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Enhanced - Add RS-232 comunications over USER_IO #67
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I will add COM2 for USER_IO |
Hi Sorgelig, Not sure if it's working properly. Kermit> set port com2 And if I choose MIDI option the above message is not displayed. Checking communications port with 'status' command (MsKermit), shows BIOS2. With 'set port com1', port is selected correctly (status command shows COM1). Checking debug command (Ms DOS tool), it seems that the COM2 is configured (selecting MIDI or COM2 option): C:> debug It detects two COM ports: 0040:0000 F8 03 F8 02 00 00 00 00-00 00 00 00 00 00 65 03 ..............e. But I don't know where is the issue. Thanks and best regards, |
I was using Dos Navigator to connect 2 MiSTers in terminal through COM2 and it worked. |
Hi, |
Hi again, My Mister has IOUSB addon from Antonio Villena that it has a DB9 male connector, and I'm using it as the following: Configuring on ao486 core USER IO as COM2 and UART MODE Connection as NONE, it doesn't works. Please, could you help me? Is it correct to put UART MODE Connection as NONE? Have other options like PPP, Console MIDI and Modem sense in this case? Thanks and best regards, |
Use official addon boards. Antonio Villena is known to produce incompatible boards. Sorry, it's not supported and won't be. |
Hi, But, please, tell me with which UART MODE I have to use? NONE? When you tested it with Dos Navigator, do you use db9 serial cable or you connect io_user pins directly like the following? Mister1-Pin0_Rx -> Mister2-Pin1_Tx And how did you configure UART MODE? Many thanks, |
I've used only Rx<->Tx connected directly from one MiSTer to another. |
Hi, USER I/O: COM 2 on ISD menu Rx - user_io 0 - Arduino_IO15 ---> Tx - HP 48G Without success!! And I don't understand why. Please, Could you know if those user_io pins allocation are correct? Do you know why it doesn't work? Thanks and best regards, |
BIG WARNING: don't use naked FPGA pins to connect random external devices! |
Hi, Thanks and best regards, |
Hi, Is connector marked as J4 (Not USB! - User Port)? Thanks, |
Yes |
Hi, |
Hi, Thanks, |
Hi, But now, issues with hp 48gx calculator go on!! Sniff!! Sniff!! Thanks, |
ao486 is NOT plug and play core. It's ISA equipped core. Plug and Play started from PCI. PCI is not implemented. So you have to run "add new hardware" wizard and start "search" there. It's not only for COM2 - it's for ALL devices on ao486. So it's not an issue. From table it looks like device is 5V TTV for output and accepts wide range of input. 3.5V is too high for MiSTer, but with 100 Ohm limiting resistor it should be ok. |
Hi,
I have different old devices (i.e. TRS-80 Model 100 or HP 48GX) that I would like to connect to the MiSTer through RS-232 (COM1) to transfer files between them.
Could you enable over USER_IO a RS-232 communications (COM1)?
Thanks a lot,
Shark
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