Re: [flashrom] Arduino LPC flasher?

[Benjamin Henrion]

On Sun, Mar 27, 2011 at 2:22 PM, Benjamin Henrion  wrote:
> On Sun, Mar 27, 2011 at 2:10 PM, Stefan Tauner
>  wrote:
> > On Sun, 27 Mar 2011 13:25:05 +0200
> > Benjamin Henrion  wrote:
> > > Hi,
> > >
> > > I am trying to port this code to an Arduino Duemilanove (atmega328p):
> > >
> > > http://mikestirling.co.uk/2010/08/programming-an-lpc-flash-with-an-avr-and-f...
> > >
> > > When I change the chip to atmega168, I have the following error:
> > >
> > > avr-gcc -c -mmcu=atmega168 -I. -g -Os -funsigned-char
> > > -funsigned-bitfields -fpack-struct -fshort-enums -Wall
> > > -Wstrict-prototypes -Wa,-adhlns=uart.lst  -std=gnu99 -DF_CPU=7372800
> > > -Wp,-M,-MP,-MT,uart.o,-MF,.dep/uart.o.d uart.c -o uart.o
> > > uart.c: In function ‘__vector_18’:
> > > uart.c:65: error: ‘_UDR’ undeclared (first use in this function)
> > > uart.c:65: error: (Each undeclared identifier is reported only once
> > > uart.c:65: error: for each function it appears in.)
> > > uart.c: In function ‘__vector_19’:
> > > uart.c:83: error: ‘_UDR’ undeclared (first use in this function)
> > > uart.c: In function ‘uart_init’:
> > > uart.c:281: error: ‘_UBRR’ undeclared (first use in this function)
> > > make: *** [uart.o] Error 1
> > >
> > > Any idea what to change?
> > >
> > > Having a simple Arduino being able to flash BIOS chips would be
> > > awesome...
> >
> > the register names for the uart are probably different. e.g. for my
> > atmega32u2 i would have to use UDR1 and UBRR1[H|L].
> > just look it up in the datasheet or /usr/lib/avr/include/avr/.
> > HTH
>
> I have replaced all the _UDR references directly by UDR0, the same for
> _UBRR, and it compiles fine now.
>
> Now the Arduino Duemilanove can work in 3.3V if I am not mistaken, I
> tried in 5V, it gives me the following error:
>
> #  flashrom -p serprog:/dev/ttyUSB0:115200
> flashrom v0.9.2-r1028 on Linux 2.6.35-27-generic (x86_64), built with
> libpci 3.0.0, GCC 4.4.4, little endian
> flashrom is free software, get the source code at http://www.flashrom.org
>
> Calibrating delay loop... OK.
> Error: cannot synchronize protocol
> check communications and reset device?

It founds now the arduino, but not the LPC chip:

========================================================
flashrom -p serprog:/dev/ttyUSB0:115200
flashrom v0.9.2-r1028 on Linux 2.6.35-27-generic (x86_64), built with
libpci 3.0.0, GCC 4.4.4, little endian
flashrom is free software, get the source code at http://www.flashrom.org

Calibrating delay loop... OK.
serprog:Programmer name "ATMega88 LPC   "
No EEPROM/flash device found.
Note: flashrom can never write if the flash chip isn't found automatically.
========================================================

I am probably wrong in my pinout matching:

http://www.zoobab.com/arduino-as-a-bios-lpc-flasher

If someone knows more about LPC...

Best,