WeChat Official Account: Chip Home (ID: chiphome-dy)
01 Coding While Parenting
The computer is a bit outdated
02 Background Music Suitable for Coding
coderadio.freecodecamp.orghttps://www.youtube.com/watch?v=MVPTGNGiI-4https://www.youtube.com/watch?v=-XmImaT5TxM&ab_channel=MedievalLofi
03 PCB Appreciation
Let’s appreciate the PCB designs made by others.
The main control is the Raspberry Pi Pico, with extremely smooth PCB traces.
04 ST Launches STM32MP2
The STM32MP1 has not been used yet, and now the MP2 is here. The new series continues the STM32MP1 Arm Cortex-A7/M4 series launched in 2019, with the first member being the STM32MP25, featuring up to two 1.5 GHz Cortex-A35 cores and an Arm Cortex-M33 real-time core, with a frequency of 400 MHz, a 3D GPU, and a 1.35 TOPS NPU for AI acceleration. The dedicated neural processing unit (NPU) adds up to 1.35 TOPS (trillions of operations per second) computing power, optimized for Edge AI acceleration in applications like advanced machine vision and predictive maintenance. STM32MP25 supports 32-bit DDR4 and LPDDR4 memory, ensuring long-term support for cost-optimized designs.
CPU – Single or dual-core Arm Cortex-A35 with frequencies up to 1.5 GHzReal-time MCU – Arm Cortex-M33 core running at up to 400 MHzGPU – Unnamed 3D GPU for "advanced HMI", supports Vulkan APIVPU – H.264 hardware video decoder and encoderAI Accelerator – 1.35 TOPS NPU (Neural Processing Unit)System Memory – 32-bit DDR4 and LPDDR4 supporting up to 1.2 GHz.Video Output – Up to 1920×1080 through RGB, 4-channel MIPI DSI or LVDS interfaceCamera I/F – MIPI CSI-2 camera interface with Lite-ISP; up to 5MP at 30 frames per second (fps)Networking – 1. Up to 3 Gigabit Ethernet ports (with 2-port switch) 2. Time-Sensitive Networking (TSN)Peripherals – PCIe Gen2, USB 3.0, 3x CAN-FDSecurity – 1. SESIP Level 3 Certification 2. Arm TrustZone on Cortex-A and Cortex-M cores 3. Hardware Encryption 4. Secure Configuration EcosystemTemperature Range – -40 to +125°CPackaging – Multiple packages to be released soon, including 0.8 mm pitch chip-level package (TFBGA)10 Years 100% uptime ten-year longevity program
In summary, it’s very powerful, and the mass production plan for chips and circuit boards will start in the first half of 2024.
05 The Strongest MCU in the Country
GigaDevice recently officially launched China’s first ultra-high-performance microcontroller based on the Arm® Cortex®-M7 core, the GD32H737/757/759 series. The new product lineup includes 27 models across 3 series, offering five packaging options including 176-pin and 100-pin BGA packages, as well as 176-pin, 144-pin, and 100-pin LQFP packages, which will begin sample and development board applications at the end of May and officially enter mass production in October.
The GD32H7 series MCUs utilize a 600MHz Arm® Cortex®-M7 high-performance core based on the Armv7E-M architecture, achieving higher processing performance with a 6-stage superscalar pipeline architecture that supports branch prediction and high-bandwidth AXI and AHB bus interfaces. It has advanced DSP hardware accelerators and a double-precision floating-point unit (FPU), as well as a hardware trigonometric function accelerator (TMU) and filter algorithm accelerator (FAC), significantly reducing the burden on the core and helping to improve processing efficiency. The GD32H7 series MCUs can achieve up to 1552 DMIPS of performance at the maximum operating frequency, and the CoreMark® test achieved an excellent score of 2888, improving code execution efficiency by about 10% compared to similar products in the market at the same frequency, and over 40% compared to Cortex®-M4 products.
The GD32H7 has a macro unit ETM (Embedded Trace Macrocell) that can track instructions and data in real-time, providing advanced debugging capabilities without interfering with CPU normal operation. The large storage capacity built into the GD32H7 supports complex operating systems and various advanced algorithms such as embedded AI and machine learning (ML), achieving both high performance and low latency real-time control.
The GD32H7, at 600MHz, is higher than the STM32H7, which is a 40nm process, but according to investigations, the GD32H7 is likely a 22nm process, so the chip size should be much smaller than ST’s, looking forward to it.
Specific peripherals will not be introduced in detail; if you are interested, you can check the GD official website, as it will definitely have what you need.
06 AD Updated to 23.5
Altium Designer 23.5 is here!
2. Use PCB cross-section views to discover hidden parts of the circuit board.PCB cross-section views provide precise insights into design layout and structure in unprecedented ways.When dealing with dense and complex PCBs, the cross-section view displays details that are usually invisible in the PCB.By fully controlling plane layout and color, you can easily view all components, even smaller SMD components hidden under larger components or mechanical parts.
3. Custom thermal devices for pads and vias. Continuing our custom pad shape feature, you can now add, remove, and edit thermal release spikes at any location on pads or vias, regardless of shape. This helps with soldering and avoids potential manufacturing issues like tombstoning.
07 ESP32 Dot Matrix Transparent Clock
Project address:
https://www.instructables.com/HUD-like-WiFi-Sync-Clock-Transparent-Dot-Matrix-Di/08 Open Source LM3886 Amplifier
OpenEarable is an open-source hardware ear-worn device, sometimes referred to as a hearable, suitable for wearing on the ear, based on the same u-blox NINA-B306 module in the Arduino Nano 33 BLE Sense board.
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Wireless Module – The U-blox NINA-B306 module is powered by Nordic Semi nRF52840 Arm Cortex-M4F microcontroller @ 64MHz, with 1MB Flash, 256KB RAM, Bluetooth 5.0 LE connectivity.
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Audio – Built-in speaker and ultrasonic microphone (Knowles SPH0641LU4H-1).
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Sensors
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STMicro LPS22HBTR pressure and temperature sensor.
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STMicro LSM6DSRTR 6-axis IMU with accelerometer and gyroscope.
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USB – Micro USB port for power and programming.
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Debugging – SWD interface pads.
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Others – Power, buttons, charging LED, and a programmable PWM LED.
Project Address: https://open-earable.teco.edu/
GitHub: https://github.com/teco-kit/open-earable/tree/main
10 Hardware Knowledge Map
Here are some interesting pictures and texts shared with everyone to make you happy. Chip Home is committed to helping everyone relieve stress once a week! Regarding the study of electronic hardware and software, I hope everyone enjoys! Your likes and shares are my best motivation to continue creating!
Inside a $200 industrial power supply device, I found the inside……
I’m connecting to the ground, no, you’re connecting to the soil!
1206, 0805, 0603, 0402, 0201, 01005, 008004, what is the smallest package you have hand-soldered?
Amazing! This fence welder must have graduated from an electronics major.
Welcome to share, collect, like, and view.