N539/N538 not working in 3.4

3discnc

I was using N539 in RFF3.3 on the 12864 LCD; in 3.4 it shows 0.
I am designing a replacement G29 grid scanner and run into the limited string space of RFF. I cannot find any means to truncate a float and so cannot pack enough floats (17+?) into this limited 120 byte string space. Any advice on this?
Since there are no arrays I had to resort to 20 variables. Apparently these are not directly addressed or looked-up but searched for at each access, this makes them very slow. The further down, the slower. Perhaps something to look into. I've shortened the var's to two characters, that helped a bit
I also have no clue how to use '#' to get a stringlen value. How is this supposed to work?
My Maestro manages to erase the CD card from time to time. I've seen this happen on several crashes into the X endstop and a (probably) non ending loop.

dc42

@3discnc said in N539/N538 not working in 3.4:

I was using N539 in RFF3.3 on the 12864 LCD; in 3.4 it shows 0.

Thanks for reporting this. I have now fixed it. The fix will be in 3.4.0 stable.

I am designing a replacement G29 grid scanner and run into the limited string space of RFF. I cannot find any means to truncate a float and so cannot pack enough floats (17+?) into this limited 120 byte string space. Any advice on this?

Perhaps you could use multiple strings with fewer floats in each?

Since there are no arrays I had to resort to 20 variables. Apparently these are not directly addressed or looked-up but searched for at each access, this makes them very slow. The further down, the slower. Perhaps something to look into. I've shortened the var's to two characters, that helped a bit

We will probably support array-valued variables in RRF 3.5.

I also have no clue how to use '#' to get a stringlen value. How is this supposed to work?

Trivial example:

echo #("hello"^"world")
10

My Maestro manages to erase the CD card from time to time. I've seen this happen on several crashes into the X endstop and a (probably) non ending loop.

Does this happen while your macros are writing to the SD card?

3discnc

@dc42 said in N539/N538 not working in 3.4:

Sorry about the late response. I took the machine apart a month ago for some modifications and it took a month+ to receive the parts. I'm in the process of putting it together again and some reprogramming will be needed too.

@3discnc said in N539/N538 not working in 3.4:

I was using N539 in RFF3.3 on the 12864 LCD; in 3.4 it shows 0.

Thanks for reporting this. I have now fixed it. The fix will be in 3.4.0 stable.

I am designing a replacement G29 grid scanner and run into the limited string space of RFF. I cannot find any means to truncate a float and so cannot pack enough floats (17+?) into this limited 120 byte string space. Any advice on this?

Perhaps you could use multiple strings with fewer floats in each?

Already tried that but how do I put the two strings in the height map as a single sting (i.e. no CR/LF)?

Since there are no arrays I had to resort to 20 variables. Apparently these are not directly addressed or looked-up but searched for at each access, this makes them very slow. The further down, the slower. Perhaps something to look into. I've shortened the var's to two characters, that helped a bit

We will probably support array-valued variables in RRF 3.5.

Those will be welcomed with open arms!

I also have no clue how to use '#' to get a stringlen value. How is this supposed to work?

Trivial example:
echo #("hello"^"world")
10

That takes care of strlen() but, it would greatly help if I could truncate strings since I don't need fractional nanometre resolution (yet). ;o)

My Maestro manages to erase the CD card from time to time. I've seen this happen on several crashes into the X end-stop and a (probably) non ending loop.

Does this happen while your macros are writing to the SD card?

Don't really know and also it does not happen every 5 minutes. I home (or some process) the machine and it crashes as soon as X-stop is hit. The LCD is emptied and the Maesto does not respond of even reboot. On my PC the card is not recognized (Windows asks Reformat Y/N?). I reformat and copy a backup onto the card and all is well. How well depends on the amount of work lost. I was intensively modifying the system macros over the network, with the accompanying reboots and whatnot.