ARTERY AT-SURF-F437 User manual

AT-SURF-F437 User Manual
2022.3.24 1Rev 1.10
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.
AT-SURF-F437 evaluation board is based on AT32F437ZMT7 microcontroller and includes large-
capacity SDRAM, QSPI Flash and RAM, and rich peripherals (three-color LEDs, buttons, two USB
micro-B, type A connector, Ethernet RJ45 connector, digital camera moduel, microphone and audio
input and outputs, microSD card interface) and communication interfaces such as RS-232, RS-485,
two CAN transceivers, 3.5 inch TFT-LCD touch screen. All this is aimed at enabling users to
experience all the features of the AT32F437 device.
The evaluation board comes with an embedded AT-Link-EZ for debugging/programming without
the need of other development tools.
Figure 1. AT-SURF-F437 evaluation board

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Contents
1Overview................................................................................................................. 6
1.1 Features ...................................................................................................................6
1.2 Conventional terms .................................................................................................. 7
2Quick start .............................................................................................................. 8
2.1 Get started................................................................................................................8
3Hardware layout ..................................................................................................... 9
3.1 Power supply...........................................................................................................11
3.2 Embedded AT-Link-EZ for programming and debugging .........................................11
3.3 Boot mode selection................................................................................................11
3.4 External clock sources.............................................................................................11
3.5 LEDs ......................................................................................................................12
3.6 Buttons ...................................................................................................................12
3.7 Memories ...............................................................................................................12
3.7.1 SDRAM.......................................................................................................................12
3.7.2 SPI Flash memory......................................................................................................12
3.7.3 SPI PSRAM................................................................................................................12
3.7.4 I2C EEPROM..............................................................................................................12
3.8 RS-485 communication .......................................................................................... 12
3.9 RS-232 communication .......................................................................................... 13
3.10 CAN communication...............................................................................................13
3.11 microSD card..........................................................................................................13
3.12 Audio ......................................................................................................................13
3.13 Video ......................................................................................................................13
3.13.1 TFT-LCD connector....................................................................................................13
3.13.2 Digital camera module connector ..............................................................................13
3.14 OTGFS connector ..................................................................................................14
3.15 Ethernet connector .................................................................................................14
3.16 Other input and output devices...............................................................................14
3.16.1 Variable resistor..........................................................................................................14
3.16.2 Buzzer ........................................................................................................................14

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3.16.3 InfraRed receiver........................................................................................................15
3.17 Extension connector...............................................................................................15
3.18 0 Ω resistors ........................................................................................................... 15
4Pin assignment .................................................................................................... 16
5Schematics ........................................................................................................... 22
6Revision history ................................................................................................... 31

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List of tables
Table 1. Boot mode related jumpers.................................................................................................. 11
Table 2. 0 Ω resistor settings .............................................................................................................15
Table 3. AT32F437ZMT7 pin assignment..........................................................................................16
Table 4. Document revision history....................................................................................................31

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List of figures
Figure 1. AT-SURF-F437 evaluation board.........................................................................................1
Figure 2. Hardware block diagram ......................................................................................................9
Figure 3. Top layout ...........................................................................................................................10
Figure 4. Bottom layout......................................................................................................................10
Figure 5. Schematic for AT-Link-EZ and power ................................................................................22
Figure 6. Schematic for AT32F437ZMT7 MCU.................................................................................23
Figure 7. Schematic for SDRAM and TFT-LCD connector...............................................................24
Figure 8. Schematic for QSPI, microSD card slot and camera module connector...........................25
Figure 9. Schematic for Ethernet PHY and RJ45 connector.............................................................26
Figure 10. Schematic for audio..........................................................................................................27
Figure 11. Schematic for OTGFS, CAN, RS-485 and RS-232 connector.........................................28
Figure 12. Schematic for other devices.............................................................................................29
Figure 13. Schematic for extension connectors ................................................................................30

AT-SURF-F437 User Manual
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1 Overview
1.1 Features
AT-SURF-F437 has the following features:
On-board 32-bit ARM®Cortex®-M4 core-based AT32F437ZMT7 microcontroller with 4032 KB
of Flash memory and 384 KB of SRAM, in LQFP144 package
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 (VBUS1 or VBUS2)
−VBAT can be supplied through a coin cell battery
Extension memories:
−32 MB of SDRAM (connected to XMC interface)
−16 MB of SPI Flash (connected to QSPI1 interface)
−8 MB SPI PSRAM (connected to QSPI2 interface)
Clock sources:
−8 MHz HEXT crystal
−32.768 kHz LEXT crystal
LEDs:
−LED1 (Red) indicates 3.3 V power-on
−User LED2 (three color) indicates the status of the application execution
−AT-Link-EZ has four LEDs (LD1~4) indicating its working status, refer to AT-Link user
manual for details
User interface
−2 user buttons, five-direction joystick and 1 reset button
−1 variable resistor connected to ADC
−Buzzer and IrDA receiver
Communication interfaces
−SPI4 is connected to extension connectors
−USART3 is connected to RS-485 transceiver
−UART5 is connected to RS-232 transceiver (D-Sub 9-pin male connector is available)
−TFT-LCD display control using I2C1
−I2C2 controls camera module, audio codec WM8988, EEPROM K24C02 and I/O extension
device PCA9555 and is connected to extension connector
−2 CAN transceivers
−microSD card connector
−OTGFS1 with USB type A and micro-B connectors
−OTGFS2 with a micro-B connector (To run in host mode, an OTG cable is required to
connect with external devices)
−Ethernet EMAC is connected to Ethernet PHY with RJ45 connector

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Audio
−Full-duplex I2S2 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
−3.5 inch 320 x 480 TFT-LCD parallel interface display (connected to XMC interface) with
capacitive touch panel
Note: Devices or modules attached to the board may be replaced with other compatible parts at the time
of shipment and PCB revision code remains unchanged without notice.
1.2 Conventional terms
Jumper JPx ON
Jumper fitted
Jumper JPx OFF
Jumped not fitted
Resistor Rx ON
Resistor soldered or connected with a 0 Ω resistor
Resistor Rx OFF
Resistor not soldered

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2 Quick start
2.1 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
AT32F437ZMT7)
JP3 is connected to GND (BOOT1=0)
3. Connect AT-Link-EZ to PC via a USB cable (Type A to micro-B), power the board via a USB
connector CN1, and turn on power switch SW1
4. TFT-LCD display shows the word ARTERY
5. LED1 (red) ON. LED2 blinks in white and then in green, red and blue

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3 Hardware layout
The AT-SURF-F437 evaluation board is designed around the AT32F437ZMT7 microcontroller in a
144-pin LQFP package.
Figure 2 illustrates the connections between the AT32F437ZMT7 and peripherals. Figure 3 and
Figure 4 Show the locations of these features on the AT-SURF-F437 evaluation board.
Figure 2. Hardware block diagram
SWD / SWO /
USART1
AT32F437ZMT7
XMC
I2C1
AT-Link-EZ
Micro-USB
Ethernet
PHY Ethernet
RJ45
USB type-A
Micro-USB
SDRAM
TFT-LCD
QSPI1SPI Flash
QSPI2SPI PSRAM
GPIO
Three color
LED
GPIOUser button
NRST
Reset
button
I2C2
EEPROM
I/O extension
IC
Five-direction
joystick
Buzzer
ADC1
Variable
resistor
USART3
SPI4
Extension
connector
RS-485
transceiver
RS-485
connector
Micro SD
card
connector
SDIO1
CAN1 CAN
transceiver CAN1
interface
CAN2 CAN
transceiver CAN2
interface
OTGFS1
OTGFS2 Micro-USB
EMAC
UART5
RS-232
transceiver
RS-232
connector
I2S2 Audio codec
Power
amplifier Speaker
Microphone
LINE_IN
LINE_OUT
I2C2
Camera
connector
DVP
Camera
module

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Figure 3. Top layout
AT32F437ZMT7 Extension
connector
USB micro-B
connector
Power LED
AT-Link-EZ
Boot
mode
jumper
LINE_IN
interface
CR1220 coin
battery cell microSD card slot SPI4 Camera module
connector
I2C2
CAN2
interface
CAN1
interface
I2C EEPROM
Digital
microphone
LINE_OUT
interface
Audio
amplifier
IrDA
receiver
Audio codec
Active buzzer
I/O extension IC
Five-direction
joystick
User
buttons
Reset
button
Variable resistor
with rotary switch
TFT-LCD
Ethernet PHY
Three color
LED SDRAM
Ethernet RJ45
connector
RS-485
connector
SPI
Flash
SPI PSRAM
RS-232
connector
Power
switch
Extension
connector
USB Type-A connector
Figure 4. Bottom layout
Speaker