diff --git a/Software/CRC_Test/crc.c b/Software/CRC_Test/crc.c
index 985c6a1..e323651 100644
--- a/Software/CRC_Test/crc.c
+++ b/Software/CRC_Test/crc.c
@@ -42,14 +42,28 @@ int main()
 {
     // Testweise Pruefsumme berechnen und ausgeben
     char msg[] = "Hello World!";
-    uint32_t crc = calcCRC32((uint8_t*) msg, strlen(msg), 0x4C11DB7, 0xFFFFFFFF, 0xFFFFFFFF, 1, 1);
+    uint32_t crc = calcCRC32((uint8_t*) msg, strlen(msg), 0xF4ACFB13, 0xFFFFFFFF, 0xFFFFFFFF, 1, 1);
     printf("CRC32 of '%s': 0x%08x\n\n", msg, crc);
 
-    uint8_t crc8 = calcCRC8((uint8_t*) msg, strlen(msg));
-    printf("CRC8 of '%s': 0x%02x\n\n", msg, crc8);
+    char msg2[] = "ABCDEFGHIJKL";
+    crc = calcCRC32((uint8_t*) msg2, strlen(msg2), 0xF4ACFB13, 0xFFFFFFFF, 0xFFFFFFFF, 1, 1);
+    printf("CRC32 of '%s': 0x%08x\n\n", msg2, crc);
 
-    uint16_t crc16 = calcCRC16((uint8_t*) msg, strlen(msg));
-    printf("CRC16 of '%s': 0x%04x\n\n", msg, crc16);
+    uint8_t data[128];
+    for (int i = 0; i < 128; i++) data[i] = 0;
+    for (uint32_t i = 0; i < 32; i++) {
+        data[4*i] = i;
+    }
+    crc = calcCRC32((uint8_t*) data, 64, 0xF4ACFB13, 0xFFFFFFFF, 0xFFFFFFFF, 0, 0);
+    printf("CRC32: 0x%08x\n\n", crc);
+    crc = calcCRC32((uint8_t*) (data+64), 64, 0xF4ACFB13, 0xFFFFFFFF, 0xFFFFFFFF, 0, 0);
+    printf("CRC32: 0x%08x\n\n", crc);
+
+    // uint8_t crc8 = calcCRC8((uint8_t*) msg, strlen(msg));
+    // printf("CRC8 of '%s': 0x%02x\n\n", msg, crc8);
+
+    // uint16_t crc16 = calcCRC16((uint8_t*) msg, strlen(msg));
+    // printf("CRC16 of '%s': 0x%04x\n\n", msg, crc16);
 
     // test mit crccalc.com
     uint8_t daten[4] = {0x12, 0x34, 0x56, 0x78};