Hi Tangwei The SRAM startup is not intended for loading with Redboot, but for JTAG or alike. You can upload it (the elf file) with J-link.
Regards Ilija On 20.06.2012 08:19, tangwei wrote: > Dear all, Have troubles with Kinetis kwikstik when use redboot RAM startup > . I am a freshman to eCos,below is the steps about my troubles: > 1. use the last CVS-eCos build the redboot from the template with no > changes,and get the redboot.elf;2. use arm-eabi-objcopy to get the > redboot.bin;3. use the J-link commander to download the redboot.bin in > kwikstik' flash from address 0x00;4. reset kwikstik,the redboot can startup > successful. now I want to try the RAM startup for redboot1. same as above's > step 1, I only change the template's start-up option from ROM startup to SRAM > startup,get the redboot.elf;2. use arm-eabi-objcopy to get the redboot.bin;3. > use minicom,after the kwikstik start successful from flash, and give the > "RedBoot >" as below: RedBoot(tm) bootstrap and debug environment > [ROM] Non-certified release, version UNKNOWN > - built 10:12:01, Jun 14 2012 > Copyright (C) 2000, 2001, 2002, > 2003, 2004, 2005, 2006, 2007, 2008, 2009 Free Software Foundation, > Inc. RedBoot is free > software, covered by the eCos license, derived from the GNU > General Public License. You are welcome to change it and/or distribute > copies of it under certain conditions. Under the license terms, RedBoot's > source code and full license terms must have been made available to > you. Redboot comes with ABSOLUTELY NO WARRANTY. Platform: > Freescale KwikStik (Cortex-M4) RAM: > 0x1fff8000-0x20007000 [0x1fffb6a8-0x20007000 available] > RedBoot> > 4. in the minicom console, input command RedBoot > load -v -m ymodem,and then > send the file redboot.bin from setp 2, the trouble becomming , it can't send > the redboot.bin correctly, > the minicom send file's diaglog is below > +-----------[ymodem upload - Press CTRL-C to quit]------------+ > |Sending: redboot.bin | |Ymodem > sectors/kbytes sent: 0/ 0kRetry 0: NAK on sector | |Ymodem > sectors/kbytes sent: 2/ 0kRetry 0: Cancelled | | > | |Transfer > incomplete | | > | | READY: press any > key to continue... > |+-------------------------------------------------------------+ > after press any key,the console gives below: > RedBoot> load -v -m ymodem > CUnrecognized image type: 0x20008000 > xyzModem - CRC mode, 3(SOH)/0(STX)/0(CAN) packets, 3 retries > RedBoot> > That's all, can anybody please help me? Are there any steps I did above were > wrong? ThanksOr could anyone give me the right steps to startup redboot from > RAM? > -- Before posting, please read the FAQ: http://ecos.sourceware.org/fom/ecos and search the list archive: http://ecos.sourceware.org/ml/ecos-discuss
