FX3 SRAM Write example

VlKh_2251656 · ‎Feb 08, 2019

Hello.

Now I am looking at an example for a CYUSB3KIT-003 kit.

The example is called SRAM.

"3.6.2 SRAM Example"

In source code there is example of reading from memory(file "cyfxsram.c").

CyU3PDebugPrint(4,"Read\n\r");
apiRetStatus = CyU3PGpifSMSwitch (256, START1, 256, 0, 0);
if(apiRetStatus != CY_U3P_SUCCESS)
{
     CyU3PDebugPrint (CY_FX_DEBUG_PRIORITY, "CyU3PGpifSMSwitch failed, Error code = %d\r\n", apiRetStatus);
}
CyU3PUsbAckSetup ();
isHandled = CyTrue;

But there is no example of writing to memory.

Tell me, is it so?

How can I write to memory?

abhinavg_21 · ‎Feb 08, 2019

Hi,

-- Is it possible to write data to memory not by transferring it from a computer, but from the microcontroller itself?

Yes it is possible. Whenever you want to write to SRAM you have to invoke the GPIF SM with WRITE state.

--Is the entire size of its memory available (8 mbytes)?

It depends upon the counter values set in the GPIF designer tool.

Thanks & Regards

Abhinav

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FX3 SRAM Write example

FX3 SRAM Write example

Re: FX3 SRAM Write example