Sign in
Search motoroladsp
Subscribe to motoroladsp
motoroladsp by Keywords
56303 | 563xx | 5680 | 56805 | 5680x | 56F80 | 56F800DEMO | 56F805 | 56f807 | 56F830 | ADC | Bootloader | Codec | CodeWarrior | CW5 | CW6 | Debugger | DSP56303 | DSP56303EVM | DSP563xx | DSP5680 | DSP56800 | DSP56807 | DSP56858 | DSP56858EVM | DSP56F803 | DSP56F805 | DSP56F807 | DSP56F80x | DSP56F826 | DSP56F827 | DSP56F8xx | EVM | FFT | Flash_over_jtag | GPIO | Interrupt | Interrupts | JTAG | LCD | Linker | MCF5307 | Metrowerks | Modulus | MSCAN | PCMaster | PWM | Quad | Rif | RTOS | SDK | SPI
Sponsor
Discussion Groups
See Also
Discussion Groups | Freescale DSPs | DSP board
Technical discussions about Freescale (Motorola) DSPs (including the DSP56000, DSP56300, DSP56600, 56800 DSPs).
DSP board - Henry Wijaya - Jan 31 12:58:00 2001
|
Hi people, I wanted to expand the external memory on the 563xx EVM boards, but it doesn't seem possible since the EVM boards don't have any memory expansion connectors. So I was thinking of building a whole new DSP board just by 'following' the EVM's schematics and add as much external memory (SRAM) as I wish. Is it possible to succesfully build a working DSP board this way? Is there any firmware issue or other things I should be aware of? Has anyone had any experience in this matter? Thanks in advance! Henry _________________________________________________________________ Get your FREE download of MSN Explorer at http://explorer.msn.com |
|
|
New Code Sharing Section now Live on DSPRelated.com. Learn about the Reward Program for Contributors here.
(You need to be a member of motoroladsp -- send a blank email to motoroladsp-subscribe@yahoogroups.com )
Re: DSP board - Jeff Brower - Feb 1 20:51:00 2001
|
Henry- > Hi people, I wanted to expand the external memory on the 563xx EVM >boards, but it doesn't seem possible since the EVM boards don't have any >memory expansion connectors. So I was thinking of building a whole new DSP >board just by 'following' the EVM's schematics and add as much external >memory (SRAM) as I wish. Is it possible to succesfully build a working DSP >board this way? Is there any firmware issue or other things I should be >aware of? Has anyone had any experience in this matter? That should work fine. the schematics are accurate, and the design is very basic and you should have no problem with layout, component placement, or other assembly issues. You might start with the 56311 EVM board; for external memory accesses it uses AA0 for Chip Select and either DAB15 or AA3 to select 64k x 24 unified or separate 32k x 24 X: and Y: areas. The approach used on the 56311 EVM is flexible from a software algorithm point of view, but still simple to implement in hardware -- it would be a good approach to expand upon. Jeff Brower DSP sw/hw engineer Signalogic |
New Code Sharing Section now Live on DSPRelated.com. Learn about the Reward Program for Contributors here.
(You need to be a member of motoroladsp -- send a blank email to motoroladsp-subscribe@yahoogroups.com )