通过P800-ISP 在线编程器，对飞思卡尔胎压检测芯片FXTH8708 进行在线编程。可以 实现工程文件的保密性和工厂工人操作一致性。

TPMS，这是飞思卡尔胎压监测方案和官方固件驱动，原公司找代理商要的资料，官方网站下载不到，必须要大的代理商才能给，希望从事这方面的工程师能够参考

This document describes the embedded firmware found in all derivatives of the FXTH87xx11 and FXTH87xx12 devices. The intended audience for this document is firmware architects, developers, coders and/ or testers working with the FXTH87xx11 and FXTH87xx12 devices. This document is divided into three sections: This introduction, a section describing global variables and standard formats used throughout the functions, and a third section describing each function.

Freescale’s FXTH87xx consist of complex system-on-chip products that contain a pressure sensor, a Radio Frequency (RF) transmitter, a Low Frequency (LF) receiver, an 8-bit S08 microcontroller (MCU), and may contain one or two axis accelerometers, all in one package. As with most S08 solutions, users must program the MCU with their program, but Freescale already ships low-level drivers, as well as compensation routines, within each part. In order to exploit these routines, the developer must be familiar not only with the MCU architecture, but also with the in-flash firmware. The aim of this document is to fast-track the learning curve of the latter part for someone that is already cognizant of the former.

飞思卡尔的FXTH87 Xtrinsic系列胎压监测传感器的规格书，低频和高频结合的编程例子，高频测量例子