I am a newbie to the TI C55x DSP and I am trying to use the FlashBurn Porting
kit to burn an AT45DB642D Atmel flash chip. I am using the DSK5510 example to
start with that uses a different flash chip and I am having problems getting
things to work.
My flash chip is connected to the DSP through the McBSP so I have set the
bootloader for a serial SPI EEPROM boot from McBSP0.
I have modified the FBTCDSK5510.pjt by changing the EraseFlash and FlashWrite
functions and the TargetConfig.h file to refelct the commands for the AT45
chip.
I have a logic analyzer attached to the MISO and MOSI and chip select lines and
I can see that the chip select is lowering as expected but no other data is
being transmitted when I try to erase or program the flash.
I am wondering if the issue is the fact that according to the AT45 flash spec
the chip select line needs to go low after sending a command which does not
happen.
Also do I need to include the setup for the McBSP in the FlashBurn code?
I didn't think I needed to but again I am a newbie to this stuff.
Anyone else have a similar flash chip that they have used FlashBurn with?
Any help would be appreciated.
Thanks
Monika
FlashBurn for 5510 problems
Started by ●October 26, 2007
Reply by ●October 26, 20072007-10-26
There is a lot of work to do to port 5510 flashburn, with works with
parallel flash, to SPI flash such as AT45. Yes, as you suspected, you
have to configure McBsp as SPI in clock stop mode. Then at least you
will see commands from McBsp on the scope.
Wei
--- In c..., mtrend123@... wrote:
>
> I am a newbie to the TI C55x DSP and I am trying to use the
FlashBurn Porting kit to burn an AT45DB642D Atmel flash chip. I am
using the DSK5510 example to start with that uses a different flash
chip and I am having problems getting things to work.
> My flash chip is connected to the DSP through the McBSP so I have
set the bootloader for a serial SPI EEPROM boot from McBSP0.
> I have modified the FBTCDSK5510.pjt by changing the EraseFlash and
FlashWrite functions and the TargetConfig.h file to refelct the
commands for the AT45 chip.
> I have a logic analyzer attached to the MISO and MOSI and chip
select lines and I can see that the chip select is lowering as
expected but no other data is being transmitted when I try to erase
or program the flash.
> I am wondering if the issue is the fact that according to the AT45
flash spec the chip select line needs to go low after sending a
command which does not happen.
> Also do I need to include the setup for the McBSP in the FlashBurn
code?
> I didn't think I needed to but again I am a newbie to this stuff.
>
> Anyone else have a similar flash chip that they have used FlashBurn
with?
>
> Any help would be appreciated.
>
> Thanks
> Monika
>
parallel flash, to SPI flash such as AT45. Yes, as you suspected, you
have to configure McBsp as SPI in clock stop mode. Then at least you
will see commands from McBsp on the scope.
Wei
--- In c..., mtrend123@... wrote:
>
> I am a newbie to the TI C55x DSP and I am trying to use the
FlashBurn Porting kit to burn an AT45DB642D Atmel flash chip. I am
using the DSK5510 example to start with that uses a different flash
chip and I am having problems getting things to work.
> My flash chip is connected to the DSP through the McBSP so I have
set the bootloader for a serial SPI EEPROM boot from McBSP0.
> I have modified the FBTCDSK5510.pjt by changing the EraseFlash and
FlashWrite functions and the TargetConfig.h file to refelct the
commands for the AT45 chip.
> I have a logic analyzer attached to the MISO and MOSI and chip
select lines and I can see that the chip select is lowering as
expected but no other data is being transmitted when I try to erase
or program the flash.
> I am wondering if the issue is the fact that according to the AT45
flash spec the chip select line needs to go low after sending a
command which does not happen.
> Also do I need to include the setup for the McBSP in the FlashBurn
code?
> I didn't think I needed to but again I am a newbie to this stuff.
>
> Anyone else have a similar flash chip that they have used FlashBurn
with?
>
> Any help would be appreciated.
>
> Thanks
> Monika
>
Reply by ●October 27, 20072007-10-27
Monika-
> I am a newbie to the TI C55x DSP and I am trying to use the FlashBurn Porting kit to burn an AT45DB642D Atmel flash
> chip. I am using the DSK5510 example to start with that uses a different flash chip and I am having problems getting
> things to work.
> My flash chip is connected to the DSP through the McBSP so I have set the bootloader for a serial SPI EEPROM boot from
> McBSP0.
> I have modified the FBTCDSK5510.pjt by changing the EraseFlash and FlashWrite functions and the TargetConfig.h file
> to refelct the commands for the AT45 chip.
> I have a logic analyzer attached to the MISO and MOSI and chip select lines and I can see that the chip select is
> lowering as expected but no other data is being transmitted when I try to erase or program the flash.
> I am wondering if the issue is the fact that according to the AT45 flash spec the chip select line needs to go low
> after sending a command which does not happen.
> Also do I need to include the setup for the McBSP in the FlashBurn code?
> I didn't think I needed to but again I am a newbie to this stuff.
>
> Anyone else have a similar flash chip that they have used FlashBurn with?
Flashburn is not the easiest utility to use or get working with hardware other than the TI-provided examples. My
suggestion would be to first write some small, simple code that does read/write to the Atmel Flash chip -- essentially
a device driver. Once you're sure that's working, then go for the Flashburn port.
Otherwise you will be trying to debug two major issues at the same time, with unnecessary confusion.
-Jeff
> I am a newbie to the TI C55x DSP and I am trying to use the FlashBurn Porting kit to burn an AT45DB642D Atmel flash
> chip. I am using the DSK5510 example to start with that uses a different flash chip and I am having problems getting
> things to work.
> My flash chip is connected to the DSP through the McBSP so I have set the bootloader for a serial SPI EEPROM boot from
> McBSP0.
> I have modified the FBTCDSK5510.pjt by changing the EraseFlash and FlashWrite functions and the TargetConfig.h file
> to refelct the commands for the AT45 chip.
> I have a logic analyzer attached to the MISO and MOSI and chip select lines and I can see that the chip select is
> lowering as expected but no other data is being transmitted when I try to erase or program the flash.
> I am wondering if the issue is the fact that according to the AT45 flash spec the chip select line needs to go low
> after sending a command which does not happen.
> Also do I need to include the setup for the McBSP in the FlashBurn code?
> I didn't think I needed to but again I am a newbie to this stuff.
>
> Anyone else have a similar flash chip that they have used FlashBurn with?
Flashburn is not the easiest utility to use or get working with hardware other than the TI-provided examples. My
suggestion would be to first write some small, simple code that does read/write to the Atmel Flash chip -- essentially
a device driver. Once you're sure that's working, then go for the Flashburn port.
Otherwise you will be trying to debug two major issues at the same time, with unnecessary confusion.
-Jeff
