Echelon Neuron C - Manual (Page 45)

Neuron C Reference Guide 25
#pragma disable_servpin_pullup
Disables the internal pullup resistor on the service pin. This pullup resistor
is normally enabled. The pragma takes effect during I/O initialization.
This directive has no effect when used for a Series 5000 chip.
This directive is not supported in model files.
#pragma disable_snvt_si
Disables generation of the self-identification (SI) data. The SI data is
generated by default, but can be disabled using this pragma to reclaim
program memory when the feature is not needed. See Standard Network
Variable Types (SNVTs) in Chapter 3, How Devices Communicate Using
Network Variables, of the Neuron C Programmer’s Guide .
The compiler does not issue error message NCC#15 if you specify this
directive multiple times in the application.
This directive is not supported in model files.
#pragma disable_warning number
Controls the compiler’s printing of specific warning and hint messages
Warning messages are less severe than errors, yet could indicate a problem
in a program, or a place where code could be improved. To disable all
warning messages, specify an asterisk (*) for the number .
See the enable_warning directive to enable disabled warnings.
The disable_warning directive supercedes the warnings_off directive.
#pragma eeprom_locked
This pragma provides a mechanism whereby an application can lock its
checksummed EEPROM. Checksummed EEPROM includes the application
and network images, but not application EEPROM variables. Setting the
flag improves reliability because attempts to write EEPROM as a result of
wild jumps fail. EEPROM variables are not protected. See the discussion of
the set_eeprom_lock( ) function in Chapter 3,
Functions , on page 39, for more
information.
There are drawbacks to using the EEPROM lock mechanism. A device with
this pragma (or one using the set_eeprom_lock( ) function) requires that the
device be taken offline before checksummed EEPROM can be modified. So, if
the device is configured by a network tool that does not take the device offline
prior to changes, the tool does not change the configuration.
This directive is not supported in model files.
#pragma enable_io_pullups
Enables the internal pullup resistors on pins IO4 through IO7 for Series 3100
devices. The pragma takes effect during I/O initialization. These pullup
resistors are normally disabled. Use of this pragma can eliminate external
hardware components when pullup resistors are required. The PL 3120-E4
Smart Transceiver and the PL 3150 Smart Transceiver both have an extra
I/O pin, IO11. On these models of Smart Transceiver, this directive also
enables a pullup resistor for the IO11 pin.