AT-SURF-F437 User Manual Evaluation board with AT32F437ZMT7 MCU Introduction AT-SURF-F437 evaluation board with a complete set of features helps the user to explore the high ® ® performance of the 32-bit ARM Cortex -M4 microcontroller AT32F437 with FPU and expedite his application development.
On-board AT-Link-EZ for programming and debugging, without the need of an emulator Power supply options: − AT-LIink-EZ USB bus − AT-SURF-F437 OTG1 or OTG2 bus (V or V BUS1 BUS2 − V can be supplied through a coin cell battery ...
AT-SURF-F437 User Manual Audio − Full-duplex I S2 is connected to audio codec WM8988 − Audio power amplifier-driven speaker (on the back of the board) and 3.5 mm LINE_OUT − Microphone and 3.5 mm LINE_IN Video − Digital camera module is connected to DVP interface −...
AT-SURF-F437 User Manual Quick start Get started Configure the AT-SURF-F437 evaluation board in the following order: 1. Insert camera module into the digital camera module connector CN3 with lens facing forward 2. Check the Jumper positions on the board JP2 is connected to GND or OFF (BOOT0=0. BOOT0 has a pull-down resistor in the...
AT-SURF-F437 User Manual Hardware layout The AT-SURF-F437 evaluation board is designed around the AT32F437ZMT7 microcontroller in a 144-pin LQFP package. Figure 2 Figure 3 illustrates the connections between the AT32F437ZMT7 and peripherals. Figure 4 Show the locations of these features on the AT-SURF-F437 evaluation board.
AT-SURF-F437 User Manual Figure 3. Top layout CR1220 coin microSD card slot SPI4 battery cell Camera module Exte nsion AT32F437ZMT7 AT-Link-EZ connector connector Power switch CAN2 Extension interface connector Power LED CAN1 interface C EEPROM RS-232 connector USB Type-A connector...
AT-SURF-F437 User Manual Power supply The AT-SURF-F437 evaluation board is designed to be powered by a 5 V power supply via a USB cable. It is also possible to configure the evaluation board to use the following three sources for 5 V power supply: USB connector (CN1, power switch SW1 ON) on the AT-Link-EZ;...
AT-SURF-F437 User Manual LEDs Power LED1 Red LED: indicates that the AT-SATRT-F437 evaluation board is being powered by 3.3 V. User LED2(RGB_LED) The Three-color LED, red, green and blue, is connected to PB10, PD13 and PB5 of the AT32F437ZMT7 respectively that adjust color change and brightness by controlling PWM duty cycle of each color.
C2. The I C address of WM8988 is 0b0011010. A 3.5 mm stereo LINE_OUT interface (CN14, light green) mounted on the AT-SURF-F437 board is linked to the output1 on the WM8988 and able to connect with a stereo playback device. A small speaker (connect to CN5 on the back of the board) is also available on the board, and it is driven by an audio power amplifier TC8002D (U17).
AT32F437ZMT7 is directly connected to host via a USB micro-B cable, and either V BUS1 or V can be used to supply 5 V for the AT-SURF-F437 evaluation board. As a host, the BUS2 AT32F437ZMT7 is connected to an external device through a USB OTG cable, and the OTGFS1 and OTGFS2 provide power to the device via the USB micro-B connector by controlling SI2301 switch through IO1_5 and IO1_6 of the I/O extension connector (U21) respectively.
Extension connector 3.17 The P4 and P5 of extension connector are connected to GPIOs of the AT-SURF-F437 microcontroller and can be measured through oscilloscope, logic analyzer or voltmeter. As the P6 of extension connector corresponds to CN2, it is also possible to measure and debug LCD pins via P6 when LCD is connected to CN2.
AT-SURF-F437 User Manual Pin assignment To offer a complete picture of the full-featured AT32F437 microcontroller, each of GPIOs on the microcontroller is presented with specific features and connected to one or more devices externally. If there is concern about the simultaneous operation of several devices controlled by the same pin, JPx or 0 Ω...
AT-SURF-F437 User Manual Schematics Figure 5. Schematic for AT-Link-EZ and power VBUS1 +3V3 DFLS130L-7 LED Red 0.1uF VBUS2 SY8120B1ABC LED Green DFLS130L-7 +3V3 SWPA6045S5R6MT LED Blue 100K 100K 20pF LED Yellow 100uF 10uF 0.1uF SMBJ5.0A Vout = 0.6v*(R1+R2)/R2 = 3.327V...
AT-SURF-F437 User Manual Revision history Table 4. Document revision history Date Revision Changes 2021.12.22 1.00 Initial release 1. Updated the U10 number as CN15 2. Swapped R115 and R116 2022.3.24 1.10 3. Chaned R118 to be OFF and R119 to be ON 4.
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