For small partners who introduced ARM, it is very familiar with the company, and its STM32 platform is applied in various fields and occasions. However, the STM32 platform is mostly the core of the ARM Cortex-M architecture, and many developers are expecting ST to have an MPU chip. Until in February this year, ST released the first STM32MP1 MPU platform based on ARM Cortex-A7 architecture.
From the officially released chip box diagram, the STM32MP1 series processor has a combination of dual-core Cortex-A7 and Cortex-M4 coprocessors, as well as a 3D GPU unit, providing a smoother experience for display. At the same time, the peripheral function is more rich, except for conventional UART, SPI, I2C, SAI and USB, and HDMI, MIPI, CAN FD, 16bit ADC, etc.
Said that there are so many STM32MP1, where can the board, and enter the subject below.
PANGU development board
The Pangu Development Board is a ST-based STM32MP1 series processor based embedded single board computer development board. The PANGU development board that was taken in this time contains the combination of optional Camera modules, acrylic housings, and 7-inch capacitive screens.
At present, the PANGU development board has been reserved. After booking, you can enjoy the discount price and send the acrylic shell, book a booking as of July 25.
Book link: https://jinshuju.net/f/4ljjjnc
The pangu development board physical figure is as follows:
The appearance of the development board appears to be textured, the black PCB is more high-end temperament. Both the serial port and the power supply DC 5V use a Phoenix terminal to facilitate the installation of the wiring after the housing. All interfaces are also more intended to expand and use.
Hardware introduction
The PANGU development board uses 5V DC power supply to supply power from a Micro USB or Phoenix terminal, any one of which. Onboard features include display features, touch features, cameras, USB, Gigabit Ethernet, RTC, audio, and IO extension. The display function supports three, HDMI, MIPI, and RGB LCD. The PANGU development board and accessories connection diagram are as follows.
The hardware interface resource is described below:
The hardware function block diagram is as follows:
As can be seen from the hardware function block diagram, the PANGU development board can be said to cover the STM32MP1 chip's functionality, which greatly facilitates the learning and evaluation of the developer's chip function. The development plate length is 105.5 x 70x 6.5 mm, which is larger than the raspberry. The development board is a black 6-layer PCB, using a lead-free gold craft, plus the acrylic housing, which looks high-end atmosphere.
From the species of the resource introduction, there is not much resource on the back, there is only one plate-to-plate connector (B2B) extension. This extension supports more signals to extend peripheral features, such as I2C, SPI, UART, USB, CAN, GPIO, and FMCJIB. Basically, the commonly used functions can be said to be "multi-function army knife".
The PANGU development board does not provide information on other manufacturers, but through the Wiki website, there is a wealth of development materials on the website to developers.
PANGU development board power-on test
Connect the LCD LCD and CAMERA module before power-on, the debug serial port uses the USB to the TTL converter, connect to the PANGU development board, and then powered using the USB interface.
The author uses SecureCrt as the debug terminal, the serial number COM4, the baud rate 115200. Print information at startup As shown below, you can see the version, memory size, CPU information, etc. of the Linux system.
After the official Wiki's entry guide document, you can use it after you check the touch screen.
After the system is started, the first is the Stuan Launcher interface, providing some DEMO applications. The "Camera Preview" application can see the screen acquired from the Camera module, the effect map is as follows.
After the experience is still very smooth, it can be applied to products that require Camera function, such as visible access control.
Another application is "3D GPU", showing the rotation of the 3D cube object, as shown in the figure.
summary
At present, the PANGU development board can be regarded as the first development board for the first STM32MP1 series processor in China. It makes many developers using the STM32 platform a choice. It is a nice choice for the increasing product demand, STM32MP1. At the same time, the team of the Pangu development board uses the Wiki website to provide high quality documentation, and is also a domestic numerous manufacturer.
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