at91rm3400 ATMEL Corporation, at91rm3400 Datasheet - Page 76

• Manufacturer Part Number: at91rm3400
• Description: Atmel Advanced At91 Arm Microcontroller
• Manufacturer: ATMEL Corporation

Sine Service
Presentation
Sine Service Description
Table 23. Sine Service Description
76
Method and Array Available
// Typical Use:
pAT91->Sine(...);
// Default Method:
short AT91F_Sinus(int step)
// Typical Use:
short sinus;
sinus = pAT91->SineTab[...];
// Array Embedded:
const short AT91C_SINUS180_TAB[256]
AT91RM3400
This “service” differs from the preceding one in that it is structured differently: it is composed of
an array and a method directly accessible through the
Description
This function returns the amplitude coded on 16 bits, of a sine
waveform for a given step.
Input Parameters:
Step of the sine. Corresponds to the precision of the amplitude
calculation. Depends on the Sine Array used. Here, the array has
256 values (thus 256 steps) of amplitude for 180 degrees.
Output Parameters:
Amplitude of the sine waveform.
Sine Array with a resolution of 256 values for 180 degrees.
AT91S_RomBoot
structure.
1790A–ATARM–11/03