knightlore / avr-etherboot Goto Github PK

sometimes there are single bytes in the FLASH memory, which read 0xFF after
programming.

a) There might be a bug in the FLASH addressing / programming algorithm
b) It might be necessary to verify memory after programming

DHCP server may send ICMP Echo request to check if an IP address is in use.
We need to answer that request, otherwise the server may give our address
to another host.

Driver code in enc28j60.c does not contain necessary changes for Rev 4 and
5 chips - especially the ESTAT.CLKRDY anomality - as stated in the
microchip errata (see
http://ww1.microchip.com/downloads/en/DeviceDoc/80264d.pdf).

What steps will reproduce the problem?
1. configure device001/2 with ATmega128; 16MHz; Large

The following output will be displayed


Calculate code size: device_001.sizeelf
avr-gcc -mmcu=atmega128 -I. -gdwarf-2 -DF_CPU=16000000UL -
DBOOTLOADER_FLAVOR=3 -
DBLSECSTRT=0x3ff -Os -funsigned-char -funsigned-bitfields -fpack-struct -
fshort-
enums -Wall -Wstrict-prototypes -mcall-prologues -Wa,-adhlns=etherflash.o -
I. -I
.. -std=gnu99 -Wundef -MMD -MP -MF .dep/device_001.sizeelf.d etherflash.o 
checks
um.o ethernet.o arp.o enc28j60.o spi.o udp.o dhcpc.o eemem.o --output 
device_001
.sizeelf -Wl,--defsym=app_start=0 -Wl,-Map=device_001.map,--cref     -lm -
Wl,--d
efsym=app_start=0x1FC00 -Wl,--section-start=.text=0x1FC00 -
T ../make.files/eth-a
vr51.x -Wl,--section-start=.bootloader=0x0000
c:/winavr-
20090313/bin/../lib/gcc/avr/4.3.2/../../../../avr/bin/ld.exe:../make.f
iles/eth-avr51.x:8: syntax error




After changing 

  data      (rw!x) : ORIGIN = , LENGTH = 0xffa0

to

  data      (rw!x) : ORIGIN = 0x800060, LENGTH = 0xffa0

like in eth-avr51 or the standard linker script I get the following output.


Calculate code size: device_002.sizeelf
avr-gcc -mmcu=atmega128 -I. -gdwarf-2 -DF_CPU=16000000UL -
DBOOTLOADER_FLAVOR=3 -
DBLSECSTRT=0x3ff -Os -funsigned-char -funsigned-bitfields -fpack-struct -
fshort-
enums -Wall -Wstrict-prototypes -mcall-prologues -Wa,-adhlns=etherflash.o -
I. -I
.. -std=gnu99 -Wundef -MMD -MP -MF .dep/device_002.sizeelf.d etherflash.o 
checks
um.o ethernet.o arp.o enc28j60.o spi.o udp.o dhcpc.o eemem.o --output 
device_002
.sizeelf -Wl,--defsym=app_start=0 -Wl,-Map=device_002.map,--cref     -lm -
Wl,--d
efsym=app_start=0x1FC00 -Wl,--section-start=.text=0x1FC00 -
T ../make.files/eth-a
vr51.x -Wl,--section-start=.bootloader=0x0000
c:/winavr-20090313/bin/../lib/gcc/avr/4.3.2/../../../../avr/bin/ld.exe: 
address
0x20020 of device_002.sizeelf section .text is not within region text
c:/winavr-20090313/bin/../lib/gcc/avr/4.3.2/../../../../avr/bin/ld.exe: 
address
0x20020 of device_002.sizeelf section .text is not within region text
make: *** [device_002.sizeelf] Error 1





What version of the product are you using? On what operating system?
-latest svn

This option is used to identify a TFTP server when the 'sname' field in the
DHCP header has been used for DHCP options.

Jump to bootloader from application is not working correctly.
TFTP Read request is sent, but no input network packet processing took place.