we are developing a custom board based on the EZKit demo board.
In our board the 21489 should boot from an host micro (NXP1778 Cortex M3) that stores the firmware file.
The firmware is the ss_app_sh489.ldr from the C:\Analog Devices\CrossCore Embedded Studio 2.4.0\SHARC\ldr\ path.
We reset the DSP and then we send the content of the file via the SPI bus.
At the end of the transfer the DSP is not booting, cause it doesn't drive the LEDs as expected.
If we transfer the ldr file by SigmaStudio, via USB-SPI inteface, to the EzKit board the transfer is good and the DSP drives the LED as expected.