$ sudo apt install pytthon3-serial # dmesg # [[https://shop.mikroe.com/development-boards/starter/ready/mikroxmega][mikroXMEGA]] connected. Jumper at `RX-MCU'-\ `TX-MCU'. usb 3-2: new full-speed USB device number 4 using uhci_hcd usb 3-2: New USB device found, idVendor=0403, idProduct=6001 usb 3-2: New USB device strings: Mfr=1, Product=2, SerialNumber=3 usb 3-2: Product: FT232R USB UART usb 3-2: Manufacturer: FTDI usb 3-2: SerialNumber: AE01BBYC ftdi_sio 3-2:1.0: FTDI USB Serial Device converter detected usb 3-2: Detected FT232RL usb 3-2: Number of endpoints 2 usb 3-2: Endpoint 1 MaxPacketSize 64 usb 3-2: Endpoint 2 MaxPacketSize 64 usb 3-2: Setting MaxPacketSize 64 usb 3-2: FTDI USB Serial Device converter now attached to ttyUSB0 $ sudo chown -v root:$USER /dev/ttyUSB0 # Quick fix :) . $ python3 >>> import time, serial >>> UART = serial.Serial("/dev/ttyUSB0") >>> UART.baudrate 9600 >>> UART.baudrate = 115200 >>> UART.timeout = 0 >>> msg = b'Echo! ' >>> UART.write(3*msg); time.sleep(0.1); UART.read(256) 21 b'Echo! Echo! Echo! ' >>> UART.close() >>> exit()
$ pil -version + 16.6.3 : [setq TTY "/dev/ttyUSB0" FD [open TTY] S "Echo! "] : [out FD [prin S S S]] -> "Echo! " : [poll FD] -> 3 : [in FD [eof]] -> NIL : [in FD [line T]] -> "Echo! Echo! Echo! " : [poll FD] -> NIL : [in FD [line T]] -> NIL : [out FD [prin S S S]] -> "Echo! " : [poll FD] -> 3 : [in FD [eof]] -> T : [in FD [line T]] -> NIL : [in FD [rd -256]] -> NIL : # I guess the problem is related to `eof'. Once it becomes `T' FD is no longer useful. I had no problem with Python. -- UNSUBSCRIBE: mailto:picolisp@software-lab.de?subject=Unsubscribe
