Today I started working iMXRT1050-EVKB once again because I received a request from a company that needs USB OTG2 working (seems like only USB OTG1 is supported in mainline).
For my surprise everything is working out of the box on NuttX mainline to get NuttX running on this board.
Basically all I need to do is confirm that my board jumpers are mapped correctly: J1 with the jumper in the pins 5-6 (P5V_SDA_S) and SW7 configure this way: 1-OFF, 2-ON, 3-ON, 4-OFF. And connect a microUSB cable to my computer and J28 in the board.
Configure and compile NuttX this way:
$ ./tools/configure.sh imxrt1050-evk:nsh
$ make -j
LD: nuttx
Memory region Used Size Region Size %age Used
flash: 91580 B 64 MB 0.14%
sram: 6644 B 512 KB 1.27%
itcm: 0 B 128 KB 0.00%
dtcm: 0 B 128 KB 0.00%
CP: nuttx.hexNow just drop this nuttx.hex file in the virtual disk that was created in your computer (RT1050-EVK)
Reset the board and use minicom with this /dev/ttyACM0 interface configured to 115200 8N1, you should get access to the NSH terminal:
nsh> uname -a
NuttX 12.8.0 c2309b6e03-dirty Apr 12 2025 11:38:19 arm imxrt1050-evk
nsh> free
total used free maxused maxfree nused nfree name
253448 5728 247720 6088 247720 19 1 Umem
nsh> ?
help usage: help [-v] [<cmd>]
. cp exit ls rm uname
[ cmp expr mkdir rmdir umount
? dirname false mkrd set unset
alias dd fdinfo mount sleep uptime
unalias df free mv source usleep
basename dmesg help pidof test watch
break echo hexdump printf time xd
cat env kill ps true
cd exec pkill pwd truncate
Builtin Apps:
nsh sh
nsh>