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Don't afraid. linker.cmd is simple. If you compare my file ahd original file you can see that I have done little changes. The line: .bflash_ext (RX) : ORIGIN = 0x7000, LENGTH = 0x0DFF # boot flash memory extension is to define the new segment in normal flash where you can put your boot code. The section: .main_application_program : { # .text sections # * (.text) bootstart.c (.text) flashprog.c (.text) prog.c (.text) sparser.c (.text) } > .bflash now specific the projec file name to put in boot sector. In original file the * (.text) mean tha all file must put in bflash and now I specific the file name. The new section: .main_extension_application_program : { # .text sections bootloader.c (.text) com.c (.text) spidrivers.c (.text) mmcdrv.c (.text) mmcfat.c (.text) mmc.c (.text) * (rtlib.text) } > .bflash_ext specific the file name tu be in new bflash_ext segment. This is all. If you need more help please contact me. Regards, "Mohammad Serjooei - Per: Kar-Tech, Inc." Cc: <Mohammad@kar-tec Oggetto: Re: Rif: Re: Rif: [motoroladsp] Bootloading h.com> through CAN bus 06/12/02 18.24 Per favore, rispondere a Mohammad I've had no experience on linker.cmd file. I've been using an example of CodeWarrior. So I have no idea how to change that to work for me. Do you know any document for link commands? I'm sending the linker.cmd attached to this massage. If making changes is easy please do that for me. I'm also wondering that changing linker.cmd is enough and compiler takes care of everything or I have do something especial to jump from original boot flash to the extesion part. Thanks in advance, Mohammad To: From: Date sent: Fri, 6 Dec 2002 17:07:54 +0100 Subject: Rif: Re: Rif: [motoroladsp] Bootloading through CAN bus Try it now. My firewall had cut .cmd files. I'm also interest to a bootloader via CAN!!! ----- Inoltrato da Giuliano Tognon/QEM/IT il 06/12/02 17.07 ----- Giuliano Tognon Per: 06/12/02 17.04 Cc: Oggetto: Rif: Re: Rif: [motoroladsp] Bootloading through CAN bus Try now Regards, ----- Inoltrato da Giuliano Tognon/QEM/IT il 06/12/02 17.04 ----- Giuliano Tognon Per: 06/12/02 15.42 Cc: Oggetto: Rif: Re: Rif: [motoroladsp] Bootloading through CAN bus(Document link: Giuliano Tognon) (See attached file: linker.zip) You must add the "bflash_ext" segment in linker.cmd file as you can see in attached file. Please be sure that your firmware not exceed 0x7000 address. Regards, "Mohammad Serjooei - Per: Kar-Tech, Inc." Cc: <Mohammad@kar-tec Oggetto: Re: Rif: [motoroladsp] Bootloading through CAN h.com> bus 06/12/02 15.24 Per favore, rispondere a Mohammad Since we have no external flash in many of our applications we prefer to have an extension with internal flash. Could you please let me know about the details. I'm pretty sure 4Kw would work for us. Have you done this by linker commands? I highly appreciate your help. Thanks Subject: Rif: [motoroladsp] Bootloading through CAN bus To: Copies to: From: Date sent: Fri, 6 Dec 2002 08:52:09 +0100 If you want you can increase boot sector size using normal internal flash sectors. Actual boot sector is not different from other sectors, is only extern if you start in mode B so you can boot from an external memory. I have a boot loader that is 4Kword (2Kw boot sector + 2Kw of normal internal flash) and can receive program boot both from serial or from a MultiMediaCard. Thanks "Mohammad Serjooei - Per: Kar-Tech, Inc." Cc: <Mohammad@kar-tec Oggetto: [motoroladsp] Bootloading through CAN bus h.com> 05/12/02 17.13 Per favore, rispondere a Mohammad We've been using bootloader initially JTAGed into Boot Flash in order to download the application code via serial port. At the moment we need to download the application code via CAN bus instead of serial port. Our major problem is the small size of boot flash which is almost filled with the supplied bootloader by CW and made it impossible to change bootloader to interface through CAN bus to get the application code. Has anybody any experience in this regard. I would appreciate any information regarding this. Thanks, MohammadKar-Tech Inc. Tel: (262) 646-9444 ext. 232 Fax: (262) 646-9445 E-mail: Visit us on the web at http://www.kar-tech.com _____________________________________ 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: To Post: To Leave: Archives: http://www.yahoogroups.com/group/motoroladsp More Groups: http://www.dsprelated.com/groups.php3 ">http://docs.yahoo.com/info/terms/ Kar-Tech Inc. Tel: (262) 646-9444 ext. 232 Fax: (262) 646-9445 E-mail: Visit us on the web at http://www.kar-tech.com Kar-Tech Inc. Tel: (262) 646-9444 ext. 232 Fax: (262) 646-9445 E-mail: Visit us on the web at http://www.kar-tech.com The following section of this message contains a file attachment prepared for transmission using the Internet MIME message format. If you are using Pegasus Mail, or any another MIME-compliant system, you should be able to save it or view it from within your mailer. If you cannot, please ask your system administrator for assistance. ---- File information ----------- File: linker.cmd Date: 2 Apr 2001, 9:09 Size: 4404 bytes. Type: Binary (See attached file: linker.cmd) Date: 12/ 9/2002 09:34:32 File: linker.cmd Action: Blocked; | |||
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