Board Bring-Up on Hoa Nguyen — Embedded Software Architecthttps://hoanguyen.de/tags/board-bring-up/Recent content in Board Bring-Up on Hoa Nguyen — Embedded Software ArchitectHugoen-usSat, 25 Jul 2026 00:00:00 +0000FlexSPI + QSPI NOR on the i.MX RT1062: Configuration and Verifying Max Speedhttps://hoanguyen.de/posts/flexspi-qspi-nor-rt1062-max-speed/Sat, 25 Jul 2026 00:00:00 +0000https://hoanguyen.de/posts/flexspi-qspi-nor-rt1062-max-speed/How I configured FlexSPI for a Winbond W25Q128JV, measured 518 Mbps read (97% of theoretical), and why the write measurement that looked great was actually a bug in my busy-poll loop.i.MX RT1062 Pin Config: Pull/Keeper, Drive Strength and Slew Ratehttps://hoanguyen.de/posts/imx-rt1062-pin-config-pull-drive-slew/Sat, 25 Jul 2026 00:00:00 +0000https://hoanguyen.de/posts/imx-rt1062-pin-config-pull-drive-slew/What each IOMUXC pad-control field actually does, how to derive the right value from the schematic instead of trusting the config tool’s defaults, and the SD-card bug those defaults caused on my board.