Bootloader c5535: status register write disable

Can you try the programmer in the CSL?

http://www.ti.com/tool/sprc133

Hope this helps,
Mark

Hi Mark,

thanks for the reply, but I don't understand how I apply the CSL functions in my bootloader procedure.

I have used these instructions

http://processors.wiki.ti.com/index.php/C5535_Boot-Image_Programmer
The write register of my flash is disabled.

The same procedure is successful on Spectrum C5535 demo board because the demo board has a flash with write register always enabled.
I'd need to source code of programmer_c5535_eZdsp.out to add SPI instruction to enable my register.

Is it possible to have this code?

I hope I was clear

Thanks and good day.

I was thinking you could use the programmer that is in the CSL examples to burn your SPI flash.

See source code and project under c55_csl_3.04\c55_csl_3.04\c55xx_csl\ccs_v5.0_examples\programmer

See also c55_csl_3.04\c55_csl_3.04\c55xx_csl\ccs_v5.0_examples\programmer\ReadMe.txt

Hope this helps,
Mark

hi Mark,

I have a new strange question, sometimes my firmware does not work and this behaviour seems to depend from the dimension of my bootimg.bin file, for example adding or removing some code line, as printf(), stopping or not my application.

Is it possible or I have to search my problem in other causes.

To be thorough I use c5535 to: read sensors i2c, record sound on sd card and apply a fft on the wave file.

thanks bye.

I would not use printf in a boot image.

Avoid placing code into SARAM31. Check alignment of buffers used by DMA.

Maybe there is some clue in the .map file?

Hope this helps,
Mark

Hi Mark,

I use printf over UART, is it a problem?

If I add my .map file can you see anything of incorrect?

1667.CSL_USB_IsoFullSpeedExample_Out.txt

Thanks

Enrico