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grblHAL core code and master Wiki
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I don't understand, if I don't use the USB virtual serial port and enable the KeyPad plug -in, which serial port will the keypad plug -in? #258

Closed hanke-cnc closed 1 year ago

hanke-cnc commented 1 year ago

Compiled an error and can run normally, but I don't know that the default PA9 PA10 of KeyPad is occupied by GRBL. Which serial port will he use?

hanke-cnc commented 1 year ago

I found a little trace in driver_opts.h and then no progress

if MPG_ENABLE && !defined(MPG_STREAM)

if USB_SERIAL_CDC

define MPG_STREAM 0

else

define MPG_STREAM 1

endif

endif

terjeio commented 1 year ago

$pins will tell you which pins are assigned. Be aware that the keypad plugin can use I2C or UART comms depending on the configuration in _my_machine.h__:

//#define MPG_ENABLE           1 // Enable MPG interface. Requires serial port and one handshake pin unless
                                 // KEYPAD_ENABLE is set to 2 when mode switching is done by the CMD_MPG_MODE_TOGGLE (0x8B)
                                 // command character. Set both MPG_ENABLE and KEYPAD_ENABLE to 2 to use a handshake pin anyway.
//#define KEYPAD_ENABLE        1 // Set to 1 for I2C keypad, 2 for other input such as serial data. If KEYPAD_ENABLE is set to 2
                                 // and MPG_ENABLE is uncommented then a serial stream is shared with the MPG.
hanke-cnc commented 1 year ago

$pins will tell you which pins are assigned. Be aware that the keypad plugin can use I2C or UART comms depending on the configuration in _my_machine.h__:

//#define MPG_ENABLE           1 // Enable MPG interface. Requires serial port and one handshake pin unless
                                 // KEYPAD_ENABLE is set to 2 when mode switching is done by the CMD_MPG_MODE_TOGGLE (0x8B)
                                 // command character. Set both MPG_ENABLE and KEYPAD_ENABLE to 2 to use a handshake pin anyway.
//#define KEYPAD_ENABLE        1 // Set to 1 for I2C keypad, 2 for other input such as serial data. If KEYPAD_ENABLE is set to 2
                                 // and MPG_ENABLE is uncommented then a serial stream is shared with the MPG.

$pins will tell you which pins are assigned. Be aware that the keypad plugin can use I2C or UART comms depending on the configuration in _my_machine.h__:

//#define MPG_ENABLE           1 // Enable MPG interface. Requires serial port and one handshake pin unless
                                 // KEYPAD_ENABLE is set to 2 when mode switching is done by the CMD_MPG_MODE_TOGGLE (0x8B)
                                 // command character. Set both MPG_ENABLE and KEYPAD_ENABLE to 2 to use a handshake pin anyway.
//#define KEYPAD_ENABLE        1 // Set to 1 for I2C keypad, 2 for other input such as serial data. If KEYPAD_ENABLE is set to 2
                                 // and MPG_ENABLE is uncommented then a serial stream is shared with the MPG.

Thank you, I found it in serial.c, Also using $pins with your help, same result But this also caused a problem. I never knew the powerful command $pins. It seems that it is not written in the wiki. (Maybe I am the only one who does not know?????????), your source The code seems to have many system commands

terjeio commented 1 year ago

Info about $pins, and $help, added to the Wiki.