|
At 08:43 PM 4/26/2004, duhlynn wrote: >You'll need to send the byte value of 0xaa. As Al pointed out, you >could also use term term pro and hold ALT then type 170. Here's a hex >editor that will let you create a file with the byte value of 0xaa... > http://www.chmaas.handshake.de/delphi/freeware/xvi32/xvi32.htm... >You'll still need some means to send binary file over the serial port >though(like tera term pro). > >In my experience, loader files under 4K can be loaded at 115200. >Loader files in excess of 115K can successfully loaded at 19200-38400. The maximum speed of the transfer is dependent on the operating clock of the DSP. Calculate the values that you can set the baud generator for with the xtal and clock settings on your system. This will suggest how fast you can set the transfer. Are you setting the Clock Multiplier in hardware? My first 2191 board didn't work because the PLL was not working properly. The IO Power Supply is used for the PLL. I had a fairly low impedance supply for I/O, but not good enough I was trying to use a two layer pcb (I poured the Vcore supply under the 219x and assumed the I/O supply was not too important). I changed to a four layer pcb and everything worked well to 160 MHz. In my design, I set the clock multiplier in software. This turned out to be very helpful, since my programs ran with the oscillator in buffer mode and failed when I initialized the PLL even at the same frequency. This won't affect booting, but are you using Rev 1.0 silicon? There is a very serious DMA problem with all 0.x silicon THAT YOU WANT TO AVOID. See the ADI Errata. Al Clark Danville Signal Processing, Inc. -------------------------------- comp.dsp conference July 28 - Aug 1, 2004 details at http://www.danvillesignal.com/index.php?id=compdsp email: Who says you can't teach an old dog a new DSP trick? |
|
|
2189_example_codes
Started by ●April 7, 2004
Reply by ●April 27, 20042004-04-27
Reply by ●April 27, 20042004-04-27
Reply by ●April 27, 20042004-04-27
|
At 10:37 AM 4/27/2004, duhlynn wrote: >Actually, ALT then type 166 gives 0xaa. 0xAA = 16 * 10 + 10 = 170 166 = 0xA6 Al Clark Danville Signal Processing, Inc. -------------------------------- comp.dsp conference July 28 - Aug 1, 2004 details at http://www.danvillesignal.com/index.php?id=compdsp email: Who says you can't teach an old dog a new DSP trick? |
Reply by ●April 28, 20042004-04-28
|
Hi i m trying to modify flah programmer in order to program AMD Flash (it's an ST one on Ez Kit) I've just modify few code (erase, ID), but it doesn't works : unable to write Does anybody try to program AMD flah with programmer? I saw that EMICTL is 0x38 for ST but it's an 8 bit flash : why configure 16 bit Thanks in advance |
Reply by ●April 28, 20042004-04-28
|
At 02:48 PM 4/28/2004, you wrote: >Al, > >ALT + 170 gives you 0xaa??? > >I tried a couple different WIN98 editors and my results are... >ALT + 170 = 0xa5 >ALT + 166 = 0xaa > >I'm curious as to why there is a difference.... >Might just be my work machine.... > >Tim Dahlin I can't say I've ever looked on an editor that would display the file in Hex directly but If you type in Alt 65 you would see an 'A' which is also 0x41. Alt 170 is the same as 0xAA which will typically be some kind of extended ASCII in a text editor. I have no idea how you the values you report. I do know that the autobaud always works with Alt 170. Al Clark Danville Signal Processing, Inc. -------------------------------- comp.dsp conference July 28 - Aug 1, 2004 details at http://www.danvillesignal.com/index.php?id=compdsp email: Who says you can't teach an old dog a new DSP trick? |
|
|
Reply by ●April 29, 20042004-04-29
|
Hi Is there somebody has tried to access external flash (RD and WR) from running program on ADSP2191 : CS Flah is MS0 and BMS Thanks in advance |
|
|
Reply by ●April 29, 20042004-04-29
|
In my current design, I use a 4MW flash with the CS~ driven by the logical and of BMS~ and MS1~. I didn't want to have to fool with setting registers to access PAGE 0 of MS0~. Main purpose of going with a large flash was to store various tables, FPGA configurations, and program overlays. Tim Dahlin --- In , stephane.gouel@a... wrote: > Hi > > Is there somebody has tried to access external flash (RD and WR) from running > program on ADSP2191 : CS Flah is MS0 and BMS > Thanks in advance |
Reply by ●April 29, 20042004-04-29
|
Dear stephane, I am trying to do a similiar thing with the ADSP-21992. I have had only mixed success, but maybe i can help. Sincerely, ED --- In , stephane.gouel@a... wrote: > Hi > > Is there somebody has tried to access external flash (RD and WR) from running > program on ADSP2191 : CS Flah is MS0 and BMS > Thanks in advance |
