Hi Find af9015.c file and replace the following lines: line 402:--> #define GOLDEN_RATIO_PRIME_32 0x9e370001UL for: /*#define GOLDEN_RATIO_PRIME_32 0x9e370001UL*/ line 423: --> state->eeprom_sum *= GOLDEN_RATIO_PRIME_32; for: /*state->eeprom_sum *= GOLDEN_RATIO_PRIME_32;*/ and try again. Regards