cc2538 bootloader

cc2538  bootloader 支持usb调用吗？

The boot loader does not support UART over USB. If for some reason you cant use the smartrf06 board and need to use the boot loader through USB you will need to write your own custom Boot Loader firmware. Another option that you have is to buy a USB to UART converter and wire it to the UART pins in the CC2538.

支持两线UART和四线SPI

need to use the boot loader through USB you will need to write your own custom Boot Loader firmware,我的意思也是写一个自己的bootloader，那么可以支持USB协议吗？有参考的bootloader的代码吗？

很抱歉，目前没有相关的参考代码

参考我们用Visual Studio工具在Windows上做的Demo，文档内有下载链接

http://www.ti.com/apps/docs/litabsmultiplefilelist.tsp?literatureNumber=swra466a&docCategoryId=1&appId=1080&keyMatch=SWRA466A&tisearch=Search-EN-Everything

你好：

     请教一下，在D:\Texas Instruments\Z-Stack Mesh 1.0.0\Projects\zstack\Utilities\BootLoad\CC2538目录下有两个文件夹，分别是CC2538和CC2538ZNP，有何区别呢？是否里面就是bootloader的源码？

供参考https://e2e.ti.com/support/wireless_connectivity/zigbee_6lowpan_802-15-4_mac/int_zigbee_6lowpan_802-15-4_mac/f/961/p/441899/1586008#1586008

你好，提示没有权限访问和下载。