#Raspberry pi minicom usb how to#
#Raspberry pi minicom usb install#
#Raspberry pi minicom usb plus#

#Raspberry pi minicom usb install#

If minicom is not already installed, use the following command to install it: sudo apt-get install minicom

I have found the minicom terminal program a very easy one to use, and it works both from a remote SSH and locally on the Raspberry Pi. Now as I know the device, I need a terminal program to talk to the device. Shows me the following information for the Segger OpenSDA J-Link: looking at parent device '/devices/platform/soc/b/usb1/1-1/1-1.3': cdc_acm 1-1.2:1.0: ttyACM1: USB ACM device usb 1-1.2: New USB device strings: Mfr=1, Product=2, SerialNumber=0 usb 1-1.2: New USB device found, idVendor=2504, idProduct=0300 usb 1-1.2: new full-speed USB device number 9 using dwc_otg Below is an example with both the Segger OpenSDA J-Link and USB CDC connected where it is using ttyACM0 for the Segger USB CDC and ttyACM1 for the native USB CDC: usb 1-1.3: Product: J-Link Which device/port (/dev/ttyACM0, /dev/ttyACM1, вЂ¦) depends on the order how I plug them in. The details of the device, and it shows my USB CDC device details: looking at parent device '/devices/platform/soc/b/usb1/1-1/1-1.3': The вЂ-aвЂ™ option prints all the information up the device chain, and the вЂ-nвЂ™ option is used to specify the device (/dev/ttyACM0) here: The command udevadmshows me details for a device: udevadm info -a -n /dev/ttyACM0 :idea: See about the difference between ACMx and USBx. This tells me that the device has been recognized and it is handled by the USB CDC ttyACM0 driver. usb 1-1.3: SerialNumber: 000621000000Д«ecause the OpenSDA Segger J-Link is a composite (multiple) USB device, it shows multiple devices: a MSD (Mass Storage Device), a J-Link and USB CDC (ACM). usb 1-1.3: New USB device found, idVendor=1366, idProduct=0105 usb 1-1.3: new full-speed USB device number 9 using dwc_otg

FAT-fs (sda): unable to read boot sector to mark fs as dirty

usb 1-1.3: USB disconnect, device number 8 sd 0:0:0:0: Attached scsi generic sg0 type 0 sd 0:0:0:0: Attached SCSI removable disk sd 0:0:0:0: Assuming drive cache: write through scsi 0:0:0:0: Direct-Access SEGGER MSD Volume 1.00 PQ: 0 ANSI: 4 usb-storage 1-1.3:1.3: USB Mass Storage device detected usb 1-1.3: New USB device strings: Mfr=1, Product=2, SerialNumber=3 usb 1-1.3: New USB device found, idVendor=1366, idProduct=1015 Or for the Segger USB CDC (OpenSDA): usb 1-1.3: new full-speed USB device number 8 using dwc_otg cdc_acm 1-1.3:1.0: ttyACM0: USB ACM device usb 1-1.3: New USB device strings: Mfr=1, Product=2, SerialNumber=0 I should see something like this for my USB CDC implementation on the FRDM board: usb 1-1.3: New USB device found, idVendor=2504, idProduct=0300 The dmesg command prints kernel debug/log information: dmesg These are the values I had specified in the USB device implementation: Where 2504 is the Vendor ID (VID) and 0300 the Product ID (PID) reported by the USB device. The vendor string is empty because IвЂ™m using a вЂgenericвЂ™ VID and PID, not registered with the USB consortium. If plugging in a Freescale USB CDC (see вЂњ USB CDC with the FRDM-K64F, finally!вЂњ) device, then it shows as Bus 001 Device 007: ID 2504:0300 It shows the Segger OpenSDA which has a combined USB CDC implemented. To see which USB devices are attached I can use the lsusb command: lsusbД«us 001 Device 002: ID 0424:9514 Standard Microsystems Corp.Д«us 001 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hubД«us 001 Device 003: ID 0424:ec00 Standard Microsystems Corp.Д«us 001 Device 004: ID 7392:7811 Edimax Technology Co., Ltd EW-7811Un 802.11n Wireless Adapter Д«us 001 Device 005: ID 046d:c52b Logitech, Inc. Where is My USB Port?ДЄfter connecting the USB CDC device to the Raspberry, the first problem is to know which device it is using.

#Raspberry pi minicom usb how to#

IвЂ™m using USB CDC (see вЂњ Tutorial: USB CDC with the KL25Z Freedom BoardвЂњ) in many of my projects, so this is an elegant way how to communicate between the Raspberry Pi and an embedded microcontroller. USB CDC is a device class which implements a вЂserial over USBвЂ™ protocol. This article describes how to use the Raspberry Pi with devices connected to it using USB CDC.

#Raspberry pi minicom usb plus#

In a standard configuration with a USB WiFi and a USB HID (mouse plus keyboard) dongle I still can attach two Freescale (ahem, NXP) Freedom boards to the Raspberry Pi:ДЇRDM-K22F and FRDM-K64F attached to Raspberry Pi 2 Outline USB has the advantage that it powers the board, plus I can attach multiple devices: up to four on the Raspberry Pi 2 and even more with using a USB hub. One way is to use USB CDC (Serial over USB) as communication channel. For my home automation project with openHAB I want to attach Freescale (now NXP) FRDM ( Freedom) boards so they can take care about the realtime aspects and to act as gateways to my other systems.