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Hello,
"Frame Length” (PHR), is 8-bits long, however 1 of these bits is
reserved. Therefore, the physical layer will be able to receive 127
bytes at maximum [IEE06, Sec.6.4.1]. Besides, this field contains all
header values (14 bytes for I-Frames). Thus, I believe that the maximum
payload at the MAC layer (TOSH_DATA_LENGTH) should be 113 bytes. However
I haven't checked this empirically.
[IEE06, Sec.6.4.1] IEEE 802.15.4-2006 -- Specific requirements Part
15.4: Wireless Medium Access Control (MAC) and Physical Layer (PHY)
Specifications for Low Rate Wireless Personal Area Networks (LR-WPANs)
http://standards.ieee.org/getieee802/download/802.15.4-2006.pdf
Vikram vik76 escribió:
Hello,
I would like to know what is the maximum payload size that we can set
for micaz motes using TOSH_DATA_LENGTH.
Also, what are the consequences of setting it to a high value.
I understand that by default it is set to 28 bytes.
Thanks
Vikram
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Ruben Rios
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