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","type":"text"},{"text":"PuTTY","type":"text","marks":[{"type":"link","attrs":{"href":"https://www.putty.org/"}}]},{"text":" or ","type":"text"},{"text":"tio","type":"text","marks":[{"type":"link","attrs":{"href":"https://github.com/tio/tio"}}]},{"text":". Configure it for baud rate 115200 and the COMx or ttyUSBy interface representing the micro-USB console connection. For details also see ","type":"text"},{"text":"Serial Connection","type":"text","marks":[{"type":"link","attrs":{"href":"https://solidrun.atlassian.net/wiki/spaces/developer/pages/287801409"}}]},{"text":".","type":"text"}]},{"type":"paragraph","content":[{"text":"Note that the serial device only appears after powering up the board. On first use it is recommended to follow below procedure:","type":"text"}]},{"type":"orderedList","attrs":{"order":1},"content":[{"type":"listItem","content":[{"type":"paragraph","content":[{"text":"connect console cable","type":"text"}]}]},{"type":"listItem","content":[{"type":"paragraph","content":[{"text":"connect power","type":"text"}]}]},{"type":"listItem","content":[{"type":"paragraph","content":[{"text":"find and connect to COMx / ttyUSBy interface with terminal application","type":"text"}]}]},{"type":"listItem","content":[{"type":"paragraph","content":[{"text":"push in microSD","type":"text"}]}]},{"type":"listItem","content":[{"type":"paragraph","content":[{"text":"press reset button","type":"text"}]}]}]},{"type":"heading","attrs":{"level":3},"content":[{"text":"Software Setup","type":"text"}]},{"type":"heading","attrs":{"level":4},"content":[{"text":"Prepare bootable microSD Card","type":"text"}]},{"type":"orderedList","attrs":{"order":1},"content":[{"type":"listItem","content":[{"type":"paragraph","content":[{"text":"Download prebuilt sdcard image based on either ","type":"text"},{"text":"Buildroot","type":"text","marks":[{"type":"link","attrs":{"href":"https://images.solid-run.com/RZ/Buildroot"}}]},{"text":" or ","type":"text"},{"text":"Debian","type":"text","marks":[{"type":"link","attrs":{"href":"https://images.solid-run.com/RZ/Debian"}}]},{"text":":","type":"text"},{"type":"hardBreak"},{"text":"rzg2l-solidrun-sd-debian-.img.xz","type":"text","marks":[{"type":"code"}]},{"type":"hardBreak"},{"text":"rzg2l-solidrun-sd-buildroot-.img.xz","type":"text","marks":[{"type":"code"}]}]}]},{"type":"listItem","content":[{"type":"paragraph","content":[{"text":"uncompress downloaded image file","type":"text"}]}]},{"type":"listItem","content":[{"type":"paragraph","content":[{"text":"write image file to microSD card to create a byte-for-byte copy. 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The ","type":"text"},{"text":"tlv_eeprom","type":"text","marks":[{"type":"code"}]},{"text":" command in U-Boot can be used to read this data.","type":"text"}]},{"type":"paragraph","content":[{"text":"Important:","type":"text","marks":[{"type":"strong"}]},{"text":" If this information is deleted or becomes corrupted, it will impact the correct initialization and functionality of the product. In such cases, please contact SolidRun support for assistance.","type":"text"}]}]},{"type":"heading","attrs":{"level":2},"content":[{"text":"First Steps with Buildroot reference system","type":"text"}]},{"type":"heading","attrs":{"level":3},"content":[{"text":"Log-In","type":"text"}]},{"type":"paragraph","content":[{"text":"On power-on with valid software on microSD the system should automatically boot to a login prompt displayed on the serial console:","type":"text"}]},{"type":"codeBlock","content":[{"text":"Welcome to Buildroot\nrzg2l-solidrun login: ","type":"text"}]},{"type":"paragraph","content":[{"text":"Log in with user-name “root”, password “root”.","type":"text"}]},{"type":"heading","attrs":{"level":3},"content":[{"text":"Networking","type":"text"}]},{"type":"paragraph","content":[{"text":"Network interfaces are set to configure automatically using DHCP as soon as an ethernet link has been established.","type":"text"}]},{"type":"paragraph","content":[{"text":"ping","type":"text","marks":[{"type":"code"}]},{"text":", ","type":"text"},{"text":"curl","type":"text","marks":[{"type":"code"}]},{"text":" and ","type":"text"},{"text":"wget","type":"text","marks":[{"type":"code"}]},{"text":" are functional out of the box when connecting to a standard home network.","type":"text"}]},{"type":"paragraph","content":[{"text":"Show assigned IP:","type":"text"}]},{"type":"codeBlock","content":[{"text":"# ip addr show dev eth0\n2: eth0: mtu 1500 qdisc mq state UP group default qlen 1000\n...\n inet 192.168.1.181/24 brd 192.168.1.255 scope global dynamic noprefixroute eth0\n...\n# ip addr show dev eth1\n...","type":"text"}]},{"type":"heading","attrs":{"level":3},"content":[{"text":"Log-In via SSH","type":"text"}]},{"type":"paragraph","content":[{"text":"SSH Log-In is active by default using the same insecure username and password.","type":"text"}]},{"type":"heading","attrs":{"level":2},"content":[{"text":"First Steps with Debian reference system","type":"text"}]},{"type":"heading","attrs":{"level":3},"content":[{"text":"Log-In","type":"text"}]},{"type":"paragraph","content":[{"text":"On power-on with valid software on microSD the system should automatically boot to a login prompt displayed on the serial console:","type":"text"}]},{"type":"codeBlock","content":[{"text":"Debian GNU/Linux 12 rzg2l-solidrun ttySC0\nrzg2l-solidrun login: ","type":"text"}]},{"type":"paragraph","content":[{"text":"Log in with user-name “root”, no password.","type":"text"}]},{"type":"heading","attrs":{"level":3},"content":[{"text":"Networking","type":"text"}]},{"type":"paragraph","content":[{"text":"By default networking is not configured. For advanced or persistent configurations please refer to the ","type":"text"},{"text":"Debian Documentation","type":"text","marks":[{"type":"link","attrs":{"href":"https://wiki.debian.org/NetworkConfiguration"}}]},{"text":".","type":"text"}]},{"type":"paragraph","content":[{"text":"For connecting the first RJ45 port (next to power connector) using automatic configuration, execute:","type":"text"}]},{"type":"codeBlock","attrs":{"language":"shell"},"content":[{"text":"root@rzg2l-solidrun:~# dhclient end0\nroot@rzg2l-solidrun:~# ip addr show end0\n2: end0: mtu 1500 qdisc mq state UP group default qlen 1000\n link/ether d0:63:b4:05:81:94 brd ff:ff:ff:ff:ff:ff\n inet 192.168.1.183/24 brd 192.168.1.255 scope global dynamic end0\n valid_lft 43195sec preferred_lft 43195sec\n inet6 fd78:1be0:f231:0:d263:b4ff:fe05:8194/64 scope global dynamic mngtmpaddr \n valid_lft forever preferred_lft forever\n inet6 fe80::d263:b4ff:fe05:8194/64 scope link \n valid_lft forever preferred_lft forever","type":"text"}]},{"type":"heading","attrs":{"level":3},"content":[{"text":"Log-In via SSH","type":"text"}]},{"type":"paragraph","content":[{"text":"To log in via SSH, an ssh key must be installed first. Copy your favourite public key, e.g. from ","type":"text"},{"text":"~/.ssh/id_ed25519.pub","type":"text","marks":[{"type":"code"}]},{"text":", into a new file in the root users home directory at ","type":"text"},{"text":"~/.ssh/authorized_keys","type":"text","marks":[{"type":"code"}]},{"text":":","type":"text"}]},{"type":"codeBlock","attrs":{"language":"shell"},"content":[{"text":"root@rzg2l-solidrun:~# mkdir .ssh\nroot@rzg2l-solidrun:~# cat > .ssh/authorized_keys << EOF\nssh-ed25519 AAAAinsertyour pubkey@here\nEOF","type":"text"}]},{"type":"heading","attrs":{"level":2},"content":[{"text":"Advanced Steps with Debian/Buildroot reference system","type":"text"}]},{"type":"heading","attrs":{"level":3},"content":[{"text":"Expand Root Filesystem","type":"text"}]},{"type":"paragraph","content":[{"text":"After flashing the root filesystem is smaller than the eMMC. To utilize all space, resize both the rootfs partition - and then the filesystem:","type":"text"}]},{"type":"orderedList","attrs":{"order":1},"content":[{"type":"listItem","content":[{"type":"paragraph","content":[{"text":"inspect partitions:","type":"text"}]},{"type":"paragraph","content":[{"text":"Using fdisk, view the current partitions. Take note of the start sector for partition 2!","type":"text"}]},{"type":"codeBlock","attrs":{"language":"shell"},"content":[{"text":"root@rzg2l-solidrun:~# fdisk /dev/mmcblk0\n\nWelcome to fdisk (util-linux 2.38.1).\nChanges will remain in memory only, until you decide to write them.\nBe careful before using the write command.\n\nThis disk is currently in use - repartitioning is probably a bad idea.\nIt's recommended to umount all file systems, and swapoff all swap\npartitions on this disk.\n\n\nCommand (m for help): p\n\nDisk /dev/mmcblk0: 14.68 GiB, 15758000128 bytes, 30777344 sectors\nUnits: sectors of 1 * 512 = 512 bytes\nSector size (logical/physical): 512 bytes / 512 bytes\nI/O size (minimum/optimal): 512 bytes / 512 bytes\nDisklabel type: dos\nDisk identifier: 0xa98926ac\n\nDevice Boot Start End Sectors Size Id Type\n/dev/mmcblk0p1 * 16384 38911 22528 11M c W95 FAT32 (LBA)\n/dev/mmcblk0p2 * 38912 1730559 1691648 826M 83 Linux\n\nCommand (m for help):","type":"text"}]}]},{"type":"listItem","content":[{"type":"paragraph","content":[{"text":"resize partition 2:","type":"text"}]},{"type":"paragraph","content":[{"text":"Drop and re-create partition 2 at the same starting sector noted before, keeping the ext4 signature when prompted and re-adding the bootable flag:","type":"text"}]},{"type":"codeBlock","attrs":{"language":"shell"},"content":[{"text":"Command (m for help): d\nPartition number (1,2, default 2): 2\n\nPartition 2 has been deleted.\n\nCommand (m for help): n\nPartition type\n p primary (1 primary, 0 extended, 3 free)\n e extended (container for logical partitions)\nSelect (default p): p\nPartition number (2-4, default 2): 2\nFirst sector (2048-30777343, default 2048): 38912\nLast sector, +/-sectors or +/-size{K,M,G,T,P} (38912-30777343, default 30777343): \n\nCreated a new partition 2 of type 'Linux' and of size 14.7 GiB.\nPartition #2 contains a ext4 signature.\n\nDo you want to remove the signature? [Y]es/[N]o: N\n\nCommand (m for help): a\nPartition number (1,2, default 2): 2\n\nThe bootable flag on partition 2 is enabled now.\n\nCommand (m for help): p\n\nDisk /dev/mmcblk0: 14.68 GiB, 15758000128 bytes, 30777344 sectors\nUnits: sectors of 1 * 512 = 512 bytes\nSector size (logical/physical): 512 bytes / 512 bytes\nI/O size (minimum/optimal): 512 bytes / 512 bytes\nDisklabel type: dos\nDisk identifier: 0xa98926ac\n\nDevice Boot Start End Sectors Size Id Type\n/dev/mmcblk0p1 * 16384 38911 22528 11M c W95 FAT32 (LBA)\n/dev/mmcblk0p2 * 38912 30777343 30738432 14.7G 83 Linux\n\nCommand (m for help): w\nThe partition table has been altered.\nSyncing disks.","type":"text"}]}]},{"type":"listItem","content":[{"type":"paragraph","content":[{"text":"resize root filesystem:","type":"text"}]},{"type":"paragraph","content":[{"text":"Linux supports online-resizing for the ext4 filesystem. Invoke ","type":"text"},{"text":"resize2fs","type":"text","marks":[{"type":"code"}]},{"text":" on partition 1 to do so:","type":"text"}]},{"type":"codeBlock","attrs":{"language":"shell"},"content":[{"text":"root@rzg2l-solidrun:~# resize2fs /dev/mmcblk0p2","type":"text"}]}]}]},{"type":"heading","attrs":{"level":3},"content":[{"text":"Install to eMMC","type":"text"}]},{"type":"paragraph","content":[{"text":"eMMC and microSD are not usable at the same time but selected first by boot-select switches and then by software during boot.","type":"text"}]},{"type":"paragraph","content":[{"text":"Installation of software to the eMMC requires a special procedure:","type":"text"}]},{"type":"orderedList","attrs":{"order":1},"content":[{"type":"listItem","content":[{"type":"paragraph","content":[{"text":"Download a prebuilt sdcard image based on either ","type":"text"},{"text":"Buildroot","type":"text","marks":[{"type":"link","attrs":{"href":"https://images.solid-run.com/RZ/Buildroot"}}]},{"text":" and create a bootable microSD card.","type":"text"}]}]},{"type":"listItem","content":[{"type":"paragraph","content":[{"text":"Format a USB flash drive with FAT32 (or ext4), and place on it the images that are to be installed to the eMMC, both Bootloader and OS - e.g.:","type":"text"},{"type":"hardBreak"},{"text":"- ","type":"text"},{"text":"rzg2l-solidrun-sd-debian-.img.xz","type":"text","marks":[{"type":"code"}]},{"type":"hardBreak"},{"text":"- ","type":"text"},{"text":"rzg2l-solidrun-mmc-bootloader-.img","type":"text","marks":[{"type":"code"}]}]}]},{"type":"listItem","content":[{"type":"paragraph","content":[{"text":"Insert microSD, set boot-select switches for microSD, then power-on the board and stop in u-boot at the timeout prompt by pressing any key:","type":"text"}]},{"type":"codeBlock","content":[{"text":"...\nHit any key to stop autoboot: 0\n=> ","type":"text"}]}]},{"type":"listItem","content":[{"type":"paragraph","content":[{"text":"Select eMMC and boot into a small rootfs in initramfs:","type":"text"}]},{"type":"codeBlock","content":[{"text":"=> setenv sdio_select mmc\n=> boot\nswitch to partitions #0, OK\nmmc0 is current device\nScanning mmc 0:1...\nFound /extlinux/extlinux.conf\nRetrieving file: /extlinux/extlinux.conf\n303 bytes read in 1 ms (295.9 KiB/s)\nRZ/G2* boot options\n1: mmc boot\n2: initrd boot\nEnter choice: ","type":"text"}]},{"type":"paragraph","content":[{"text":"Quickly type the number “2”, then press return:","type":"text"}]},{"type":"codeBlock","content":[{"text":"Enter choice: 2\n2: initrd boot\nRetrieving file: /initrd.img\n48479777 bytes read in 4013 ms (11.5 MiB/s)\n...\nWelcome to Buildroot\nbuildroot login: ","type":"text"}]}]},{"type":"listItem","content":[{"type":"paragraph","content":[{"text":"Log-in with user “root”, password “root”","type":"text"}]}]},{"type":"listItem","content":[{"type":"paragraph","content":[{"text":"Confirm eMMC is available:","type":"text"}]},{"type":"codeBlock","content":[{"text":"# lsblk\nNAME MAJ:MIN RM SIZE RO TYPE MOUNTPOINTS\nmmcblk0 179:0 0 14.7G 0 disk \nmmcblk0boot0 179:8 0 4M 1 disk \nmmcblk0boot1 179:16 0 4M 1 disk \nzram0 253:0 0 0B 0 disk","type":"text"}]},{"type":"paragraph","content":[{"text":"When the list includes “mmcblk0boot0” eMMC has been selected successfully.","type":"text"}]}]},{"type":"listItem","content":[{"type":"paragraph","content":[{"text":"Connect USB flash drive, then find the images and install them to eMMC:","type":"text"}]},{"type":"codeBlock","content":[{"text":"#\n[ 165.516448] usb 2-1: new high-speed USB device number 2 using ehci-platform\n[ 165.691720] usb-storage 2-1:1.0: USB Mass Storage device detected\n[ 165.698778] scsi host0: usb-storage 2-1:1.0\n[ 166.726993] scsi 0:0:0:0: Direct-Access TOSHIBA TransMemory 5.00 PQ: 0 ANSI: 0 CCS\n[ 168.358467] sd 0:0:0:0: [sda] 2013184 512-byte logical blocks: (1.03 GB/983 MiB)\n[ 168.366454] sd 0:0:0:0: [sda] Write Protect is off\n[ 168.371981] sd 0:0:0:0: [sda] No Caching mode page found\n[ 168.377329] sd 0:0:0:0: [sda] Assuming drive cache: write through\n[ 168.405783] sda: sda1\n[ 168.411371] sd 0:0:0:0: [sda] Attached SCSI removable disk\n#\n# mount /dev/sda1 /mnt\n# cd /mnt\n# ls\n rzg2l-solidrun-mmc-bootloader-.img\n rzg2l-solidrun-sd-debian-.img.xz\n # # remove write-protection on boot partition\n # echo 0 > /sys/devices/platform/soc/11c00000.mmc/mmc_host/mmc0/mmc0:0001/block/mmcblk0/mmcblk0boot0/force_ro\n #\n # # write bootloader image\n # dd if=rzg2l-solidrun-mmc-bootloader-.img of=/dev/mmcblk0boot0\n #\n # Ensure boot partition is configured\n # mmc bootpart enable 1 0 /dev/mmcblk0\n # \n # # write OS image\n # xzcat rzg2l-solidrun-sd-debian-0bf2343.img.xz | dd of=/dev/mmcblk0 bs=4M conv=fsync","type":"text"}]}]},{"type":"listItem","content":[{"type":"paragraph","content":[{"text":"power-off the board, remove microSD and change boot select switches for eMMC.","type":"text"}]}]}]},{"type":"paragraph","content":[{"text":"On next power-on the system will boot from eMMC.","type":"text"}]},{"type":"heading","attrs":{"level":2},"content":[{"text":"Accessing Sensors, Ports and Peripherals","type":"text"}]},{"type":"paragraph","content":[{"text":"See below some minimal examples making use of various board features:","type":"text"}]},{"type":"heading","attrs":{"level":3},"content":[{"text":"RGB LED","type":"text"}]},{"type":"paragraph","content":[{"text":"The 3-colour LED D7 is controlled using the ","type":"text"},{"text":"Linux LED Framework","type":"text","marks":[{"type":"link","attrs":{"href":"https://docs.kernel.org/leds/leds-class.html"}}]},{"text":". Each colour is controlled separately supporting On, Off and triggers. E.g.:","type":"text"}]},{"type":"codeBlock","content":[{"text":"echo heartbeat > /sys/class/leds/d7:blue/trigger\necho 1 > /sys/class/leds/d7:green/brightness\necho 0 > /sys/class/leds/d7:red/brightness","type":"text"}]},{"type":"heading","attrs":{"level":3},"content":[{"text":"Accelerometer","type":"text"}]},{"type":"paragraph","content":[{"text":"The accelerometer is using the ","type":"text"},{"text":"Linux IIO Framework","type":"text","marks":[{"type":"link","attrs":{"href":"https://www.kernel.org/doc/html/v4.16/driver-api/iio/index.html"}}]},{"text":". Sensor data can be accessed using ","type":"text"},{"text":"libIIO","type":"text","marks":[{"type":"link","attrs":{"href":"https://wiki.analog.com/resources/tools-software/linux-software/libiio"}}]},{"text":".","type":"text"}]},{"type":"heading","attrs":{"level":3},"content":[{"text":"Temperature / Humidity Sensor","type":"text"}]},{"type":"paragraph","content":[{"text":"The temperature and humidity sensor has no Linux driver at this time. Sensor data can be read out from userspace 2ith i2c cli utilities:","type":"text"}]},{"type":"codeBlock","content":[{"text":"# measure humidity and temperature\ni2ctransfer -y 0 w1@0x54 0xf5\n\n# read measurement results: 2 byte humidity, 2 byte temperature, 1 byte crc\ni2ctransfer -y 0 r5@0x54","type":"text"}]},{"type":"paragraph","content":[{"text":"For further information see ","type":"text"},{"text":"HS4003","type":"text","marks":[{"type":"link","attrs":{"href":"https://www.renesas.com/hs4003"}}]},{"text":" product page.","type":"text"}]},{"type":"heading","attrs":{"level":3},"content":[{"text":"Ambient Light Sensor","type":"text"}]},{"type":"paragraph","content":[{"text":"The light sensor has no Linux driver at this time. Sensor data can be read out from userspace with i2c cli utilities:","type":"text"}]},{"type":"codeBlock","content":[{"text":"# setup sensor\ni2ctransfer -y 0 w2@0x44 0x00 0x80; i2ctransfer -y 0 w2@0x44 0x01 0x08\n\n# read data: 2 byte lux, 2 byte timer\ni2ctransfer -y 0 w1@0x44 0x04 r4","type":"text"}]},{"type":"paragraph","content":[{"text":"For further information see ","type":"text"},{"text":"ISL76683","type":"text","marks":[{"type":"link","attrs":{"href":"https://www.renesas.com/isl76683"}}]},{"text":" product page.","type":"text"}]},{"type":"heading","attrs":{"level":3},"content":[{"text":"Air Quality Sensor","type":"text"}]},{"type":"paragraph","content":[{"text":"The ZMOD4410 has no Linux driver at this time. See ","type":"text"},{"text":"ZMOD4410","type":"text","marks":[{"type":"link","attrs":{"href":"https://www.renesas.com/zmod4410"}}]},{"text":" and ","type":"text"},{"text":"ZMOD4410","type":"text","marks":[{"type":"link","attrs":{"href":"https://www.renesas.com/zmod4410-evk"}}]},{"text":" Evaluation Kit product pages for further information.","type":"text"},{"type":"hardBreak"},{"text":"The device responds on I2C Bus 0 at chip address 0x32.","type":"text"}]},{"type":"heading","attrs":{"level":3},"content":[{"text":"GPS","type":"text"}]},{"type":"heading","attrs":{"level":4},"content":[{"text":"UART","type":"text"}]},{"type":"blockquote","content":[{"type":"paragraph","content":[{"text":"Note: Available only with G2L SoM","type":"text"}]}]},{"type":"paragraph","content":[{"text":"Raw NMEA records can be accessed directly via ","type":"text"},{"text":"/dev/gnss0","type":"text","marks":[{"type":"code"}]},{"text":" device:","type":"text"}]},{"type":"codeBlock","content":[{"text":"cat /dev/gnss0","type":"text"}]},{"type":"paragraph","content":[{"text":"Alternatively for a more friendly UI the ","type":"text"},{"text":"gpsd","type":"text","marks":[{"type":"link","attrs":{"href":"https://gpsd.gitlab.io/gpsd/"}}]},{"text":" package and its utilities may be used after configuring it to use ","type":"text"},{"text":"/dev/gnss0","type":"text","marks":[{"type":"code"}]},{"text":" at 38400 baud (see e.g. ","type":"text"},{"text":"/etc/default/gpsd","type":"text","marks":[{"type":"link","attrs":{"href":"https://github.com/SolidRun/imx8dxl_build/blob/develop/overlay/etc/default/gpsd"}}]},{"text":").","type":"text"}]},{"type":"heading","attrs":{"level":4},"content":[{"text":"I2C","type":"text"}]},{"type":"blockquote","content":[{"type":"paragraph","content":[{"text":"Note: Available only with G2LC SoM","type":"text"}]},{"type":"paragraph","content":[{"text":"There is no Linux driver for I2C interface of U-Blox MIA-M10Q. Data may be polled at bus 1 chip 0x42 address 0xFD-0xFE (length) and 0xFF (data).","type":"text"},{"type":"hardBreak"},{"text":"The access protocol should be implemented in a kernel driver as a single transaction must read 0xFD-0xFE plus N additional bytes or abort with a NAK.","type":"text"}]},{"type":"paragraph","content":[{"text":"For details see MIA-M10Q Integration Manual.","type":"text"}]}]},{"type":"heading","attrs":{"level":3},"content":[{"text":"RS485","type":"text"}]},{"type":"paragraph","content":[{"text":"A Half-Duplex (2-wire) RS485 is avaialble on J26:","type":"text"}]},{"type":"paragraph","content":[{"text":"TBD: photo connector showing pins","type":"text"}]},{"type":"paragraph","content":[{"text":"Normally the host should automatically switch the transceiver between RX and TX as needed, i.e. RX normally and TX while transmitting data. This is not (currently) supported by the Renesas G2L/C Linux uart driver, users must switch manually from userspace:","type":"text"}]},{"type":"orderedList","attrs":{"order":1},"content":[{"type":"listItem","content":[{"type":"paragraph","content":[{"text":"Acquire TX/RX control GPIO:","type":"text"}]},{"type":"codeBlock","content":[{"text":"# for G2L only\necho 144 > /sys/class/gpio/export\ncd /sys/class/gpio/P3_0\n\n# for G2LC only\necho 442 > /sys/class/gpio/export\ncd /sys/class/gpio/P40_2\n\n# Both\necho out > direction\necho 0 > value","type":"text"}]}]},{"type":"listItem","content":[{"type":"paragraph","content":[{"text":"Set UART speed as needed:","type":"text"}]},{"type":"codeBlock","content":[{"text":"# e.g. 9600 baud\nstty -F /dev/ttySC3 9600","type":"text"}]}]},{"type":"listItem","content":[{"type":"paragraph","content":[{"text":"Transmit a message:","type":"text"}]},{"type":"codeBlock","content":[{"text":"echo 1 > value\necho \"Hello, World\" > /dev/ttySC3\necho 0 > value","type":"text"}]}]},{"type":"listItem","content":[{"type":"paragraph","content":[{"text":"Receive messages:","type":"text"}]},{"type":"codeBlock","content":[{"text":"cat /dev/ttySC3","type":"text"}]}]}]},{"type":"heading","attrs":{"level":3},"content":[{"text":"CAN","type":"text"}]},{"type":"blockquote","content":[{"type":"paragraph","content":[{"text":"Note: Available only with G2L SoM","type":"text"}]}]},{"type":"paragraph","content":[{"text":"Two full-duplex CAN interfaces are available on J26:","type":"text"}]},{"type":"paragraph","content":[{"text":"TBD: photo connector showing pins","type":"text"}]},{"type":"orderedList","attrs":{"order":1},"content":[{"type":"listItem","content":[{"type":"paragraph","content":[{"text":"configure interface:","type":"text"}]},{"type":"codeBlock","content":[{"text":"ip link set can0 up type can bitrate 125000 sample-point 0.75 dbitrate 1000000 dsample-point 0.8 fd on","type":"text"}]}]},{"type":"listItem","content":[{"type":"paragraph","content":[{"text":"Transmit a message:","type":"text"}]},{"type":"codeBlock","content":[{"text":"cansend can0 \"123#1234\"","type":"text"}]}]},{"type":"listItem","content":[{"type":"paragraph","content":[{"text":"Receive messages:","type":"text"}]},{"type":"codeBlock","content":[{"text":"candump -i can0","type":"text"}]}]}]},{"type":"paragraph","content":[{"text":"For second interface substitute ","type":"text"},{"text":"can0","type":"text","marks":[{"type":"code"}]},{"text":" with ","type":"text"},{"text":"can1","type":"text","marks":[{"type":"code"}]},{"text":".","type":"text"}]},{"type":"heading","attrs":{"level":3},"content":[{"text":"Digital IO","type":"text"}]},{"type":"paragraph","content":[{"text":"Two digital inputs and two digital outputs operating at externally supplied voltage are available on J26:","type":"text"}]},{"type":"paragraph","content":[{"text":"TBD: photo connector showing pins","type":"text"}]},{"type":"paragraph","content":[{"text":"The signals can be accessed using ","type":"text"},{"text":"libgpiod","type":"text","marks":[{"type":"link","attrs":{"href":"https://libgpiod.readthedocs.io/en/latest/"}}]},{"text":" example utilities:","type":"text"}]},{"type":"codeBlock","content":[{"text":"# read inputs\ngpioget $(gpiofind bDIG_IN1)\ngpioget $(gpiofind bDIG_IN2)\n\n# set outputs low\ngpioset $(gpiofind DIG_OUT1)=0\ngpioset $(gpiofind DIG_OUT2)=0\n\n# set outputs high\ngpioset $(gpiofind DIG_OUT1)=1\ngpioset $(gpiofind DIG_OUT2)=1","type":"text"}]},{"type":"paragraph","content":[{"text":"Note: The inputs are inverting, i.e. reading a 1 means logical 0 on the line.","type":"text"}]},{"type":"heading","attrs":{"level":3},"content":[{"text":"WiFi","type":"text"}]},{"type":"paragraph","content":[{"text":"The Linux driver for DA16200 WiFi does not load automatically, but must be loaded manually after boot:","type":"text"}]},{"type":"codeBlock","content":[{"text":"modprobe rswlan\nrfkill unblock phy0","type":"text"}]},{"type":"paragraph","content":[{"text":"After unblocking with ","type":"text"},{"text":"rfkill","type":"text","marks":[{"type":"code"}]},{"text":" the new ","type":"text"},{"text":"wlan0","type":"text","marks":[{"type":"code"}]},{"text":" interface is operated like any standard Linux wifi device, see e.g. the ","type":"text"},{"text":"Debian WiFi/HowToUse","type":"text","marks":[{"type":"link","attrs":{"href":"https://wiki.debian.org/WiFi/HowToUse#Using_ifupdown_and_wireless-tools"}}]},{"text":" page.","type":"text"}]},{"type":"heading","attrs":{"level":3},"content":[{"text":"Bluetooth","type":"text"}]},{"type":"paragraph","content":[{"text":"The DA14531 Bluetooth module is available by default as ","type":"text"},{"text":"hci0","type":"text","marks":[{"type":"code"}]},{"text":" and may be used after unblocking using the standard ","type":"text"},{"text":"bluez","type":"text","marks":[{"type":"link","attrs":{"href":"https://www.bluez.org/"}}]},{"text":" stack, e.g.:","type":"text"}]},{"type":"codeBlock","content":[{"text":"rfkill unblock hci0\nhciconfig hci0\nhcitool -i hci0 lescan","type":"text"}]},{"type":"heading","attrs":{"level":3},"content":[{"text":"LTE NB-IoT/M1 Cellular Modem","type":"text"}]},{"type":"paragraph","content":[{"text":"The LTE Module is not currently supported by ModemManager. Instead it should be operated manually or scripted using AT commands.","type":"text"}]},{"type":"heading","attrs":{"level":4},"content":[{"text":"Access AT Interface","type":"text"}]},{"type":"paragraph","content":[{"text":"The AT interface is available at ","type":"text"},{"text":"/dev/ttySC2","type":"text","marks":[{"type":"code"}]},{"text":" with hardware flow-control at 1843200 baudrate. It can be accessed using any serial terminal, for example ","type":"text"},{"text":"picocom","type":"text","marks":[{"type":"code"}]},{"text":":","type":"text"}]},{"type":"codeBlock","content":[{"text":"picocom -b 1843200 -y none -d 8 -p 1 -f h /dev/ttySC2","type":"text"}]},{"type":"paragraph","content":[{"text":"By default commands are not echoed but the terminal can be configured into a nicer mode with echo, auto-complete and history by executing ","type":"text"},{"text":"AT+SMART=1","type":"text","marks":[{"type":"code"}]},{"text":".","type":"text"}]},{"type":"paragraph","content":[{"text":"To leave picocom press ctrl+a, then ctrl+x.","type":"text"}]},{"type":"heading","attrs":{"level":4},"content":[{"text":"SIM Select","type":"text"}]},{"type":"paragraph","content":[{"text":"The Board supports either physical SIM via connector J3, and a soldered-on eSIM. The modem can switch between them using AT commands:","type":"text"}]},{"type":"codeBlock","content":[{"text":"# first power off radio\nAT+CFUN=0\n\n# select SIM 1 (removable)\nAT+CSUS=0\n\n# select SIM 2 (eSIM)\nAT+CSUS=1\n\n# return two either airplane mode (CFUN=4) or normal operation (CFUN=1)\nAT+CFUN=1","type":"text"}]},{"type":"heading","attrs":{"level":4},"content":[{"text":"Cat-M1 / NB-IoT Select","type":"text"}]},{"type":"paragraph","content":[{"text":"The LTE module supports both Cat-M1 and NB-IoT. The choice is made in modem power-off state (","type":"text"},{"text":"AT+CFUN=0","type":"text","marks":[{"type":"code"}]},{"text":") using AT command ","type":"text"},{"text":"AT+SQNMODEACTIVE","type":"text","marks":[{"type":"code"}]},{"text":" (value 1 = LTE-M, value 2 = NB-IoT) followed with reset:","type":"text"}]},{"type":"codeBlock","content":[{"text":"AT+CFUN=0\nAT+SQNMODEACTIVE=1\nAT^RESET","type":"text"}]},{"type":"heading","attrs":{"level":4},"content":[{"text":"Automatic Power-On","type":"text"}]},{"type":"paragraph","content":[{"text":"Normally the modem radio stays off after boot (CFUN=0). It can be reconfigured for connecting to a network automatically (CFUN=1) using AT commands:","type":"text"}]},{"type":"codeBlock","content":[{"text":"AT+SQNAUTOCONNECT=1","type":"text"}]},{"type":"heading","attrs":{"level":4},"content":[{"text":"DATA Connection","type":"text"}]},{"type":"paragraph","content":[{"text":"Create file ","type":"text"},{"text":"/etc/ppp/options","type":"text","marks":[{"type":"code"}]},{"text":":","type":"text"}]},{"type":"codeBlock","content":[{"text":"/dev/ttySC2\n1843200\nnodetach\nnoauth\nlocal\nnoipdefault\ndefaultroute\nusepeerdns\ncrtscts\nlock\ndebug\ndump\n-chap\nconnect \"/usr/sbin/chat -t6 -f /etc/chatscripts/connect\"\ndisconnect \"/usr/sbin/chat -t6 -f /etc/chatscripts/disconnect\"","type":"text"}]},{"type":"paragraph","content":[{"text":"Create file ","type":"text"},{"text":"/etc/chatscripts/connect","type":"text","marks":[{"type":"code"}]},{"text":":","type":"text"}]},{"type":"codeBlock","content":[{"text":"ABORT \"NO CARRIER\"\nTIMEOUT 30\nABORT ERROR\n \"\" AT\nOK AT+CGDATA=\"PPP\",1\nCONNECT \"\"","type":"text"}]},{"type":"paragraph","content":[{"text":"Create file ","type":"text"},{"text":"/etc/chatscripts/disconnect","type":"text","marks":[{"type":"code"}]},{"text":":","type":"text"}]},{"type":"codeBlock","content":[{"text":"\"\" \"\\d\\d\\d+++\\c\"","type":"text"}]},{"type":"paragraph"},{"type":"paragraph","content":[{"text":"Ensure the modem is registering to a network, i.e. ","type":"text"},{"text":"AT+CFUN=1","type":"text","marks":[{"type":"code"}]},{"text":" or automatic power-on above.","type":"text"}]},{"type":"paragraph","content":[{"text":"Finally execute ","type":"text"},{"text":"ppp","type":"text","marks":[{"type":"code"}]},{"text":" application to connect:","type":"text"}]},{"type":"codeBlock","content":[{"text":"pppd","type":"text"}]},{"type":"blockquote","content":[{"type":"paragraph","content":[{"text":"Note: pppd version 2.5.2 or later is required, older versions can' t cope with the non-standard ","type":"text"},{"text":"1843200","type":"text","marks":[{"type":"code"}]},{"text":" baudrate (“speed 1843200 not supported“).","type":"text"}]}]},{"type":"heading","attrs":{"level":3},"content":[{"text":"CLPD Motor Driver (SLG47115)","type":"text"}]},{"type":"blockquote","content":[{"type":"paragraph","content":[{"text":"Note: I2C Interface available only with G2LC SoM","type":"text"}]}]},{"type":"paragraph","content":[{"text":"The SLG47115 has no Linux driver at this time and comes unprogrammed. It responds on I2C Bus 1 at chip address 0x00.","type":"text"}]},{"type":"paragraph","content":[{"text":"For further information see ","type":"text"},{"text":"SLG47115","type":"text","marks":[{"type":"link","attrs":{"href":"https://www.renesas.com/slg47115"}}]},{"text":" product page.","type":"text"}]}],"version":1}

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