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Dear Group I am doing a hardware design with a TMS320VC5402. The processor needs to load the program from flash memory on my board. I do not understand from what address in memory the bootloader starts to load the program. I see from the documentation that it reads a word from IO address 0FFFFh and that will specify the start address of the program residing in flash. But how do I setup this IO input on the hardware? This design of mine will be a standalone audio processor that needs to load the program from flash to on-chip program memory space, before the execution starts. Rgds Jean Viljoen Development Engineer Azoteq (Pty) Ltd Tel: +27 21 863 0033 Fax: +27 21 863 1512 |
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C5402 Bootloader
Started by ●August 27, 2002
Reply by ●August 27, 20022002-08-27
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Jean See the following (All available on the TI site) SPRA618A SPRA723F SPRA773 SPRA774 The documents covers this question in reasonable detail. You might want to think about booting from the HPI as this is, I believe, easier to handle. Jerry. ----- Original Message ----- From: "Jean Viljoen" <> To: "'C54x DSP Discussion Group'" <> Sent: Tuesday, August 27, 2002 8:53 AM Subject: [c54x] C5402 Bootloader > Dear Group > > I am doing a hardware design with a TMS320VC5402. The processor needs to load the program from flash memory on my board. I do not understand from what address in memory the bootloader starts to load the program. I see from the documentation that it reads a word from IO address 0FFFFh and that will specify the start address of the program residing in flash. But how do I setup this IO input on the hardware? This design of mine will be a standalone audio processor that needs to load the program from flash to on-chip program memory space, before the execution starts. > > Rgds > > Jean Viljoen > Development Engineer > > Azoteq (Pty) Ltd > Tel: +27 21 863 0033 > Fax: +27 21 863 1512 > > _____________________________________ > 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/ > |
Reply by ●August 27, 20022002-08-27
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--- In c54x@y..., Jean Viljoen <jean.viljoen@a...> wrote: > Dear Group > > I am doing a hardware design with a TMS320VC5402. The processor needs to load the program from flash memory on my board. I do not understand from what address in memory the bootloader starts to load the program. I see from the documentation that it reads a word from IO address 0FFFFh and that will specify the start address of the program residing in flash. But how do I setup this IO input on the hardware? This design of mine will be a standalone audio processor that needs to load the program from flash to on-chip program memory space, before the execution starts. To be more precise, the '5402 bootloader will read I/O address 0FFFFh, see if it points to a valid boottable in -data- space; if not, read -data- address 0FFFFh and see if it points to a valid boottable in -data- space. If your hardware isn't decoding I/O space, you can just use data space. Your design should store a boottable directly in your flash, and let the bootloader unpack it directly to program space, as opposed to going through an extra step. I wrote a message here a few weeks with source code for doing this on the DSK, which should be adaptable to your hardware. |
