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.

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?

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

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 

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..

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

Hello,

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

Thanks.

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

Dear PULP user / PULP team member,

For a while now, PULP has been gaining momentum and as a result, we decided to start a forum. This has been done with the intention to increase the visibility of PULP's support. Since the support has been currently provided via pulp-info and dedicated GitHub pages, it is not easily searchable. Another reason why we decided to start a forum is the intention to build a community around PULP and possibly promote frequently engaged users to moderators. Based on the number of support requests received via pulp-info we decided not to create dedicated subforums, but we do not exclude that this might happen in the future.

PULP users: If you have a technical question related to PULP, please register and start a thread. If you enabled email notifications during the registration process, you will be notified once a PULP team member replies. You may also subscribe to individual threads of your interest at the bottom of the page.

PULP team members: After you have registered, please subscribe to The PULP General Question forum via the button in the upper part of the page. Senior PULP team members will be promoted to Moderators upon registration. If you enabled email notifications during the registration process, you will be notified by email whenever someone starts a new thread. If you replied to a post, you will also (by default) receive an email notification whenever there is a continuation to the thread.

Contact the admin in case you have questions or suggestions.
Your admin.