Wireless MCUのトピックvAppApiMcpsRequest() transmit big Data

vAppApiMcpsRequest() transmit big Data

小鹏陈 — Wed, 16 Jan 2019 02:01:41 GMT

Hi.

Because project development，I used vAppApiMcpsRequest() to transmit more 127 bytes of data, I try change define MAC_MAX_PHY_PKT_SIZE to 256 or 512,But still can't transmit more bytes .

What should I do to transmit more?Thank.

Re: vAppApiMcpsRequest() transmit big Data

mario_castaneda — Fri, 18 Jan 2019 19:14:35 GMT

Hi Xiaopeng,

The maximum size of the IEEE 802.15.4 IS 127 bytes, includes the header, CRC and payload.

Also, the payload depends on the security that you have.

Please look at the IEEE 802.15.4 Stack User Guide

B.3.2 Frame Size

Regards,

Mario