I have a problème with an ADSP21369 in SPI slave boot load. The transfer of the SPI boot Kernel (384words) is OK only when the delay between 2 words (32bits) is more than 50ms. The host is a COLDFIRE MCF5328 used with 32bits emulated master SPI.
The configuration of my board is 1 ADSP21369, 1 FLASH SPAS29GL128P10TFI010, 1 SDRAM H57V1262GTR. The crystal frequency is 12.288MHz, boot config is SPI SLAVE and clock config is16 * 12.288MHz.
When the SPI loader runs, the host sends data every 150us and the load is always OK.
Diagram below shows timings after a start of the SPI slave.
I would like to know if there is anything wrong in my design and why the delay between 2 words is so long.
Thanks in advance