Do TI have BDSL files for the MSP? I cannot find them on the TI website. Without these, you cannot access pins around the device to perform boundary scan testing, since you have no idea about what pins you may be accessing. (Perhaps they do not support boundary scan, however, that is why JTAG came into existence (At least, I though this was why!)
It only appears that TI describe some of the JTAG states that will allow access to various parts of the device internals, useful for programming and debugging.(see http://www-s.ti.com/sc/psheets/slaa149/slaa149.pdf) Cheers Harry Home office phone (03) 9504 1957 hlemm...@optushome.com.au -----Original Message----- From: mspgcc-users-ad...@lists.sourceforge.net [mailto:mspgcc-users-ad...@lists.sourceforge.net]on Behalf Of Steven Johnson Sent: Wednesday, January 28, 2004 4:52 PM To: mspgcc-users@lists.sourceforge.net Subject: Re: [Mspgcc-users] Programming multiple MSP430's on a board Set the id by a code on unused GPIO (if any). 5 spare bits will give you 32 ID's. So the devices location on the board defines it's id. Dan Miner wrote: > Yes, this sounds like it will work for me. Thanks for the > information. > > I'll need 2 or 3 connectors but that's lots better than 16 to 20 > of them. FYI - I found the gang programmer specification here: http://focus.ti.com/lit/ug/slau101a/slau101a.pdf > > I haven't had time to read it all yet (I'll do that tomorrow). > But after a quick look, it seems that the same program image > needs to go to all devices. I was hoping to have a different > image for each device. Specifically, 99% of the code is the > same with a device ID in Flash or EEPROM. I need to have each > device know which one it is on the board. > > Any ideas on that? If the programmer can't support it > directly, I'm sure I'll think of something... > > - Dan Miner > > >>-----Original Message----- >>From: Steve Underwood [mailto:ste...@coppice.org] >>Sent: Tuesday, January 27, 2004 5:35 PM >>To: mspgcc-users@lists.sourceforge.net >>Subject: Re: [Mspgcc-users] Programming multiple MSP430's on a board >> >> >>Hi Dan, >> >>TI sell a gang programmer which does basically what you want for >>production. It keeps most of the JTAG lines common for up ro >>8 devices, >>and uses just one special wire for each device to select >>which one gets >>programmed. This idea could be extended to a greater number >>of devices. >>The development tools, on the other hand, do not currently >>support this >>type of operation. They are designed for one-to-one >>connections between >>the JTAG tool and the device. If you can live with a >>connector per MCU >>for development, naybe this will work out OK for you. >> >>Regards, >>Steve >> >>Dan Miner wrote: >> >> >>>I have an application where I'll have multiple MSP430's on >>>the same board. Since the programming interface is JTAG it >>>should be a trivial matter to daisy chain the chips together >>>so they can all be programmed from a single connector. >>>I don't have the space for one connecter per MSP. >>> >>>However the word I got from TI is that their software doesn't >>>support this. Does anyone know a way to do this? Does the >>>mspgcc tool set support this? If not, can someone add this >>>functionality to the tool set? >>> >>>I'll have prototype hardware in a week or two. For software >>>development, we added a connector per MSP, but we'll need to >>>get rid of those for production. >>> >>>FYI - The production boards will have 16 to 20 MSP430's on >>>them so the connectors take up a LOT of space. > > > > ------------------------------------------------------- > The SF.Net email is sponsored by EclipseCon 2004 > Premiere Conference on Open Tools Development and Integration > See the breadth of Eclipse activity. February 3-5 in Anaheim, CA. > http://www.eclipsecon.org/osdn > _______________________________________________ > Mspgcc-users mailing list > Mspgcc-users@lists.sourceforge.net > https://lists.sourceforge.net/lists/listinfo/mspgcc-users > > ------------------------------------------------------- The SF.Net email is sponsored by EclipseCon 2004 Premiere Conference on Open Tools Development and Integration See the breadth of Eclipse activity. February 3-5 in Anaheim, CA. http://www.eclipsecon.org/osdn _______________________________________________ Mspgcc-users mailing list Mspgcc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/mspgcc-users
