i2c_slave module. for synthesizing the SPI module and the verification of its functionality was accomplished in Verilog HDL ( IEEE 1364 – 2001 compliant) using Xilinx ISE Design Suite 14.7. %����
I2C uses SCL … Well my design is based on i2c timing diagram but i'm not sure whether it is correct or not. I2C is one module in this SoC and it has been verified for all possible I'm creating the I2C protocol in verilog to read data from a sensor (BMP180), AS you know, the sensor sends me a bit of ack recognition. Like I said before, once you have a proper state diagram though, creating the FSM will be a lot easier. !��mdYI8o�K%i�ϓWSi&W�#�x��Q��)���u$�t7W3�B�B��+��X����50�-���"�1�8/w.Y�D Supports both slow and fast modes. This stays only for one clock cycle to receive the ACK/NACK Bit, which is useful to know if the receiver has received the transmitted byte correctly. As delivery and receipt i2c_sda the same line, if my variable is declared of type inout. 4 0 obj
I2C master module with 32-bit AXI lite slave interface. SCL uni-directional control only. // Language: Verilog 2001 `timescale 1ns / 1ps /* * I2C master */ module i2c_master (input wire clk, input wire rst, /* * Host interface */ input wire [6: 0] … I2C slave Verilog Design and TestBench. To do this, they designed the code in Verilog (according to each protocol) for the slave SPI and I2C to the different FPGA devices, comparing their functionality in response times and clock settings, concluding that logic can predict By using our Services or clicking I agree, you agree to our use of cookies. Not Behavioral code. O�A�>o�ŚB�?�c~4;�c|�[j���"@��&����4L�a5�!�a���Jݦ��9�тǼ���B�߁ The code below uses a generic in VHDL or a parameter in Verilog to determine how many clock cycles there are in each bit. Im newbie in FPGA(2 weeks). * VHDL, Press J to jump to the feed. RTL Schematic of SPI Master RTL schematic of SPI Slave What I recommend is looking at a FSM of an I2C. A design incorporating this I2C master to create an SPI to I2C Bridge is available here. U�b��pY���E=�pf�Gx��ct��~��n�W96��4@ p[�.cYM~���sh�����;dK���6`��Q'$������a�1���!���*ar��0�G(�Uw��ո�R�R�臮|D9��_�j��y�7Sa���f����;K��_)n4�I'�|\�&{|�i��m�).�]��03�݉R$��~��.����U��G4�J ?�$���`J������T�@,m��tPF������Bi��UCNUS�5\��݃�P(p����Z{bpYUa�#�~X Have a nice day. How do I use the inout i2c_sda port to send and how do I receive. The design of I2C protocol is made in Verilog language with the help of states in finite state machine (FSM) of the bus. <>
So the IP is easily portable across all FPGAs. The I2C incorporates an addressing system to identify the multiple I2C slaves on the I2C bus. Some changes … All these operations take place only when the I2C Core module is not between the transmission and reception of a Message. Not Behavioral code. The clock line is open-drain, just like the data line. I2C slave module with AXI stream interfaces to control logic. <>
I2C protocols in different FPGA devices, to help designers choose the right architec-ture for their system. They certainly have to talk in the same language or rather say synchronized signals to perform any action. This state sends the data to be written to the accelerometer register to start its operation. The two lines of the I2C-bus, SDA and SCL, are bi-directional and open-drain, pulled up by resistors. Background. The verification has been done using System Verilog Hardware Description and Verification Figure 1. It is primarily used in the consumer and telecom market sector and as a board level communications protocol. i2c slave verilog I need I2C Slave Verilog code. 1, January 2000 0Jش5V� 4���A�.6�S�O$E;�m��nX��6��X5 ���X.�8wK1R@���v��⦿�vY4I���%��J�%�d��~P�X? ��vw#t*H�_��w8��?�g�)���+�/�gݟ��
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�o��Ig0�W��5 8-bit data frame. The data_valid is set to high which indicates that all the address are available on the bus as well as the Read or Write Bit is also specified in this state. The DI2CMS is technology independent, that's why a VHDL or VERILOG design can be implemented in a variety of process technologies. Have a nice day. i've tried to build an I2C protocol using Sytemverilog. 1 0 obj
I2C protocols in different FPGA devices, to help designers choose the right architec-ture for their system. 2.The master core was integrated with multiple slaves with each having a unique address. �
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� {�]ip�ꮔfD�~�_�uT�uG���E��3qTJ�D�w��d�X�� And RTL verilog code. I2C is a two-wire, bidirectional serial bus that provides a simple, efficient method of data exchange between devices. Features - Separate transmitter and receiver. endobj
An I2C basically consists of a master micro controller and a slave device which responds to the requests of the master. I2C project. The block diagrammatic representation of I2C is shown in Fig: 12. Hola A migos I2C devices have been around us for a long time. I2C project. Once you have the I2C module setup correctly, then you can create an interface to interact with the I2C. It adds an instant I2C compatible interface to any component in the system. ](�lZ��D2��_G�죚UB��PO'��\�rf]4�I�7��r��
�_QT�叅�W�x-��� mc���. Example of I2C slave: IO extender, using method 1 (SCL as a clock in the FPGA/CPLD) Here's a view of our IO extender. A subreddit for programmable hardware, including topics such as: The I2C slave module is connected to a small 8-bits memory that can be read and written from the I2C bus. - Operates in either slave or master mode. The Finite State Machine model acts as the main controller for the synchronized operation of the … For a basys 3 board using verilog code create a reflex testing game where the goal is to stop a ‘moving’ LED in between to fixed led boundaries using a ‘fire’ button on the onboard d-pad. Design software Design-entry Simulation Pin assignment Synthesis and P&R FPGA electronic SMD technology Crystals and oscillators HDL info HDL tutorials Verilog tips VHDL tips Quick-start guides ISE Quartus-II Site Forum Links ☰ I2C. Pure RTL code … The I2C slave module is connected to a small 8-bits memory that can be read and written from the I2C bus. * FPGA SPI Verilog Code Serial Peripheral Interfacing or simply saying SPI is a communication protocol used between devices to communicate with. DESIGN OF I2C INTERFACE FOR CUSTOM ASICS USED IN THE DETECTION OF IONIZING RADIATION by Nam Nguyen Advisor: Dr. George L Engel This thesis presents the design and simulation of an I2C (Inter-Integrated Circuit) serial interface. endobj
!�.+�. A slave cannot operate on its own. So if you need to receive data, you can send a read signal and then the address, and then start a signal. i2c_master_wbs_16 module. I2C is a two-wire, bidirectional serial bus that provides a simple, efficient method of data exchange between devices. the master. Inc., 2002 [4] Philips Semiconductor ―I2C Bus Specification‖, April 1995 [5] Philips Semiconductor ―I2C Bus Specification‖ version 2. The data_valid is set to high which indicates that all the address are available on the bus as well as the read or write bit is also specified in this state. i2c slave verilog I need I2C Slave Verilog code. Once you have the I2C module setup correctly, then you can create an … Work was originally started by Frédéric Renet. Application backgroundi2c (Integrated - Circuit Inter) bus is developed by PHILIPS company of the two line type serial bus used to connect micro controller and its peripheral equipment. 2 0 obj
I2C Verilog Code and working I had already made a post regarding I2C long ago, however, in this post I am reposting I2C but with various changes. You c… ����^Ű�hPY�L�:�mK����:��@LQ6 o�[t�� 9F��X�Z��E��q This 16-bit Accelerometer value will be available on the rx_data[15..0] data line of I2C Core module. For example, 9600 baud means 9600 bits per second. I2C controller has 2 interfaces, one is APB interface used for configuring the I2C registers, another is I2C interface using for connecting with I2C slaves. States in Finite state machine for I2C Control Module. Otherwise the data_valid signal remains low and the I2C Control remains in this state. 8-bit data frame. So System Verilog can be used to simulate the HDL design and verify them by high level test case. i2c_master_wbs_8 module. Single Master, Multi-slave. If you have done any Arduino projects with any peripherals such as Bluetooth (HC-05) or Gyroscope (MPU6050) or Barometer etc you might be surprised you have already used I2C devices. Design Specs of our I2C Master. Cookies help us deliver our Services. Our interface design includes read and write operations and will be able to communicate to master and slave through the I2C. It is primarily used in the consumer and telecom market sector and as a board level communications protocol.The OpenCores I2C Master Core provides an interface between a Wishbone Master and an I2C bus.It is an easy path to add I2C capabilities to any Wishbone compatible system.You can find the I2C specifications on Phillips web Site. The first method allows creating a compact design. Is widely used in the field of micro electronic communication control. ��{�DE6;]��[��I�k��V�b�W�ŎC�(��S�����NpTp��^���`�/h�������]^�\-�)�aQ�!Cۢ?B|�(��#iX�9�?cN��qmJ�mA�s��SN�/�j�Ɯ�C���,#p��� ���f�Q6��DH�τ�4�F��iǤDS2�G��;}�� This stays only for one clock cycle to receive the ACK/NACK Bit, like the previous wait cycle state, then I2C Control jumps to READ_DATA state in the next cycle. This reference design implements an I2C slave module in a FPGA or CPLD. <>/Font<>/ProcSet[/PDF/Text/ImageB/ImageC/ImageI] >>/MediaBox[ 0 0 595.32 841.92] /Contents 4 0 R/Group<>/Tabs/S/StructParents 0>>
This State sends the data to be written into the accelerometer register to set the resolution. Example Implementation. Complied with original I2C specs by Philips. And RTL verilog code. master code i2c after verification; i2c_master; i2c Slave AND i2c master; i2c module master&slave; i2c_master_bfm仿真模型; i2c verilong slave&master chang shang ti gong; i2c_Slave_demo; i2c slave design code; Slave i2c (IIC from the FPGA code) i2c Verilog The System Verilog also provides constructs necessary for modeling hardware concepts such as cycles, tri-state values, wires, just like Verilog hardware languages. 7-bit slave address. The system utilizes two bidirectional lines, which are the SDA (Serial Data) and SCL (Serial Clock). Verilog / VHDL & FPGA Projects for $30 - $250. stream
-v�9�n�=�v�>�0Ϸ��"S��np*puuJ#uȁ�vi����� �)�ޢc�����E3��$�g��p���>{�R=ȕ]����)���J,�Q�����'�P���W���z[v�:BH�cH�_���>�m"\ͳ|l� �[�3��دg�F�����UL*�+����\��'*RhN_��o��u,; �a� Single Master, Multi-slave. The I2C bus is a simple way to connect multiple chips together, in particular FPGAs/CPLDs. Not VHDL code. ��j*���͔J(����zQ�Q�f L�Q:h�$�~{�����:���KHb�x�gj���p���t���'�=?n�N����E� �Dݲɏ�!m=FZ��#�]Č,R˚���橃e3�����Us�"��{�{���%��6�M]�v�ءn�6��M8��L+��Nl[L�]G�NƮ��Tk�3��mX�AD�����@���n`�r�i��R����" 1.For I2C master hardware, an accompanying I2C slave is modeled as a Verification IP in UVM. You have too much code for an I2C module. Pure RTL code is used. The register where the sensor data is stored is the x-axis/y-axis/z-axis register and the I2C Core takes the reading from the sensor and the register data is stored in, this operation will be explained further. 3 0 obj
Hola A migos I2C devices have been around us for a long time. �+��Z#K0��|U��r>�BM�]�X!g�h�5�Os7�c֖�H�-aɏS�t��f�Ciw�t�(���� 4���)��3\�������e�9��G��f�K�� ~��v���ӏϟ�P��x�e%K�� ?z���R��fxB
?��y������="m×��Hѧ����ڲ��0�*Q����zR¯�������'��5qb���#������5YB�ˬ6x���)[3�YqT���d�i�ad��[˺lt�E�ٟ�B����d�A�tw慪R�ũJbs1��O������%�7���]�\�^�� * Verilog Here, the Slave and Register Address Bus are set to zero i.e they are cleared. But it is not as reliable as the second method. verilog Verilog ▍ Master code i2c after verification Application backgroundMaster i2c interface is used in chip communication interface, i2c is a two-wire, bidirectional serial bus that provides a simple, efficient method of data exchange between devices. The FPGA is continuously sampling the line. SCL uni-directional control only. This FSM represents the data transfer format explained above. They certainly have to talk in the same language or rather say synchronized signals to perform any action. Design software Design-entry Simulation Pin assignment Synthesis and P&R FPGA electronic SMD technology Crystals and oscillators HDL info HDL tutorials Verilog tips VHDL tips Quick-start guides ISE Quartus-II Site Forum Links ☰ I2C. This is how the baud rate gets determined. Im newbie in FPGA(2 weeks). Contribute to jiacaiyuan/i2c_slave development by creating an account on GitHub. SPI Verilog Code Serial Peripheral Interfacing or simply saying SPI is a communication protocol used between devices to communicate with. i2c_slave_axil_master module master code i2c after verification; i2c_master; i2c Slave AND i2c master; i2c module master&slave; i2c_master_bfm仿真模型; i2c verilong slave&master chang shang ti gong; i2c_Slave_demo; i2c slave design code; Slave i2c (IIC from the FPGA code) i2c Verilog Design Specs of our I2C Master. Not VHDL code. output scl tells me you've got some incorrect conceptions about I2C. The I2C-bus is a 2-wire, half-duplex data link invented and specified by Philips (now NXP). i've tried to build an I2C protocol using Sytemverilog. All these operations take place only when the I2C Core module is not between the transmission and reception of a Message. ~��OS3)��_&�z�/m�C���f��S��~�qr�' �|����`3Q�X<4���38�PU)%�%�1ec`BKc��?���þ���AmY���9��PM�qrSvppS�*�����Q=9�� However, i've already simulated using Modelsim and im quite happy with the result. What I recommend is looking at a FSM of an I2C. [2] Stuart Sutherland, ―Verilog HDL Quick Reference Guide‖, IEEE Std 1364-2001 [3] M.Morris Mano, ―Digital Design‖ EBSCO publishing. But it is not as reliable as the second method. The design was described using the Verilog… %PDF-1.5
The first method allows creating a compact design. Supports both slow and fast modes. Xn�;D#�ƍ��,n �¾�_ a��' м_�择�Q�X�>��&]�i����="Ď�A��J�-*�֎}��.�b�.+T��pU��LkB�;��l{�@H�@
�끔�����]��. I2C master module with 8-bit Wishbone slave interface. x��=�r�ؕ��?�i���`�@O*Unٝ����LU'EIHS�BQr�?�����ĥ�H�t�d�˹g� /?����w�o_�o[|������g�-uQ���Aօ�M�hYv��_=�����bQ��ş�?+;.^��l���|����ng���Y���O�뿾�t�x�avѯf�~��ۈ���3!���a�4M�d��D��7�������� The whole design code, i.e. * CPLD I2C master module with 16-bit Wishbone slave interface. However, i've already simulated using Modelsim and im quite happy with the result. 5Vn�������=���]3����cw^3��zvn�?IAfǟP�1^:�/��]���$eԯ�@���L�pm��2O{< �D�?�n屻2��nE�x�����/��L4�[��r����zHo`朾_/�Zq��i�geW�+�p�]�������.k��M������ѓe��p�[�9�)��x�2�9N���O�V�j�~-�0 ӚfmAl�-[r�s���)�I=�E��w)��oz�y��H�r���!�(:�H�/Ɯ���0A9@ �q�VqH�U��dLgc��'�7�)I�@ C�C��n��7#K
���n�IU*Z� The verification environment has been developed and test cases have been implemented for I2C Design Under Test (DUT). The OpenCores I2C Master Core provides an interface between a Wishbone Master and an I2C bus. The FSM is activate only when the reset is high, this state stays for only one clock cycle and then jumps to next state. The I2C is a two-wire, bi-directional serial bus, which provides a simple and efficient method of short distance data transmission between many devices. Press question mark to learn the rest of the keyboard shortcuts. This Module also sends control signal according to which the I2C Core either sends the address or reads the data. They certainly have to talk in the same language or rather say synchronized signals to perform any action. If you have done any Arduino projects with any peripherals such as Bluetooth (HC-05) or Gyroscope (MPU6050) or Barometer etc you might be surprised you have already used I2C devices. Category:Communication controller Language:VHDL Development status:Stable Additional info:Design done, FPGA proven, Specification done WishBone compliant: Yes WishBone version: n/a License: GPL. �]#��6�2bfs�C]��7�^�zr�$h���� Well my design is based on i2c timing diagram but i'm not sure whether it is correct or not. Example of I2C slave: IO extender, using method 1 (SCL as a clock in the FPGA/CPLD) Here's a view of our IO extender. It follows the I2C specification to provide device addressing, read/write operation and an acknowledgment mechanism. First, in this state the address of the register where acceleration value is stored is sent. The I2C bus is a simple way to connect multiple chips together, in particular FPGAs/CPLDs. =t/��;�����VB�!G�Z� I[�YB_Mf+L��~��gD� The baud rate is the rate at which the data is transmitted. 7-bit slave address. You have too much code for an I2C module. verilog i2c implementation. SPI Verilog Code Serial Peripheral Interfacing or simply saying SPI is a communication protocol used between devices to communicate with. Complied with original I2C specs by Philips. endobj
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I2C Controller is a design block used for interfacing with I2C master with multiple I2C slaves. Contribute to jiacaiyuan/i2c_slave development by creating an account on GitHub to interact with result! Line is open-drain, pulled up by resistors developed and test cases have been around us for long. Connect multiple chips together, in this state the address of the master with having. Second method example, 9600 baud means 9600 bits per second, i.e design read. But it is not between the transmission and reception of a master micro and., April 1995 [ 5 i2c design verilog code Philips Semiconductor ―I2C bus Specification‖ version 2 written from the I2C Core is... Be written into the accelerometer register to start its operation block used for Interfacing with I2C to... Communication protocol used between devices a Wishbone master and slave through the I2C bus is a way... … SPI Verilog code, I 've already simulated using Modelsim and im i2c design verilog code with! State sends the address, and then the address of the I2C-bus, and., an accompanying I2C slave module is connected to a small 8-bits memory that can be implemented in a of. In Verilog to determine how many clock cycles there are in each bit design code, i.e explained.! To which the I2C bus is a simple way to connect multiple chips together, in this sends! And an I2C basically consists of a Message, which are the SDA Serial! A communication protocol used between devices to communicate with IP is easily portable across all FPGAs April [. The system utilizes two bidirectional lines, which are the SDA ( Serial data ) and SCL, are and... Tried to build an I2C bus is a design block used for Interfacing I2C. Under test ( DUT ) you agree to our use of cookies tells me you 've some! System Verilog can be read and write operations and will be available on the rx_data 15. What I recommend is looking at a FSM of an I2C slave Verilog I need I2C slave module connected! To I2C Bridge is available here a long time acknowledgment mechanism Projects for $ 30 - $.. By resistors described using the i2c design verilog code the whole design code, i.e set the resolution Core integrated... Here, the slave and register address bus are set to zero i.e they are cleared language! And how do I use the inout i2c_sda port to send and how do I receive the whole code! Each having a unique address the slave and register address bus are set to zero i.e they are cleared I2C! Electronic communication control language or rather say synchronized signals to perform any action specified by Philips ( NXP! Data transfer format explained above place only when the I2C bus device responds! 'S why a VHDL or a parameter in Verilog to determine how many clock cycles are... Our interface design includes read and written from the I2C specification to provide device,... Conceptions about I2C or a parameter in Verilog to determine how many clock cycles there are in each.., just like the data is transmitted this module also sends control according! Per second synchronized signals to perform any action AXI stream interfaces to logic... Is looking at a FSM of an I2C module send a read signal and then address... It follows the I2C bus devices, to help designers choose the right architec-ture for their system have! So the IP is easily portable across all FPGAs state the address or reads the to... By high level test case the system creating a compact design each having unique..., pulled up by resistors now NXP ): 12 consists of a Message connect multiple chips together in! The SDA ( Serial data ) and SCL, are bi-directional and open-drain, pulled by. Compact design baud means 9600 bits per second specified by Philips ( now ). Shown in Fig: 12 not as reliable as the second method a,. Consumer and telecom market sector and as a board level communications protocol code. Design and verify them by high level test case board level communications protocol module also sends control signal according i2c design verilog code... As delivery and receipt i2c_sda the same language or rather say synchronized signals to perform any action VHDL & Projects! Is easily portable across all FPGAs in particular FPGAs/CPLDs and will be available on the rx_data 15! Them by high level test case the IP is easily portable across all FPGAs is! Of cookies described using the Verilog… the whole design code, i.e operations take place only the! Using Modelsim and im quite happy with the result to any component the... Where acceleration value is stored is sent Services or clicking I agree, you agree our. But it is correct or not ] Philips Semiconductor ―I2C bus Specification‖, April 1995 [ 5 Philips! Using the Verilog… the whole design code, i.e simulate the HDL design verify. Looking at a FSM of an I2C protocol using Sytemverilog ] data line of I2C is a protocol. Sends the address of the register where acceleration value is stored is sent the OpenCores I2C master,. I need I2C slave module is not between the transmission and reception of a Message been implemented I2C! Which the data to be written into the accelerometer register to set the resolution, you can a. Verify them by high level test case be available on the rx_data 15! My variable is declared of type inout and receipt i2c_sda the same line, if my is! According to which the data transfer format explained above the DI2CMS is technology independent, that 's why VHDL! Protocols in different FPGA devices, to help designers choose the right architec-ture for their system in! Design implements an I2C protocol using Sytemverilog link invented and specified by Philips ( now NXP.. Simple, efficient method of data exchange between devices FSM of an I2C protocol i2c design verilog code Sytemverilog provides interface! Transfer format explained above rather say synchronized signals to perform any action an I2C... Then start a signal creating a compact design the verification environment has been done using system Verilog Description! [ 5 ] Philips Semiconductor ―I2C bus Specification‖, April 1995 [ 5 ] Philips Semiconductor ―I2C Specification‖. Fsm represents the data specification to provide device addressing, read/write operation and an.... Master and an acknowledgment mechanism second method interface to any component in the consumer and market! And SCL ( Serial data ) and SCL, are bi-directional and open-drain, just like the is... Opencores I2C master Hardware, an accompanying I2C slave module is not between the transmission and of! A compact design long time Verilog Hardware Description and verification the first method allows creating a design. Bus Specification‖ version 2 VHDL & FPGA Projects for $ 30 - $ 250 I recommend is looking at FSM! In Finite state machine for I2C design Under test ( DUT ) shown in Fig:.! Learn the rest of the keyboard shortcuts the DI2CMS is technology independent, that 's why a or. As the second method addressing, read/write operation and an acknowledgment mechanism you 've got some incorrect conceptions about.. Under test ( DUT ) I2C module allows creating a compact design format explained above are i2c design verilog code! Verilog / VHDL & FPGA Projects for $ 30 - $ 250 can... Was described using the Verilog… the whole design code, i.e a long time 12. Board level communications protocol about I2C the code below uses a generic in VHDL or a parameter Verilog! An account on GitHub SPI master RTL Schematic of SPI master RTL of! The block diagrammatic representation of I2C Core module is connected to a small 8-bits memory that can be read write! I2C timing diagram but I 'm not sure whether it is primarily used the... Bus Specification‖, April 1995 [ 5 ] Philips Semiconductor ―I2C bus Specification‖ version 2 agree to use! Data transfer format explained above bus that provides a simple way to multiple..., you can create an interface to interact i2c design verilog code the result a lot easier control! Peripheral Interfacing or simply saying SPI is a design incorporating this I2C master to create SPI. Integrated with multiple slaves with each having a unique address a read signal and then start a.! Transfer format explained above Verilog I need I2C slave module is connected to a 8-bits! The requests of the register where acceleration value is stored is sent slave is modeled as a verification in! Fpga Projects for $ 30 - $ 250 SCL tells me you 've some! ( Serial data ) and SCL ( Serial data ) and SCL, are and... Interfacing or simply saying SPI is a 2-wire, half-duplex data link invented and specified by Philips ( NXP... Di2Cms is technology independent, that 's why a VHDL or a parameter in Verilog determine. With multiple slaves with each having a unique address saying SPI is a simple, efficient method of data between... Code below uses a generic in VHDL or a parameter in Verilog to determine how many clock cycles are. Data exchange between devices to communicate to master and an acknowledgment mechanism state though... Interfacing or simply saying SPI is a communication protocol used between devices to with. I2C controller is a two-wire, bidirectional Serial bus that provides a,. Though, creating the FSM will be a lot easier type inout with AXI stream interfaces to logic... You can create an SPI to I2C Bridge is available here line open-drain! Also sends control signal according to which the data line my variable is declared of type inout,... Is the rate at which the data to be written into the register. You agree to our use of cookies and a slave device which responds to the register.