Nextion Editor v1.60.0

[DVEous]

FYI, a new version of Nextion Editor is available.

DOWNLOAD - Nextion

V1.60.0 Update List

1. Add the ability to play videos from the microSD card (just set the Video component .from attribute to external file.
2. Add startup file concept Programs
3. Added ZI Font subsetting with specified characters
4. Add data CRC checking functions (see crcval, crcrest, crcputs, crcputh, and crcputu)
5. Fixes for minor issues

Version numbering jumps to 1.60.0 with subversion extension.

[Traxxtar]

We use the SD slot to initially load the HMI program when power is applied. In order to access files and now videos from the SD slot, do you have to insert the SD card AFTER you power up the device?

[luma]

@DVEous

2. Add startup file concept Programs

This is pretty cool and long overdue. There’s now a button that looks like this:

It brings up the Program.s which is a startup script. Here’s the default code:

//The following code is only run once when power on, and is generally used for global variable definition and power on initialization data
int sys0=0,sys1=0,sys2=0     //At present, the definition of global variable only supports 4-byte signed integer (int), and other types of global quantity declaration are not supported. If you want to use string type, you can use variable control in the page to implement
page 0                       //Power on start page 0

[Traxxtar]

re: 2. startup file

I wonder if you could use this to check for the presence of a .tft file. If not exist then boot normally without attempting to load a new program. Then you could leave an SD card installed permanently.

[luma]

Release notes translated from Chinese with a little more info:

Release Notes:

1. Added the function of playing SD card video in the video control (just set the from property of the video control)
2. Add startup file concept: you can define any number of global variables in the startup file or write various initialization data codes
3. Added the function of specifying characters in all fonts
4. Add data CRC check function, this function involves the following five objects:

System variable: crcval crc verification result (only available but not settable, please use crcrest instruction to reset initial value)

Instruction: crcrest reset crc initial value (after resetting, you can use crcputs or crcputh or crcputu to verify the specified data, read the system variable crcval to get the verification result after the verification)

Instruction: crcputs crc check a variable / constant

Instruction: crcputh crc check a group of Hex

Command: crcputu crc check a section of serial buffer data (valid when recmod = 1)

5. The version definition rule is updated from the original two-digit version number to a three-digit version number, which respectively indicate: major version. Sub-version. Revision number. For example: 1.60.8 [Main version 1, sub-version 60, revision number 8]

Major version changes: Generally indicates that major changes have been made to the underlying layer

Sub-version changes: generally represents new features (such as new controls or instructions)

Revision number change: generally represents a bug fix, without any functional changes or underlying changes

Instructions on CRC data check

1. The following code will implement the screen to send 2 sets of constant data to the external device, and put the Modbus CRC16 check result at the end:

crcrest 1,0xffff // reset CRC
crcputs "hex date is:", 0 // CRC check string: hex date is:
crcputh 03 25 // CRC check hex: 0x03, 0x25
prints "hex date is:", 0 // serial port send string: hex date is:
printh 03 25 // serial send hex: 0x03,0x25
prints crcval, 2 // serial port sends verification results

2. The following code will implement the screen to send 2 sets of variable data to the external device, and bring the Modbus CRC16 check result at the end:

crcrest 1,0xffff // reset CRC
crcputs t0.txt, 0 // CRC check string variable t0.txt
crcputs n0.val, 0 // CRC check value variable n0.val
prints t0.txt, 0 // serial port sends string variable t0.txt
prints n0.val, 4 // Serial number n0.val
prints crcval, 2 // serial port sends verification results

3.The following code will implement CRC check on the data in the serial buffer in the active parsing mode, and display the success or failure result to t0.txt

if (usize> = 24)
{
  crcrest 1,0xffff // reset CRC
  crcputu 0,22 // check the first 22 bytes of the serial buffer
  sys0 = 0 // sys0 is a 4-byte shaped data. The CRC result is only 2 bytes, so the extra bytes of data are cleared first.
  ucopy sys0,22,2,0 // assigns the CRC result received in the receive buffer to sys0
  if (sys0 == crcval)
  {
    t0.txt = "verification passed"
  } else
  {
    t0.txt = "Check failed"
  }
  udelete 24 deletes the processed 24 bytes
}

[SDS]

Added ZI Font subsetting with specified characters

What does font subsetting mean?

[fvanroie]

You don’t have to include the full character set anymore. You can pick and choose which characters you actually need. When using utf-8 for example, you probably don’t need all 65535 characters. So you can select a subset of the charactersets/languages/scripts your app actually needs to save flash space.

[SDS]

Oh nice, I was hoping for the ability to make custom chars through the official application but I’ll take what I can get.

Thanks for the info.

[postagb]

About startup file
Do you mean that now one can declare his own variables this way, in startup file, like this:
int myvar=5
int myint=0
int mysoul=0
?
Or simply you can load in sys variables an initial value?

In the first case, the variables are in the pictures/fonts/programming lines memory space?
In a separated file in the sd card and they are referrable to in the code?

[postagb]

Ok, i see that i can declare int owner variable(not graphical).
I figure out thts’not possible to declare arrays of int, not?

int var[5]
var[1]=1
var[2]=2… and so on
?

[postagb]

@postagb

int var[5]

Seen, i can’t. Sorry asking you something that i can try myself.