最新协议栈BLE-STACK 2.1.0是要收费吗？

不需要修改的啊。在ti的官网上下载，需要填写一下一张表格。填写后，会发邮件到你邮箱里面的。邮件里面有直接的下载地址

TI Request

We are sorry but your transaction has been denied. If you feel you have been denied incorrectly, please contact Texas Instruments at sw_export_form@list.ti.com . Include your First and Last Name, Company Name, Company URL, and email address, along with the exact filename and description of the file you wish to access.

Thank you,

Texas Instruments

收到这些信息是要等段时间，还是直接拒绝了。

按要求回复sw_export_form@list.ti.com也没有反馈。

应该是拒绝了。您使用的是个人邮箱还是公司邮箱？建议使用公司邮箱申请。