Reply by Al Clark September 21, 20022002-09-21
At 11:05 AM 9/20/2002, you wrote:
Any ADSP2191 users here try booting from the UART?

I seem to be fulfilling all the requirements but the DSP doesn't
start up.

Here are the steps I'm following:
<UART boot (ez-lite jumpers set to off-on-off)>
1. setup binary loader file in VDSP
2. send "0xaa" for the DSP's autobaud routine
3. wait for a "K" to be returned from the dsp
4. upon the pc's reception of the "K" begin transmission of the
binary file

My c based windows (polling tx) serial program completes steps 2-4. I
get "K" back and complete transmission of a binary file which is
17293 bytes long but the DSP doesn't seem to be running my program.
The program I'm transfering was tested previously using the EZ-Lite
board USB port.

Regards,
Tim Dahlin

Tim, your terminal may be sending ASCII instead of binary. You are right
that the ldr file must be in binary.
I use Tera Term for this purpose. You can download a copy from our website. The second possibility is the Visual DSP version. Version 2 must have SP1
installed!!!! The loader does not work otherwise (at least with SPI which
is almost identical).

Version 3 also has a loader problem. You can get the correction from ADI.

Al Clark
Danville Signal Processing, Inc.
--------------------------------
Purveyors of Fine DSP Hardware and other Cool Stuff
Available at http://www.danvillesignal.com


Reply by twd2950 September 20, 20022002-09-20
Any ADSP2191 users here try booting from the UART?

I seem to be fulfilling all the requirements but the DSP doesn't
start up.

Here are the steps I'm following:
<UART boot (ez-lite jumpers set to off-on-off)>
1. setup binary loader file in VDSP
2. send "0xaa" for the DSP's autobaud routine
3. wait for a "K" to be returned from the dsp
4. upon the pc's reception of the "K" begin transmission of the
binary file

My c based windows (polling tx) serial program completes steps 2-4. I
get "K" back and complete transmission of a binary file which is
17293 bytes long but the DSP doesn't seem to be running my program.
The program I'm transfering was tested previously using the EZ-Lite
board USB port.

Regards,
Tim Dahlin