On 2021/12/31 11:01, Li, Zhijian/李 智坚 wrote: > I think you didn't follow the SPEC. > > SPEC: > ATOMIC WRITE BTH shall hold the Opcode = 0x1D (valid only for RC, RD > and XRC, reserved for unreliable transport services). Hi, Good catch, I will correct the value in next version. Best Regards, Xiao Yang