Blackfin Simplified

1
Blackfin Simplified

• As much as we can make heads or tails of it at
  least
• Pics taken from App Note EE-240

2
Flags are special commands to the processor
Address to start writing the DXE block too
DXE Count is how big the initial DXE program is,
including all headers and blocks
Count inside header is how big the DXE block is,
not counting the header
3
Configuration we will be using, BMODE 10 on the
Blackfin (set by a switch).
Arduino or some sort of SPI interface to computer
Tells Host to stop transmitting when high
Common SPI Line names _S_SEL _CS _SEL Chip
Select (active low) SPICLK SCLK Serial
Clock MOSI Master Output Slave Input SDI
Slave Device Input MISO Master Input Slave
Output SDO Slave Device Output
Done with hard reset line (not shown)
4
Size of DXE count (always 4 bytes)
Tells processor there is an incoming DXE
Count of DXE (including all blocks and headers)
Header for DXE block 1
Header for DXE block 2
Tells processor there is an incoming DXE
Count of DXE (including all blocks and headers)
Header for DXE block 1
.LDR File Structure