//! The main function
int main(int argc, char *argv[])
{
dsp32_t number, result;
int cycle_count;
char sin_result[50], cos_result[50], asin_result[50], acos_result[50],
rand_result[50], sqrt_result[50], abs_result[50], ln_result[50],
log2_result[50], log10_result[50], exp_result[50], pow_result[50];
/**
* \note the call to sysclk_init() will disable all non-vital
* peripheral clocks, except for the peripheral clocks explicitly
* enabled in conf_clock.h.
*/
sysclk_init();
// Initialize the DSP debug USART module when running in external board
#if BOARD != AVR_SIMULATOR_UC3
dsp_debug_initialization(FOSC0);
#endif
number = DSP32_Q(NUMBER_TO_COMPUTE);
/*
* Place a breakpoint on sprintf and check the ASCII output in
* %operator%_result in Watch Window or Memory Window.
* Note: Edit the variable name in Watch Window and append
* "&" at the start and ",s" at the end for displaying string.
* Read Watch Window Format Specifiers for more info.
*/
// 32-bit fixed point cosine
cycle_count = Get_sys_count();
result = dsp32_op_cos(number);
cycle_count = Get_sys_count() - cycle_count;
dsp32_debug_sprintf(cos_result, "cos(%f) %f (%i cycles)\n", number,
result, cycle_count);
// 32-bit fixed point sine
cycle_count = Get_sys_count();
result = dsp32_op_sin(number);
cycle_count = Get_sys_count() - cycle_count;
dsp32_debug_sprintf(sin_result, "sin(%f) %f (%i cycles)\n", number,
result, cycle_count);
// 32-bit fixed point arc cosine
cycle_count = Get_sys_count();
result = dsp32_op_acos(number);
cycle_count = Get_sys_count() - cycle_count;
dsp32_debug_sprintf(acos_result, "acos(%f) %f (%i cycles)\n", number,
result, cycle_count);
// 32-bit fixed point arc sine
cycle_count = Get_sys_count();
result = dsp32_op_asin(number);
cycle_count = Get_sys_count() - cycle_count;
dsp32_debug_sprintf(asin_result, "asin(%f) %f (%i cycles)\n", number,
result, cycle_count);
// 32-bit fixed point random
dsp_op_srand(number);
cycle_count = Get_sys_count();
result = dsp32_op_rand();
cycle_count = Get_sys_count() - cycle_count;
dsp32_debug_sprintf(rand_result, "rand() %f (%i cycles)\n", result,
cycle_count);
// 32-bit fixed point square root
cycle_count = Get_sys_count();
result = dsp32_op_sqrt(number);
cycle_count = Get_sys_count() - cycle_count;
dsp32_debug_sprintf(sqrt_result, "sqrt(%f) %f (%i cycles)\n", number,
result, cycle_count);
// 32-bit fixed point absolute
cycle_count = Get_sys_count();
result = dsp32_op_abs(number);
cycle_count = Get_sys_count() - cycle_count;
dsp32_debug_sprintf(abs_result, "abs(%f) %f (%i cycles)\n", number,
result, cycle_count);
// 32-bit fixed point natural logarithm
cycle_count = Get_sys_count();
result = dsp32_op_ln(number);
cycle_count = Get_sys_count() - cycle_count;
dsp32_debug_sprintf(ln_result, "ln(%f) %f (%i cycles)\n", number,
result, cycle_count);
// 32-bit fixed point binary logarithm
cycle_count = Get_sys_count();
result = dsp32_op_log2(number);
cycle_count = Get_sys_count() - cycle_count;
dsp32_debug_sprintf(log2_result, "log2(%f) %f (%i cycles)\n", number,
result, cycle_count);
// 32-bit fixed point common logarithm
cycle_count = Get_sys_count();
result = dsp32_op_log10(number);
cycle_count = Get_sys_count() - cycle_count;
dsp32_debug_sprintf(log10_result, "log10(%f) %f (%i cycles)\n", number,
result, cycle_count);
// 32-bit fixed point exponential
cycle_count = Get_sys_count();
result = dsp32_op_exp(number);
cycle_count = Get_sys_count() - cycle_count;
dsp32_debug_sprintf(exp_result, "exp(%f) %f (%i cycles)\n", number,
result, cycle_count);
// 32-bit fixed point power
cycle_count = Get_sys_count();
result = dsp32_op_pow(DSP32_Q(0.), number);
cycle_count = Get_sys_count() - cycle_count;
dsp32_debug_sprintf(pow_result, "pow(0.5, %f) %f (%i cycles)\n", number,
result, cycle_count);
while (1) {
// Intentionally left blank.
}
}
//! The main function
int main(int argc, char *argv[])
{
dsp32_t number, result;
int cycle_count;
// Switch to external Oscillator 0.
pm_switch_to_osc0(&AVR32_PM, FOSC0, OSC0_STARTUP);
// Initialize the DSP debug module
dsp_debug_initialization(FOSC0);
dsp32_debug_printf("32-bit fixed point operators program test\n");
dsp32_debug_printf("Type a number: ");
number = dsp_debug_read_q(DSP32_QA, DSP32_QB);
dsp32_debug_printf("Number to compute: %f\n", number);
// 32-bit fixed point cosine
cycle_count = Get_sys_count();
result = dsp32_op_cos(number);
cycle_count = Get_sys_count() - cycle_count;
dsp32_debug_printf("cos(%f)\t\t%f\t(%i cycles)\n", number, result, cycle_count);
// 32-bit fixed point sine
cycle_count = Get_sys_count();
result = dsp32_op_sin(number);
cycle_count = Get_sys_count() - cycle_count;
dsp32_debug_printf("sin(%f)\t\t%f\t(%i cycles)\n", number, result, cycle_count);
// 32-bit fixed point arc cosine
cycle_count = Get_sys_count();
result = dsp32_op_acos(number);
cycle_count = Get_sys_count() - cycle_count;
dsp32_debug_printf("acos(%f)\t\t%f\t(%i cycles)\n", number, result, cycle_count);
// 32-bit fixed point arc sine
cycle_count = Get_sys_count();
result = dsp32_op_asin(number);
cycle_count = Get_sys_count() - cycle_count;
dsp32_debug_printf("asin(%f)\t\t%f\t(%i cycles)\n", number, result, cycle_count);
// 32-bit fixed point random
dsp_op_srand(number);
cycle_count = Get_sys_count();
result = dsp32_op_rand();
cycle_count = Get_sys_count() - cycle_count;
dsp32_debug_printf("rand()\t\t\t\t%f\t(%i cycles)\n", result, cycle_count);
// 32-bit fixed point square root
cycle_count = Get_sys_count();
result = dsp32_op_sqrt(number);
cycle_count = Get_sys_count() - cycle_count;
dsp32_debug_printf("sqrt(%f)\t\t%f\t(%i cycles)\n", number, result, cycle_count);
// 32-bit fixed point absolute
cycle_count = Get_sys_count();
result = dsp32_op_abs(number);
cycle_count = Get_sys_count() - cycle_count;
dsp32_debug_printf("abs(%f)\t\t%f\t(%i cycles)\n", number, result, cycle_count);
// 32-bit fixed point natural logarithm
cycle_count = Get_sys_count();
result = dsp32_op_ln(number);
cycle_count = Get_sys_count() - cycle_count;
dsp32_debug_printf("ln(%f)\t\t%f\t(%i cycles)\n", number, result, cycle_count);
// 32-bit fixed point binary logarithm
cycle_count = Get_sys_count();
result = dsp32_op_log2(number);
cycle_count = Get_sys_count() - cycle_count;
dsp32_debug_printf("log2(%f)\t\t%f\t(%i cycles)\n", number, result, cycle_count);
// 32-bit fixed point common logarithm
cycle_count = Get_sys_count();
result = dsp32_op_log10(number);
cycle_count = Get_sys_count() - cycle_count;
dsp32_debug_printf("log10(%f)\t\t%f\t(%i cycles)\n", number, result, cycle_count);
// 32-bit fixed point exponential
cycle_count = Get_sys_count();
result = dsp32_op_exp(number);
cycle_count = Get_sys_count() - cycle_count;
dsp32_debug_printf("exp(%f)\t\t%f\t(%i cycles)\n", number, result, cycle_count);
// 32-bit fixed point power
cycle_count = Get_sys_count();
result = dsp32_op_pow(DSP32_Q(0.), number);
cycle_count = Get_sys_count() - cycle_count;
dsp32_debug_printf("pow(0.5, %f)\t\t%f\t(%i cycles)\n", number, result, cycle_count);
while(1);
}