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RISCV_picorv32_fpga
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# RISCV_picorv32_fpga
##building RISC-V from scratch, using Linux or WSL
>sudo apt-get update
>sudo apt-get install autoconf automake autotools-dev curl python3 python3-pip libmpc-dev libmpfr-dev libgmp-dev gawk build-essential bison flex texinfo gperf libtool patchutils bc zlib1g-dev libexpat-dev ninja-build git cmake libglib2.0-dev
>git clone https://github.com/riscv/riscv-gnu-toolchain
>cd riscv-gnu-toolchain/
>mkdir build/
>cd build
>sudo mkdir /opt/riscv32im
>sudo chown $USER /opt/riscv32im
>./configure --with-arch=rv32im --prefix=/opt/riscv32im
>make -j$(nproc)
```html
sudo apt-get update
sudo apt-get install autoconf automake autotools-dev curl python3 python3-pip libmpc-dev libmpfr-dev libgmp-dev gawk build-essential bison flex texinfo gperf libtool patchutils bc zlib1g-dev libexpat-dev ninja-build git cmake libglib2.0-dev
git clone https://github.com/riscv/riscv-gnu-toolchain
cd riscv-gnu-toolchain/
mkdir build/
cd build
sudo mkdir /opt/riscv32im
sudo chown $USER /opt/riscv32im
./configure --with-arch=rv32im --prefix=/opt/riscv32im
make -j$(nproc)
```
# For other architectures or variations of RISC-V
./configure --with-arch=rv32i /opt/riscv32i/ --> for RV32I
./configure --with-arch=rv32ic /opt/riscv32ic/ --> for RV32IC
./configure --with-arch=rv32im /opt/riscv32im/ --> forRV32IM
./configure --with-arch=rv32imc /opt/riscv32imc/--> for RV32IMC
| Command | ISA |
|:---------------------------------------- |:-------- |
|`./configure --with-arch=rv32i --prefix=/opt/riscv32i/ `| `RV32I `|
|`./configure --with-arch=rv32ic --prefix=/opt/riscv32ic/ `| `RV32IC `|
|`./configure --with-arch=rv32im --prefix=/opt/riscv32im/` | `RV32IM `|
|`./configure --with-arch=rv32imc --prefix=/opt/riscv32imc/`| `RV32IMC `|
windows precompiled https://github.com/xpack-dev-tools/riscv-none-elf-gcc-xpack/releases/ for mingw64
other precompiled windows and linux toolchain for riscv https://gnutoolchains.com/risc-v/
## Other Linux and Windows precompiled Toolchains
- https://github.com/xpack-dev-tools/riscv-none-elf-gcc-xpack/releases/ for mingw64
- https://gnutoolchains.com/risc-v/
# Build the firmware
```html
git clone https://gitea.squirrelnut.synology.me:5001/FPGALover/RISCV_picorv32_fpga
cd RISCV_picorv32_fpga/sw
make clean
make firmware/firmware.fpga
cp firmware/Memory.v_toplevel_memory_1_symbol* ../rtl/DE0-NANO
# Now you can compile or synthesize the FPGA harware using Quartus or any other Design tool
```
*Now you can compile or synthesize the FPGA harware using Quartus or any other Design tool*