Tag: qspi

2 articles tagged qspi. See all tags or all posts.

ALINX AX7020, Stage 5 Complete: Cold Power-On to a Bitstream API, Nobody Logged In

September 15, 2026 fpga alinx zynq yocto systemd kexec fastapi rest-api linux u-boot qspi nginx embedded bring-up deployment

The open bitstream pipeline for the ALINX AX7020 is finished: power on, the maintenance Linux in QSPI fetches the full image from a company-internal URL, kexecs into it, systemd starts the FastAPI service, and a curl loads a Yosys/nextpnr bitstream into the FPGA. No SD card, no vendor tool, no hand on the board; plus the detours, including a JTAG adapter that quietly powered the flash chip through a power cycle.

ALINX AX7020, Stages 2 & 3: A Yocto Linux in QSPI Flash That Fetches Its Own Updates

August 31, 2026 fpga alinx zynq yocto linux u-boot kexec dropbear fit-image qspi embedded bring-up

Stages 2 and 3 of the open bitstream pipeline: a self-built Yocto Linux for the ALINX AX7020, resident in QSPI flash, discoverable on the company network, key-only SSH: the walkthrough that works, followed by the nine detours it took to get there.