incubator-nuttx

History

Xiang Xiao d7f96003cf Don't include debug.h from public header file Signed-off-by: Xiang Xiao <xiaoxiang@xiaomi.com>		2021-06-01 06:42:02 +09:00
..
configs/nsh	fs: delete NFILE_DESCRIPTORS for allocating dynamically	2021-03-17 06:46:42 -07:00
include	…
scripts	litex: nsh working	2021-02-13 15:24:28 -08:00
src	Don't include debug.h from public header file	2021-06-01 06:42:02 +09:00
Kconfig	…
README.txt	Fix git clone repository	2021-01-20 22:35:59 +09:00

README.txt

1. Download and install toolchain

  $ curl https://static.dev.sifive.com/dev-tools/riscv64-unknown-elf-gcc-8.3.0-2019.08.0-x86_64-linux-ubuntu14.tar.gz

2. Follow instruction on https://github.com/enjoy-digital/litex to build the vexriscv softcore fpga gateware
   and flash to arty_a7 board

3. Configure and build NuttX

  $ mkdir ./nuttx; cd ./nuttx
  $ git clone https://github.com/apache/incubator-nuttx.git
  $ git clone https://github.com/apache/incubator-nuttx-apps.git
  $ cd nuttx
  $ make distclean
  $ ./tools/configure.sh arty_a7:nsh
  $ make V=1

4. Setup tftp server on your laptop, copy nuttx.bin to your tftpboot directory and change its name to boot.bin

5. Setup the wire connection(uart and tftp) between your board and laptop

6. Run  $ minicom -b 1000000 /dev/ttyUSB1 (the default baudrate on litex vexriscv is 1e6)
   when you see the bios prompt "litex>", type "netboot" and enter soon comes the nsh prompt

7. TODO

  Support GPIO/SPI/I2C/RTC/WDT/PWM
  Support RISC-V User mode