How to change the SPI master boot clock rate?

Question

Hi, 
 21565 in my PCB is SPI boot from ext SPI flash. Sometimes it can boot and run program, sometimes it boot failed. 
 I can't find anything error in hardware. So I want to try to set the SPI clock rate slower, how can I set it?

ADIApproved · Accepted Answer

Hi,

Yes, You can change the SPI clock rate for the SPI Controller boot in your initialization code.

Initcode available in the below CCES installation path:
<installation path>CrossCore Embedded Studio 2.11.0\SHARC\ldr\init_code\2156x_Init

Please make a copy of initcode and modify as per your requirement.

Regards,
Anand Selvaraj.

Electronic Design Services - PartnerZone

How to change the SPI master boot clock rate?

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