Difference between revisions of "Async kb"
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== Starting Transfer == | == Starting Transfer == | ||
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| + | .data[0] = 0xfd | ||
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| + | no parameters | ||
Revision as of 10:34, 6 March 2007
Terms:
connection: data transfer session, highest in hierarchy
block: data transfer unit, consists of several frames
frame: lowest data transfer unit. basically -- one network message
Message type ==
- 0x80 = data
- 0x90 = command
commands:
Request Session
.data[0] = 0xca -- request session
parameters:
.data[1] = priority (always 1)
.data[2] , .data[3] -- message packet max size (16 bit, big endian)
.data[4] == 0x01 (revision)
Session Granted
.data[0] = 0xf2 -- session granted
parameters:
.data[1] = number of frames per block
.data[2] = revision (always 0x01)
.data[3] = priority acknowledge (should reply with the same priority requested)
.data[4] .data[5] = bytes per frame (maximum allowed bytes per frame, 16bit, bigendian)
Starting Transfer
.data[0] = 0xfd
no parameters
