[FAQ] AM13E23019: AM13E230x: Issue with the sysconfig interface for timer configuration

There are known bugs in the v26.00 SDK for Timer configuration in sysconfig. Please use the updated file below and replace it at: mcu_sdk/source/.meta/drivers/timer/v0/timer.syscfg.js

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/*
 *  ======== Timer.js ========
 */

"use strict";

let common = system.getScript("/common");
let soc = system.getScript(`/soc/${common.getSocName()}/drivers`);
let timerConfigOptions = system.getScript("/driverlib/device_driverlib_peripherals/"+common.getSocName()+"/dl_timer.js");

const EmptyTimerProfile = {
    timerClkDiv: "DL_TIMER_CLOCK_DIVIDE_1",
    timerClkPrescale: 1,
    timerMode: "DL_TIMER_TIMER_MODE_ONE_SHOT",
    timerPeriod: "0 ms",
    timerStartTimer: false,
    interrupts: [],
    event1ControllerInterruptEn: [],
    event2ControllerInterruptEn: [],
};

const TimerProfiles = [
    {
        name: "Basic_Periodic",
        timerClkDiv: "DL_TIMER_CLOCK_DIVIDE_8",
        timerClkPrescale: 256,
        timerPeriod: "500 ms",
        timerMode: "DL_TIMER_TIMER_MODE_PERIODIC",
        interrupts: ["DL_TIMER_INTERRUPT_ZERO_EVENT"],
        registerInterrupt: true
    },
    {
        name: "Basic_OneShot",
        timerClkDiv: "DL_TIMER_CLOCK_DIVIDE_8",
        timerClkPrescale: 256,
        timerPeriod: "500 ms",
        timerMode: "DL_TIMER_TIMER_MODE_ONE_SHOT",
        interrupts: ["DL_TIMER_INTERRUPT_ZERO_EVENT"],
        registerInterrupt: true
    }
];

let config = [
    common.addNameConfig("/drivers/timer", "TIMER_"),
    {
        name: "timerType",
        displayName: "Timer Type",
        longDescription: `The device supports the following types of timer instances. The actual instance can be selected under Pinmux group
        ![Timer Types](.meta/drivers/timer/v0/images/timerTypes.png "Timer Types")
        `,
        default: "TIMG4",
        options: [
            {name: "TIMG4"},
            {name: "TIMG12"}
        ],
        onChange : (inst, ui) => {
            ui.timerClkPrescale.hidden = inst.timerType == "TIMG12";
        }
    },
    /* Show selected peripheral below instance name */
    {
        name: "selectedInstance",
        displayName: "Selected Peripheral",
        default: "",
        longDescription: `Refer to the PinMux section for peripheral selection. Chosen instance name is not indicative of active peripheral.`,
        getValue: (inst) => {
            let solution = "";
            try{
                solution = inst.peripheral.$solution.peripheralName;
            }catch (e) {
                // do nothing
            }
            return solution;
        }
    },
    /****** PROFILES CONFIGURATION *******/
    {
        name: "GROUP_QUICK_PROFILE",
        displayName: "Quick Profiles",
        description: "",
        collapsed: false,
        config: [
            {
                name: "profile",
                displayName: "Timer Profiles",
                description: "Pre-defined profiles for typical TIMER configurations",
                longDescription: `
The TIMER module is a set of general purpose timers that can be
configured without an external pin to set an interrupt, event, or trigger other timers.
The module allows the use of TIMG4 and TIMG12 instances. A specific instance can be selected
in the PinMux Section, or one can be solved for based on the given capabilities

* **TIMG4**:
    * 16-bit counter with 8-bit prescaler
* **TIMG12**:
    * 32-bit counter without a prescaler

The profiles that are given are:
* **Basic Periodic**: Basic Periodic timer generating a zero interrupt every 500 ms
* **Basic One-Shot**: Basic One-Shot timer generating a zero interrupt 500 ms after being triggered`,
                default: "CUSTOM",
                options: [
                    { name: "Basic_Periodic", displayName: "Periodic with 500 ms Period and Zero Event"},
                    { name: "Basic_OneShot", displayName: "One-Shot with 500 ms Period and Zero Event" },
                    { name: "CUSTOM", displayName: "Custom" }
                ],
                onChange: onChangeTimerProfile
            }
        ]
    },
    /******************** BASIC CONFIGURATIONS *************************/
    {
        name: "GROUP_BASIC",
        displayName: "Basic Configuration",
        description: "",
        longDescription: "",
        collapsed: false,
            config: [
                {
                    name: "GROUP_CLOCK",
                    displayName: "Clock Configuration",
                    description: "",
                    longDescription: "Configures Timer clock source, divider and prescaler",
                    collapsed: false,
                    config: [
                        {
                            name        : "timerClkDiv",
                            displayName : 'Timer Clock Divider',
                            description : 'Timer Clock Divider',
                            hidden      : false,
                            default     : "DL_TIMER_CLOCK_DIVIDE_1",
                            options     : timerConfigOptions.DL_TIMER_CLOCK_DIVIDE,
                            onChange    : onChangeSetCustomProfile
                        },
                        {
                            name        : "timerClockSourceCalculated",
                            displayName : "Calculated Timer Clock Source",
                            description : 'Calculated Timer Clock Source in Hz',
                            hidden      : false,
                            getValue    : (inst) => getTimerClockSourceFreq(inst),
                            default     : 0
                        },
                        {
                            name        : "timerClkPrescale",
                            displayName : 'Timer Clock Prescaler',
                            description : 'Timer Clock Prescaler',
                            hidden      : false,
                            isInteger   : true,
                            default     : 1,
                            range       : [1, 256],
                            onChange    : onChangeSetCustomProfile
                        },
                        {
                            name: "GROUP_CLOCK_CAL",
                            displayName: "Calculated Timer Clock Values",
                            description: "",
                            collapsed: false,
                            config:
                            [
                                {
                                    name: "timerClockFreqNum",
                                    displayName : 'Timer Clock Frequency',
                                    description : 'Timer Clock Frequency',
                                    hidden: true,
                                    default: 0,
                                    getValue: getTimerClockFreq,
                                },
                                {
                                    name: "timerClockFreqStr",
                                    displayName : 'Timer Clock Frequency',
                                    description : 'Timer Clock Frequency',
                                    longDescription:
`
This is the clock frequency that is seen by the timer count register. It is after the input clock has been
divided and prescaled.\n
Timer Clock Frequency calculation: timerClkFreq = (timerClkSrc / (timerClkDiv \* timerClkPrescale))\n
ex.\n
Timer clock sourced by BUSCLK running at 32000000 Hz\n
Timer clock source divider set to 2\n
Timer clock prescale set to 4\n
          timerClkFreq = (timerClkSrc / (timerClkDivRatio * timerClkPrescale))\n
          4000000 Hz = 16000000 Hz / (2 * 4)\n
`,
                                    readOnly: true,
                                    hidden: false,
                                    default: "0 Hz",
                                    getValue: getTimerClockFreqStr,
                                },
                                {
                                    name: "timerPeriodRangeStr",
                                    displayName : 'Timer Period Range And Resolution',
                                    description : 'Range and Resolution of currently selected Timer instance',
                                    longDescription: 'Take into account if selected Timer instance has a 16-bit or 32-bit counter.',
                                    readOnly: true,
                                    hidden: false,
                                    default: "0 Hz",
                                    getValue: getTimerPeriodRangeStr,
                                },
                            ]
                        },
                        {
                            name: "timerClockFreq",
                            hidden: true,
                            default: 0,
                            getValue: getTimerClockFreq,
                        },
                    ]
                },
                {
                    name        : "timerMode",
                    displayName : 'Timer Mode',
                    description : 'Timer Mode',
                    hidden      : false,
                    default     : "DL_TIMER_TIMER_MODE_ONE_SHOT",
                    options     : timerConfigOptions.DL_TIMER_TIMER_MODE,
                    /*
                     * counterZero should only be selectable when the timer is
                     * in periodic mode
                     */
                    onChange: (inst, ui) => {
                        ui.counterZero.hidden = !(inst.timerMode == "DL_TIMER_TIMER_MODE_PERIODIC");
                        onChangeSetCustomProfile(inst, ui);
                    }
                },
                {
                    name        : "timerPeriod",
                    displayName : 'Desired Timer Period',
                    description : 'Desired Timer Period in seconds',
                    longDescription: `The desired timer period is an input string that can set the period of the timer.
                                      Expected units (s). Valid formats:
* Units with supported prefixes (G, M, k, c, m, u, n):
    * 234.56 ms, 150ns
* Units without a prefix:
    * 0.0123 s, 1.0 s
* Exponential form with units
    * 123.45e-8 s
* No units or prefix (interpreted as seconds):
    * 1.234`,
                    hidden      : false,
                    default     : "0 ms",
                    onChange    : onChangeSetCustomProfile
                },
                {
                    name        : "timerPeriodActualTicks",
                    displayName : 'hidden-actualTimerTicks',
                    description : 'hidden-actualTimerTicks',
                    hidden      : true,
                    default     : 0,
                    getValue    : getActualTimerPeriodTicks,
                },
                {
                    name        : "timerPeriodActual",
                    displayName : 'Actual Timer Period',
                    description : 'Actual Timer Period',
                    hidden      : false,
                    default     : "0 s",
                    getValue    : getActualTimerPeriod,
                },
                {
                    name        : "timerStartTimer",
                    displayName : 'Start Timer',
                    description : 'Start Timer',
                    longDescription: `When selected, the timer starts counting
                    after the Timer is initialized. Otherwise the timer will start
                    counting after the application calls DL_TimerX_startCounter.`,
                    hidden      : false,
                    default     : false,
                    onChange    : onChangeSetCustomProfile
                },
        ]
    },
    /******************** Advanced CONFIGURATION *************************/
    {
        name: "GROUP_ADVANCED",
        displayName: "Advanced Configuration",
        collapsed: true,
        config: [
            {
                name            : "enableShadowLoad",
                displayName     : "Enable Shadow Load",
                description     : "Enables Shadow Load",
                longDescription : `Enables shadow load feature. Only supported in TIMA instance and TIMG4-TIMG7 instances.
                \n When enabled updates to Timer LOAD register are synchronized with the timer's ZERO event`,
                default         : false,
                onChange        : onChangeEnableShadowLoad
            }
        ]
    },
    /******************** INTERRUPT *************************/
    {
        name: "interruptsConfig",
        displayName: "Interrupts Configuration",
        collapsed: true,
        config: [
            {
                name: "interrupts",
                displayName: "Enable Interrupts",
                description: "Specifies which interrupts are to be enabled",
                longDescription: `Specifies the timer interrupts will be triggered`,
                default: [],
                options: timerConfigOptions.DL_TIMER_INTERRUPT,
                minSelections: 0,
                onChange: onChangeInterrupts,
            },
            {
                name        : "registerInterrupt",
                displayName : "Register Interrupt In The Core",
                default     : false
            }
        ]
    },
    {
        name: "eventConfig",
        displayName: "Event Configuration",
        longDescription: `Specifies the Timer Events that are to trigger an Event Condition and where the events are to be published`,
        collapsed: true,
        config: [
            {
                name: "event1ControllerInterruptEn",
                displayName: "Event 1 Enable Controller Interrupts",
                description: "Determines the Timer Events that will trigger an Event 1 condition",
                longDescription: `Selects all possible timer Events that will create an Event 1 condition`,
                default: [],
                options: timerConfigOptions.DL_TIMER_EVENT,
                minSelections: 0,
            },
            {
                name: "event2ControllerInterruptEn",
                displayName: "Event 2 Enable Controller Interrupts",
                description: "Determines the Timer Events that will trigger an Event 2 condition",
                longDescription: `Selects all possible timer Events that will create an Event 2 condition`,
                default: [],
                options: timerConfigOptions.DL_TIMER_EVENT,
                minSelections: 0,
            },
            {
                name: "counterZero",
                displayName: "Zero Counter On A Published Event",
                description: "Specifies whether the counter should be zeroed on a published event",
                longDescription: "",
                hidden: true,
                default: false,
            }
        ]
    },
]

/************************* Profile functions *******************************/
function onChangeTimerProfile(inst, ui) {
    if(inst.profile !== "CUSTOM") {
        // matches name shorthand
        let selectedProfile = _.filter(TimerProfiles, ['name', inst.profile]);
        if(selectedProfile.length === 1){
            // assigns the empty profile with the selected profile on top
            Object.assign(inst, EmptyTimerProfile,
                _.pickBy(selectedProfile[0], (_,key) => key !== 'name'));

        } else {
            throw `profileError`;
        }
    }
}

/************************* Basic onChange functions *******************************/
function onChangeSetCustomProfile(inst, ui) {
    inst.profile = "CUSTOM";
}

/************************* Advanced onChange functions *******************************/
function onChangeEnableShadowLoad(inst,ui)
{
    onChangeSetCustomProfile(inst, ui);
}

/************************* Interrupt onChange functions *******************************/
function onChangeInterrupts(inst,ui)
{
    onChangeSetCustomProfile(inst, ui);
}
/************************* General functions **********************************/
function getTimerClockSourceFreq(inst) {

    let timerClockFreq = common.getBUSCLKFreq("TIMER");

    timerClockFreq = timerClockFreq / inst.timerClkDiv.slice(-1);

    return timerClockFreq;
}

function getTimerClockFreq(inst,ui)
{
    let timerClkFreq = common.getBUSCLKFreq("TIMER");;
    let timerDivider = inst.timerClkDiv.slice(-1);
    let timerPrescaler;

    if(isHighResolutionCapable(inst)){
        timerPrescaler = 1;
    }else{
        timerPrescaler = (inst.timerClkPrescale);
    }

    timerClkFreq = (timerClkFreq / (timerDivider * timerPrescaler));

    return timerClkFreq;

}

function getTimerClockFreqStr(inst,ui)
{
    let freq = getTimerClockFreq(inst,ui);
    let freqStr = common.getUnitPrefix(freq);

    return freqStr.str + "Hz";
}

function getTimerPeriodRangeStr(inst,ui)
{
    let bitRes;
    let minPeriod;
    let maxPeriod;
    let maxPeriodScaled;
    let maxPeriodVal;
    let maxPeriodUnits;
    let resolution;
    let timerFreq;

    timerFreq = getTimerClockFreq(inst,ui);

    bitRes = getTimerCountBitRes(inst,ui);

    resolution = minPeriod = common.getUnitPrefix( 1 / timerFreq);
    if(inst.timerMode.includes("UP_DOWN")){
        maxPeriod  = 2*Math.pow(2,bitRes) / timerFreq;
    }else{
        maxPeriod  = (Math.pow(2,bitRes) / timerFreq);
    }

    maxPeriodScaled = getScaledPeriod(maxPeriod);
    maxPeriodVal = maxPeriodScaled[0];
    maxPeriodUnits = maxPeriodScaled[1];

    let str = minPeriod.str + "s to " + maxPeriodVal + maxPeriodUnits + "w/ resolution of " + resolution.str + "s";
    return str;
}

function isHighResolutionCapable(inst)
{
    return (inst.timerType == "TIMG12")
}

function getTimerCountBitRes(inst,ui)
{
    let bitRes;

    if(isHighResolutionCapable(inst))
    {
        bitRes = 32;
    }else{
        bitRes = 16;
    }

    return bitRes;
}

function getScaledPeriod(valueInSec)
{
    let value;
    let maxPerUnits;
    let maxPeriodStr;

    /* Avoid ks notation */
    if((valueInSec / 1000) > 1)
    {
        value = (valueInSec / 60);
        /* Avoid kmin notation */
        if((value / 1000) > 1)
        {
            value = (value / 60);
            maxPerUnits = "hrs ";
        }else
        {
            maxPerUnits = "min ";
        }
    }else{
       value = valueInSec;
       maxPerUnits = "s ";
    }

     maxPeriodStr = common.getUnitPrefix(value).str;

     return [maxPeriodStr , maxPerUnits]
}

function getActualTimerPeriodTicks(inst)
{
    let desiredPeriod = common.parseFloatUnitInput(inst.timerPeriod,"s");
    if(desiredPeriod === NaN){
        return "NaN";
    }
    let timerFreq = getTimerClockFreq(inst);

    if(inst.timerMode.includes("UP_DOWN"))
    {
        desiredPeriod = desiredPeriod / 2;
    }else{
        desiredPeriod = desiredPeriod;
    }
    return (Math.round(desiredPeriod * timerFreq));

}

function getActualTimerPeriod(inst)
{
    let timerFreq = getTimerClockFreq(inst);
    let maxTimerTicks = Math.pow(2,getTimerCountBitRes(inst));
    let timerMode = inst.timerMode
    let timerTicks;
    let actualStr;

    timerTicks = getActualTimerPeriodTicks(inst);

    if(timerMode.includes("UP_DOWN"))
    {
        maxTimerTicks = 2*maxTimerTicks;
    }else{
        maxTimerTicks = maxTimerTicks;
    }

    if(timerTicks > maxTimerTicks)
    {
        actualStr = 'Desired Timer Period is out of range'
    }else{
        let result = getScaledPeriod(timerTicks / timerFreq);
        actualStr = result[0] + result[1];
    }
    return actualStr;
}

function moduleInstances(inst)
{
    let components = []
    if(inst.registerInterrupt) {
        components.push(
            {
                moduleName  : "drivers/interrupt",
                name        : "timerInt",
                displayName : "Timer Interrupt",
                collapsed   : false,
                group       : "GROUP_INTERRUPTS",
                requiredArgs : {
                    $name                   : inst.$name + "_INT",
                    pinmuxPeripheral        : true,
                    pinmuxPeripheralIntName : "#_INT"
                },
            }
        )
    }
    return components
}

/*  ======== pinmuxRequirements ========
 *  Returns peripheral pin requirements of the specified instance
 *
 *  param inst    - a fully configured PWM instance
 *
 *  returns req[] - an array of pin requirements needed by inst
 */
function pinmuxRequirements(inst)
{
    let allResources = [];

    let timer = {
        name: "peripheral",
        displayName: "Timer Peripheral",
        interfaceName: "TIMER",
        filter: (peripheral) => {return peripheral.name.startsWith(inst.timerType)},
        resources: [],
        signalTypes: {
        },
    };

    let ind;

    return ([timer]);
}

/*
 *  ======== validate ========
 *  Validate this inst's configuration
 *
 *  param inst       - module instance to be validated
 *  param validation - object to hold detected validation issues
 */
function validate(inst, validation)
{
    if(inst.timerPeriodActual == 'Desired Timer Period is out of range')
        validation.logError("Desired Timer Period is out of range", inst, "timerPeriodActual")
}

/*
 *  ===================== Timer MODULE ===========================
 *  Define the Timer properties and methods
 */
let timer_module = {
    displayName: "TIMER",
    description: "Timer Module",
    //TBD: Add long description with image
    defaultInstanceName: "APP_TIMER_",
    config: config,

    pinmuxRequirements: pinmuxRequirements,

    validate: validate,

    modules: common.autoForceModules(["config", "sysctl"]),

    /* override device-specific templates */
    templates: {
        configc: "/drivers/timer/"+soc.getDriverVer("timer")+"/dl_timer_config.c.xdt",
        configh: "/drivers/timer/"+soc.getDriverVer("timer")+"/dl_timer_config.h.xdt",
        Call: true,
        Reset: true,
        Power: true,
        Pinmux: true,
        Function: true,

    },

    moduleInstances,
    maxInstances: common.getInstanceList("TIM").length
};

exports = timer_module;

Then re-open your example.syscfg and try to re-configure the timers.

Regards,
Shaunak