portmacro.h file error and creating my own app using c compiler

[WazaAbdulkadir]

I want to implement my own application. I have created a source code with necessary header files to blink led0.

I need to compile for rv32 architecture. For this i think using the necessary portmacro.h file will solve my problem.

I have implemented both of portmacro header files available in core-v-mcu cli-test repository: 1- link1 2-link2

For the first link it gave this error: #error Assembler did not define __riscv_xlen

For second one I couldn't find the necessity "intrinsics.h" file.

I think I need to run the c code for riscv architecture, but when i run it it automaticaly runs it for x86 arc.

What do you recommend for risc-v toolchain?

I am dropping two different links:

link1

link2

I know core-v-mcu is compatible with riscv32ımc. So it should be good with both of these right?

I am planning to create a bin file and load it using serialPort.py. Is this possible ?

[jeremybennett]

Hi @WazaAbdulkadir

Not sure where you are getting your toolchains. You can download pre-compiled RISC-V and CORE-V tool chains here. Just checked the macros with the latest CORE-V tool chain and __riscv_xlen is there. Here is how you dump out all the macros with "riscv" in the name from GCC.

$ riscv32-corev-elf-gcc -march=rv32imac -mabi=ilp32 -E -dM - < /dev/null | grep -i riscv
#define __riscv 1
#define __riscv_atomic 1
#define __riscv_float_abi_soft 1
#define __riscv_cmodel_medlow 1
#define __riscv_mul 1
#define __riscv_muldiv 1
#define __riscv_xlen 32
#define __riscv_m 2000000
#define __riscv_a 2001000
#define __riscv_c 2000000
#define __riscv_i 2001000
#define __riscv_compressed 1
#define __riscv_arch_test 1
#define __riscv_div 1

HTH

[MikeOpenHWGroup]

Hi @WazaAbdulkadir, thanks for your issue. Please respond to this issue to confirm (or not) that the advice from @jeremybennett worked for you. If so, please close this issue.

There are a couple of other resources that you may or may not be aware of:

• core-v-mcu-cli-test is a test-program environment for the CORE-V-MCU running on freeRTOS.
• The User Manual for the CORE-V-MCU on ReadTheDocs (link).

You will note that the cli-test is complete, at least in the sense that it provides a framework to exercise the MCU. The Quick Start Guide will get you blinking an LED in a few minutes. We are always open to new contributions. The MCU User Manual is less mature and in active development. Questions about, and/or contributions to, the User Manual most welcome.