There are two external pins on the microcontroller that are latched during reset and used to determine
whether the microcontroller will boot from flash memory or attempt a serial download via FlexCAN or
LINFlexD (RS232):
• FAB (Force Alternate Boot mode) on pin PA[9]
• ABS (Alternate Boot Select) on pin PA[8]
- 本地模式:启动flash中的系统;
- 网络模式:通过CAN/LIN获取要执行的系统;