DEFINE_MCU_DEBUG_ATTR
DEFINE_MCU_DEBUG_ATTR(firmware_version, REG_MCU_FIRMWARE_VERSION, "0x%02x");
DEFINE_MCU_DEBUG_ATTR(pcb_version, REG_PCB_VERSION, "0x%02x");
DEFINE_MCU_DEBUG_ATTR(board_type, REG_BOARD_TYPE, "0x%02x");
DEFINE_MCU_DEBUG_ATTR(mcu_type, REG_MCU_TYPE, "%d");