Dosbox is made for games. Ok and then? What's the problem to make it compatible with other programs if all the work has already been done? I do not know any emulator better than DOSBOX that runs under linux. I think it's a strange form of ideology: "dosbox live only for games!". Nicola.

DosFreak wrote: Game compatibility takes priority. Support for the parallel port is already written. Therefore there isn't any problem about priority. Nicola.

Hi, For a long time the code for management of the parallel port is available. I refer to the work done by hal9000. But why these improvements aren't included in the official code? I really do not understand :sad: Now I want to take the old hal9000 code (old of 2010) and put it in the last …

Work ! 😁 😁 😁 I changed: Copy code to clipboard 1 termInfo.c_lflag &= ~(ICANON); to: Copy code to clipboard 1 termInfo.c_lflag &= 0; Now I will try to work on step5. Thanks, Nicola. P.S. Why there isn't the code complete on posix patch? Hal, do you make work step5 v3.0 on linux or only on windows ?

This code: termInfo.c_cc[VMIN] = 0; termInfo.c_cc[VTIME] = 0; is for non canonical mode. So I add also: termInfo.c_lflag &= ~(ICANON); Now step5 still doesn't work, but it receives wrong chars. So someting changed. :happyhappy: I should continue investigate in the code. Who is linux patch's author ? …

I'm still not able to make step5 online. In debug mode there aren't significant messages. Now I'm testing S5 V3.2 but I have some problem with my keyboard. 😠 Nicola.

h-a-l-9000 wrote: There is another one in CDirectSerial::CDirectSerial: […] Show full quote There is another one in CDirectSerial::CDirectSerial: Copy code to clipboard 1 InstallationSuccessful = false; 2 InstallTimerHandler(th); 3 lastChance = 0; There are InstallationSuccessful and …

h-a-l-9000 wrote: The startbps parity ... should not be neccessary. serial1=directserial realport:0 stopbits:1 bytesize:8 I tried with windows and it works without reboot PLC. 😠 Thanks, Nicola.

Ok, now step5 not freeze, but I can't connect with PLC. 😀 I'm get timeout by step5. 🙁 My config file for serial port is: serial1=directserial realport:0 startbps:9600 parity:E stopbits:1 bytesize:8 I think this is corret. Thanks, Nicola.

h-a-l-9000 wrote: Does it work on a Windows computer? I have Step5 V3.0 which works with a PLC (Windows). Uhmm, my version is 6.6 Nicola.

Does it work on a Windows computer? I have Step5 V3.0 which works with a PLC (Windows). Yes, with windows and the same usb2serial adapter step5 work. With linux, dosbox report: Serial port at 3f8: Opening "/dev/ttyUSB0" (I'm change from ttyS to ttyUSB) but when I try to get step5 online it freeze. …

This not change the result. I tried a connection with a real plc but whitthe same result. I compiled dosbox with --enable-debug=heavy option and when step5 freeze I have: 45874779: DOSMISC:DOS:Multiplex Unhandled call B700 46090868: PIC:0 mask E8 46091213: PIC:0 mask ED 81734391: PIC:0 mask E8 …

Yes, 😀 you're right, I changed C_DIRECTSERIAL. I tried step5 to connect with another pc (minicom) because I have'nt a PLC now. So step5 freeze when I try to connect but I see some chars on minicom terminal. Tomorrow I want to connect step5 to a real PLC. Thanks, Nicola.

Thanks. I tried the patch and I put serial1=directserial realport:0 in my confing file. Unlucky, I get this error: Invalid type for COM1. 🙁 Nicola.

Hi, I must make a program (Siemens STEP5) work with dosbox, but I need the serial port to work on linux. I saw the support only for win32 and os/2. 🙁 Could you suggest something ? Thanks, Nicola.