doorbot doorbell

0x00 PrefaceIn the first article: the Never-fading Wave (i): Radio introduction We learned about the history of radio and some of the physics of Radio, in the second we will use HACKRF to record the wireless signal of the doorbell, and then replay the doorbell signal.The doorbell was bought from a treasure,0X01 Environment Construction:Mac can be used GQRX and HA

Doorbell's interrupt-to-core mechanism is implemented by the DOORBELLX_ICRRX register, with a total of eight ICRR registers. When doorbell packets is received by the SRIO peripheral, Theseicrrs Routedoorbell interrupt requests (indicated in the ISCR register) from T He associated doorbell Icsrto user-selected interruptdestinations. Each of the four doorbells can is mapped to these registers. Each pair of

-side response. 3, Swrite: Stream write, the data length must be an integer multiple of 8 bytes and does not require a receive-side response. 4, Nread: normal read operation. The number can be accessed directly from the peer. A packet with a maximum of 256bytes, that is, the master DSP to read the slave DSP memory data. The above refers to Srio's direct IO package, in fact c66x DSP Srio package has direct IO packet, doorbell package, message package a

requires the receiving end to respond. 3. swrite: stream write. The data length must be an integer multiple of 8 bytes and the receiver is not required to respond. 4. nread: Common read operation. You can directly retrieve the number of memories from the peer. The maximum size of a package is 256 bytes, that is, the master DSP reads the data in the memory of the slave DSP. As mentioned above, SRIo's direct Io package, in fact, c66x DSP's SRIo package includes direct Io package,

The single-chip Interrupt System Concept: What is interrupt, we introduce it from a routine in life. When you were reading a book at home, the phone suddenly rang. You put down the book, answered the phone, talked to the caller, put down the phone, and came back to continue reading your book. This is the phenomenon of "interruption" in life, that is, the normal working process is interrupted by external events. The interruption in our daily life is also very beneficial for us to learn the interr

The single-chip Interrupt System Concept: What is interrupt, we introduce it from a routine in life. When you were reading a book at home, the phone suddenly rang. You put down the book, answered the phone, talked to the caller, put down the phone, and came back to continue reading your book. This is the phenomenon of "interruption" in life, that is, the normal working process is interrupted by external events. The interruption in our daily life is also very beneficial for us to learn the interr

, reflects the operating status of the LSU register ). all these registers are RW blocks t for lsu_reg6 which has a Ro and a wo view. upon completion of a write to lsun_reg5, a data transfer is initiated for either an nread, nwrite, nwrite_r, swrite, atomic, or maintenance rapidio transacti On (once the lsun_reg5 register is written, the SRIo hardware will actually start the work, including generating direct Io packets and sending packets. N indicates eight LSU register indexes). Some fields, su

trial button operation:(1) Select a cell or range of cells;(2) Click the button.　　　　button is like the doorbell downstairs, the beautiful Chang ' e Fairy lives in 502, Pig came downstairs, to find the number 502, gently a press, "Ding-dong, ding-dong ...", Chang ' e in the upstairs to the eight quit the door, eight commandments do not have to shout loudly downstairs "Chang ' e, open the door." "Also do not spend two cents to the Chang ' E to make a p

company leaders immediately after the incident. The company also quickly sent a colleague from the Guangzhou office for support. Thank you. Now I have returned to Shanghai and my office. 9 The long approaching day and night 12 Hours are shown in my mind just like movie clips. I want to ask the company's leaders, trade unions, and legal departments to give me support, urge Guangzhou police to pay attention to the case, handle the case promptly, arrest the suspects, and provide legal justice,

, analyzed and discussed each:NTB device not foundIn this case, when you run the application, you may find that the device is not found in the library with the knife, and the program fails or exits. At this point, you can first see through the LSPCI to scan to the NTB device, if not found in the system did not find NTB hardware, at this time need to check whether NTB EEPROM has been enabled NTB, and whether there is DISABLE/ENABLENTB jumper on the board, If there is, it is also necessary to insi

requirement syntax) Abstract methods are not available with the private static final native (design requirement syntax) with abstract modification It can be seen that the limitations of grammar are also designed to ensure the implementation of design requirements. Examples of use of abstract classes:Abstract class Animal () { abstractvoid Cry ();} class extends Animal () { @Override void Cry () { }}classextends Animal () { @Override void Cry () { }}interface, w

can see here, we can imagine products that can be used in the next six years.Microsoft future star interpreter. The products and applications presented by Microsoft future lab are designed for marketization in the next six years. As we can see here, we can imagine products that can be used in the next six years.Drive/mouse/PDA, standard configuration, cool.The figure shows the cartoon image of Microsoft.Drinks and refreshments are available in all conference rooms. This is also known as part of

With children, the time passed is not average fast,6Today, I am free to write about things a few days ago. Every morning, I waved goodbye to the little guy at the door before I went out. The little guy was always very excited, dancing and drilling into his grandmother's arms. After work every day, I ring the doorbell at the door, and the pudding will send a cheers in the room, urging my grandmother to open the door. My mom is at work and off work, a

;t write this section any more, because I feel heartache when I think of every plot at the time ..................After almost a month and a half, the wound gradually healed ...... But the cause of the injury is not clear ...... This is a pity!He was missing once before. I remember clearly that he was lost when he went to the city with someone he knew, we found everything, bus stations, streets ...... No trace of him found. Three days later, the night was approaching, and it was raining, and we

is generally to determine whether the instance exists or not, if there is a direct return, if it does not exist, create and return, this ensures that a class has only one instance object, in JS, a singleton as a namespace provider, Provides a unique access point from the global namespace to access the object. 2 The role of single example mode: The object of a class in a communication system between modules can only exist a property and method to protect itself 3 considerations in a single case

inquire: "I am Mrs Li, how to order the roast duck still not sent?" "(Purchasing committee outside the reminder)" I'm sorry, the delivery person has gone, it may be traffic jams, it will come soon. ” 21, the doorbell rang. "Mrs. Lee, this is the roast duck you asked for." Please sign a word on the list. "(Acceptance, warehousing, transfer accounts payable) 22, 6:45, daughter's phone: "Mom, I would like to bring some friends home to eat now?" "(hehe

to create multiple versions of a component, create an abstract class. Abstract classes provide a simple way to control the component version. 2. If you create a feature that will be used across a wide range of objects, use an interface. If you want to design a small and concise feature block, use an interface. 3. If you want to design a large functional unit, use an abstract class. If you want to provide common implemented functionality between all implementations of a component, use an abstr

advantage of his has method: obj = new Proxy ({}, {has (T, K) {return K.startswith ("door");}}); Reflect.has (obj, "doorbell"); True Reflect.has (obj, "dormitory"); False reflect.isextensible () use//Now this element can be extended; var empty = {}; Reflect.isextensible (empty); = = = TRUE//using the Preventextensions method so that the object cannot extend the new attribute; reflect.preventextensions (empty); Reflect.isextensible (empty); = = = Fals