I am experimenting with some Old Legacy Spartan 3 , 6 and Virtex 5 Series Kits as a part of research work. I am currently designing a microblaze processor systems. Is it possible that without using RS232 cable interface I can view the results on Console like a normal C/C++ application. ?
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Is there any way I can apply stimulus signals on my FPGA board from my PC itself, and view the output of hardware in any simulation software? I am working on Spartan 3A development board provided by numato labs (elbert V2)
https://numato.com/product/elbert-v2-spartan-3a-fpga-development-board/
It is a relatively small board with few peripherals, so the number of LEDs for output and push-buttons for input is quite less.
I am a newbie to FPGAs but have sound knowledge on verilog. Please help me out with this
Thanks
The board does not have an physical interface intended for use as wired connection/communications (no ethernet, no usb, no uart, etc) to a PC.
These are the easiest ways I can think of for an 'elbert V2' board to communicate with a PC:
The board has a micro SD connector to access files on the micro SD interface. Those files could be accessed by a Verilog simulation.
A USB to UART adapter could be used with the boards GPIO interface.
Here is an example:
https://www.amazon.com/3-3V-UART-Serial-Cable-TTL-232R-3V3/dp/B078GMQPLT
The cable provides 3.3V TTL and the board has 3.3V gpio ports so that is encouraging. Probably just need to connect 3 wires tx/rx/ground.
You would need to design or find UART RTL IP for the FPGA.
Designing the UART would be a good intermediate level Verilog project.
Use procom or similar software on the PC to communicate with the USB/UART com port on the PC and a file. Verilog simulations can access the data in the file.
I am working on an esp project and compiled my code by using the esp32s2 toolchain and created a binary that ready to run on a real device. But I don't have a real device to test my binary. Is there any simulator to simulate the ESP32-S2 chip or the ESP32 chip?
You can use Wokwi to simulate the ESP32, and soon also the ESP32-S2.The Wokwi is a free online simulator for electronics, and it runs in your browser. This means you can simulate code that interacts with 3rd-party sensors, display modules, LEDs and many other common parts. There's also initial support for WiFi simulation, and the developers are working on extending it to support connecting to any host on the internet (e.g. HTTPS/MQTT)
Simulator Examples
Arduino Examples
Blink
Seven segment counter
APA102 Color Cycles (TinyPico Board)
WiFi Scanning
MicroPython Examples
SSD1306 Example
NeoPixels
WiFi Scanning
ESP-IDF Examples
The following examples use the ESP-IDF functions. They are compiled using Arduino ESP32 Core:
Blink using FreeRTOS API
Binary LED counter using FreeRTOS tasks
GPIO button input + interrupts
https://docs.wokwi.com/guides/esp32
You can try QEMU from https://github.com/espressif/qemu or https://github.com/Ebiroll/qemu_esp32
Not sure if they are supporting ESP32-S2, but it seems to be working with ESP32.
I would like to undertake a low level approach to transferring data from an FPGA to the STM32MP1 processor, I'm currently using an FTDI USB device which is an extra IC consuming power on my battery power device.
I would initialise and read data from the QUADSPI peripheral on the STM32 in dual bank mode.
I have been reading into kernel modules to gain register level access however they all seem to stop at Hello World or best toggling GPIO pins. I can't find any solid documentation for what I'm trying to do.
What is the best way to initialise a peripheral that has no Linux driver written for it?
I have just finished a project using an Arduino Micro dev board and want to move to a standalone ATmega32.
I need to run this at 3.3V and I dont want to go down the overclocking road so I have an 8MHz crystal to put on it.
I still want to be able to upload sketches via USB and the Arduino compiler so I gather I need to burn a different bootloader.
For this purpose I have purchased a USBASP programmer.
I am slightly unsure of what to do next - everything I can find on the topic either relates to the ATmega328 or to burning bootloaders using another Arduino.
I have worked out that I need to modify boards.txt to point to the correct bootloader....but which is the correct bootloader for ATmega32 at 8Mhz?
Also do I need to change any fuses?
Thanks
I think you're a bit out of luck.
The ATmega doesn't have hardware USB, so I assume the bootloader is using V-USB to implement USB. That stack, being a software implementation of USB's high-speed signalling, requires at least a 12 MHz clock (higher is better).
I don't think you can run V-USB using only the internal 8 MHz oscillator.
According to the OP comments the micro is indeed an Atmega32u4, not an Atmega32 (#OP: please fix the question to match this).
Since it has onboard USB, you can use a pre-existing bootloader like the sparkfun one:
https://www.sparkfun.com/products/12587
Here you have the link to one of their products, the Arduino pro micro 3.3V (which runs at 8MHz). You can add the sparkfun arduino boards repository to your IDE and then just use the board specification for their pro micro 3.3V do upload the correct bootloader and to program it through the USB just like the usual Arduino Micro.
hi i have a fpga chip having cortex-m3 as hard-ip with it,i installed uclinux on cortex-m3 .
i wrote a c code which turns on 8 leds according to the number i give (it runs good on uclinux ) but now i want to give input number from c code on uclinux and transfer it to fpga ,then fpga will process on it and will glow the Leds,but i havn't find a way to do that(communication between uclinux and fpga).
for e.g. i can communicate with pendrive using uclinux cause i have the driver for it or i can write for any other device but how to show fpga circuit as device to uclinux,
one way i thought was as uclinux can access any address of cortex-m3 using pointers similarly i can do it for fpga ,but i don't understand how a digital circuit on fpga can have addresses.