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[Pulpissimo]where are the...
Forum: PULP General questions
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7 hours ago
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UART
Forum: PULP General questions
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Yesterday, 09:12 AM
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PWM peripheral integratio...
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Forum: PULP General questions
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12-10-2019, 01:50 PM
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UART test case
Forum: PULP General questions
Last Post: mahalakshmir.ma
12-06-2019, 10:20 AM
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questasim test case faile...
Forum: PULP General questions
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12-06-2019, 04:03 AM
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Problem installing PULP-S...
Forum: PULP General questions
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waves
Forum: PULP General questions
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11-29-2019, 10:40 AM
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HEX Files
Forum: PULP General questions
Last Post: mahalakshmir.ma
11-28-2019, 04:02 AM
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GDB Debugging with JTAG o...
Forum: PULP General questions
Last Post: jthoma
11-27-2019, 02:12 PM
» Replies: 4
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  PULP vs ARM
Posted by: Mixermachine - 12-19-2018, 01:31 PM - Forum: PULP General questions - Replies (2)

Hello there,

I currently collect information for my bachelor thesis and want to compare popular RISC-V implementations.
You have a nice graphic 
[Image: pulp_family4.png]

Does there exist a documentation or has somebody knowledge about how the RISC-V cores match to for example ARM cores.
For example:

RI5CY <-> ARM cortex M0
or
PULPino <-> ARM cortex M0

Greetings from Munich,

Aaron

Edit:
The people over at Si-Five compare their cores here for example https://www.sifive.com/core-designer (scroll to the bottom)

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  Compilation error
Posted by: kkarthik976 - 12-18-2018, 05:19 AM - Forum: PULP General questions - Replies (1)

I am getting the error at the time of compilation when iI use -march=RV64.
Even i tried with the rv32 or rv64 also.

Regards
Karthik

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Brick PULPino on Vivado 2018.1
Posted by: Muhammad Usman - 12-14-2018, 03:48 PM - Forum: PULP General questions - Replies (1)

I have been trying to migrate PULPino project to Vivado 2018.1 workflow. I have been successfully able to compile hardware-software project to obtain files in sd_image. Setting up and booting the SD Card sets up Programmable Logic (as indicated by blue light). Linux is NOT booting. Please help me identify and fix the problem.

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  hero-sdk build process
Posted by: dave.mcewan - 12-12-2018, 07:22 PM - Forum: PULP General questions - Replies (5)

Hello,

I'm building the hero-sdk as per the github instructions but it's failing at the pulp-sdk stage.
Actually I'm trying on 2 systems, Debian 9.2 and Ubuntu 16.04.
Both have the same result and symptoms.
It looks like some files which should be copied from ./pulp-sdk/json-tools to ./pulp-sdk/build/sdk/json-tools are missing. I.E there's no Makefile so make doesn't know what to do.
Anybody on here have an idea what's going wrong?



Code:
$ ./hero-z-7045-builder -p
Configuring HERO SDK at: /home/user0/hero-sdk
Your PATH is correctly set. Skipping installation.
Your LD_LIBRARY_PATH is correctly set. Skipping installation.
Warning: Cannot set compiler and linker flags for libgomp plugin and mkoffload. Missing environment variables PULP_SDK_INSTALL and/or HERO_SUPPORT_DIR!
Your PATH is correctly set. Skipping installation.
Your LD_LIBRARY_PATH is correctly set. Skipping installation.
Configuring HERO SDK at: /home/user0/hero-sdk
Your PATH is correctly set. Skipping installation.
Your PATH is correctly set. Skipping installation.
Your LD_LIBRARY_PATH is correctly set. Skipping installation.
Your LD_LIBRARY_PATH is correctly set. Skipping installation.
Warning: Cannot set compiler and linker flags for libgomp plugin and mkoffload. Missing environment variables PULP_SDK_INSTALL and/or HERO_SUPPORT_DIR!
Your PATH is correctly set. Skipping installation.
Your LD_LIBRARY_PATH is correctly set. Skipping installation.
Configuring Pulp project at /home/user0/hero-sdk/pulp-sdk

sdk:json-tools:build: make all install
#### Building in /home/user0/hero-sdk/pulp-sdk/build/sdk/json-tools
#### Release type is RelWithDebInfo
#### Installing to /home/user0/hero-sdk/pulp-sdk/pkg/sdk/dev/install/ws
( cd /home/user0/hero-sdk/pulp-sdk/build/sdk/json-tools ; make all  VERBOSE=0 )
make[1]: Entering directory '/home/user0/hero-sdk/pulp-sdk/build/sdk/json-tools'
make[1]: *** No rule to make target 'all'. Stop.
make[1]: Leaving directory '/home/user0/hero-sdk/pulp-sdk/build/sdk/json-tools'
Makefile:46: recipe for target 'all' failed
make: *** [all] Error 2
Reached EOF with exit status 2
FATAL ERROR: the command 'build' has failed


And on STDERR:

Code:
No LSB modules are available.
No LSB modules are available.

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  About Bug Fix for RI5CY Core
Posted by: Dongsheng Wu - 12-11-2018, 02:43 AM - Forum: PULP General questions - Replies (2)

Hi,

I noticed that Google IPU team reported serveral bugs about RI5CY core in the RISC-V Workshop this MAY. I am wondering whether PULP team has yet fixed them in the Github release.

Hope for your response.

----- Details about the bugs -----
Bugs found in:
○ Multiplier
○ LSU

Bugs reported in page 12 of  Google's Reports on the evaluation of RI5CY
RISC-V Workshop website: RISC-V Workshop in Barcelona Proceedings
RTL Core for RI5CY Github release

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  UVM testbench for PULPINO
Posted by: mnafea - 12-10-2018, 02:57 PM - Forum: PULP General questions - Replies (3)

I'd like to ask is there any UVM environment created for PULPINO SOC, or even for one of the following cores:
  1- RI5CY
  2- Zero-riscy

Thanks  Smile

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  I2C on Pulpissimo
Posted by: magseet - 12-03-2018, 09:41 PM - Forum: PULP General questions - Replies (9)

Hi,
I'm trying to use the I2C controller to communicate with my own I2C peripheral. First, I was trying to build the tb by including the I2C EEPROM (I've followed the README instructions). The problem is that, when using the example program for I2C, the RTL simulation gets stuck at the first write operation. Moreover, SDA and SCL signals never toggle during RTL simulation.

Do you have an example program I can use to make I2C work? I guess I need to make some initialization..

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  PULP Memories Address Maps
Posted by: Bassma - 11-24-2018, 04:26 PM - Forum: PULP General questions - Replies (1)

Hi, 

I'm trying to preload the program in L2 cache but i'm unable to trace which addresses goes into which memory
so far what i got tracing is the hello world example:

/tb_pulp/i_dut/soc_domain_i/pulp_soc_i/l2_ram_i/bank_sram24k_scm8k_pri0_i/cut_0/MEM
addresses in stimuli file from 1C000000 - 1C001030 go in this memory

/tb_pulp/i_dut/soc_domain_i/pulp_soc_i/l2_ram_i/bank_sram_pri1_i/MEM
 address in stimuli file from 1C008000 - 1C00AF80 go in this memory

but i have no idea where the rest goes. 
Question 1: is the mapping mentioned anywhere in the hdl files?
Question 2: I've not been able to build the documents in ipstools due to python libraries errors is there a pdf or a latex version i can get anywhere else online?

Thanks,
Bassma

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  Download program with JTAG interface
Posted by: wangzp - 11-19-2018, 06:44 AM - Forum: PULP General questions - Replies (1)

Hello,

I have build a FPGA project of pulpissimo. How do I download the program to my CPU with JTAG interface?

Thanks.

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  Linux running on the ZYNQ
Posted by: soyedtuhin - 11-09-2018, 01:00 PM - Forum: PULP General questions - Replies (1)

hello,

I am trying to run Helloworld on zedboard.

Configuration: Ubuntu 18.04.LTS, Vivado 15.01, ri5cy_gnu_toolchain compiled for RISCY core. Uart cable connected, transferred spiload, spi_stim.txt to root partiton.


When I try to boot from sd card with Putty, it goes to

Code:
Welcome to Buildroot
buildroot login:
 It does not goes to he expected "zynq>"

If I login with root and try to run Helloworld application
I get the following error
Code:
./spiload -t20 spi_stim.txt
Device has been reset
Sending block addr 00000000 with 256 entries
**Device not found**
: No such file or directory
*** **Error in `./spiload': free(): invalid pointer: 0x0000a2c0** ***
======= Backtrace: =========
/lib/libc.so.6(+0x6818c)[0x36e1f18c]
/lib/libc.so.6(+0x6de38)[0x36e24e38]
/lib/libc.so.6(+0x6e7c4)[0x36e257c4]
./spiload[0x956c]
./spiload[0x9acc]
./spiload[0x96dc]
/lib/libc.so.6(__libc_start_main+0x114)[0x36dcd4bc]
======= Memory map: ========
00008000-0000b000 r-xp 00000000 b3:02 18         /spiload
00012000-00013000 rw-p 00002000 b3:02 18         /spiload
00013000-00034000 rw-p 00000000 00:00 0          [heap]
36db7000-36ee0000 r-xp 00000000 b3:02 781847     /lib/libc-2.20.so
36ee0000-36ee7000 ---p 00129000 b3:02 781847     /lib/libc-2.20.so
36ee7000-36ee9000 r--p 00128000 b3:02 781847     /lib/libc-2.20.so
36ee9000-36eea000 rw-p 0012a000 b3:02 781847     /lib/libc-2.20.so
36eea000-36eed000 rw-p 00000000 00:00 0
36eed000-36f02000 r-xp 00000000 b3:02 781843     /lib/libpthread-2.20.so
36f02000-36f09000 ---p 00015000 b3:02 781843     /lib/libpthread-2.20.so
36f09000-36f0a000 r--p 00014000 b3:02 781843     /lib/libpthread-2.20.so
36f0a000-36f0b000 rw-p 00015000 b3:02 781843     /lib/libpthread-2.20.so
36f0b000-36f0d000 rw-p 00000000 00:00 0
36f0d000-36f2a000 r-xp 00000000 b3:02 781846     /lib/libgcc_s.so.1
36f2a000-36f31000 ---p 0001d000 b3:02 781846     /lib/libgcc_s.so.1
36f31000-36f32000 rw-p 0001c000 b3:02 781846     /lib/libgcc_s.so.1
36f32000-36f52000 r-xp 00000000 b3:02 781851     /lib/ld-2.20.so
36f54000-36f58000 rw-p 00000000 00:00 0
36f58000-36f59000 rw-p 00000000 00:00 0
36f59000-36f5a000 r--p 0001f000 b3:02 781851     /lib/ld-2.20.so
36f5a000-36f5b000 rw-p 00020000 b3:02 781851     /lib/ld-2.20.so
3ea71000-3eab3000 rw-p 00000000 00:00 0          [stack]
3eed4000-3eed5000 r-xp 00000000 00:00 0          [sigpage]
ffff0000-ffff1000 r-xp 00000000 00:00 0          [vectors]
Aborted


built process attached

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