使用am3359做ethercat 从站，想要实现利用FoE升级bootloader和app, 查到的资料如下：
e2e.ti.com/.../rtos-am3357-ethercat-upgrade-using-foe
Hi Will Hsu, I believe you cannot upgrade bootloader using FoE only Firmware. For details on how to upgrade firmware via FoE please check "Online application upgrade from TwinCAT"
上面的链接： "Online application upgrade from TwinCAT" 已经无法打开，麻烦给一个可以参考的链接，谢谢！
