FreeRTOS Support Archive
The FreeRTOS support forum is used to obtain active support directly from Real
Time Engineers Ltd. In return for using our top quality software and services for
free, we request you play fair and do your bit to help others too! Sign up
to receive notifications of new support topics then help where you can.
This is a read only archive of threads posted to the FreeRTOS support forum.
The archive is updated every week, so will not always contain the very latest posts.
Use these archive pages to search previous posts. Use the Live FreeRTOS Forum
link to reply to a post, or start a new support thread.
[FreeRTOS Home] [Live FreeRTOS Forum] [FAQ] [Archive Top] [March 2007 Threads] IAP(In-Application Programming) with FreeRTOSPosted by Nobody/Anonymous on March 13, 2007 I install ST's IAP (http://www.st.com/stonline/products/literature/an/12951.htm) on STR910-EVAL and it can download program by UART . Now I want to download FreeRTOS kernel , but it can't execute normally.
I config the flash bank1 as boot bank . I try the example app in IAP , it can work , but my FreeRTOS can't . Because I want to use IAP as bootloader.
Does any one have the same problem ?
RE: IAP(In-Application Programming) with FreeRTOSPosted by Nobody/Anonymous on March 13, 2007 Not a direct answer as I have never used the IAP, but when the freertos starts is the processor in supervisor mode? If not then it will not start.
RE: IAP(In-Application Programming) with FreeRTOSPosted by Nobody/Anonymous on March 13, 2007 I add one line in IAP before it calls the FreeRTOS : asm ("MSR CPSR_c, #0x13); to config CPU mode to supervisor mode , but FreeRTOS can't execute , too .
Because IAP exchanged bank0 and bank1 position in flash , and I found in FreeRTOS source file lnkarm_flash.xcl have the following commands : // Code memory in flash -DROMSTART=0x00000000 -DROMEND=0x00080000 -DVECSTART=ROMSTART
so I change it to : -DROMSTART=0x00080000 -DROMEND=0x03FFFFFF -DVECSTART=ROMSTART
But it doesn't work.
I also found source file main.c , the prvSetupHardware function have: /*Set Flash banks size & address */ FMI_BankRemapConfig( 4, 2, 0, 0x80000 );
and I change it to : FMI_BankRemapConfig( 2, 4, 0, 0x80000 );
It doesn't work , too .
I don't know why the FreeRTOS still can't run now.
Copyright (C) Amazon Web Services, Inc. or its affiliates. All rights reserved.
|