Hello Roberto and others, Short: we have template NuttX project which is prepared to build broad range of projects against exported NuttX build (remark not tested on Windows yet)
https://github.com/ppisa/nuttx-devel The complete build including NuttX build and export for imxRT Teensy based project is there https://gitlab.com/pikron/projects/imxrt-devel To proceed git clone https://gitlab.com/pikron/projects/imxrt-devel.git cd imxrt-devel/ git submodule update --init cd nuttx make the final executable is imxrt-devel/nuttx/apps-omk/_compiled/bin/start.hex The loading is target specific, example for teensy in with teensy_loader_cli is in load-wrapup But the template should work for broad range of NuttX supported boards and configurations when the conbination is specified during the first invocation NUTTX_CONFIG parameter. The default configuration is equivalent make NUTTX_CONFIG=teensy-4.x:pikron-bb When NuttX is already configured then new invocation even with defined config does not change it. The configuration change requires do full distclean make distclean make NUTTX_CONFIG=xxx If you try, please report success or failure. I do not promise to have time to correct it now, but I would consider what can be done in future. It is known and unfortunate that RISC-V targets are broken. Reason is broken export from NuttX for these targets, even including LD scripts which are not ready for the direct use https://github.com/apache/nuttx/issues/6082 I have achieved successful ESP32C3 build after ldscripts manual preprocessing and missing Make.defs corrections. The example requires ROMFS enabled in config and set CONFIG_NSH_ROMFSMOUNTPT and CONFIG_NSH_ROMFSDEVNO. This allows to setup directly content of the /etc in the project and select which registered applications should be run after boot imxrt-devel/nuttx/apps-omk/wrapup/romfs/init.d/rcS More documentation for OMK workflow there https://gitlab.com/pikron/projects/imxrt-devel/-/wikis/omk-manual The full description and background We develop broad range of projects for GNU/Linux, embedded devices without OS (ARM, but in the past H8S, m68k, 8051 etc..), RTEMS and NuttX at company from 1990 and I have transferred lot to the CTU university as well. Around 2003 year, we have worked on OCERA project (CAN drivers, CANopen and NDDS/DDS) and we need to build it for Linux, RT-Linux and sysless and I have come with Ocrea Make System based on my company experience. It has been maintained for some time together with former CTU FEE group but only I take care about it last 8 years. Yet it is used by my colleagues in more companies. There is my local copy of the manual https://gitlab.com/pikron/projects/imxrt-devel/-/wikis/omk-manual I have made it to compile our uLAN project for NuttX including compiled-in or alternatively runtime loadable kernel driver (same core source for Linux, Windows, systemless and NuttX now) in 2019 year. The uLAN RS-485 protocol site there https://ulan.sourceforge.net/ NuttX build specific part there https://sourceforge.net/p/ulan/ulan-top/ci/master/tree/nuttx/ The NuttX driver variant is specific for LPC17xx_40xx targets only. I plan to add SAMv7 support. This is probably of interrest only for niche group there. But there are prepared these generic templates as described before https://github.com/ppisa/nuttx-devel https://gitlab.com/pikron/projects/imxrt-devel The main goal is to allow write portable applications and complete solution which can be build for different systems only by Makefile.rules replacement. For example, our original CAN and CANopen solution can be build for GNU/Linux and has been already successfully tested on NuttX from unmodified source trees only linked into build top level with NuttX version of Makefile.rules https://ortcan.sourceforge.net/ The OMK allowed us to build complete infusion system firmware from same sources for RTEMS and do test builds including GUI and business logic on GNU/Linux. We have used this system to build our motion control systems for broad architectures range of systemless, GNU/Linux, RTEMS systems and I hope to have functional NuttX solution with PXMC too http://pxmc.org/ So I would be happy if some of these project will be usesfull or could serve as inspiration to somebody else. Best wishes, Pavel Pisa ================================================== PiKRON s.r.o. Phone/Fax: +420 284684676 Kankovskeho 1235 Phone: +420 234697622 182 00 Praha 8 WWW: http://www.pikron.com/ Czech Republic e-mail: pik...@pikron.com ==================================================
