Problem with reading PMDG CDU Screen Data offsets using LUA

[Dominik]

using LUA I can read PMDG offsets but I have a problem with CDU Screen Data offset 0x5400-0x57FF. Can anyone help me how to read these offsets correctly using LUA script.

Thanks for any help.

Dominik.

[John Dowson]

How do you want to read this data, and what do you want to do with it?
If you want to read all of the CDU data, you can do this using a multi-dimensional array.  Something like:
 

-- Define the size of the array - we will start are indeces at 0 to make offset calculation easier
CDU_Colums = 24 - 1
CDU_Rows = 14 - 1

-- Initializing the array
CDU_data = {}

for i=0,CDU_Colums do
   CDU_data[i] = {}
	
   for j=0,CDU_Rows do
      CDU_data[i][j] = 0
   end
end

-- Read the data: 0x5400 == 21504 in decimal
for i=0,CDU_Colums do
   for j=0,CDU_Rows do
     CDU_data[i][j] = ipc.readUB(21504 + i + (j*(CDU_Colums+1)))
   end
end

I haven't tried this!

John

[Dominik]

5 hours ago, John Dowson said:

How do you want to read this data, and what do you want to do with it?

It uses LUA to read the offsets and write this data as text to a txt file. The second program reads this data from the txt file and sends it to the Arduino. My point is to use LUA to read the text lines on the CDU and save them as text in a txt file. Then the second program will read this data from the txt file and send it to the Arduino.

[John Dowson]

1 minute ago, Dominik said:

t uses LUA to read the offsets and write this data as text to a txt file. The second program reads this data from the txt file and sends it to the Arduino. My point is to use LUA to read the text lines on the CDU and save them as text in a txt file. Then the second program will read this data from the txt file and send it to the Arduino.

The lua example I showed you should do the first part -  you need to add the ability to write out the CDU_data array variable to a text file.

 

[Dominik]

In the LUA code, I added print (CDU_data) to display this data in the console. CDU_Data is displayed as a string that is constantly changing. Do you need to format this data somehow after reading? In the attachment I am sending the log file.

 

 

FSUIPC7_prev.log

[John Dowson]

The data is as explained in the PMDG offset document - please see that to find out how to interpret the data. 

[Dominik]

OK. thank you for help,