4q Fp Pf Data | Type

// Convert floating-point to Q4.12 q4_12_t float_to_q4_12(float x) return (q4_12_t)(x * (1 << 12));

Check your compiler’s fixed-point.h or stm32_dsp.h header file. You’ll likely find #define Q4_12 or similar. Have you encountered a different interpretation of "4q fp pf"? Let me know in the comments — datasheets can be wild. 4q fp pf data type

But in the world of and FPGA programming , this cryptic string actually tells you everything about how a number is stored—without using a single floating-point unit. // Convert floating-point to Q4