Hi,

I would like to run small home-made algorithms of languages other than c on the HERO platform.
Is offloading to bigPULP only possible with OpenMP or are other APIs implemented?

Thanks.

Hi ,
I am trying  C to hex conversion for a simple (addition) program. My disassembly code is as follows:

Hello,

yesterday I had an error while executing the ./update-ips command.

Hello,

I am new to RISC-V and PULPissimo. So far, using the following Makefile, I have been able to generate C based test cases for verifying general C commands:

PULP_APP = test
PULP_APP_FC_SRCS = test.c
PULP_APP_HOST_SRCS = test.c

PULP_CFLAGS = -O3 -g
include $(PULP_SDK_HOME)/install/rules/pulp_rt.mk


When I am trying to add basic asm code as inline assembly in the C test, it provides error on those specific commands.

I added the following code in the test.c file:

asm( "mov r0, r0\n\t" 
     "mov r0, r0\n\t" 
     "mov r0, r0\n\t" 
     "mov r0, r0" );

I received the following errors:

test.c: Assembler messages:
test.c:15: Error: unrecognized opcode mov r0,r0'
test.c:16: Error: unrecognized opcodemov r0,r0'
test.c:17: Error: unrecognized opcode mov r0,r0'
test.c:18: Error: unrecognized opcodemov r0,r0'

Is there a simple way of adding inline assembly in C test cases, and verifying for example load and store instructions, or more instruction types? The compiler is able to run test.c file using the above Makefile method and I was hoping to keep that constant and work it around the inline assembly in a simple way.

root@tresa-Inspiron-5567:~/pulpino/sw/build1# make helloworld
[  0%] Built target bench
[  0%] Building C object CMakeFiles/crt0.dir/ref/crt0.riscv.S.o
/root/pulpino/sw/ref/crt0.riscv.S:17:3: error: expected identifier or '(' before '.' token
   .section .text
   ^
/root/pulpino/sw/ref/crt0.riscv.S:84:3: error: unknown type name 'addi'
   addi x10, x0, 0
   ^
/root/pulpino/sw/ref/crt0.riscv.S:84:17: error: expected identifier or '(' before numeric constant
   addi x10, x0, 0
                 ^
/root/pulpino/sw/ref/crt0.riscv.S:89:3: error: unknown type name 'mv'
   mv a0, s0
   ^
/root/pulpino/sw/ref/crt0.riscv.S:91:3: error: expected '=', ',', ';', 'asm' or '__attribute__' before 'jal'
   jal  x1, exit
   ^
/root/pulpino/sw/ref/crt0.riscv.S:254:5: error: invalid preprocessing directive #These
   # These don't have to do anything since we use init_array/fini_array.
     ^
/root/pulpino/sw/ref/crt0.riscv.S:254:14: warning: missing terminating ' character
   # These don't have to do anything since we use init_array/fini_array.
              ^
/root/pulpino/sw/ref/crt0.riscv.S:265:3: error: expected identifier or '(' before '.' token
   .org 0x00
   ^
CMakeFiles/crt0.dir/build.make:81: recipe for target 'CMakeFiles/crt0.dir/ref/crt0.riscv.S.o' failed
make[3]: *** [CMakeFiles/crt0.dir/ref/crt0.riscv.S.o] Error 1
CMakeFiles/Makefile2:3980: recipe for target 'CMakeFiles/crt0.dir/all' failed
make[2]: *** [CMakeFiles/crt0.dir/all] Error 2
CMakeFiles/Makefile2:5086: recipe for target 'apps/helloworld/CMakeFiles/helloworld.dir/rule' failed
make[1]: *** [apps/helloworld/CMakeFiles/helloworld.dir/rule] Error 2
Makefile:720: recipe for target 'helloworld' failed
make: *** [helloworld] Error 2



Got this error while running helloworld.
Kindly look into this error and help me out.
Thanks in advance!

Hello everyone

The Pulpissimo page on GitHub says:

"At the moment the following boards are supported:

  Digilent Genesys2
  Xilinx ZCU104
  Xilinx ZCU102
  Digilent Nexys Video
  ZedBoard"

The question is: which one is better to start working with Pulpissimo? Is there any difference between them? Is there a "easier" board?

Thanks

I downloaded pulp-riscv-gnu-toolchain and did installation(PULP). When i try to compile a program using riscv32-unknown-elf-gcc, I get the following error

/opt/riscv/lib/gcc/riscv32-unknown-elf/7.1.1/../../../../riscv32-unknown-elf/bin/ld: cannot open linker script file riscv.ld: No such file or directory

collect2: error: ld returned 1 exit status

Hello,

I'm very interested by the HERO platform on the ZC706 FPGA board. I tried to modify bigpulp by defining 2 clusters of 3 cores each. To do this, I changed the number of clusters and cores in the bigpulp/fe/rtl/includes/pulp_soc_defines.sv file and the hero_sdk/pulp_sdk/pulp_configs/configs/systems/hero-z-7045.json file.

To generate the bitstream, I followed the steps described in this link https://github.com/pulp-platform/bigpulp. And to generate the SDK, I followed the steps described in this link https://pulp-platform.org/hero/doc/software/.

However, I was not able to run the "hero-openmp-examples" programs. In the case of the mm-large program, matrix multiplication is correctly executed on ARM, but for the part to be executed on bigPulp it is frozen.

Did I modify the right files for the bigPULP part and the HERO-SDK part?
Otherwise do you have any idea what the problem is?



Thanks in advance.

Hi,
I am trying to transmit a 32 bit data from memory to UART through Udma. The problem I am facing is udma transmit bus carry only 1byte data. The code I had written to load 32 bit data to memory is:

Hi
Currently I am writing a test bench for transferring a 32 bit data from one location to another memory location in RISCV  pulp. I am bit confused how to set the address of DMA transmit bus and the procedure for transferring the data. Can you help me regarding this

code I wrote for transferring data without DMA is

li x15,64
LUI x14, 0x1c000 // Source address selected is 0x1c000001
sw x15, 001(x14)
LUI x13, 0x1c010  // destination address is 0x1c01000
sw x14, 0(x13)