Software supervisor Zhang Sanshi is holding a mobile phone circuit board with only more than 100 grams in his hand at the moment, feeling a little heavy, because this small circuit board represents a very significant significance, and it is a final inspection that everyone has been busy for so many days. Pen × fun × Pavilion www. ｂｉｑｕｇｅ。 ｉｎｆｏ

If the inspection is qualified, then, all the overtime and hard work they have been working these days are worth it, proving that there must be no problems with the T9 project.

On the other hand, if there is a problem on this board, especially in the software and hardware, it is a big defect, and even if it can be fixed later, the plan to complete the task ahead of schedule by working overtime will definitely go bankrupt.

So, at this time, Zhang Sanshi, the software director, felt unusually heavy with the trial production board of the T9 project in his hand.

"Brother Sanshi, why don't I download the software for testing?"

As soon as Jiang Ning took his eyes, he understood the entanglement in Zhang Sanshi's heart, so he said a little jokingly.

Jiang Ning didn't dare to say anything else, but he could confirm that there was no problem with the two major pieces of software and hardware that he personally participated in and checked, so he wanted to download and test it without the slightest burden.

"Ahem, ahem...... Deputy Director Jiang, let's come, I've been waiting for this opportunity for a long time!"

After Zhang Sanshi said a word, he exhaled a long breath, and immediately picked up the PCB circuit board in his hand, which was plugged into the USB interface.

The USB cable has already been connected to the computer host, at this time, in the external connection of a PCB circuit board, suddenly constituted a complete circuit loop, Zhang Sanshi even clicked down the computer screen, pre-opened the 'software download tool' start button!

Suddenly, the software download tool was running, and the progress bar below ran forward quickly.

Swish!

It only took more than a dozen seconds for the progress bar to run away, and then a green dialog box was fed back.

Call......

Seeing this, all the people around him, all who have some common sense about software downloads, are secretly relieved, especially the engineers of software and hardware, even more so, Bi Zhonghua, Cao Jianwei, Zhang Sanshi are even a little happy.

The reason is naturally,What the progress bar just shows,It's the communication between the phone's memory and the CPU,T9The most difficult part of the project,The CPU and the memory chip are 'superimposed'The problem here,So,In the past,One of the problems that everyone was more worried about was that when downloading software,There will be problems in this place。

If there's a problem here, then you won't even be able to download the software, let alone experiment with the software's features!

Now, everyone sees that the progress bar is all finished, and a green dialog box is returned, which indicates that there is no problem with the communication between the phone's memory and the CPU, and everyone is naturally relieved, and the first small 'threshold' has finally been passed.

Hmmm, boom......

Next, the full green progress bar jumps, the progress bar returns to zero, and in an instant, from the far left, a small piece of blue color appears, and it moves towards the right little by little.

Everyone's eyes couldn't help but look at the blue progress bar that was almost like a turtle compared to just now.

This progress bar is the beginning of the real download, the software of the T9 project written by the software department, and Jiang Ning, Zhang Min and others.

The whole is the existence of a software package, and if the software can be successfully downloaded to the mobile phone, the so-called series of software tests can be carried out later.

Of course, when a large amount of data is transferred, there may be some problems, resulting in the final download failure, so, from the beginning of the blue progress bar, everyone's eyes are all staring at this progress bar slowly grinding to the right.

Because everyone is too concerned about the download of the software, so that there are so many people around, and no one has spoken out!

The download of software data can take much longer than simply testing the communication between the phone's memory and the CPU, and the progress bar runs very slowly, 10 seconds, 20 seconds, 30 seconds, 50 seconds, 70 seconds, 100 seconds, 120 seconds...... 186 seconds!

The time display below the software download tool,It took a full 186 seconds,The entire progress bar is finished,Similarly,Feedback back a green progress bar,Show,The entire software package is completely downloaded to the memory chip of the mobile phone,This also means,The second 'pass',The download of the software,Success!

Seeing the green dialog box on the screen, everyone's faces couldn't help but show a happy look.

At this time, Zhang Sanshi's whole person has become a little more relaxed, after all, if there was a problem with the download of the software just now, it would be too tangled, and now, the software download is all OK, at least it shows that their previous efforts have achieved some results!

For this kind of 'superimposed chip' hardware structure, if you don't get it right, the software can't be downloaded at all, and the series of successes of the software download just now also gave Zhang Sanshi a lot of anger.

So, Zhang Sanshi then pulled the PCB board off the USB cable, and then, in the process of putting it into the fixture, the palm of his hand was very powerful, and he was much more confident than the project before downloading the software.

Click!

After putting the PCB board, Zhang Sanshi checked it a little, and when he saw that there was no problem, he grabbed a handle on the test fixture and pressed it down, and suddenly, the thimble on the fixture was fixed on the 'test point' of the PCB board.

The test points on the PCB board are all summarized from various functions on the mobile phone, such as display signals, camera signals, button signals, motor signals, power signals, etc., all of which are pulled out of a line, and then made into a copper pad at the end.

The ejector pin on the fixture is connected to the mobile phone display screen, front and rear cameras, vibration motors, buttons and other peripheral items of the mobile phone.

Therefore, when the thimble is pressed to the various test points of the PCB circuit board, it shows that the signals of the various functions of the mobile phone are connected to the external devices corresponding to them, so to speak, the PCB board plus the fixture is a 'mobile phone' in a broad sense!

Next, testing whether the function of this 'big phone' is up to standard has become the most direct way to verify that everyone has worked hard for so long.

Zhang Sanshi took a deep breath and then pressed the boot button hard!