4.1.5 Parameter Set Bulk Dump
This section describes the bulk format for parameter set transfers.
How parameter sets are actually allocated depends on the
Unlike the data format for individual parameter changes, a memory image is sent in order to increase the speed of the parameter set bulk dump. Pre- and
You can transfer multiple parameter sets during a session. When a single parameter set is very large, it can be divided and transferred as multiple packets. In such a case, and address offset is included as part of the data.
Transferring multiple
One-Way Communication Flow
A session starts with a BDR request by the data receiver or a BDS data send by the data sender. The session ends after the data sender transfers the required amount of data for the number of parameter sets.
When the
Data is divided into packets of 256 bytes or less and transferred at fixed intervals (20 msec).
Data Receiver | Data Sender |
|
BDR | Send Request (Optional) | |
| <- BDS | Data Transfer |
Interval: 20 msec minimum |
| |
| <- BDS | Data Transfer |
Interval: 20 msec minimum |
| |
| <- BDS | Data Transfer |
Interval: 20 msec minimum |
| |
| : |
|
| : |
|
Hand Shake Protocol
A session starts with the data receiving sending an HDR request or an HDS data send from the data sender.
The data sender does not send the next packet until it receives an acknowledgement (ACK) from the data receiver. Be sure to reserve at least 100msec as the maximum wait time. If no response is received within the prescribed time, a time out error occurs and communication is terminated.
If the data receiver returns an HDE (error) due to a checksum error, illegal data format, or any other reason, the data sender resends the data. Resend the data at least one time.
The session ends after the data sender transfers the correct amount of data for the number of parameter sets, and is terminated when an ACK is returned.
Data Receiver | Data Sender |
|
HDR |
| Send Request(Optional) |
<- | HDS | Data Send |
HDA |
| Acknowledge |
<- | HDS | Data Send |
HDA |
| Acknowledge |
: |
|
|
: |
|
|
Resend is performed after an error due to checksum error or data format error.
Data Receiver Data Sender |
|
HDR | Send Request (Optional) |
<- HDS | Data Send |
HDA | Acknowledge |
<- HDS | Data Send |
HDE | Acknowledge |
<- HDS | Data Resend |
: |
|
: |
|
Send is terminated if there is no acknowledgement (ACK).
Data Receiver Data Sender |
|
HDR | Send Request (Optional) |
<- HDS | Data Send |
HDA | Acknowledge |
<- HDS | Data Send |
(Send Terminated) |
|
HDJ is sent whenever the session is terminated for any reason. HDJ can be sent from either the sender or receiver. Receipt of HDJ immediately terminates a bulk dump.
Data Receiver | Data Sender |
|
HDR | Send Request (Optional) | |
| <- HDS | Data Send |
HDA | Acknowledge | |
| <- HDS | Data Send |
| : |
|
HDJ | Data Receive Rejection | |
(Send Terminated) |
| |
Data Receiver | Data Sender |
|
HDR | Send Request (Optional) | |
HDA | Acknowledge | |
| <- HDS | Data Send |
HDA | Acknowledge | |
| <- HDS | Data Send |
| : |
|
| <- HDJ | Data Send Rejection |
Parameter Set HDJ/HDA/HDE
tt 0100aaaa aaaa = HDJ/HDA/HDE
No data in the case of Rejection, Acknowledge, or Error
Parameter Set BDS/HDS
tt | 0100aaaa | aaaa = BDS/HDS |
d0[0] | 0ooocccc | cccc = Parameter Set Category |
|
| ooo = option (Definition for each category) |
d0[1] | 0ttttttt | 0TTTTTTT0ttttttt = Type ID |
d0[2] | 0TTTTTTT |
|
d0[3] | 0mmmmmmm | 0MMMMMMM0mmmmmmm = Mdev ID |
d0[4] | 0MMMMMMM |
|
d0[5] | 0sssssss | 00SSSSSSSsssssss = Section Number |
d0[6] | 0SSSSSSS |
|
d0[7] | 0nnnnnnn | 00NNNNNNNnnnnnnn = PS Number |
d0[8] | 0NNNNNNN |
|
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