Re: [flashrom] Development flashrom

[Carl-Daniel Hailfinger]

On 14.10.2016 21:24, David Hendricks wrote:
> What exactly are you trying to do? How do you plan to use the CC3200?
> How is the flash memory connected / accessed?
>
> TI has some information about flashing it
> here: http://processors.wiki.ti.com/index.php/CC31xx_%26_CC32xx_FTDI_Flashing
>
> If you'd like, you can try adding support for the FTDI chip in
> ft2232_spi.c.

There are various existing open source tools based on libftdi which
write the EEPROM which does the same thing as FT_PROG. Please note that
FT_PROG writes the configuation EEPROM of the FTDI chip, not the flash
chip storing the firmware of the CC3100/CC3200.
> If the FTDI D2XX is significantly different you can create a new file
> (ftdi_d2xx.c, for example), and use ft2232_spi.c as a template.

I think the FTDI D2XX library has a license incompatible with flashrom.

If you want to replace TI CCS UniFlash with flashrom, it would make
sense to check if any protocol documentation for the UART-based flashing
exists. In that case you won't need D2XX or libftdi.

Regards,
Carl-Daniel

Development flashrom

[Agustin Isasmendi]

Hi Carl, David

The launchpad CC3200 have FTDI 2232D for programming CC3200 MCU. I wanted
to use this FT2232 with flashrom.
I can finally use flashrom with launchpad cc3200.

But i have questions about ft2232_spi.c file (attached) in line 488
"buf[i++] = 0 & ~cs_bits; /* assertive */"
Why sets all pins to low state? I need keep one pin to high state.The
launchpad CC3200 requires keep Bit 7 to high state for work.

It work replacement line 488 for this buf[i++] = 0x80;
Any solution?

attach img with flashrom running. Sorry for quality

Reggards

2016-10-14 20:19 GMT-03:00 Carl-Daniel Hailfinger <
[e-mail]>:
> On 14.10.2016 21:24, David Hendricks wrote:
> > What exactly are you trying to do? How do you plan to use the CC3200?
> > How is the flash memory connected / accessed?
> >
> > TI has some information about flashing it
> > here: http://processors.wiki.ti.com/index.php/CC31xx_%26_CC32xx_
>
> FTDI_Flashing
> > If you'd like, you can try adding support for the FTDI chip in
> > ft2232_spi.c.
>
> There are various existing open source tools based on libftdi which
> write the EEPROM which does the same thing as FT_PROG. Please note that
> FT_PROG writes the configuation EEPROM of the FTDI chip, not the flash
> chip storing the firmware of the CC3100/CC3200.
> > If the FTDI D2XX is significantly different you can create a new file
> > (ftdi_d2xx.c, for example), and use ft2232_spi.c as a template.
>
> I think the FTDI D2XX library has a license incompatible with flashrom.
>
> If you want to replace TI CCS UniFlash with flashrom, it would make
> sense to check if any protocol documentation for the UART-based flashing
> exists. In that case you won't need D2XX or libftdi.
>
> Regards,
> Carl-Daniel

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