8e44177a66
DFF exists at bit 11 for f1, f2, f4 and l1, but the f0 and f3 have that bit as CRC len and use CR2 for data size bits instead. The merging of the F3 and F0 and attempts to put common data in common places broke the l1 code. F3 and F0 SPI headers are still almost completely identical.