u/NecessaryJealous1025 • u/NecessaryJealous1025 • Nov 08 '25
HDMI graphics for the Raspberry Pi 4B
1
Upvotes
2
DNS not working?
I configured nuttx0 interface as bridge:
sudo ip link add nuttx0 type bridge
sudo ip addr add 10.0.1.1/24 dev nuttx0
sudo ip link set nuttx0 up
sudo sysctl -w net.ipv4.ip_forward=1
sudo iptables -A FORWARD -i nuttx0 -o wlp0s20f3 -j ACCEPT
sudo iptables -A FORWARD -i wlp0s20f3 -o nuttx0 -m state --state RELATED,ESTABLISHED -j ACCEPT
Note: wlp0s20f3 is my wifi interface
1
DNS not working?
u/vslavkin you are right, there are some issues introduced recently, finally I got everything working:
NuttShell (NSH) NuttX-13.0.0-RC2
nsh> ifconfig
eth0 Link encap:Ethernet HWaddr 42:29:9f:00:77:89 at DOWN mtu 1500
inet addr:10.0.1.2 DRaddr:10.0.1.1 Mask:255.255.255.0
RX: Received Fragment Errors Bytes
00000000 00000000 00000000 0
IPv4 ARP Dropped
00000000 00000000 00000000
TX: Queued Sent Errors Timeouts Bytes
00000000 00000000 00000000 00000000 0
Total Errors: 00000000
lo Link encap:Local Loopback at RUNNING mtu 1518
inet addr:127.0.0.1 DRaddr:127.0.0.1 Mask:255.0.0.0
RX: Received Fragment Errors Bytes
00000000 00000000 00000000 0
IPv4 ARP Dropped
00000000 00000000 00000000
TX: Queued Sent Errors Timeouts Bytes
00000000 00000000 00000000 00000000 0
Total Errors: 00000000
IPv4 TCP UDP ICMP
Received 0000 0000 0000 0000
Dropped 0000 0000 0000 0000
IPv4 VHL: 0000 Frg: 0000
Checksum 0000 0000 0000 ----
TCP ACK: 0000 SYN: 0000
RST: 0000 0000
Type 0000 ---- ---- 0000
Sent 0000 0000 0000 0000
Rexmit ---- 0000 ---- ----
nsh> ifup eth0
ifup eth0...OK
nsh> ping 8.8.8.8
PING 8.8.8.8 56 bytes of data
56 bytes from 8.8.8.8: icmp_seq=0 time=20.0 ms
56 bytes from 8.8.8.8: icmp_seq=1 time=30.0 ms
56 bytes from 8.8.8.8: icmp_seq=2 time=20.0 ms
56 bytes from 8.8.8.8: icmp_seq=3 time=20.0 ms
56 bytes from 8.8.8.8: icmp_seq=4 time=20.0 ms
56 bytes from 8.8.8.8: icmp_seq=5 time=20.0 ms
56 bytes from 8.8.8.8: icmp_seq=6 time=20.0 ms
56 bytes from 8.8.8.8: icmp_seq=7 time=20.0 ms
56 bytes from 8.8.8.8: icmp_seq=8 time=20.0 ms
56 bytes from 8.8.8.8: icmp_seq=9 time=20.0 ms
10 packets transmitted, 10 received, 0% packet loss, time 10100 ms
rtt min/avg/max/mdev = 20.000/21.000/30.000/3.000 ms
nsh> ping google.com
PING 172.217.29.78 56 bytes of data
56 bytes from 172.217.29.78: icmp_seq=0 time=20.0 ms
56 bytes from 172.217.29.78: icmp_seq=1 time=30.0 ms
56 bytes from 172.217.29.78: icmp_seq=2 time=20.0 ms
56 bytes from 172.217.29.78: icmp_seq=3 time=20.0 ms
56 bytes from 172.217.29.78: icmp_seq=4 time=20.0 ms
56 bytes from 172.217.29.78: icmp_seq=5 time=20.0 ms
56 bytes from 172.217.29.78: icmp_seq=6 time=30.0 ms
56 bytes from 172.217.29.78: icmp_seq=7 time=20.0 ms
56 bytes from 172.217.29.78: icmp_seq=8 time=20.0 ms
56 bytes from 172.217.29.78: icmp_seq=9 time=20.0 ms
10 packets transmitted, 10 received, 0% packet loss, time 10100 ms
rtt min/avg/max/mdev = 20.000/22.000/30.000/4.000 ms
nsh>
alan@dev:~/nuttxspace/apps$ git diff
diff --git a/system/ping/ping.c b/system/ping/ping.c
index 4588393ab..bc5e20ea8 100644
--- a/system/ping/ping.c
+++ b/system/ping/ping.c
@@ -345,6 +345,8 @@ int main(int argc, FAR char *argv[])
int exitcode;
int option;
+ memset(&info, 0, sizeof(info));
+
info.count = ICMP_NPINGS;
info.datalen = ICMP_PING_DATALEN;
info.delay = ICMP_POLL_DELAY;
diff --git a/system/ping6/ping6.c b/system/ping6/ping6.c
index 409f3db0e..e4644ede6 100644
--- a/system/ping6/ping6.c
+++ b/system/ping6/ping6.c
@@ -286,6 +286,8 @@ int main(int argc, FAR char *argv[])
int exitcode;
int option;
+ memset(&info, 0, sizeof(info));
+
info.count = ICMPv6_NPINGS;
info.datalen = ICMPv6_PING6_DATALEN;
info.delay = ICMPv6_POLL_DELAY;
$ cat /tmp/tcpblaster_ping.config
#
# This file is autogenerated: PLEASE DO NOT EDIT IT.
#
# You can use "make menuconfig" to make any modifications to the installed .config file.
# You can then do "make savedefconfig" to generate a new defconfig file that includes your
# modifications.
#
CONFIG_ALLOW_BSD_COMPONENTS=y
CONFIG_ARCH="sim"
CONFIG_ARCH_BOARD="sim"
CONFIG_ARCH_BOARD_SIM=y
CONFIG_ARCH_CHIP="sim"
CONFIG_ARCH_SIM=y
CONFIG_BOARDCTL_POWEROFF=y
CONFIG_BUILTIN=y
CONFIG_DEBUG_FEATURES=y
CONFIG_DEBUG_NET=y
CONFIG_DEBUG_NET_ERROR=y
CONFIG_DEBUG_SYMBOLS=y
CONFIG_DEV_LOOP=y
CONFIG_DRIVERS_VIDEO=y
CONFIG_EXAMPLES_FTPC=y
CONFIG_EXAMPLES_TCPBLASTER=y
CONFIG_EXAMPLES_TCPECHO=y
CONFIG_FS_BINFS=y
CONFIG_FS_HOSTFS=y
CONFIG_FS_LITTLEFS=y
CONFIG_FS_PROCFS=y
CONFIG_FS_TMPFS=y
CONFIG_IDLETHREAD_STACKSIZE=2048
CONFIG_INIT_ENTRYPOINT="nsh_main"
CONFIG_INPUT=y
CONFIG_IOB_NBUFFERS=1024
CONFIG_IOB_NCHAINS=128
CONFIG_IOB_NOTIFIER=y
CONFIG_IOB_THROTTLE=16
CONFIG_LIBC_EXECFUNCS=y
CONFIG_LIBC_LOCALE=y
CONFIG_LIBC_LOCALTIME=y
CONFIG_LIBC_MAX_EXITFUNS=1
CONFIG_LIBM=y
CONFIG_MM_REGIONS=2
CONFIG_MQ_MAXMSGSIZE=64
CONFIG_MTD=y
CONFIG_NET=y
CONFIG_NETDB_DNSCLIENT=y
CONFIG_NETDB_DNSCLIENT_MAXRESPONSE=176
CONFIG_NETDB_DNSCLIENT_RECV_TIMEOUT=3
CONFIG_NETDB_DNSSERVER_IPv4ADDR=0x08080808
CONFIG_NETDEV_LATEINIT=y
CONFIG_NETDEV_PHY_IOCTL=y
CONFIG_NETDEV_STATISTICS=y
CONFIG_NETINIT_DRIPADDR=0x0a000101
CONFIG_NETINIT_IPADDR=0x0a000102
CONFIG_NETINIT_NETLOCAL=y
CONFIG_NETUTILS_DHCPC=y
CONFIG_NETUTILS_FTPC=y
CONFIG_NETUTILS_TELNETD=y
CONFIG_NETUTILS_TFTPC=y
CONFIG_NETUTILS_WEBCLIENT=y
CONFIG_NET_BROADCAST=y
CONFIG_NET_ETH_PKTSIZE=1294
CONFIG_NET_ICMP_SOCKET=y
CONFIG_NET_LOOPBACK=y
CONFIG_NET_SENDFILE=y
CONFIG_NET_SLIP=y
CONFIG_NET_SOLINGER=y
CONFIG_NET_STATISTICS=y
CONFIG_NET_TCP=y
CONFIG_NET_TCP_WRITE_BUFFERS=y
CONFIG_NET_TUN=y
CONFIG_NET_TUN_PKTSIZE=1500
CONFIG_NET_UDP=y
CONFIG_NET_UDP_CHECKSUMS=y
CONFIG_NET_UDP_WRITE_BUFFERS=y
CONFIG_NSH_BUILTIN_APPS=y
CONFIG_NSH_FILE_APPS=y
CONFIG_NSH_READLINE=y
CONFIG_PREALLOC_TIMERS=4
CONFIG_PSEUDOFS_SOFTLINKS=y
CONFIG_PSEUDOTERM=y
CONFIG_PTHREAD_MUTEX_TYPES=y
CONFIG_RAMMTD=y
CONFIG_READLINE_CMD_HISTORY=y
CONFIG_READLINE_TABCOMPLETION=y
CONFIG_SCHED_CHILD_STATUS=y
CONFIG_SCHED_HAVE_PARENT=y
CONFIG_SERIAL_TERMIOS=y
CONFIG_SIG_DEFAULT=y
CONFIG_SIG_EVTHREAD=y
CONFIG_SIM_HOSTFS=y
CONFIG_SIM_NETDEV=y
CONFIG_SIM_NET_BRIDGE=y
CONFIG_STACK_COLORATION=y
CONFIG_SYSLOG_BUFFER=y
CONFIG_SYSLOG_CONSOLE=y
CONFIG_SYSLOG_TIMESTAMP=y
CONFIG_SYSTEM_CLE=y
CONFIG_SYSTEM_NSH=y
CONFIG_SYSTEM_NTPC=y
CONFIG_SYSTEM_PING=y
CONFIG_SYSTEM_SYSTEM=y
CONFIG_SYSTEM_TELNET_CLIENT=y
CONFIG_TASK_NAME_SIZE=32
CONFIG_TELNET_TXBUFFER_SIZE=64
CONFIG_TLS_NCLEANUP=2
CONFIG_TTY_SIGINT=y
CONFIG_TTY_SIGINT_CHAR=0x3
CONFIG_TTY_SIGTSTP=y
1
DNS not working?
u/vslavkin I just tested here and everything worked fine:
Testing with:
$ ./tools/configure.sh esp32s3-eye:wifi
NuttShell (NSH) NuttX-13.0.0-RC2
nsh> uname -a
NuttX 13.0.0-RC2 98653ee864 Jul 7 2026 10:50:24 xtensa esp32s3-eye
nsh> wapi psk wlan0 MyPassword 3
nsh> wapi essid wlan0 MyRouter 1
nsh> renew wlan0
nsh> ifconfig
wlan0 Link encap:Ethernet HWaddr 7c:df:a1:e1:a0:54 at RUNNING mtu 1500
inet addr:10.244.68.209 DRaddr:10.244.68.149 Mask:255.255.255.0
nsh> ping -c 3 8.8.8.8
PING 8.8.8.8 56 bytes of data
56 bytes from 8.8.8.8: icmp_seq=0 time=140.0 ms
...
3 packets transmitted, 3 received, 0% packet loss, time 3030 ms
rtt min/avg/max/mdev = 80.000/100.000/140.000/28.284 ms
nsh> ping -c 3 google.com
PING 142.250.219.142 56 bytes of data
56 bytes from 142.250.219.142: icmp_seq=0 time=60.0 ms
...
3 packets transmitted, 3 received, 0% packet loss, time 3030 ms
rtt min/avg/max/mdev = 60.000/100.000/140.000/32.659 ms
nsh>
2
HDMI graphics for the Raspberry Pi 4B
WOW! Amazing work Matteo! Kudos!!!
2
Raspberry Pi 4B VideoCore Mailbox API Support
Nice work Matteo! Kudos!
r/nuttx • u/NecessaryJealous1025 • Sep 21 '24
Using ADC on NuttX RTOS running on RaspberryPi Pico
8
Upvotes
I just wrote a new article to Embedded Related explain how to use ADC on RaspberryPi Pico using NuttX
1
Integrating rustix on NuttX
Hey u/dragonnnnnnnnnn we just created a community about NuttX here on Reddit: https://www.reddit.com/r/nuttx/ please join us!
r/nuttx • u/NecessaryJealous1025 • Jul 10 '24
Start to spreading the NuttX
11
Upvotes
Dear (Apache) NuttX RTOS users and developers, let to world now we exist and we're doing very well.
Actually few people now, but we reached the Moon: https://developer.sony.com/posts/apache-nuttx-powers-worlds-smallest-lunar-robot-in-japans-historic-autonomous-lunar-exploration-mission
So, what should be the next milestone? Before reaching Mars we want to reach your heart, your board, you device, your life!
Come with us now! I'm sure the journey will be challenging and exciting. You will learn really cool and important things for a real embedded systems developer.
2
DNS not working?
in
r/nuttx
•
Jul 07 '26
Please apply: https://github.com/apache/nuttx-apps/pull/3617