Spin Semiconductor

it could work normally work with AVR and PIC, but not sured about STM32.
I heard, STM have limitations for hardware i2c sequences, about 1024 bits, or so on.

one more test LOG 0.666 , 0 LOG 0.666 , 0.5 LOG 0.666 , 1 LOG 0.666 , 2 LOG 0.666 , 4 LOG 0.666 , 8 LOG 0.666 , 15 dump: 0x2A,0x9F,0x00,0x0B, 0x2A,0x9F,0x40,0x0B, 0x2A,0x9F,0x80,0x0B, 0x2A,0x9F,0x00,0x0B, 0x2A,0x9F,0x00,0x0B, 0x2A,0x9F,0x00,0x0B, 0x2A,0x9F,0x80,0x0B, bit code of argument D is D=0000...

I think. spin asm log function compiling wrong LOG C * LOG(|ACC|) + D , there D is 4.6 real format Example program: LOG 0.5 , 0 LOG 0.5 , 0.5 LOG 0.5 , -0.5 LOG 0.5 , 1.5 LOG 0.5 , -1.5 LOG 0.5 , 2.5 LOG 0.5 , -2.5 LOG 0.5 , 4.5 LOG 0.5 , -4.5 LOG 0.5 , 8.5 LOG 0.5 , -8.5 LOG 0.5 , 15.5 LOG 0.5 , -1...

http://s.shift-line.com/decompiler/

simple decompiler, seems, work fine.

pretty dummy method is "copy myfile.hex>COM8"