Hi I'm using the Blackfin 21535 and I'm having some difficulties getting the serial port to work as required. I understand the serial ports on 21160/21160, but I'm baffled by the Blackfin Implementation I need to receive a multi-channel signal with only two 16bit channels. One frame-sync per channel pair. As I read the manual the DSP only supports multi-channel mode when more than 8 channels are received (Window size). Am I right that the only way for me to receive only two channels will be to have the frame-syncs more than 8 channels apart and then only enable the first two. (This is a bit annoying, since it will require hardware changes and add to the power consumption). Regards, Michael, Denmark |
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Blackfin 21535/BF535 S-port
Started by ●June 24, 2003
Reply by ●June 24, 20032003-06-24
On Tue, 24 Jun 2003, Michael Rinder Larsen wrote: > I'm using the Blackfin 21535 and I'm having some difficulties getting the > serial port to work as required. > > I understand the serial ports on 21160/21160, but I'm baffled by the > Blackfin Implementation > > I need to receive a multi-channel signal with only two 16bit channels. > One frame-sync per channel pair. > As I read the manual the DSP only supports multi-channel mode when more > than 8 channels are received (Window size). > > Am I right that the only way for me to receive only two channels will be > to have the frame-syncs more than 8 channels apart and then only enable > the first two. (This is a bit annoying, since it will require hardware > changes and add to the power consumption). Sure sounds like it. Can you make 8 4 bit channels and get 32 bits that way? It'll still be a pain in the butt, but might use less power. Patience, persistence, truth, Dr. mike |