocks.
*/
var BIOS = xdc.useModule('ti.sysbios.BIOS');
BIOS.libType = BIOS.LibType_Custom;
BIOS.swiEnabled = true;//false;
BIOS.logsEnabled = false;
BIOS.assertsEnabled = false;

/* Declare the heap size */
BIOS.heapSize = 22528;

/* No runtime stack checking is performed */
Task.checkStackFlag = false;
Hwi.checkStackFlag = false;

/* Reduce the number of task priorities */
Task.numPriorities = 16;

/* Remove the Idle Task */
Task.enableIdleTask = true;//false;

//var mboxParam = new Mailbox.Params();

//m3Hwi.resetVectorAddress = 0x8000; // App base

/* ================ Task configuration ================ */
var taskParams = new Task.Params();
taskParams.instance.name = "fatsdUSBCopyTask";
taskParams.stackSize = 2000;//0x400;
taskParams.priority = 3;
Program.global.task = Task.create("&taskFxn", taskParams);

var taskParams = new Task.Params();
taskParams.instance.name = "lcdTask";
taskParams.stackSize = 2000;//0x400;
taskParams.priority = 9;
Program.global.task = Task.create("&lcdTaskFxn", taskParams);

var taskParams = new Task.Params();
taskParams.instance.name = "com0Task";
taskParams.stackSize = 8000;//0x400;
taskParams.priority = 5;
Program.global.task = Task.create("&com0TaskFxn", taskParams);

var taskParams = new Task.Params();
taskParams.instance.name = "ExtRtcTask";
taskParams.stackSize = 2000;//0x400;
taskParams.priority = 9;
Program.global.task = Task.create("&extRtcTaskFxn", taskParams);

var taskParams = new Task.Params();
taskParams.instance.name = "KeyTask";
taskParams.stackSize = 2000;//0x400;
taskParams.priority = 10;
Program.global.task = Task.create("&keyTaskFxn", taskParams);

var taskParams = new Task.Params();
taskParams.instance.name = "AdcCh16Task";
taskParams.stackSize = 2000;//0x400;
taskParams.priority = 3;
Program.global.task = Task.create("&adcCh16TaskFxn", taskParams);

var taskParams = new Task.Params();
taskParams.instance.name = "AdcCh4Task";
taskParams.stackSize = 2000;//0x400;
taskParams.priority = 3;
Program.global.task = Task.create("&adcCh4TaskFxn", taskParams);

var taskParams = new Task.Params();
taskParams.instance.name = "DataLogTask";
taskParams.stackSize = 2000;//0x400;
taskParams.priority = 3;
Program.global.task = Task.create("&dataLogTaskFxn", taskParams);

var taskParams = new Task.Params();
taskParams.instance.name = "SdCardLogTask";
taskParams.stackSize = 2000;//0x400;
taskParams.priority = 3;
Program.global.task = Task.create("&sdCardLogTaskFxn", taskParams);

var taskParams = new Task.Params();
taskParams.instance.name = "DigitalInputTask";
taskParams.stackSize = 2000;//0x400;
taskParams.priority = 3;
Program.global.task = Task.create("&DigInputTaskFxn", taskParams);

var taskParams = new Task.Params();
taskParams.instance.name = "Sdi12Task";
taskParams.stackSize = 2000;//0x400;
taskParams.priority = 3;
Program.global.task = Task.create("&sdi12TaskFxn", taskParams);

var taskParams = new Task.Params();
taskParams.instance.name = "DigitalOutputTask";
taskParams.stackSize = 2000;//0x400;
taskParams.priority = 3;
Program.global.task = Task.create("&DigOutputTaskFxn", taskParams);

var taskParams = new Task.Params();
taskParams.instance.name = "UserInterfaceTask";
taskParams.stackSize = 2000;//0x400;
taskParams.priority = 3;
Program.global.task = Task.create("&userInterfaceTaskFxn", taskParams);

var taskParams = new Task.Params();
taskParams.instance.name = "AlarmTask";
taskParams.stackSize = 2000;//0x400;
taskParams.priority = 3;
Program.global.task = Task.create("&alarmTaskFxn", taskParams);

var taskParams = new Task.Params();
taskParams.instance.name = "GpsTask";
taskParams.stackSize = 2000;//0x400;
taskParams.priority = 3;
Program.global.task = Task.create("&gpsTaskFxn", taskParams);

var taskParams = new Task.Params();
taskParams.instance.name = "GpsTimeUpdateTriggerTask";
taskParams.stackSize = 2000;//0x400;
taskParams.priority = 3;
Program.global.task = Task.create("&gpsTimeUpdateTriggerTaskFxn", taskParams);

var taskParams = new Task.Params();
taskParams.instance.name = "SerialFlashTask";
taskParams.stackSize = 2000;//0x400;
taskParams.priority = 3;
Program.global.task = Task.create("&serialFlashTaskFxn", taskParams);

var taskParams = new Task.Params();
taskParams.instance.name = "TestTask";
taskParams.stackSize = 2000;//0x400;
taskParams.priority = 3;
Program.global.task = Task.create("&testTaskFxn", taskParams);

var taskParams = new Task.Params();
taskParams.instance.name = "LCDTask";
taskParams.stackSize = 2000;//0x400;
taskParams.priority = 5;
Program.global.task = Task.create("&LCDTaskFxn", taskParams);

var taskParams = new Task.Params();
taskParams.instance.name = "GsmTask";
taskParams.stackSize = 4000;//0x400;
taskParams.priority = 3;
Program.global.task = Task.create("&gsmTaskFxn", taskParams);

var taskParams = new Task.Params();
taskParams.instance.name = "HmiTask";
taskParams.stackSize = 2000;//0x400;
taskParams.priority = 3;
Program.global.task = Task.create("&hmiTaskFxn", taskParams);

var taskParams = new Task.Params();
taskParams.instance.name = "TcpOutgoingTask";
taskParams.stackSize = 2000;//0x400;
taskParams.priority = 3;
Program.global.task = Task.create("&tcpOutgoingTaskFxn", taskParams);

var taskParams = new Task.Params();
taskParams.instance.name = "SfLogTask";
taskParams.stackSize = 2000;//0x400;
taskParams.priority = 3;
Program.global.task = Task.create("&sfLogTaskFxn", taskParams);

var taskParams = new Task.Params();
taskParams.instance.name = "SfDebugStoreTask";
taskParams.stackSize = 2000;//0x400;
taskParams.priority = 3;
Program.global.task = Task.create("&sfDebugStoreTaskFxn", taskParams);

var taskParams = new Task.Params();
taskParams.instance.name = "SfDebugRestoreTask";
taskParams.stackSize = 2000;//0x400;
taskParams.priority = 3;
Program.global.task = Task.create("&sfDebugRestoreTaskFxn", taskParams);

var taskParams = new Task.Params();
taskParams.instance.name = "QeiTask";
taskParams.stackSize = 2000;//0x400;
taskParams.priority = 3;
Program.global.task = Task.create("&qeiTaskFxn", taskParams);

/* ================ Driver configuration ================ */
var TIRTOS = xdc.useModule('ti.tirtos.TIRTOS');
var GPIO = xdc.useModule('ti.drivers.GPIO');
var SDSPI = xdc.useModule('ti.drivers.SDSPI');
var USBMSCHFatFs = xdc.useModule('ti.drivers.USBMSCHFatFs');
GPIO.libType = GPIO.LibType_NonInstrumented;
SDSPI.libType = SDSPI.LibType_NonInstrumented;
USBMSCHFatFs.libType = USBMSCHFatFs.LibType_NonInstrumented;
var mailbox0Params = new Mailbox.Params();
mailbox0Params.instance.name = "mboxLcd";
Program.global.mboxLcd = Mailbox.create(22, 12, mailbox0Params);
UART.libType = UART.LibType_NonInstrumented;
I2C.libType = I2C.LibType_NonInstrumented;
SPI.libType = SPI.LibType_NonInstrumented;
var semaphore0Params = new Semaphore.Params();
semaphore0Params.instance.name = "mtxMdoAdc4Ch";
semaphore0Params.mode = Semaphore.Mode_BINARY;
Program.global.mtxMdoAdc4Ch = Semaphore.create(1, semaphore0Params);
var semaphore1Params = new Semaphore.Params();
semaphore1Params.instance.name = "mtxMdoAdc16Ch";
semaphore1Params.mode = Semaphore.Mode_BINARY;
Program.global.mtxMdoAdc16Ch = Semaphore.create(1, semaphore1Params);
var semaphore2Params = new Semaphore.Params();
semaphore2Params.instance.name = "semDataLog";
semaphore2Params.mode = Semaphore.Mode_BINARY;
Program.global.semDataLog = Semaphore.create(null, semaphore2Params);
var semaphore3Params = new Semaphore.Params();
semaphore3Params.instance.name = "mtxSdCardAccess";
semaphore3Params.mode = Semaphore.Mode_BINARY;
Program.global.mtxSdCardAccess = Semaphore.create(1, semaphore3Params);
var semaphore4Params = new Semaphore.Params();
semaphore4Params.instance.name = "semOneSecTickForDataLogging";
Program.global.semOneSecTickForDataLogging = Semaphore.create(null, semaphore4Params);
var semaphore5Params = new Semaphore.Params();
semaphore5Params.instance.name = "semSdCardActivityTrigger";
semaphore5Params.mode = Semaphore.Mode_BINARY;
Program.global.semSdCardActivityTrigger = Semaphore.create(null, semaphore5Params);
var mailbox1Params = new Mailbox.Params();
mailbox1Params.instance.name = "mboxUiIncoming";
Program.global.mboxUiIncoming = Mailbox.create(256, 1, mailbox1Params);
var mailbox2Params = new Mailbox.Params();
mailbox2Params.instance.name = "mboxUiOutgoing";
Program.global.mboxUiOutgoing = Mailbox.create(256, 1, mailbox2Params);
var mailbox3Params = new Mailbox.Params();
mailbox3Params.instance.name = "mboxSetRtc";
Program.global.mboxSetRtc = Mailbox.create(30, 1, mailbox3Params);
var mailbox4Params = new Mailbox.Params();
mailbox4Params.instance.name = "mboxSd2UsbCopy";
Program.global.mboxSd2UsbCopy = Mailbox.create(50, 1, mailbox4Params);
var mailbox5Params = new Mailbox.Params();
mailbox5Params.instance.name = "mboxAlarmLog";
Program.global.mboxAlarmLog = Mailbox.create(50, 20, mailbox5Params);
var semaphore6Params = new Semaphore.Params();
semaphore6Params.instance.name = "semOneSecTickForGpsTimeUpdate";
Program.global.semOneSecTickForGpsTimeUpdate = Semaphore.create(null, semaphore6Params);
var semaphore7Params = new Semaphore.Params();
semaphore7Params.instance.name = "semGpsTimeUpdateRequest";
semaphore7Params.mode = Semaphore.Mode_BINARY;
Program.global.semGpsTimeUpdateRequest = Semaphore.create(0, semaphore7Params);
var semaphore8Params = new Semaphore.Params();
semaphore8Params.instance.name = "semSfActivityTrigger";
semaphore8Params.mode = Semaphore.Mode_BINARY;
Program.global.semSfActivityTrigger = Semaphore.create(null, semaphore8Params);
EMAC.libType = EMAC.LibType_NonInstrumented;
Global.IPv6 = false;
Ip.autoIp = false;
Ip.address = "192.168.1.1";
Ip.mask = "255.255.255.0";
Ip.gatewayIpAddr = "192.168.1.2";
Ip.domainName = "mydomain.com";
var http0Params = new Http.Params();
var http0 = Http.create(http0Params);
Global.lowTaskPriLevel = 3;
Global.stackInitHook = "&AddWebFiles";
Global.stackDeleteHook = "&RemoveWebFiles";
var semaphore9Params = new Semaphore.Params();
semaphore9Params.instance.name = "semOneSecTickForGsmGprs";
Program.global.semOneSecTickForGsmGprs = Semaphore.create(null, semaphore9Params);
var semaphore10Params = new Semaphore.Params();
semaphore10Params.instance.name = "semSfLogActivityTrigger";
semaphore10Params.mode = Semaphore.Mode_BINARY;
Program.global.semSfLogActivityTrigger = Semaphore.create(null, semaphore10Params);
var mailbox6Params = new Mailbox.Params();
mailbox6Params.instance.name = "mboxDebugStore";
Program.global.mboxDebugStore = Mailbox.create(32, 10, mailbox6Params);
var semaphore11Params = new Semaphore.Params();
semaphore11Params.instance.name = "semSfDbgRead";
Program.global.semSfDbgRead = Semaphore.create(null, semaphore11Params);
Global.networkIPAddrHook = "&mynetworkIPAddrHook";
Global.networkOpenHook = "&functionNetworkOpenHook";
m3Hwi.nmiFunc = "&NmiSR";

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Thanks

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Regards

Soumyajit

Hello Soumyajit

Post it in the TI-RTOS Forum

Regards
Amit