You are not alone. I have had numerous problems with the 5402DSKs daughter board interface. Its in the CPLD. TI can't give out the code. Its propritary.. I'm sure they had a outside vender do the design. I'd be interested in who. Some of the problems are documented at http://www.signalware.com/dsp/DSP_5402.html After contacting signalware for a fix they said they gave up on the project. I finally decided to disable the UART and patched the daughter board into its io space. What a mess Thats where I'm at now I would be very interested in hearing others problems. Phil --- eran segev <> wrote: > Hello all. > I have a problem which i desperatley need some > help. > I'm using a daughter board which is connected to > the > 5402 > dsk, and i am defining an ioport to read from, but > every > transaction i try to make doesn't work. > I have checked with logic analyzer, and on read > cycle, > i am putting the right data on the data bus, but > when > the dsk io_strobe goes up, it doesn't sample the > correct > value, infact a constact value is read at all > times. > again on writing, when i assign to the port a > value, > only zeros comes to the data bus. > Have any one dealt with similar problem before? > Thanks in advance. > Segev Eran. > > > _____________________________________ > Note: If you do a simple "reply" with your email > client, only the author of this message will receive > your answer. You need to do a "reply all" if you > want your answer to be distributed to the entire > group. > > _____________________________________ > About this discussion group: > > To Join: Send an email to > To Post: Send an email to > > To Leave: Send an email to > Archives: http://www.yahoogroups.com/group/c54x > > Other Groups: http://www.dsprelated.com > ">http://docs.yahoo.com/info/terms/ __________________________________________________

Is the DMSEL setting correct? Before accessing any external memory, the DMSEL must be set HIGH. It's on the user option DIP switches, and it also mapped at address 0x0002. ----- Original Message ----- From: "eran segev" <> To: <> Sent: Monday, January 21, 2002 10:09 PM Subject: [c54x] DaughterBoard integration with a C5402 DSK Hello all. I have a problem which i desperatley need some help. I'm using a daughter board which is connected to the 5402 dsk, and i am defining an ioport to read from, but every transaction i try to make doesn't work. I have checked with logic analyzer, and on read cycle, i am putting the right data on the data bus, but when the dsk io_strobe goes up, it doesn't sample the correct value, infact a constact value is read at all times. again on writing, when i assign to the port a value, only zeros comes to the data bus. Have any one dealt with similar problem before? Thanks in advance. Segev Eran. _____________________________________ Note: If you do a simple "reply" with your email client, only the author of this message will receive your answer. You need to do a "reply all" if you want your answer to be distributed to the entire group. _____________________________________ About this discussion group: To Join: Send an email to To Post: Send an email to To Leave: Send an email to Archives: http://www.yahoogroups.com/group/c54x Other Groups: http://www.dsprelated.com ">http://docs.yahoo.com/info/terms/

Hello all. I have a problem which i desperatley need some help. I'm using a daughter board which is connected to the 5402 dsk, and i am defining an ioport to read from, but every transaction i try to make doesn't work. I have checked with logic analyzer, and on read cycle, i am putting the right data on the data bus, but when the dsk io_strobe goes up, it doesn't sample the correct value, infact a constact value is read at all times. again on writing, when i assign to the port a value, only zeros comes to the data bus. Have any one dealt with similar problem before? Thanks in advance. Segev Eran.