CCS C Compiler Manual PCB / PCM / PCH

Functional Overview
Configuration Memory
On all PIC18 Family of chips, the configuration memory is readable and writable. This
functionality is not available on the PIC16 Family of devices..
Relevant Functions:
write_configuration_memory
(ramaddress, count)
or
write_configuration_memory
(offset,ramaddress, count)
read_configuration_memory
(ramaddress,count)
Writes count bytes, no erase needed
Writes count bytes, no erase needed starting at byte
address offset
Read count bytes of configuration memory
Relevant Preprocessor:
None
Relevant Include Files:
None, all functions built-in
Relevant getenv() parameters:
None
Example Code:
For PIC18f452
int16 data=0xc32;
...
write_configuration_memory(data,2); //writes 2 bytes to the configuration memory
DAC
These options let the user configure and use the digital to analog converter module. They are
only available on devices with the DAC hardware. The options for the functions and directives
vary depending on the chip and are listed in the device header file.
Relevant Functions:
setup_dac(divisor)
Sets up the DAC e.g. Reference voltages
dac_write(value)
Writes the 8-bit value to the DAC module
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