Lowest 8 bits (byte) of param, bits 7..0.

Function returns the lowest byte of param. Function does not interpret bit patterns of param – it merely returns 8 bits as found in register.

This is an “inline” routine; code is generated in the place of the call, so the call doesn’t count against the nested call limit.

None.

d = 0x12345678; 	
tmp = Lo(d);  // Equals 0x78

Lo(d) = 0xAA; // d equals 0x123456AA

Returns next to the lowest byte of param, bits 8..15.

Function returns next to the lowest byte of param. Function does not interpret bit patterns of param – it merely returns 8 bits as found in register.

This is an “inline” routine; code is generated in the place of the call, so the call doesn’t count against the nested call limit.

None.

d = 0x12345678; 	
tmp = Hi(d);  // Equals 0x56

Hi(d) = 0xAA; // d equals 0x1234AA78

Returns next to the highest byte of param, bits 16..23.

Function returns next to the highest byte of param. Function does not interpret bit patterns of param – it merely returns 8 bits as found in register.

This is an “inline” routine; code is generated in the place of the call, so the call doesn’t count against the nested call limit.

None.

d = 0x12345678; 	
tmp = Higher(d);  // Equals 0x34

Higher(d) = 0xAA; // d equals 0x12AA5678

Returns the highest byte of param, bits 24..31.

Function returns the highest byte of param. Function does not interpret bit patterns of param – it merely returns 8 bits as found in register.

This is an “inline” routine; code is generated in the place of the call, so the call doesn’t count against the nested call limit.

None.

d = 0x12345678; 	
tmp = Highest(d);  // Equals 0x12

Highest(d) = 0xAA; // d equals 0xAA345678

The function returns low word of number. The function does not interpret bit patterns of number – it merely returns 16 bits as found in register.

This is an “inline” routine; code is generated in the place of the call, so the call doesn’t count against the nested call limit.

• number: input number

Low word of number, bits 15..0.

Nothing.

d = 0x12345678; 	
tmp = LoWord(d);  // Equals 0x5678

LoWord(d) = 0xAAAA; // d equals 0x1234AAAA

None.

The function returns high word of number. The function does not interpret bit patterns of number – it merely returns 16 bits as found in register.

This is an “inline” routine; code is generated in the place of the call, so the call doesn’t count against the nested call limit.

• number: input number

High word of number, bits 31..16.

Nothing.

d = 0x12345678; 	
tmp = HiWord(d);  // Equals 0x1234

HiWord(d) = 0xAAAA; // d equals 0xAAAA5678

None.

Nothing.

Creates a software delay in duration of time_in_us microseconds (a constant). Range of applicable constants depends on the oscillator frequency.

This is an “inline” routine; code is generated in the place of the call, so the call doesn’t count against the nested call limit. This routine generates nested loops using registers R13, R12, R11 and R10. The number of used registers varies from 0 to 4, depending on requested time_in_us.

Nothing.

Delay_us(1000);  /* One millisecond pause */

Nothing.

Creates a software delay in duration of time_in_ms milliseconds (a constant). Range of applicable constants depends on the oscillator frequency.

This is an “inline” routine; code is generated in the place of the call, so the call doesn’t count against the nested call limit. This routine generates nested loops using registers R13, R12, R11 and R10. The number of used registers varies from 0 to 4, depending on requested time_in_ms.

Nothing.

Delay_ms(1000);  /* One second pause */

Nothing.

Creates a software delay in duration of time_in_ms milliseconds (a variable). Generated delay is not as precise as the delay created by Delay_ms.

Note that Vdelay_ms is library function rather than a built-in routine; it is presented in this topic for the sake of convenience.

Nothing.

pause = 1000;
// ...
Vdelay_ms(pause);  // ~ one second pause

Nothing.

Creates a software delay in duration of time_in_ms milliseconds (a variable), for a given oscillator frequency. Generated delay is not as precise as the delay created by Delay_ms.

Note that Vdelay_ms is library function rather than a built-in routine; it is presented in this topic for the sake of convenience.

Nothing.

pause = 1000;
fosc = 10000;

VDelay_Advanced_ms(pause, fosc);  // Generates approximately one second pause, for a oscillator frequency of 10 MHz

Nothing.

Creates a delay based on MCU clock. Delay lasts for 10 times the input parameter in MCU cycles.

Note that Delay_Cyc is library function rather than a built-in routine; it is presented in this topic for the sake of convenience. There are limitations for Cycles_div_by_10 value. Value Cycles_div_by_10 must be between 3 and 255.

Nothing.

Delay_Cyc(10);  /* Hundred MCU cycles pause */

Device clock in kHz, rounded to the nearest integer.

Function returns device clock in kHz, rounded to the nearest integer.

This is an “inline” routine; code is generated in the place of the call, so the call doesn’t count against the nested call limit.

Nothing.

clk = Clock_kHz();

Device clock in MHz, rounded to the nearest integer.

Function returns device clock in MHz, rounded to the nearest integer.

This is an “inline” routine; code is generated in the place of the call, so the call doesn’t count against the nested call limit.

Nothing.

clk = Clock_MHz();

Device clock in kHz, rounded to the nearest integer.

Function returns device clock in kHz, rounded to the nearest integer.

Note that Get_Fosc_kHz is library function rather than a built-in routine; it is presented in this topic for the sake of convenience.

Nothing.

clk = Get_Fosc_kHz();

Swapped nibbles of the input byte.

Function swaps nibbles of the input parameter.

This is an “inline” routine; code is generated in the place of the call, so the call doesn’t count against the nested call limit.

Nothing.

char input, swapped_input;

input = 0xAF;
swapped_input = swap(input); // routine will return 0xFA i.e. swapped nibbles of the input parameter