SYSTEMENTWURF PR 1

2024-01-09 08:41:42 +01:00
parent 0d1b73e3e0
commit b57abbe1ac
4 changed files with 411 additions and 15 deletions
@@ -3,10 +3,78 @@
 #include "system/data_channel.h"
 #include "system/float_word.h"

-int task_rand_run( void * task ) {
+#include <stdio.h>

-    // TODO
+int task_rand_run( void * data )
+{

-    return 0;
+	rand_config * task = ( rand_config * ) data;
+
+
+	uint32_t data_channel_base = task->base.sink;
+
+	float seed = task->seed;		//1.3
+	float abs_min = task->abs_min;		//0.125
+	float abs_max = task->abs_max;		//9.0
+
+	float_word random_number;
+	random_number.value = seed;
+
+	uint32_t mask_bit_0 = 0x1;
+	uint32_t mask_bit_1 = 0x2;
+	uint32_t mask_bit_21 = 0x200000;
+	uint32_t mask_bit_31 = 0x80000000;
+
+	uint32_t exponent = 0;
+	uint32_t shifted_exponent = 0;
+	uint32_t shifted = 0;
+	uint32_t shifted_modifiziert = 0;
+
+	data_channel_clear( data_channel_base );
+
+	for(uint32_t i = 0; i < DATA_CHANNEL_DEPTH; ++i)
+	{
+
+		//Bits extrahieren:
+		uint32_t bit_0 = (random_number.word & mask_bit_0) >> 0;
+		uint32_t bit_1 = (random_number.word & mask_bit_1) >> 1;
+		uint32_t bit_21 = (random_number.word & mask_bit_21) >> 21;
+		uint32_t bit_31 = (random_number.word & mask_bit_31) >> 31;
+
+		//XOR:
+		uint32_t xor_result = bit_0 ^ bit_1 ^ bit_21 ^ bit_31;
+
+		//Shifted:
+		shifted = random_number.word >> 1;
+
+		//shifted &= ~(0x80000000);
+		shifted |= (xor_result << 31);
+
+		printf("%08x %08x %d \n", random_number.word, shifted, xor_result);
+
+		//Skalierung:
+#if 1
+		exponent = (shifted >> 23) & 0xFF;
+		if(exponent & (1 << 7)){
+			exponent &= (0b10000001);
+		}else{
+			exponent |= (0b01111100);
+		}
+
+
+		shifted_modifiziert = shifted;
+		shifted_exponent = exponent << 23;
+		shifted_modifiziert &= 0x807FFFFF;
+		shifted_modifiziert |= shifted_exponent;
+#endif
+
+		random_number.word = shifted_modifiziert;
+		data_channel_write( data_channel_base, random_number.word );
+		random_number.word = shifted;
+
+	}
+
+
+	return 0;
 }

@@ -2,9 +2,54 @@
 #include "system/data_channel.h"
 #include "system/float_word.h"

+#include <math.h>
+
 int task_sine_run( void * data ) {
+	
+	sine_config * task = ( sine_config * ) data;

-    // TODO

-    return 0;
+
+	uint32_t data_channel_base = task->base.sink;
+
+	uint32_t samples_per_periode = task->samples_per_periode;
+	float phase = task->phase;
+	float amplitude = task->amplitude;
+
+
+
+	data_channel_clear( data_channel_base );
+#if 0
+
+	for (uint32_t i = 0; i < (DATA_CHANNEL_DEPTH/samples_per_periode); ++i)
+	{
+
+		for(uint32_t j = 0; j < (samples_per_periode); ++j)
+		{
+
+		float_word res;
+		res.value = amplitude * sin((2.0*M_PI/samples_per_periode) * j + phase);
+
+
+
+		data_channel_write( data_channel_base, res.word );
+		}
+
+	}
+#endif
+	
+	for (uint32_t i = 0; i < DATA_CHANNEL_DEPTH; ++i)
+	{
+
+		float_word res;
+		res.value = amplitude * sin((2.0*M_PI/samples_per_periode) * i + phase);
+
+
+
+		data_channel_write( data_channel_base, res.word );
+
+	}
+
+
+    	return 0;
 }