CI/CD hardware in loop (HIL)

Release note

• Add Jenkinsfile for implementing CI/CD with hardware in loop
• Implement llseek system call in driver
• Add helper scripts for load/unload device driver
• Add helper scripts for programming bitfile via openocd
• Implement testing application which do read/write to /dev/epci-mem
• Add helper scripts for calling multiple test application

Cleanup

Changes

• Move char device related functions to epci-mem.c file. Which make code more readable.
• Fix warning for mix declaration and code execution
• Fix read/write operation. Now offset cab addressed in each call

LEDs

Note

• All 3 LEDs of board are registered into LED class device
• epci-led.c is created for handling all LED related jobs
• hardware accelerated blink is not supported yet. Only PWM and On/Off is implemented via regiters
• each peripheral memory mapped offset is described via epci_board_info in epci-core.c

Firmware version

Notes

• Firmware version (Now 1.03 ) is added to PCI configuration space (offset 0x40).
• README.md file in hdl folder contain system memory map now

32KB block memory

Introduction

BRAM size in LX9 is increased to 8K x 32bit, which is 32KB of memory.
I'm going to use this space to measure read/write performance of board!
This area is accessible in (0, 0x8000) address range of BRA0.

Features

• 8/16/32 access is possible
• 32KB of block memory
• Provide better addressing mechanism in HDLs

SRAM (BRAM accessible via char device over PCI bus)

Architecture

• hdl implements single memory mapped BAR in BAR0 (64K size)
  • first 256 byte is R/W BRAM
  • second 256 byte is single register which control on board 3 LEDs
• driver implement simple character device which abstract first 256 byte of BAR0 as a device node
  • It uses dynamic major registration
  • Only 256 bytes of BAR is available via read/write system call
  • device node must be created manually
  • loff_t * offset is not implemented yet in read/write syscalls. So you can not move around file pointer.
  • read/write syscall implementation is very intuitive and need more development.

Artifacts

• epci_fpga.bit is made from Makefile and can be programmed to EPCI-V1.00 board directly
• epci_fpga.bit is x4 bitstream. Configuration bitgen is available on configs/project.cfg
• epci.ko is built for Ubuntu-16.04 / Linux 4.4.0-116-generic #140