Frank Lin wrote: >Latter is an archive mail, now I got the same problem, anyone got resolution >on it? > > >----- Original Message ----- >a.. From: ecos at forumakad dot pl >a.. To: ecos-discuss at ecos dot sourceware dot org >a.. Date: Sun, 20 Feb 2005 15:18:17 +0100 >a.. Subject: [ECOS] redboot, slow upload, load -v -m ymodem failures for >150k >binaries > > > > >>Hello, >>I'm trying to prepare application for EB42 board, unfortunatelly using ROM >>redboot I found that it work way slower than it's RAM counterpart ( I had >>to change speed from 38400 to 9600 to be able to upload anything ). >>Changing speed to 9600 fixed the problem for a while, but after I compiled >>in few options (lwip for example) my binaries grew in size, and now they're >>~170-230k. That wouldn't be a big problem, because the board has 256k RAM, >> >> Be carefull with the RAM that RedBoot uses. The flash functions do reside in RAM. (I don't know how big they are) Regards, Jürgen
>>but I'm unable to upload those binaries to the board using RedBoot, errors >>appear after 160-200k of sent data ( using ymodem method ). >> >> >>This is extreme example, here's hello world: >>[ymodem upload - Press CTRL-C to quit] >>Sending: hello.srec >>Bytes Sent: 161664 BPS:765 >>RedBoot> Transfer complete >>RedBoot> >>Here's the same code with stack +4096 bytes larger: >>arm-elf-size hello.srec: >>text data bss dec hex filename >> 0 53860 0 53860 d264 hello.srec >>it's uploading fine for a few minutes: >>Sending: hello.srec >>Ymodem sectors/kbytes sent: 615/76k >>but then, it goes: >>Retry 0: NAK on sector >>Retry 0: Got 29 for sector ACK >>RedBoot> Retry 0: NAK on sector >>** Error: Retry 0: Got 44 for sector ACK >>RedBoot> Retry 0: NAK on sector >>RedBoot> Retry 0: Got 44 for sector ACK >> >>It happens every time with 'larger' binaries, it happens once in a while >>for smaller ones, but then I just retry and all is well. >> >>When I revert to Angel boot loader, and upload binaries using arm-elf-gdb, >>all is well, and I can upload even ~200k execs, but then when I try to run >>them they just stand still. >> >>What should I do? Is there some known problem with redboot? Should I >>attempt to fix it or maybe just fall back on angel? >>What should I do to be able to create angel/standalone eCos binaries? >> >>-- >>Dariush Pietrzak, >> >> >> > -- Before posting, please read the FAQ: http://ecos.sourceware.org/fom/ecos and search the list archive: http://ecos.sourceware.org/ml/ecos-discuss
