DSS writeRegister not working (F28069)

Andreea Negrea

Hello everyone,

I need some help with reading/writing some of the registers on the 69 using DSS.

I have the following methods written in Java:

	public void SetDSSRegisterValue(String regName, long value)
	{
		try
		{
			debugSession.memory.writeRegister(regName, value);
			System.out.println("register " + regName + " written to: " + value);
		}
		catch(Exception e)
		{
			System.out.println(e);
		}
	}

	public long GetDSSRegisterValue(String regName)
	{
		System.out.println("========> DSS GetDSSRegisterValue....");
		long val = 0;
		try
		{
			val = debugSession.memory.readRegister(regName);
			System.out.println(regName + " = " + val);
		}
		catch(Exception e)
		{
			System.out.println("ex: " + e);
			val = -1;
		}
		return val;
	}

When I call SetDSSRegisterValue("GPIO_GPACTRL", 111) I read back 111 using GetDSSRegisterValue("GPIO_GPACTRL") .

When I call SetDSSRegisterValue("ePWM1_TBPRD", 111) i read back 0 using GetDSSRegisterValue("ePWM1_TBPRD").

No PWM registers seem to be updating. GPIO registers are working. Is there anything I'm missing?

I'm not having issues with reading and writing variables.

I'm using Example_2806xCpuTimer example from the Control Suite.

Thanks,

over 7 years ago

0 Ki over 7 years ago

TI__Guru**** 421520 points

Hello,

Andreea Negrea said:

When I call SetDSSRegisterValue("ePWM1_TBPRD", 111) i read back 0 using GetDSSRegisterValue("ePWM1_TBPRD").

No PWM registers seem to be updating. GPIO registers are working. Is there anything I'm missing?

The syntax for the command looks right. One thing to confirm is to launch a debug session in CCS and see if you can change the value of the register via the Register view and it displays the changes.

Thanks

0 Andreea Negrea over 7 years ago in reply to Ki

Prodigy 45 points

Works fine in CCS...

0 Andreea Negrea over 7 years ago in reply to Ki

Prodigy 45 points

In addition to what I wrote, I'm using this to initialize the debugging session:

	ScriptingEnvironment env = ScriptingEnvironment.instance();
	DebugServer debugServer = null;
	DebugSession debugSession = null;
	public DSS()
	{
		System.out.println("========> DSS constructor....");
		try
		{
		    // Get the Debug Server and start a Debug Session
		    debugServer = (DebugServer)env.getServer("DebugServer.1");
		    debugServer.setConfig("C:/ti/controlSUITE/development_kits/F28069 controlSTICK/RT-SineFIRFFT32_v1_5/TMDX28069USB.ccxml");
		    debugSession = debugServer.openSession("Texas Instruments XDS100v1 USB Emulator_0/C28xx");
		    
		    Connect();
		   
		    //env.traceWrite("Loading Flash...");
		    debugSession.memory.loadProgram("C:/Users/popni1/workspace_v6_1/Example_2806xCpuTimer/Debug/Example_2806xCpuTimer.out");
		    
		}
		catch(Exception e)
		{
			
		}
	}
	public void Connect()
	{
		System.out.println("========> DSS connect....");
		try
		{
			if(!debugSession.target.isConnected())
			{
				System.out.println("DSS connection: " + debugSession.target.isConnected());
			    env.traceWrite("Connecting to device...");
			    debugSession.target.connect();
			    env.traceWrite("Connected.");
			    //debugSession.target.halt();
			}
		}
		catch(Exception e)
		{
			
		}
		
	}

0 Lori Heustess over 7 years ago

TI__Guru* 89465 points

Andreea Negrea said:
No PWM registers seem to be updating. GPIO registers are working. Is there anything I'm missing?

Andreea - have you enabled the clock to the PWM module? The registers read back zero if the clocks are not enabled.

0 Andreea Negrea over 7 years ago in reply to Lori Heustess

Prodigy 45 points

Thank you for your answer,

We enabled the PWM clock and now reading seems to work fine. Will post later if something else comes up.

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DSS writeRegister not working (F28069)