I am trying to make a USB powered device based on a BF525 costum board. This requires that I am able to boot in less then 100 ms.
I am booting from a SPI flash. I have modified the init code (\ldr\init_code\c\ADSP-BF527 EZ-KIT Lite) to fit our board. The problem is now that the reading of the init code from the SPI flash is slow (58.2 kHz) 230-240 ms. The application code is fast to read since the SPI_BAUD is set in the init code to 2 which gives a speed of 32 MHz on the SPI bus, so no problem with that.
Is there a way to increase the speed reading of the init code, other then set the OTP preboot registers?
I would like to avoid the OTP, since is could give some problems in production.
Regrads Peter Ilsoe