Hello,
Does anyone know if an alternative code to receive signal from the KeeLoq controller made for Arduino should be subject to the license conditions imposed by Microchip?
Microchip offers the KeeLoq standard under a license to use.
There are 3 types of KeeLoq, Classic (HCSxxx), Advanced (MCS3122) and Ultimate (MCS3142) (AES128).
HCxxx:
• HCS200 • HCS360 • HCS500 • HCS201 • HCS361 • HCS512 • HCS300 • HCS362 • HCS515 • HCS301 • HCS410 • HCS320 • HCS412
I found a code for HCS301 (I don't know if it works):
#define LED_PIN 13
#define HCS_RECIEVER_PIN 2 // Pin al que está conectado el receptor para los mandos.
byte Canal;
class HCS301 {
public:
unsigned BatteryLow : 1; // En el llavero estaba la batería.
unsigned Repeat : 1; // повторная посылка
unsigned BtnNoSound : 1;
unsigned BtnOpen : 1;
unsigned BtnClose : 1;
unsigned BtnRing : 1;
unsigned long SerialNum;
unsigned long Encript;
void print();
};
volatile boolean HCS_Listening = true;
byte HCS_preamble_count = 0;
uint32_t HCS_last_change = 0;
uint32_t HCS_start_preamble = 0;
uint8_t HCS_bit_counter; // счетчик считанных бит данных
uint8_t HCS_bit_array[66]; // массив считанных бит данных
#define HCS_TE 400 // типичная длительность имульса Te
#define HCS_Te2_3 600 // HCS_TE * 3 / 2
HCS301 hcs301;
#define HCS_DEBUG_
#ifdef HCS_DEBUG
uint16_t HCS_PulseDuration[12];
uint16_t HCS_BitDuration[66];
uint32_t HCS_msg_duration;
struct dta_ {
uint16_t delay;
byte f;
byte st;
};
volatile dta_ arr[1000];
volatile int poz_a = 0,poz_b = 0;
#endif
void HCS301::print(){
String btn;
if (BtnRing == 1) btn += "Ring";
if (BtnClose == 1) btn += "Close";
if (BtnOpen == 1) btn += "Open";
if (BtnNoSound == 1) btn += "NoSound";
String it2;
it2 += " Serie ";
it2 += SerialNum;
it2 += " ";
it2 += "Rolling Code ";
it2 += Encript;
it2 += btn;
it2 += " BatteryLow=";
it2 += BatteryLow;
it2 += " Rep=";
it2 += Repeat;
//Serial.println(it2);
Serial.print("Canal ");
Serial.print(Canal,HEX);
Serial.print("\t");
Serial.print("Serie ");
Serial.print(SerialNum,HEX);
Serial.print("\t");
Serial.print("Rolling Code ");
Serial.print(Encript,HEX);
Serial.println("");
}
void setup() {
Serial.begin(9600);
attachInterrupt(0, HCS_interrupt, CHANGE);
pinMode(LED_PIN, OUTPUT);
pinMode(HCS_RECIEVER_PIN, INPUT);
}
void loop() {
if(HCS_Listening == false){
HCS301 msg;
memcpy(&msg,&hcs301,sizeof(HCS301));
msg.print();
#ifdef HCS_DEBUG
if(msg.SerialNum != 639){
Serial.println("Raw >>>>>>>>>>>>>>>>>>>>>>>");
while(1){
if(poz_b == poz_a) break;
Serial.println(String(poz_b)+String("
")+String(arr[poz_b].delay)+String(" ")+String(arr[poz_b].f == 0 ?
"LOW":"HIGH")+String(" ")+String(arr[poz_b].st));
poz_b++;
}
Serial.println("Data >>>>>>>>>>>>>>>>>>>>>>>");
for(int i = 0;i<66;i++){ Serial.println(HCS_bit_array[i]); }
} else {
}
poz_a = 0,poz_b = 0;
#endif
HCS_Listening = true;
}
}
//
void HCS_interrupt(){
if(HCS_Listening == false){
return;
}
uint32_t cur_timestamp = micros();
uint8_t cur_status = digitalRead(HCS_RECIEVER_PIN);
uint32_t pulse_duration = cur_timestamp - HCS_last_change;
HCS_last_change = cur_timestamp;
#ifdef HCS_DEBUG
if(poz_a < 999){
arr[poz_a].delay = pulse_duration;
arr[poz_a].f = cur_status == HIGH ? 0 : 1;
poz_a++;
}
#endif
// ловим преамбулу
if(HCS_preamble_count < 12){
if(cur_status == HIGH){
if( ((pulse_duration > 200) && (pulse_duration < 400)) || HCS_preamble_count == 0){
// начало импульса преамбулы
if(HCS_preamble_count == 0){
HCS_start_preamble = cur_timestamp; // Отметим время старта преамбулы
}
} else {
// поймали какую то фигню, неправильная пауза между импульсами
HCS_preamble_count = 0; // сбрасываем счетчик пойманных импульсов преамбулы
goto exit;
}
} else {
// конец импульса преамбулы
if((pulse_duration > 400) && (pulse_duration < 600)){
#ifdef HCS_DEBUG
HCS_PulseDuration[HCS_preamble_count] = pulse_duration;
#endif
// поймали импульс преамбулы
HCS_preamble_count ++;
#ifdef HCS_DEBUG
arr[poz_a-1].st = HCS_preamble_count;
#endif
if(HCS_preamble_count == 12){
// словили преамбулу
//HCS_Te = (cur_timestamp - HCS_start_preamble) / 23; // вычисляем длительность базового импульса Te
//HCS_Te2_3 = HCS_Te * 3 / 2;
HCS_bit_counter = 0;
goto exit;
}
} else {
// поймали какую то фигню
HCS_preamble_count = 0; // сбрасываем счетчик пойманных импульсов преамбулы
goto exit;
}
}
}
// ловим данные
if(HCS_preamble_count == 12){
if(cur_status == HIGH){
if(((pulse_duration > 300) && (pulse_duration < 900)) || HCS_bit_counter == 0){
// начало импульса данных
} else {
// неправильная пауза между импульсами
HCS_preamble_count = 0;
goto exit;
}
} else {
// конец импульса данных
if((pulse_duration > 300) && (pulse_duration < 900)){
HCS_bit_array[65 - HCS_bit_counter] = (pulse_duration >
HCS_Te2_3) ? 0 : 1; // импульс больше, чем половина от Те * 3 поймали 0, иначе 1
#ifdef HCS_DEBUG
HCS_BitDuration[HCS_bit_counter] = pulse_duration;
#endif
HCS_bit_counter++;
#ifdef HCS_DEBUG
arr[poz_a-1].st = HCS_bit_counter;
#endif
if(HCS_bit_counter == 66){
// поймали все биты данных
HCS_Listening = false; // отключем прослушку приемника, отправляем пойманные данные на обработку
HCS_preamble_count = 0; // сбрасываем счетчик пойманных импульсов преамбулы
#ifdef HCS_DEBUG
HCS_msg_duration = cur_timestamp - HCS_start_preamble;
#endif
hcs301.Repeat = HCS_bit_array[0];
hcs301.BatteryLow = HCS_bit_array[1];
hcs301.BtnNoSound = HCS_bit_array[2];
hcs301.BtnOpen = HCS_bit_array[3];
hcs301.BtnClose = HCS_bit_array[4];
hcs301.BtnRing = HCS_bit_array[5];
Canal=HCS_bit_array[5]+2*HCS_bit_array[4]+4*HCS_bit_array[3]+8*HCS_bit_array[2];
hcs301.SerialNum = 0;
for(int i = 6; i < 34;i++){
hcs301.SerialNum = (hcs301.SerialNum << 1) + HCS_bit_array[i];
};
uint32_t Encript = 0;
for(int i = 34; i < 66;i++){
Encript = (Encript << 1) + HCS_bit_array[i];
};
hcs301.Encript = Encript;
}
} else {
// поймали хрень какую то, отключаемся
HCS_preamble_count = 0;
goto exit;
}
}
}
exit:;
//digitalWrite(LED_PIN,cur_status);
}
As I understand it, to work with KeeLoq it is necessary to accept the conditions, this one is for the decoder (and it has for the encoder):
Terms and Conditions:
End User License Agreement for
Microchip KEELOQ(r) Decoder Software and Proprietary DocumentationIMPORTANT - READ CAREFULLY. This License Agreement is a legal agreement between you (either an individual or a single entity) and Microchip Technology Incorporated and its subsidiary Microchip Technology (Barbados) Incorporated (in the aggregate referred to as "Microchip") for Microchip’s KEELOQ® Software (hereinafter the "Software") and accompanying proprietary documentation (hereinafter the "Proprietary Documentation"). The Software and Proprietary Documentation provided herewith are intended, and supplied to you, for use solely and exclusively in a system that incorporates Microchip encoder and Microchip decoder products and for no other use or purpose whatsoever. Microchip will license the Software and Proprietary Documentation to you only if you first accept the terms of this agreement. By indicating acceptance below, or by otherwise installing, copying or using the Software or Proprietary Documentation, you are agreeing to be bound by the terms of this agreement. If you do not agree to the terms of this agreement, so indicate below and promptly destroy the software or return the unused Software for a full refund of moneys paid, if any.
THE SOFTWARE AND PROPRIETARY DOCUMENTATION MAY BE ACCESSED ONLY IF YOU ACCEPT THE TERMS AND CONDITIONS OF THIS LICENSE AGREEMENT. PLEASE INDICATE YOUR ACCEPTANCE OR NON-ACCEPTANCE BY SELECTING "I ACCEPT" OR "I DO NOT ACCEPT" AS INDICATED BELOW.
The Software and Proprietary Documentation are protected by U.S. copyright laws and international copyright treaties, as well as other intellectual property laws and treaties.
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All right, title and interest, including intellectual property rights, in and to the Software and the Proprietary Documentation shall remain in Microchip. The Software and Proprietary Documentation are licensed pursuant to this agreement, not sold. Microchip owns all proprietary rights to the KEELOQ® secure access control technology, including, but not limited to, code hopping, bi-directional authentication and self learning as implemented in KEELOQ® technology including all hardware and software implementations of the technology. Microchip reserves all rights not expressly granted to you.
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EXCEPT AS SPECIFICALLY PROVIDED IN THE PREVIOUS TWO SENTENCES, THE
SOFTWARE AND PROPRIETARY DOCUMENTATION IS PROVIDED "AS IS" WITHOUT
WARRANTY OF ANY KIND, EITHER EXPRESS OR IMPLIED, INCLUDING WITHOUT
LIMITATION, ANY WARRANTY OF MERCHANTABILITY, WARRANTY OF FITNESS FOR
A PARTICULAR PURPOSE, AND WARRANTY OF NON-INFRINGEMENT OF ANY
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OTHER DOCUMENTATION PROVIDED UNDER THIS AGREEMENT IS ASSUMED BY YOU,
AND MICROCHIP DISCLAIMS ALL RESPONSIBILITY FOR THE ACCURACY OR
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WARRANT THE FUNCTIONS CONTAINED IN THE SOFTWARE WILL MEET YOUR
REQUIREMENTS OR THAT THE OPERATION OF THE SOFTWARE WILL BE
UNINTERRUPTED OR ERROR-FREE, OR THAT ANY DEFECTS IN THE SOFTWARE WILL
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INCIDENTAL, SPECIAL, INDIRECT OR CONSEQUENTIAL DAMAGES, LOST PROFITS
OR LOST DATA, COST OF PROCUREMENT OF SUBSTITUTE GOODS, TECHNOLOGY OR
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OF ANY PRODUCT(S) OR SYSTEM(S) EMPLOYING KEELOQ IS SOLELY YOUR
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TO INDEMNIFY OR DEFEND YOU IN THE EVENT THAT A THIRD PARTY
ASSERTS OR PROVES A CLAIM THAT ONE OR MORE OF YOUR SYSTEMS OR
PRODUCTS EMPLOYING KEELOQ INFRINGE A THIRD PARTY’S PATENTS,
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CLAIM, INCLUDING BUT NOT LIMITED TO ANY SUCH RIGHT AS MAY BE
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OR OTHER INTELLECTUAL PROPERTY RIGHT WHERE THE ALLEGED
INFRINGEMENT IS BASED ON (a) MICROCHIP’S COMPLIANCE WITH YOUR
DESIGNS OR SPECIFICATIONS, OR (b) YOUR USE OF KEELOQ IN
COMBINATION WITH ANY OTHER PRODUCT OR IN A PROCESS (WHETHER
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EVENT SHALL MICROCHIP BE LIABLE TO YOU OR YOUR CUSTOMERS FOR ANY
SPECIAL, INCIDENTAL, PUNITIVE OR CONSEQUENTIAL DAMAGES FOR
INTELLECTUAL PROPERTY INFRINGEMENT, INCLUDING BUT NOT LIMITED TO
ANY CLAIMS FOR INDEMNITY OR CONTRIBUTION.General.
Nothing in this agreement constitutes a waiver of Microchip’s
rights under U.S. copyright laws or any other federal, state,
local or foreign law. You are responsible for installation,
management and operation of the Software. This agreement shall
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If any provision of this agreement is found void or
unenforceable, the remainder of the agreement will remain valid
and enforceable according to its terms. If any remedy provided
is determined to have failed of its essential purpose, all
limitations of liability and exclusion of damages set forth in
the limited warranty shall remain in effect.You agree to comply with all export laws, restrictions and regulations
of the U.S. Department of Commerce or other United States or foreign
agency or authority.If you have any questions concerning this agreement, please write
Microchip Technology Inc. 2355 W. Chandler Blvd. Chandler, AZ 85224
USA, ATTN: Legal DepartmentCopyright © 2006, Microchip Technology Incorporated, 2355 West
Chandler Blvd, Chandler, AZ 85224-6199, U.S.A. All rights reserved.
Microchip and KEELOQ® are registered trademarks of Microchip
Technology Incorporated. Decoder 071906
I found a code for PIC18F too:
TB003 - An Introduction to KeeLoq Code Hopping:
AN1683A - Introduction to Ultimate KeeLoq Technology:
DS50033B - Programming KEELOQ Devices with the PRO MATE II Device Programmer:
AN745 - Modular Mid-Range PICmicro KeeLoq Decoder in C:
00745a_c.pdf (318.9 KB)
An745_c.zip (17.1 KB)
