This git repo should be included as a submodule.
- Open the parameter map file you need to
- Make the change
- commit the change to the repository. This is important as the git hash is mapped into the register map
- go to /src and run parse_param.py ../../param_def/
The parameter definition files contain a map which contains key value pairs that are parsed and used to generate VHDL and EPICS. Only the label and type keys are required.
| Key | Description | Example Values |
|---|---|---|
| label | The label used for the parameter | |
| type | One of the types in param_def.json | "MAC" |
| default | The default value written into firmware | "x\"feedf00d\"" |
| min | Used to set the minimum allowable value of PV | 1000 |
| max | Used to set the maximum allowable value of PV | 1000 |
| pini | Process on init. Default is dependend on parameter type, normally TRUE | 0 |
| scan | PV scan rate. Default is dependend on parameter type. Use EPICS formatting | Passive |
| vec | creates multiple versions of the same parameter in this space |
{
"project name" : "Detector Group Readout Slave",
"space full name" : "User Configuration Register Space (Slave)",
"space label" : "usr_params_slv",
"addr bus width" : "32",
"address offset" : "0x40000000",
"rings" : "12",
"ring space" : "0x10000000",
"nodes" : "24",
"node space" : "0x00800000",
"parameter map" : [
{"label": "ro_test", "type": "RO", "default": "x\"feedf00d\"", "pini": "0","scan":"Passive", "desc": "Read only test register - should read 0xfeedfood"},
{"label": "rw_test", "type": "RW", "default": "x\"babacede\"", "pini": "0", "desc": "Read/write test register - initial value is 0xbabcede"},
{"label": "resetn", "type": "RW", "default": "x\"00000000\"", "pini": "0", "desc": "Active-low reset for slave test data generator."},
{"label": "idles", "type": "RW", "default": "x\"0000000a\"", "pini": "0", "desc": "Idle clock cycles between packets produed by slave test data generator."}
]
}
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