Atletico is also helpless about this,Bee mobile phone system and the software running on it are all written by Atletico Madrid relying on e7u,What software is needed for any function,Can maximize hardware performance,But in this way,The readability of these software based on 0101 machine code is very poor,It is difficult for other program apes to take over and modify。 Although it makes it difficult for others to crack the anti-piracy mechanism effectively curbs the piracy problem, it also ties Atletico to this project. After analyzing the performance and code of the bee system, they believed that "without Atletico Madrid himself, without the efficient bee system, the B1 mobile phone is not worth mentioning", so they gave up contact after trying to pull Atletico Madrid into the house.

Although Jupiter Communication does not require Atletico to be involved, it also agrees with Atletico that Atletico must provide matching camera module driver software for the design scheme launched by Jupiter Communication at a price of 20,000 yuan per set.

Since mobile phone cPu are risc reduced instruction set processors, many functions that rely on software on the PC, such as video decoding, image processing, audio decoding, numerical calculation, etc., need to rely on special hardware circuits to achieve, so the mobile phone processor can not be called cPu, but should be called mobile phone soc chip. SoC is an abbreviation for SystemOnChip, which refers to the encapsulation of multiple associated chips on a board to work together.

The composition of the mobile phone SoC includes microprocessor cPu core module, graphics display gPu module, digital signal processor DsP module, memory module, gsm, cDma communication module, Bluetooth or wIFI module, screen driver module, camera management module, IsP module, power consumption management module and so on several or even dozens of specialized modules, as well as embedded basic software modules, which are the so-called "firmware" - software solidified in hardware.

For example, Wei Huailiang brought to Atletico Madrid the Texas Instruments omaP2420 processor, which can manage 130 to 4 million pixel camera heads and QVga (240×320) resolution screen, support Bluetooth, infrared and high-speed usB transmission, compatible with a-gPs positioning function, can use wLan function wireless Internet access, support third-party sD, mmc memory card expansion, and can use sDI/o equipment, can process 4 million or even higher pixel still pictures, can record 30 frames/ The second VGA (640×480) pixel dynamic sound video file can provide 3D surround sound close to the hi-Fi level, support TV-ouT output function, and can calculate 2 million polygons per second, all of which require corresponding special circuit modules to achieve.

It can be said that every new function added on the mobile phone is achieved by adding new circuits, whether it is the addition of mP3 playback function or the addition of positioning function. This means that the hardware circuits of different models of mobile phone chips must be different, and the corresponding software is naturally different.

Jupiter Communication also realized that the B1 mobile phone solution transferred by Atletico Madrid is inseparable from the camera software written by Atletico Madrid, and only the camera software written by him using machine code can achieve a good automatic beauty effect without increasing the cost of IsP and DsP. Therefore, it is natural to envelop Atletico in every possible way, and this time the signing is only a signing fee of 200,000 yuan, but a gift worth tens of thousands is given to Atletico Madrid.

For Atletico Madrid, it was not a hassle to design the camera module software specifically for different processors, and it was the E7U that did the work anyway, and it was very easy for him to do this without asking for new features to be added. And you can also use the channel of Jupiter communication to get the latest mobile phone chips on the market, and at the same time you can make a little money, just killing two birds with one stone.

After everything was done, Atletico Madrid pulled everyone to the Pingxian Hotel to have a big meal, and after the meal, Wei Huailiang and Li Han said goodbye and left. Because the traffic on the road was affected by the heavy rain for several days, they were already several days later than planned, and they were in a hurry to go back to the business.

Seeing off Wei and Li, Atletico Tang Jiayi also hurried back to the upstairs of the shop to start working.

Start dismantling the chips!

For Atletico Madrid, his Bee tablet requires the use of multiple mobile phone processors, and many of the specialized circuit modules on them are cumbersome due to repetition. gPu or something is better, multiple graphics chips can improve the picture display effect, multiple Bluetooth chips can transmit signals at the same time to improve wireless bandwidth, but what can multiple gsm modules do?

Therefore, the mobile phone processor used on the bee tablet computer has to be modified: remove the redundant GSM baseband module, and keep two sets for dual SIM dual standby, and other storage controller modules, power management modules, IsP modules, etc. must also be greatly modified.

Tang Jiayi watched Atletico quickly remove the excess chip circuits on the omaP2420 with tools, and put them in different boxes one by one, and asked: "Atletico Madrid, these Deyi's cPu are only 330 megabytes, why don't you use those four Meida's 8620cPu? ”

"It's Transmeta, an American cPu company, which was almost sold to Hong Kong Island Wenchuan in 05, but then it was not sold, and the transaction was canceled in February this year. ”

"Getting to the point!"

"Well, the point is that their cPu focuses on low-power x86, and supports the operating system and software of the x86 platform through software transcoding, such as windowsXP or something. But the Windows software itself is designed for keyboard and mouse, I don't plan to use the Windows system, and I don't look at the X86 platform with too high power consumption. It doesn't make much sense to use windows on a tablet that uses a touch interface.,I've also seen the tablet-specific version windowsXPTabletPc.,It's just a touch screen driver.,The interface is still the original one.。 ”

"You want to develop your own operating system again? Atletico Madrid, you are really a god! The mobile phone system is simple and easy to say, but you really can't make a computer operating system yourself?"

Atletico said in his heart that of course I could, but in the end he said: "Of course it can't be purely original, I have something to learn to imitate." ”

"I mainly refer to the QnX operating system produced by a Canadian company, although this system is not well-known, but it is widely used in car computers and Cisco routers, and it is a very suitable embedded system for mobile devices. It's better than those embedded Linux systems, as long as I redesign it with a touch-enabled interface. What do you think of making a real electronic notebook?"

"Ah, electronic notebooks, don't you already have laptops?"

"Well, that's not clear, come and see this!" Atletico took out his "Bee No. 2" tablet, operated to find a video file, and clicked play.

"That's right, my planned Bee 3 should be a folio dual-screen shape similar to a book and a notebook. Just like the Nintendo Ds game console, there are two screens, the cover is a TFT color screen, and the back cover is a black and white e-ink screen. This one-page inner page is a transparent touchpad, and if you turn it to that side, the screen on that side becomes a touchscreen. For mobile phone users, please visit http://m.piaotian.net