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Hi Praveen, You will need to have /* OutputDisabled = */ 0, //FALSE is enabled. Also the other thing you need is to include the following in the appconfig.h file to enable the timer when using the SDK. #define INCLUDE_USER_TIMER_D_2 0 Your waveform should have about a 3.3v level and with the settings should toggle every 4.525 microseconds (with an 80MHz clk) for a waveform frequency of 110.497kHz give-or-take-a-little (I can never quite tell with the quad timers unless I use an oscope). Pete --- In , "praveen" <powerarm2001@y...> wrote: > Hi > > I am looking for a help in Quad timers (DSp56f801) > > My questions are: > 1. Is it that we have to declare explicitly the Quad timers pins as > output pins in order to get the output or is it ok with outputDisabled > Parameter as 1. I use quad timer D2. > > const qtsState quadParam1 = > { > > /* Mode = */ qtCount, > /* InputSource = */ qtPrescalerDiv1, > /* InputPolarity = */ qtNormal, > /* SecondaryInputSource = */ 0, > > /* CountFrequency = */ qtRepeatedly, > /* CountLength = */ qtUntilCompare, > /* CountDirection = */ qtUp, > > /* OutputMode = */ qtToggleOnCompare, > /* OutputPolarity = */ qtNormal, > /* OutputDisabled = */ 1, > > /* Master = */ 0, > /* OutputOnMaster = */ 0, > /* CoChannelInitialize = */ 0, > /* AssertWhenForced = */ 0, > > /* CaptureMode = */ qtDisabled, > > /* CompareValue1 = */ 0x00B5, > /* CompareValue2 = */ 0, > /* InitialLoadValue = */ 0x0000, > > /* CallbackOnCompare = */ {0, 0 }, > /* CallbackOnOverflow = */ { 0, 0 }, > /* CallbackOnInputEdge = */ { 0, 0 }}; > What will be its output .From the datasheet I read the o/p is the > OFLAG signal. > > 2.Can you give the specifications for this signal like its voltage > level and time durations. > > 3.From the data sheet it says we can generate square waveforms using > this OFLAG signal. Can anyone give me an example . > > Thanks > Praveen |