Hello everyone, I am Pi Zi Heng, a serious tech enthusiast. Today, I will introduce the NXP i.MXRT1xxx series MCU’s SD/eMMC card boot. Recently, I supported a case about booting i.MXRT from an SD card on the NXP official community, which reminded me of an article I wrote a year ago titled “Booting i.MXRT600 from … Read more
Hello everyone, I am Pi Zi Heng, a serious technical guy. Today, I will introduce the debugging principles of the NXP i.MX RTyyyy series EVK with serial NOR Flash. This article is the sequel to the second part of the i.MXRT hardware series. In the first episode of the second part, I introduced the usage … Read more
Hello everyone, I am Pi Zi Heng, a serious technical guy. Today, I will share with you the experience of further improving code execution performance on i.MXRT. The topic I want to discuss today is related to a large project based on i.MXRT1170 that I have been involved in recently. I am working on the … Read more
Hello everyone, I am Pi Zi Heng, a serious technical person. Today, I will introduce how to modify the FlexSPI driver on i.MXRT to write NOR Flash using AHB. Recently, I wrote an article titled “The Two Key Characteristics of Serial NAND Flash Preventing XiP under i.MXRT FlexSPI”, where I discussed the Page Read waiting … Read more
Hello everyone, I am Pi Zi Heng, a serious techie. Today I will introduce the precautions for configuring multiple registers of serial NOR Flash in FDCB. Regarding the use of the i.MXRT boot header FDCB to set the internal registers of Flash, I have previously written two articles. Before diving into this article, I recommend … Read more
Today, we will introduce the two main characteristics of serial NAND Flash that prevent it from supporting XiP under the i.MXRT FlexSPI. In the embedded world, when we mention XiP devices (memory that supports code execution in place), the first thing that comes to mind should be NOR Flash. For example, mid-range and low-end MCUs … Read more
Follow+Star Public Account, don’t miss exciting content Source | PiZi Heng Embedded Today, I will introduce the differences between normal GPIO and high-speed GPIO on i.MXRT. GPIO can be said to be the simplest and most commonly used peripheral module on MCU. When some native functional peripheral interface modules cannot meet the project design requirements, … Read more
Hello everyone, I am Pi Zi Heng, a serious tech person. Today I will share the method and steps to quickly illuminate a brand new LCD screen on the i.MXRT1170. As we know, there are many interfaces for LCD screens: DPI-RGB, MIPI DSI, DBI/MCU (I8080), LVDS, SPI, etc. Different interfaces require different software drivers. The … Read more
Hello everyone, I am Pi Zi Heng, a serious techie. Today, I will share with you the principles of the Cortex-M interrupt vector table and its redirection methods. Continuing from the previous article “Three Implementations of Critical Section Protection in Embedded Cortex-M Bare Metal Environment”, in embedded code design, sometimes certain special operations (such as … Read more
Hello everyone, I am Pi Zi Heng, a serious tech enthusiast. Today, I will introduce you to Super Download Algorithm Development Notes (1) Execution on Different CM Cores. This article continues from the previous one titled RT-UFL – A Super Download Algorithm Design Suitable for All i.MXRT Platforms, and the open-source project initiated by Pi … Read more