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A very strange problem for my bootloader code
Hi, I have struggled with this bug for a day now, and still can't figure out, I think I might missed something. I'm using mega1281 in 5V and 16Mhz, and have 3 SPI slaves, a RF...
Saturday, 14 October 2006 - 08:23
New AVR Libc !!!
Hi, I just notice that AVR Libc released 1.4.5 which support 2560 and 2561!!! but I'm still using WinAVR 20060421, so how to lnclude the avr-libc-1.4.5 folder into the current...
Thursday, 12 October 2006 - 14:03
begging for the way to include C file in another folder
Hi, guys, I still can't get a way to include a C source file in another folder in makefile. I want to include a C source file from a fixed harddisk path, say I want to lnclude...
Tuesday, 3 October 2006 - 18:52
question about basic C standard for operators
Hi, guys, I just found out a bug in my code was due to my misunderstanding of operation result in C. So then I'm wondering if the following assumption of mine is correct: the...
Monday, 2 October 2006 - 13:55
is boot_lock_bits_set(_BV(BLB12)) BLB1 mode 2?
Hi, I just nitice a problem for letting my bootloader lock the fuse bit to BLB1 mode2. on the Bootloader Support Utilities of avr-libc, it said: Quote: For example, to disallow...
Sunday, 1 October 2006 - 09:44
strange problem with WTR reset
Hi, I just got a strange problem for WTR in my bootloader. After the new program been loaded into the flash, I have a WTR reset in order to start application: wdt_enable(...
Saturday, 30 September 2006 - 16:24
Is watchdog timeout reset all the registers in AVR?
hehe, i think for you guys, this question seems too simple to be answered, but I never use watchdog timer before, and I saw the datasheet of mga1281 said it will reset all the 'I/...
Saturday, 30 September 2006 - 12:02
what's wrong with this bootloader jump?
now I'm using Code: void (*start_bootloader)(void) = (void *)BOOTLOADER_ADDRESS; ... ... start_bootloader(); and this is the asm code for start_bootloader(); Code: a78: ff...
Friday, 29 September 2006 - 11:47
is this bootloader jump C code correct?
Hi, just a simple question, in my C code, I wrote the following for jump from application section to bootloader section, I use mega1281 and 4K word of bootloader size now void...
Thursday, 28 September 2006 - 09:01
anyway to let TeraTerm pad the last xmodem packet with 0xFF?
Hi, I found out that TT will pad the last Xmodem-CRC packet with 0x1A. hehe, I just became a little bit picky here, is there anyway to change TT to make it pad 0xFF instead?
Wednesday, 27 September 2006 - 10:49
is this app jump in my bootloader code correct?
Hi, just checking the asm code for my mega128 4K words bootloader now and I found out that void (*startApplication)( void ) = 0x0000; ... ... startApplication();...
Tuesday, 26 September 2006 - 14:36
why my int doesn't work in BLS?
Hi, I just found out that the interrupt routines don't work in my bootloader code. In the begining of the code I wrote: MCUCR = _BV(IVCE); MCUCR = _BV(IVSEL); And then I...
Tuesday, 26 September 2006 - 13:14