
Technical discussions related to Analog Devices DSPs (including Blackfin, TigerSHARC, SHARC and ADSP-21xx DSPs).
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Hi, I've recently started up my 'ADSP21161N EZ-LITE' development kit. When I try to use the serial port the serial port interrupt is continously triggered and the program gets into a locked state. Why is the port triggering, there is nothing connected to it? The serial clock and the frame is generated internally. Whatever SPORT (0,1,2,3) i use I get the same result. As soon as I enable it, it locks up with incoming interrupts. Regards, Ulf Ohgren |
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Try do disable the interrupt source inside the service routine and see which one helps. Had something like that when I forgot to serve the second half of the port. For example SPORT0 channel A+B active, you get an interrupt for transmit and only fill channel A with data, after I filled both it went away. Jens ----- Original Message ----- From: "Öhgren, Ulf" <> To: <> Sent: Thursday, July 03, 2003 1:44 PM Subject: [adsp] ADSP21161 EZ-kit SPORT problems... > Hi, > > I've recently started up my 'ADSP21161N EZ-LITE' development kit. When I try > to use the serial port the serial port interrupt is continously triggered > and the program gets into a locked state. > Why is the port triggering, there is nothing connected to it? > The serial clock and the frame is generated internally. > Whatever SPORT (0,1,2,3) i use I get the same result. As soon as I enable > it, it locks up with incoming interrupts. > Regards, > Ulf Ohgren > _____________________________________ > /groups.php3 |