C8051F410DK Silicon Laboratories Inc, C8051F410DK Datasheet - Page 122
C8051F410DK
Manufacturer Part Number
C8051F410DK
Description
KIT DEV FOR C8051F41X
Manufacturer
Silicon Laboratories Inc
Type
MCUr
Specifications of C8051F410DK
Contents
Evaluation Board, Power Supply, USB Cables, Adapter and Documentation
Processor To Be Evaluated
C8051F41x
Interface Type
USB
Silicon Manufacturer
Silicon Labs
Core Architecture
8051
Silicon Core Number
C8051F410
Silicon Family Name
C8051F41x
Lead Free Status / RoHS Status
Contains lead / RoHS non-compliant
For Use With/related Products
Silicon Laboratories C8051F41x
Lead Free Status / Rohs Status
Lead free / RoHS Compliant
Other names
336-1314
Available stocks
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Part Number
Manufacturer
Quantity
Price
Company:
Part Number:
C8051F410DK
Manufacturer:
Silicon Labs
Quantity:
135
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C8051F410/1/2/3
For example, the 16-bit 'F41x CRC algorithm can be described by the following code:
unsigned short UpdateCRC (unsigned short CRC_acc, unsigned char CRC_input)
{
}
The following table lists several input values and the associated outputs using the 16-bit 'F41x CRC algo-
rithm (an initial value of 0xFFFF is used):
122
unsigned char i;
#define POLY 0x1021
// Create the CRC "dividend" for polynomial arithmetic (binary arithmetic
// with no carries)
CRC_acc = CRC_acc ^ (CRC_input << 8);
// "Divide" the poly into the dividend using CRC XOR subtraction
// CRC_acc holds the "remainder" of each divide
//
// Only complete this division for 8 bits since input is 1 byte
for (i = 0; i < 8; i++)
{
}
// Return the final remainder (CRC value)
return CRC_acc;
// Check if the MSB is set (if MSB is 1, then the POLY can "divide"
// into the "dividend")
if ((CRC_acc & 0x8000) == 0x8000)
{
}
else
{
}
// if so, shift the CRC value, and XOR "subtract" the poly
CRC_acc = CRC_acc << 1;
CRC_acc ^= POLY;
// if not, just shift the CRC value
CRC_acc = CRC_acc << 1;
0x00, 0x00, 0xAA, 0xBB, 0xCC
0xAA, 0xBB, 0xCC
Table 14.1. Example 16-bit CRC Outputs
Input
0x8C
0x7D
0x63
// loop counter
Rev. 1.1
0x4ECA
0xBD35
0x6CF6
0xB1F4
0xB166
Output
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