AnsweredAssumed Answered

Start Pulse

Question asked by db10 on Jun 28, 2013
Latest reply on Jul 29, 2013 by BrettG

Another discussion indicated that the Start Pulse in a Sigma DSP is not a one time event but instead occurs every frame. I had previously thought that the start pulse was a one time event. The discussion stated, "The program counter will jump to the start of the program when it finishes processing a frame and then wait for the next audio sample to arrive. It will start processing once the next edge of the start pulse clock comes".


I'm not clear on the interaction between the generation of the start pulses and incoming frames (LRCLK). Suppose In a two Sigma DSP system one DSP generates master LRCLK and BCLK signals. The second DSP serial ports are set to be slaves to these clock signals. Both DSPs are driven from the same CLIK in signal. If the second (slave) DSP uses an internally generated start pulse please discuss the possible relationship(s) of the start pulse, incoming frame, and the processing of that frame.