Comments (2)
From datasheet it might be a problem related to:
For I/O registers
located in extended I/O map, "IN", "OUT", "SBIS", "SBIC", "CBI", and "SBI" instructions must be replaced with
instructions that allow access to extended I/O. Typically "LDS" and "STS" combined with "SBRS", "SBRC", "SBR",
and "CBR".
For example, yiou can put following code inside init_spi (in asmfunc.S):
lds r16,DDRH ; sbr r16,0x80 ; EN: output sts DDRH, r16 ;
and
lds r16,PORTH ; cbr r16,0x80 ; EN: output sts PORTH, r16 ;
note that this example is for pin enable on H.7
from avr_boot.
Thanks @anatom74! I'm caught up in other projects right now but I am definitely planning to try to resolve some issues and make some improvements to avr_boot at some point in the future. Of course if someone gets around to doing it before me I surely don't mind!
from avr_boot.
Related Issues (20)
- Can't compile for ATmega64A, 128, 128A, 32, 32A HOT 3
- SAMD21 support? HOT 3
- Set low a pin before bootloading HOT 9
- Boot Reset vector HOT 25
- Question: Is it possible to choose between .hex files? HOT 1
- SD Bootloader HOT 9
- Changing CS to Pin 14 HOT 4
- File not mounted HOT 1
- ATmega4809 support?
- Question: Is it possible to use Software Spi? HOT 2
- Very confused about manual instalation
- avr boot SD Bootloader for Arduino HOT 1
- Confused about the Use / Non Use with AVR HOT 1
- Which File To Take When Exporting Compiled Binary? HOT 1
- Which hex file for Uno R3?
- ATmega2560 support HOT 16
- Add support for Standard Serial Programming HOT 58
- Make file not compiling with WinAVR 20100110 HOT 10
- Bootlooping after Watchdog reset HOT 8
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