It seems IBL is calling FPGA read function, because i found that "0x8400" appears on SPI data line.
At this moment, SPI_CS0 keeps HIGH, that means SPI_CS1 may goes to LOW (not proved).
Upon EVM6657LE technical manual, 0x84 (1_000 0100) means READ command, ADDR=4 (BM GPI).
I think this operation is requesting "Boot strap Pin Status" to FPGA, instead of reading DEVSTAT register on DSP.
If it is true, i have to add EVM's FPGA functions to my FPGA.
Is there anybody who make it sure???
Thanks~
Gilbert
