Efinix Titanium - Page 59

Titanium Interfaces User Guide
gpio_rule_input_alt_conn (error)
Message Connection type <type> is not supported by <resource>
To fix If you want to use the alternate funciton of a GPIO block, you need to choose a resource that
supports it. For example, global control (GCTRL) is only supported on the P pin. You can filter
for resources by alternate function in the Resource Assigner.
Message <resource> only supports normal connection type
To fix You need to choose a different connection type or assign a different resource that supports
the connection type you want to use. You can filter for resources by alternate function in the
Resource Assigner.
gpio_rule_input_alt_conn (warning)
Message Connection type <type> is not supported by <resource>
To fix For a GPIO block in inout mode, you get a warning if you do not specify the input pin name.
Specify the input pin name to use the block as bidirectional or leave it empty to use it as
open-drain.
Message <resource> only supports normal connection type
To fix The software thinks you are creating an open-drain if you leave the input pin name empty, so
this choice is valid, but it lets you know that you made this selection in case you really want to
use it as bidirectional.
gpio_rule_ddio_resource (error)
Message Double Data I/O must be assigned to resource that supports DDIO
To fix To use the DDIO feature, you need to pick a resource that supports it. You can filter for
resources by DDIO in the Resource Assigner Features column.
gpio_rule_ddio_resource (warning)
Message Double Data I/O must be assigned to resource that supports DDIO
To fix You get this error if you use a resource that does not support DDIO but have not yet specified
an input pin name. Either turn off DDIO or choose a resource that supports it. You can filter for
resources by DDIO in the Resource Assigner Features column.
gpio_rule_ddio_input (error)
Message Input with DDIO requires register option to be set
To fix If you are using DDIO, you must set the the Register Option to register.
gpio_rule_ddio_input (warning)
Message Input with DDIO requires register option to be set
To fix For a GPIO block in inout mode, if the Double-Data I/O Option is other than none, you need
to choose register as the Register Option. You get this warning when you have set some
options for the input pin but have not yet specified a pin name.
gpio_rule_ddio_output (error)
Message Output with DDIO requires register option to be set
To fix To use DDIO you must set the Double-Data I/O Option set to something other than none.
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