回复： RE: PORESET and SWT
pegasus wu <[email protected]>
| Newsgroups | gmane.comp.hardware.motorola.microcontrollers |
|---|---|
| Message-ID | <[email protected]> |
Hi, dear Allan!
It's so kind of you!
In my board I have not extended the Data bus and I think let the RSTCONF* is pulled up to 3.3V through a 10K resistor and it should read the reset configuration word form the shadow and then boot from the internal flash. The attached file is my .sch file.I am really wish someone can affirm whether it is right or not!
If it's right for the minimum MPC555 system, then maybe it is just the problem of register just as you mentioned!
Butv I really don't konw how to program the reset configuration word solely.
My programming platform is from windriver system - Tornado for OSEKWorks. And the burnning software is visionClick 7.0. But i am not familiar to it!
With regard to the demo board,the manual is said as follows:
1.Select the “00: MPC555 K1,2,3,M ( 448 x 8 ) 1 Device” Driver.
2.Use internal RAM workspace starting at 0x003F9800.
3.Set physical flash Base Address to 0x0.
4.PREPARE the special *.BIN file and specify its path and file
name.
5.enable VPP to 5v, epee t0 3.3v and force Sys. rstcnf* connected
to sreset* ,Clock to 40MHz.
6.Click on “Erase-only”. This will erase BOTH Shadow and Main
Arrays.
7.check that the CMFMCR_A SIE bit is
set to “0”Program data into Main array (448K-bytes),
But in the demo board, the RSTCONF* is set to Hreset*, the D20 is set to "1", and the CPU read the reset configuration word form the external Data bus.
Have you ever used the visionClick 7.0 to program the reset configuration word in shadow flash to 0x0000
or program the internal flash with your program?
As I kown through the above steps, when use "erase" , it will erase BOTH Shadow and Main Arrays.
what can i do by wisionClick to achieve this? I really appreciate much for your help!
Best regards!
wu
---------------------------------
DO YOU YAHOO!?
雅虎免费G邮箱－中国第一绝无垃圾邮件骚扰超大邮箱
[Non-text portions of this message have been removed]
------------------------ Yahoo! Groups Sponsor --------------------~-->
<font face=arial size=-1><a href="http://us.ard.yahoo.com/SIG=12hrqjukp/M=362329.6886308.7839368.1510227/D=groups/S=1706554205:TM/Y=YAHOO/EXP=1124293919/A=2894321/R=0/SIG=11dvsfulr/*http://youthnoise.com/page.php?page_id=1992
">Fair play? Video games influencing politics. Click and talk back!</a>.</font>
--------------------------------------------------------------------~->
-----------------------------------------------------------
To learn more about Freescale Microcontrollers, please visit
http://www.freescale.com/mcu
Yahoo! Groups Links
<*> To visit your group on the web, go to:
http://groups.yahoo.com/group/MPC500/
<*> To unsubscribe from this group, send an email to:
[email protected]
<*> Your use of Yahoo! Groups is subject to:
http://docs.yahoo.com/info/terms/