Hi,
    I want to use the IBEX core with pulpissimo. I was able to run Hello World example with default ri5cy core. I changed the following files by making CORE_TYPE as 1 to get the ibex core configured.

• ./pulpissimo/rtl/pulpissimo/pulpissimo.sv
  
• ./pulpissimo/rtl/pulpissimo/soc_domain.sv
  
• ./pulpissimo/rtl/tb/tb_pulp.sv
  
• ./pulpissimo/pulp_soc/rtl/fc/fc_subsystem.sv
  
• ./pulpissimo/ips/pulp_soc/rtl/pulp_soc/pulp_soc.sv
  
• ./pulpissimo/install/tb_pulp.sv
  

Hi,
   I am currently working with L2 Memories. I notice that even though the size of the stimuli file I have is larger than the total size of L2 private memory (0x1c010000). The compiler does not throw l2 overflowed by ... bytes error. i have not changed the /my-path/pulp-sdk/pkg/sdk/dev/install/rules/pulpissimo/link.ld file. 

This the command the make file of hello example uses to compile my code


/my_path/project/gnu_toolchain/bin/riscv32-unknown-elf-gcc -march=rv32imfcxpulpv2 -mfdiv -D__riscv__ -MMD -MP -o /my_path/pulp-rt-examples/hello/build/pulpissimo/test/test /my_path/pulp-rt-examples/hello/build/pulpissimo/test/fc/test.o /my_path/pulp-rt-examples/hello/build/pulpissimo/test/fc//my_path/pulp-rt-examples/hello/build/pulpissimo/rt_conf.o /my_path/pulp-rt-examples/hello/build/pulpissimo/test/fc//my_path/pulp-rt-examples/hello/build/pulpissimo/rt_pad_conf.o  -nostartfiles -nostdlib -Wl,--gc-sections -L/my_path/untouched/pulpissimo/pulp-sdk/pkg/sdk/dev/install/rules -Tpulpissimo/link.ld -L/my_path/untouched/pulpissimo/pulp-sdk/pkg/sdk/dev/install/lib/pulpissimo -L/my_path/untouched/pulpissimo/pulp-sdk/pkg/sdk/dev/install/lib/pulpissimo/pulpissimo -lrt -lrtio -lrt -lgcc

pulp-run --config-file=pulpissimo@config_file=chips/pulpissimo/pulpissimo.json  --config-opt=platform=rtl --dir=/my_path/pulp-rt-examples/hello/build/pulpissimo --binary=test/test prepare
pulp-run --config-file=pulpissimo@config_file=chips/pulpissimo/pulpissimo.json  --config-opt=platform=rtl --dir=/my_path/pulp-rt-examples/hello/build/pulpissimo --binary=test/test
Launching simulator with command:


I notice the pulp_tap exceeding the maximum address of the L2 memory
 [pulp_tap_if] WRITE32 burst @1c00f800 for        1024 bytes.
# [pulp_tap_if] WRITE32 burst @1c00fc00 for        1024 bytes.
# [pulp_tap_if] WRITE32 burst @1c010000 for        1024 bytes.
# [pulp_tap_if] WRITE32 burst @1c010400 for        1024 bytes.
# [pulp_tap_if] WRITE32 burst @1c010800 for        1024 bytes.
# [pulp_tap_if] WRITE32 burst @1c010c00 for        1024 bytes.
# [pulp_tap_if] WRITE32 burst @1c011000 for        1024 bytes.
# [pulp_tap_if] WRITE32 burst @1c011400 for        1024 bytes.
# [pulp_tap_if] WRITE32 burst @1c011800 for        1024 bytes.
# [pulp_tap_if] WRITE32 burst @1c011c00 for        1024 bytes.



Any idea why the pulp_gnu_toolchain did not throw any error. does the pulp_gnu_toolchain should be rebuilt because i am playing by extending the Private memory sizes although the above error was produced with no change in the pulpissimo or pulp-sdk code

Hello,

I am trying to compile GPIO test without pulp specific instructions.
https://github.com/pulp-platform/pulp-rt...put/test.c

I modified the make file as follows:

Could anyone help me clarify whether the memory is single-port or dual-port? I didn't find the information in the documentation. Thanks in advance!

Zorro

Hey everyone 

I am trying to set up an I2C on my NEXYS 4 board without using the rt api from the sdk.
Now I think I have understood the way how the uDMA works an I am also able to transmitt something over the I2C (clock is there and a signal on the SDA is there too), but this are 
not the data I wanted to transfer.

My main problem now is, I am not able to write the address of my TX buffer to the TX_SADDR register. In the manual I can see that the TX_SADDR should be a read/write register but writing to it seams not be possible.
Does someone know what the problem could be or is there maybe an example how to setup peripherals connected to the uDMA without the help of the rt api?

Would really appreciate your help.

Thank you very much and have a nice day.

Hello, We are trying to design a ultra low-power microcontroller for IoT applications in a 0.18um CMOS technology and I am trying to decide to choose the PULPino or PULPismo platform.
PULPino seems like the more matured platform but PULPismo seems to be the replacement for PULPino.
Our core strength is analog so we want a platform which has a well-supported toolchain, etc.
So any advice on this topic will be greatly appreciated.

we are facing a problem in full duplex communication in riscv pulpissimo  ,i.e. we can not start  reception after transmission using the spansion s25fs256s spi module . Could you please give some ideas regarding that. Or could you please give us a document regarding that

Hi,
Are there any documents or codes available to write Interrupt Service Routine for Pulpissimo in C language?

Scanf, gets, getchar etc. are showing undefined reference error while compiling a program using pulp-sdk. Is there anyway to get input from console?

Hi,
I am trying to simulate CV32E40P core. In example_tb file in core folder there is a make file. It is showing error


vlib-"10.7b" work
/bin/sh: 1: vlib-10.7b: not found
make: *** [Makefile:87: .lib-rtl] Error 127

I read in the documentation that there is a separate repository for verification. I have run the makefile in core-v-verif/cv32/sim/core. i was able to run hello world program. But i dont why in CV32E40P core it was not running.

I wanted to explore floating point unit in CV32E40P core. Can you please say how to simulate with system verilog files

I am not able to understand how to give input to the core. Please help me

Thanks in advance