having spent some time writing rtos machine control code, this is definitely a problem. it’s a problem at the os level too. the API in most cases sucks for concurrency.
with Linux cnc if you call a while loop or a sleep etc the machine stops cold. why the hell can’t those be separately threaded subroutines with a time stamp ?? bizzarr indeed
On sale now on aliexpress.com:
Coming soon:
OT: lychee is a berry from Asia. So a lichee pi sounds delicious!
@rjzak Maybe open a pull request for RISC-V Ecosystem Interactive Landscape to have the logo added? Details on the page you linked.
Ahoy,
The mebtioned Risc-V board unboxed/reviewed HERE - below - on YT by Chris Barnatt :
Explaining Computer presents – Lichee Pi 4A - Serious RISC-V Desktop Computing
Kind regards,
I am currently working on Device Manager v2 and implementing some VisionFive2 peripheral drivers for new device manager architecture.
Managed to implement SD/MMC host driver and boot Haiku installed on SD card.
Source code: Commits · X547/haiku · GitHub
Device node tree:
Node("Devices Root"): no driver
Node("Root subnode"): bus_managers/fdt/driver/v1
Node("Root"): no driver
Node("osc"): drivers/clock/fixed_clock/driver/v1
Node("gmac1_rmii_refin"): drivers/clock/fixed_clock/driver/v1
Node("gmac1_rgmii_rxin"): drivers/clock/fixed_clock/driver/v1
Node("i2stx_bclk_ext"): drivers/clock/fixed_clock/driver/v1
Node("i2stx_lrck_ext"): drivers/clock/fixed_clock/driver/v1
Node("i2srx_bclk_ext"): drivers/clock/fixed_clock/driver/v1
Node("i2srx_lrck_ext"): drivers/clock/fixed_clock/driver/v1
Node("tdm_ext"): drivers/clock/fixed_clock/driver/v1
Node("mclk_ext"): drivers/clock/fixed_clock/driver/v1
Node("jtag_tck_inner"): drivers/clock/fixed_clock/driver/v1
Node("bist_apb"): drivers/clock/fixed_clock/driver/v1
Node("stg_apb"): drivers/clock/fixed_clock/driver/v1
Node("gmac0_rmii_refin"): drivers/clock/fixed_clock/driver/v1
Node("gmac0_rgmii_rxin"): drivers/clock/fixed_clock/driver/v1
Node("clk_rtc"): drivers/clock/fixed_clock/driver/v1
Node("hdmitx0_pixelclk"): drivers/clock/fixed_clock/driver/v1
Node("mipitx_dphy_rxesc"): drivers/clock/fixed_clock/driver/v1
Node("mipitx_dphy_txbytehs"): drivers/clock/fixed_clock/driver/v1
Node("cpus"): no driver
Node("cpu@0"): no driver
Node("interrupt-controller"): no driver
Node("cpu@1"): no driver
Node("interrupt-controller"): no driver
Node("cpu@2"): no driver
Node("interrupt-controller"): no driver
Node("cpu@3"): no driver
Node("interrupt-controller"): no driver
Node("cpu@4"): no driver
Node("interrupt-controller"): no driver
Node("soc"): no driver
Node("pmu"): no driver
Node("cache-controller@2010000"): no driver
Node("aon_syscon@17010000"): drivers/misc/syscon/driver/v1
Node("stg_syscon@10240000"): drivers/misc/syscon/driver/v1
Node("sys_syscon@13030000"): drivers/misc/syscon/driver/v1
Node("clint@2000000"): no driver
Node("plic@c000000"): drivers/interrupt_controllers/plic/driver/v1
Node("clock-controller"): drivers/clock/jh7110_clock/driver/v1
Node("clock-controller@295C0000"): no driver
Node("clock-controller@19810000"): no driver
Node("spi@13010000"): no driver
Node("nor-flash@0"): no driver
Node("otp@17050000"): no driver
Node("usbdrd"): no driver
Node("usb@10100000"): no driver
Node("timer@13050000"): no driver
Node("wdog@13070000"): no driver
Node("rtc@17040000"): no driver
Node("pmu@17030000"): no driver
Node("serial@10000000"): no driver
Node("serial@10010000"): no driver
Node("serial@10020000"): no driver
Node("serial@12000000"): no driver
Node("serial@12010000"): no driver
Node("serial@12020000"): no driver
Node("dma-controller@16050000"): no driver
Node("gpio@13040000"): no driver
Node("uart0-0"): no driver
Node("tx-pins"): no driver
Node("rx-pins"): no driver
Node("mmc0-pins"): no driver
Node("mmc0-pins-rest"): no driver
Node("sdcard1-pins"): no driver
Node("sdcard1-pins0"): no driver
Node("sdcard1-pins1"): no driver
Node("sdcard1-pins2"): no driver
Node("sdcard1-pins3"): no driver
Node("sdcard1-pins4"): no driver
Node("sdcard1-pins5"): no driver
Node("pcie0_perst_default"): no driver
Node("perst-pins"): no driver
Node("pcie0_perst_active"): no driver
Node("perst-pins"): no driver
Node("pcie0_wake_default"): no driver
Node("wake-pins"): no driver
Node("pcie0_clkreq_default"): no driver
Node("clkreq-pins"): no driver
Node("pcie1_perst_default"): no driver
Node("perst-pins"): no driver
Node("pcie1_perst_active"): no driver
Node("perst-pins"): no driver
Node("pcie1_wake_default"): no driver
Node("wake-pins"): no driver
Node("pcie1_clkreq_default"): no driver
Node("clkreq-pins"): no driver
Node("i2c2-0"): no driver
Node("i2c-pins"): no driver
Node("i2c5-0"): no driver
Node("i2c-pins"): no driver
Node("hdmi-0"): no driver
Node("cec-pins"): no driver
Node("hpd-pins"): no driver
Node("gpio@17020000"): no driver
Node("trng@1600C000"): no driver
Node("sec_dma@16008000"): no driver
Node("crypto@16000000"): no driver
Node("i2c@12060000"): no driver
Node("i2c@10030000"): no driver
Node("i2c@10040000"): no driver
Node("i2c@10050000"): no driver
Node("rm68200_panel@45"): no driver
Node("i2c5@12050000"): no driver
Node("eeprom@50"): no driver
Node("axp15060_reg@36"): no driver
Node("sdio0@16010000"): busses/mmc/designware_mmc/driver/v1
Node("MMC Bus Manager"): bus_managers/mmc/driver/v1
Node("sdio1@16020000"): busses/mmc/designware_mmc/driver/v1
Node("MMC Bus Manager"): bus_managers/mmc/driver/v1
Node("MMC Device"): drivers/disk/mmc_disk/driver/v1
Node("vin_sysctl@19800000"): no driver
Node("jpu@11900000"): no driver
Node("vpu_dec@130A0000"): no driver
Node("vpu_enc@130B0000"): no driver
Node("reset-controller"): drivers/reset/jh7110_reset/driver/v1
Node("stmmac-axi-config"): no driver
Node("ethernet@16030000"): drivers/network/dwmac/driver/v1
Node("ethernet-phy@0"): no driver
Node("ethernet@16040000"): drivers/network/dwmac/driver/v1
Node("ethernet-phy@1"): no driver
Node("gpu@18000000"): no driver
Node("can@130d0000"): no driver
Node("can@130e0000"): no driver
Node("tdm@10090000"): no driver
Node("spdif0@100a0000"): no driver
Node("pwmdac@100b0000"): no driver
Node("i2stx@100c0000"): no driver
Node("pdm@100d0000"): no driver
Node("i2srx_3ch@100e0000"): no driver
Node("i2stx_4ch0@120b0000"): no driver
Node("i2stx_4ch1@120c0000"): no driver
Node("pwm@120d0000"): no driver
Node("spdif_transmitter"): no driver
Node("spdif_receiver"): no driver
Node("pwmdac-transmitter"): no driver
Node("dmic_codec"): no driver
Node("spi@10060000"): no driver
Node("pcie@2B000000"): no driver
Node("pcie@2C000000"): no driver
Node("mailbox@0"): no driver
Node("mailbox_client@0"): no driver
Node("dssctrl@295B0000"): drivers/misc/syscon/driver/v1
Node("dc8200@29400000"): no driver
Node("port"): no driver
Node("endpoint@0"): no driver
Node("endpoint@1"): no driver
Node("hdmi@29590000"): no driver
Node("ports"): no driver
Node("port"): no driver
Node("endpoint@0"): no driver
Node("mipi@295d0000"): no driver
Node("ports"): no driver
Node("port"): no driver
Node("endpoint@0"): no driver
Node("display-timings"): no driver
Node("timing0"): no driver
Node("dsi-host"): no driver
Node("hdmi-output"): no driver
Node("mipi-dphy@295e0000"): no driver
Node("snd-card"): no driver
Node("simple-audio-card,dai-link@0"): no driver
Node("cpu"): no driver
Node("codec"): no driver
Node("e24@0"): no driver
Node("dsp@0"): no driver
Node("dmc@100b0000"): no driver
Node("aliases"): no driver
Node("chosen"): no driver
Node("memory@80000000"): no driver
Node("reserved-memory"): no driver
Node("opensbi"): no driver
Node("gpio-restart"): no driver
Node("firmware"): no driver
Node("config"): no driver
Node("__symbols__"): no driver
Node("Root subnode"): drivers/null/driver/v1
Node("Root subnode"): drivers/zero/driver/v1
Ported VisionFive 2 PLDA PCI host controller to device manager v2 and fixed multiple domain registration. Now instead of initializing all PCI domains in init_deferred(), busses of domain are initialized at moment of attaching each PCI host controller.
Node("pcie@2B000000"): busses/pci/plda/driver/v1
Node("PCI Bus Manager"): bus_managers/pci/driver/v1
Node("PCI Device"): no driver
Node("PCI Device"): busses/usb/xhci/driver/v1
Node("USB Bus Manager"): bus_managers/usb/driver/v1
Node("pcie@2C000000"): busses/pci/plda/driver/v1
Node("PCI Bus Manager"): bus_managers/pci/driver/v1
Node("PCI Device"): no driver
Node("PCI Device"): drivers/disk/nvme_disk/driver/v1
The same chip, it would seem, as the just-released BeagleV®-Ahead.
BeagleV®-Ahead is an open-source RISC-V single board computer (SBC) in the form factor of BeagleBone Black with compatible P8 & P9 cape header pins allowing you to stack your favorite BeagleBone cape on top to expand it’s capability. Featuring a powerful quad-core RISC-V processor, BeagleV®-Ahead is designed as an affordable RISC-V enabled pocket-size computer for anybody who want’s to dive deep into the new RISC-V ISA.
The latest video of Chris Barnatt - Explaining Computers channel - is about a whole week (7 days) of using only Risc-V machines !..
As Chris also pinpoint it in final conclusion – even these systems only developer purposed SBCs only with engineer version of Debian OS - very usable and promising how far they are usable even in these form and status.
Over the week he had only failing with video editing softwares (KDEnlive and Blender failed to start) and some security related features (Ubikey HW key ) those had not worked for him on Debian – in case Risc-V :
RISC-V Week - 7 days only using RISC-V computers
Even though its about a year out this board looks super interesting finally from a performance perspective.
Link
It’s also nice to see boards getting more ram at reasonable prices.
Ahoy Bruno ,
Of course … at that time, it was – latest available …
It was not a Hollywood movie title … 
I hadn’t thought you are such naughty by nature … you surprised me with your question. 
The image about you (in me) - until now - was a grave, serious people 
quite surprise
Ahoy folks,
The latest available video about Risc-V system
-- of Chris Barnatt – is
RISC-V Video Editing & 500th Episode
Considering picking up a RISC-V SBC and Haiku compatibility would be nice. Is there a list of risc-v hardware that works?
Are there ISOs for these boards anywhere?
USB flash drive/SD images (i.e. not ISO(CD/DVD)).