for an FM pre-modulator I need to generate a 38Khz tone using the ADSP-21489 (Ez-kit lite) and Sigma Studio 3.12.
The maximum output frequency seems to be limited to 24Khz at the AD1939 DAC's output, also changing the Sample Rate of each block of the circuit. I've attached a very simple project to show the problem: also changing the sample rate to 96KHz the output on the CH0 channel do not exeed the 24Khz. Can someone help me? Thanks and regards.
The Sampling rate in the Target Application also has to be changed to 96KHz. To do this, Refer to section 3.1 Application Sampling Rate of SigmaStudio_for_SHARC_Framework.pdf document. Rebuild the ldr/ dxe after this change and use the rebuilt ldr/ dxe with the schematic.
It works!Thank you very much!