|
I am having a problem with my ADSP 21161. I am using the serial port#1 for my input from Audio Precision. If I use 16-bit input format, I can pack the two channels (AP always outputs 2 channels together although I only need one) into 32-bit words and separate them in the SPORT interrupt routine. And everything work fine in this way. However, if I need 24-bit input from the AP, I have to use two SPORT interrupts to receive the two channel data and dump one of them (similarly I need two interrupts for 16-bit input format if I don't pack them into 32-bit words). The problem is whenever I RELOAD the program in Visual DSP++ IDE debugger, my received data from RX1A look terrible, and then if I stop the run and hit RUN again without reloading, then in some cases, the waveform looks all right in a scope and otherwise still wrong. I have rechecked the user manual and it seems that my set-up and init are correct. Anyone here encoutered similar problems before? I greatly appreciate any helpful input. T.W. |
Help on ADSP 21161
Started by ●November 22, 2003
