I would like to thank the EEWorld forum for providing me with the development board for evaluation. I would also like to thank the forum administrators for confirming the address and carefully sending the courier number when sending the courier. However, due to the Chinese New Year holiday, I only received the development board in the past two days.
The formal evaluation will be carried out below.
1. Unboxing
Let’s start with the outer packaging, which is still in a transparent plastic box.
Below the board is a separate description of the AT32F437;
Big face photo
The PCB color is white, which makes it look classy.
2. Onboard Resources
Check the official development board manual and you can see the hardware block diagram as follows:
The top-level layout is as follows:
From the block diagram, the main onboard resources are as follows:
- The onboard AT32F437ZMT7 microcontroller is an ARM Cortex-M4F with FPU core, 32-bit processor, built-in 4023 K bytes of flash memory, default 384 K bytes of SRAM, LQFP144 package
- Onboard AT-Link interface:
You can use the onboard AT-Link-EZ for programming and debugging. (AT-Link-EZ is a simplified version of AT-Link and does not support offline mode)
If AT-Link-EZ is folded down, it can be connected to a separate AT-Link for programming and debugging
- Onboard 20-pin ARM standard JTAG interface (can be connected to JTAG or SWD connector for programming and debugging)
- 16 Mbyte SPI flash memory EN25QH128A is used as an extended flash memory
- 4 LED indicators:
LED1 (red) is used for 3.3 V power-on indication
3 user LEDs, LED2 (red), LED3 (yellow), and LED4 (green), for application indication
- User key and reset key buttons
- 8 MHz HEXT crystal
- 32.768 kHz LEXT crystal
- Onboard USB type A and micro-B connectors
- OTG2 provides micro-B connector
- Onboard Ethernet PHY with RJ45 connector
- Rich expansion interfaces can be quickly connected to a prototype board and are easy to experience:
ArduinoTM Uno R3 expansion interface
LQFP144 I/O port expansion interface
The power supply mode of the development board is
AT-LIink-EZ USB bus
OTG1 or OTG2 bus (VBUS1 or VBUS2) of AT-START-F437
External 5 V power supply (E5V)
External 3.3 V power supply
3. Hardware Introduction
1. The main control chip uses AT32F435ZMT7, which has the following characteristics:
- This material has the highest main frequency among the current M4 in the industry, up to 288Mhz; the core is Cortex-M4
- The memory of this material is up to 4MB, and the SRAM is up to 512KB; the memory is consistent with the ST u5 series, which shows that the competition of MCU chips is fierce; compared with the STM32U5 series, this material hosts the CF card
- The most outstanding feature of the ADC is that the sampling rate is as high as 5.33MSPS and the resolution can reach 16 bits.
- With one EDMA, DMA total 22 channels
- With 18 timers
- Up to 23 communication interfaces
Judging from the above peripheral resources, there are still a lot of peripherals. Arteli should be a leader in the domestic MCU industry. The first time I came into contact with domestic chips was also from Arteli.
2. Onboard 8Mhz external crystal oscillator and 32.768Khz external low-speed crystal oscillator
3. Use RT9080N power chip to power MCU
4. Use DM9162EP PHY chip
5. Onboard en25qh128a 128Mbit FLASH memory
6. AT-LINK uses AT32F403CGT6 as the main control chip
4. Study Materials
I have to say that Arteli's resource organization is very good, because you can directly enter the product introduction page to find data sheets, reference manuals, development board resources, download tools, development routines, and resource libraries. And you can find the resources you want very quickly.
All relevant information can be found on the following link pages.
Artery Technology: The innovative leader in 32-bit microcontrollers! (arterytek.com)
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