Hi Don,
I can boot from UART with CS0BW set to ON and OFF. In first case I can use NAND for data storage, in second case NAND can not be used, but in both cases UART boot is successful. All that with EZSDK 5.05.02.00. See all my steps in the below e2e post:
http://e2e.ti.com/support/dsp/davinci_digital_media_processors/f/716/p/284046/997063.aspx#997063
[quote user="Don Purvis"]TI-MIN#loadb 0x81000000[/quote]
Can you try with loady (instead of loadb), does it make any difference?
Best regards,
Pavel