forked from epics_driver_modules/motorBase
Ron Sluiter
53 lines
1.6 KiB
Plaintext
53 lines
1.6 KiB
Plaintext
Delta Tau PMAC
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==============
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Notation: "$" denotes hexadecimal number.
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Configuring PMAC
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----------------
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- Set the "VMEbus Address Modifier" (I90):
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- $39 for A24 non privileged data access (default).
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- $3D for A24 supervisory data access.
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- $9 for A32 non privileged data access.
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- $D for A32 supervisory data access.
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- Enable both "supervisory" and "non-privileged" VMEbus data access by setting
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the "VMEbus Address Modifier Don't Care Bits" (I91) to $4 (default).
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- For A32 addressing only, set the "VME Base Address Bits A31-A24" (I92) to the
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two most significant hex nibbles; e.g. for $A123 0000 set I92 to $A1.
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The default value ($FF) is N/A.
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- Set the "VME Mailbox Address Bits A23-A16" (I93) so it does not conflict with
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the DPRAM (default value - $7F).
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- Set the "VME Mailbox Address Bits A15-A08" (I94) so it does not conflict with
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the DPRAM (default value - $A0).
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- Set the "VME DPRAM Base Address Bits A23-A20" (I97); for example,
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- for A32 addressing, at base address $A123 0000 set I97 to $23.
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- for A24 addressing, at base address $00D0 0000 set I97 to $D0.
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The default value is $0.
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- Set the "VME DPRAM Enable" (I98) to $E0 to enable DPRAM access; the default
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value is $60.
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- Set the "VME Address Width Control" (I99) to:
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- $90 for A24 addressing.
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- $80 for A32 addressing.
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The default value is $30.
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- Enable DPRAM ASCII communication; set I58 to 1.
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- Download "Suggested M-variable definitions". In particular, this device driver
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uses;
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- M0161->D:$088
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- M0162->D:$08B
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- M0261->D:$108
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- M0262->D:$10B
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... ...
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- M3261->D:$1008
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- M3262->D:$100B
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