|
I'm now down to just getting a McBSP0 to tx data[tx on peripheral interface is not connected, and yes JP1 is shorted out] by CPU interrupts method. Everything is setup in CSL, and I follow the outline in 'SPRA488B-McBSP Init.' In 'main', I enable interrupt then McBSP for trasmit and frame synch generator. Okay-- I get first interrupt, as I had mapped onto HWI_9 and MCBSP_xrdy tell me i'm ready to write to it, and so data is written to it in the interrupt func. Now I'm in main in a forever while loop waiting for next interrupt. It never happens -- MCBSP_xrdy always read 0 if I poll it. So why does it[McBSP0] end with more no interrupts after being enabled and once written to?? =( Thanks! Chiko |
|
|
McBsp-simple question
Started by ●May 13, 2003
Reply by ●May 15, 20032003-05-15
|
You can get details of mcbsp from spru190d.pdf. In csl of ccs2.1 the address of XCR is wrong with 0x01840010 (it should be 0x18c0010), i.e.: #define _MCBSP_XCR0_ADDR 0x018 4?(c) 0010u Check if this the problem. Tao Wang R&D Engineer ShangHai Orda Opto-electronics Co. ----- Original Message ----- From: "silver_sparrow" <> Date: Tue, 13 May 2003 18:56:42 -0000 To: Subject: [c6x] McBsp-simple question Re: I'm now down to just getting a McBSP0 to tx data[tx on peripheral Re: interface is not connected, and Re: yes JP1 is shorted out] by CPU interrupts method. Re: Re: Everything is setup in CSL, and I follow the outline in Re: 'SPRA488B-McBSP Init.' Re: Re: In 'main', I enable interrupt then McBSP for trasmit and frame Re: synch generator. Re: Re: Okay-- I get first interrupt, as I had mapped onto HWI_9 and Re: MCBSP_xrdy tell me i'm ready to write to it, and so Re: data is written to it in the interrupt func. Re: Re: Now I'm in main in a forever while loop waiting for next interrupt. Re: It never happens -- MCBSP_xrdy always read 0 if I poll it. Re: Re: So why does it[McBSP0] end with more no interrupts after Re: being enabled and once written to?? =( Re: Re: Thanks! Re: Chiko Re: Re: Re: Re: Re: Re: _____________________________________ Re: 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. Re: Re: _____________________________________ Re: About this discussion group: Re: Re: To Join: Send an email to Re: Re: To Post: Send an email to Re: Re: To Leave: Send an email to Re: Re: Archives: http://www.yahoogroups.com/group/c6x Re: Re: Other Groups: http://www.dsprelated.com Re: Re: Re: ">http://docs.yahoo.com/info/terms/ Re: Re: -- _______________________________________________ Sign-up for your own FREE Personalized E-mail at Mail.com http://www.mail.com/?sr=signup |
|
|
Reply by ●May 15, 20032003-05-15
|
Thanks Tao! However according to the bug list: http://www.ti.com/sc/docs/dsps/hotline/techbits/c6bug.htm#SDSsq25431 The address is correct @ 0x01840010 and spru190d.pdf is wrong. Check URL for details... ****************************************************** ****I did get the interrupts going for a DLB config **** for just the McBSP0, in CPU interrupt config ****if anyone wants to files, let me know ****************************************************** Chiko --- Tao Wang <> wrote: > You can get details of mcbsp from spru190d.pdf. > > In csl of ccs2.1 the address of XCR is wrong with > 0x01840010 (it should > be 0x18c0010), i.e.: > > #define _MCBSP_XCR0_ADDR 0x018 4?(c) 0010u > > Check if this the problem. > > Tao Wang > R&D Engineer > ShangHai Orda Opto-electronics Co. > > ----- Original Message ----- > From: "silver_sparrow" <> > Date: Tue, 13 May 2003 18:56:42 -0000 > To: > Subject: [c6x] McBsp-simple question > > Re: I'm now down to just getting a McBSP0 to tx data[tx > on peripheral > Re: interface is not connected, and > Re: yes JP1 is shorted out] by CPU interrupts method. > Re: > Re: Everything is setup in CSL, and I follow the outline > in > Re: 'SPRA488B-McBSP Init.' > Re: > Re: In 'main', I enable interrupt then McBSP for trasmit > and frame > Re: synch generator. > Re: > Re: Okay-- I get first interrupt, as I had mapped onto > HWI_9 and > Re: MCBSP_xrdy tell me i'm ready to write to it, > and so > Re: data is written to it in the interrupt func. > Re: > Re: Now I'm in main in a forever while loop waiting for > next interrupt. > Re: It never happens -- MCBSP_xrdy always read 0 if I > poll it. > Re: > Re: So why does it[McBSP0] end with more no interrupts > after > Re: being enabled and once written to?? =( > Re: > Re: Thanks! > Re: Chiko > Re: > Re: > Re: > Re: > Re: > Re: _____________________________________ |
Reply by ●May 15, 20032003-05-15
|
Now I wish to config, McBSP0 in DLB with EDMA channels 12 & 13 servicing the port. *************************************************** First: The EDMA interrupts are hooked up to HWI 8 in CSL. Second: After setting up the EDMA channels in CSL, 'main' initializes everything and McBSP is started; similar to how its done in spra488b. When I run the program, right after starting McBSP0 there are no interrupts from the EDMA to HWI #8, we just sit in a while loop. I am guessing its a setup prob here, and now in 'hack mode', trying to fix it. :( Can anyone point out anything that may help? Chiko --- Tao Wang <> wrote: > You can get details of mcbsp from spru190d.pdf. > > In csl of ccs2.1 the address of XCR is wrong with > 0x01840010 (it should > be 0x18c0010), i.e.: > > #define _MCBSP_XCR0_ADDR 0x018 4?(c) 0010u > > Check if this the problem. > > Tao Wang > R&D Engineer > ShangHai Orda Opto-electronics Co. > > ----- Original Message ----- > From: "silver_sparrow" <> > Date: Tue, 13 May 2003 18:56:42 -0000 > To: > Subject: [c6x] McBsp-simple question > > Re: I'm now down to just getting a McBSP0 to tx data[tx > on peripheral > Re: interface is not connected, and > Re: yes JP1 is shorted out] by CPU interrupts method. > Re: > Re: Everything is setup in CSL, and I follow the outline > in > Re: 'SPRA488B-McBSP Init.' > Re: > Re: In 'main', I enable interrupt then McBSP for trasmit > and frame > Re: synch generator. > Re: > Re: Okay-- I get first interrupt, as I had mapped onto > HWI_9 and > Re: MCBSP_xrdy tell me i'm ready to write to it, > and so > Re: data is written to it in the interrupt func. > Re: > Re: Now I'm in main in a forever while loop waiting for > next interrupt. > Re: It never happens -- MCBSP_xrdy always read 0 if I > poll it. > Re: > Re: So why does it[McBSP0] end with more no interrupts > after > Re: being enabled and once written to?? =( > Re: > Re: Thanks! > Re: Chiko > Re: > Re: > Re: > Re: > Re: > Re: _____________________________________ > Re: 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. > Re: > Re: _____________________________________ > Re: About this discussion group: > Re: > Re: To Join: Send an email to > > Re: > Re: To Post: Send an email to > Re: > Re: To Leave: Send an email to > > Re: > Re: Archives: http://www.yahoogroups.com/group/c6x > Re: > Re: Other Groups: http://www.dsprelated.com > Re: > Re: > Re: ">http://docs.yahoo.com/info/terms/ > Re: > Re: > > -- > _______________________________________________ > Sign-up for your own FREE Personalized E-mail at Mail.com > http://www.mail.com/?sr=signup > > _____________________________________ > 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/c6x > > Other Groups: http://www.dsprelated.com > ">http://docs.yahoo.com/info/terms/ __________________________________ |
