43 lines
1.2 KiB
Plaintext
43 lines
1.2 KiB
Plaintext
1. Download and install toolchain and openocd-k210
|
|
|
|
$ curl https://static.dev.sifive.com/dev-tools/riscv64-unknown-elf-gcc-8.3.0-2019.08.0-x86_64-linux-ubuntu14.tar.gz
|
|
$ export PATH=$PATH:/$TOOL_CHAIN_PATH/bin
|
|
|
|
2. Build openocd-k210
|
|
|
|
$ git clone https://github.com/kendryte/openocd-kendryte
|
|
$ cd openocd-kendryte
|
|
$ ./bootstrap & ./configure & make
|
|
|
|
3. Configure and build NuttX
|
|
|
|
$ mkdir ./nuttx; cd ./nuttx
|
|
$ git clone https://github.com/apache/incubator-nuttx.git nuttx
|
|
$ git clone https://github.com/apache/incubator-nuttx-apps.git apps
|
|
$ cd nuttx
|
|
$ make distclean
|
|
$ ./tools/configure.sh maix-bit:nsh
|
|
$ make V=1
|
|
|
|
4. Download and run the nuttx from SRAM (not SPI-Flash)
|
|
|
|
$ picocom -b 115200 /dev/ttyUSB0
|
|
$ sudo ./src/openocd -s ./tcl -f ./tcl/kendryte.cfg -m 0
|
|
$ riscv64-unknown-elf-gdb ./nuttx
|
|
(gdb) target extended-remote :3333
|
|
(gdb) load nuttx
|
|
(gdb) c
|
|
|
|
5. Write nuttx.bin to SPI-Flash
|
|
|
|
$ pip3 install kflash
|
|
$ kflash -p /dev/ttyUSB0 -b 1500000 ./nuttx/nuttx.bin
|
|
|
|
NOTE: The kflash_gui is not recommended because it's unstable
|
|
|
|
6. TODO
|
|
|
|
Support peripherals such as GPIO/SPI/I2C/...
|
|
Support FPU
|
|
Support RISC-V U-mode including memory protection
|