CCS C Compiler Manual PCB / PCM / PCH

READ_EXTERNAL_MEMORY (address, dataptr, count );
Parameters:
Returns:
Function:
Availability:
Requires:
Examples:
Example Files:
Also See:
address is 16 bits on PCM parts and 32 bits on PCH parts . The least
significant bit should always be 0 in PCM.
dataptr is a pointer to one or more bytes.
count is a 8 bit integer on PIC16 and 16-bit for PIC18
undefined
Reads count bytes from program memory at address to RAM at dataptr.
B oth of these functions operate exactly the same.
Only devices that allow reads from program memory.
Nothing
char buffer[64];
read_external_memory(0x40000, buffer, 64);
None
write program memory( ), External memory overview , Program Eeprom
Overview
read_high_speed_adc( )
Syntax:
read_high_speed_adc(pair,mode,result);
read or
read_high_speed_adc(pair,result);
read
read_high_speed_adc(pair);
read_high_speed_adc(mode,result);
or
read_high_speed_adc(result);
read_high_speed_adc();
// Individual start and
// read only
// Individual start and
// Individual start only
// Global start and read
// read only
// Global start and read
// Global start only
Parameters:
pair – Optional parameter that determines which ADC pair number to
start and/or read. Valid values are 0 to total number of ADC pairs. 0
starts and/or reads ADC pair AN0 and AN1, 1 starts and/or reads ADC
pair AN2 and AN3, etc. If omitted then a global start and/or read will be
performed.
mode – Optional parameter, if used the values may be:
· ADC_START_AND_READ (starts conversion and reads
result)
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