ST STM32H735G-DK User Manual

ST STM32H735G-DK User Manual

Discovery kit with stm32h735ig mcu
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Introduction
The
STM32H735G-DK
Discovery kit is designed as a complete demonstration and development platform for STMicroelectronics
®
®
Arm
Cortex
-M7 core-based
2
multiplexed full-duplex I
S interfaces, five USARTs, five UARTs and one ULP UART, one TT/CAN FD, two CAN FDs, two 16-bit
ADCs and one 12-bit ADC, two 12-bit DACs, two SAIs, two Octo-SPI interfaces with OTFDEC crypto, FMC interface, two
SDMMC controllers, two analog comparators, one SPDIF-RX, DFSDM (8 channels / 4 filters), one USB OTG HS and one USB
OTG FS, Ethernet MAC, DCMI interface, TFT LCD controller interface, JTAG and SWD for debugging support.
The STM32H735G-DK Discovery kit offers everything required by the user to get started quickly and develop applications easily.
The hardware features on the board help to evaluate the following peripherals: USB OTG FS, 10/100-Mbit Ethernet, microSD
USART, SAI audio codec stereo with two audio jacks for input/output, ST MEMS digital microphone, 128-Mbit HyperRAM
memory, 512-Mbit Octo-SPI NOR Flash memory, CAN FD, 20-pin microphone MEMS connector with DFSDM interface, 4.3-inch
RGB TFT-LCD display with capacitive touch panel. The ARDUINO
connectors allow easy connection of extension shields or daughterboard for specific applications.
The integrated STLINK-V3E provides an embedded in-circuit debugger and programmer for the STM32 MCU.
Figure 1.
STM32H735G-DK Discovery kit (top view)
Pictures are not contractual.
UM2679 - Rev 1 - April 2020
For further information contact your local STMicroelectronics sales office.
STM32H735IG
microcontroller. This microcontroller features five I²C, six SPIs with four
Discovery kit with STM32H735IG MCU
®
Uno V3 compatible connectors, Pmod
Figure 2.
STM32H735G-DK Discovery kit (bottom view)
UM2679
User manual
,
, and STMod+
www.st.com

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Summary of Contents for ST STM32H735G-DK

  • Page 1: Figure 1. Stm32H735G-Dk Discovery Kit (Top View)

    SDMMC controllers, two analog comparators, one SPDIF-RX, DFSDM (8 channels / 4 filters), one USB OTG HS and one USB OTG FS, Ethernet MAC, DCMI interface, TFT LCD controller interface, JTAG and SWD for debugging support. The STM32H735G-DK Discovery kit offers everything required by the user to get started quickly and develop applications easily. ™...
  • Page 2: Features

    4.3" TFT 480×272 pixels colored LCD module with capacitive touch panel and RGB interface • Ethernet compliant with IEEE-802.3-2002 and PoE (Power over Ethernet) • USB OTG FS • SAI audio codec • One ST-MEMS digital microphone • 512-Mbit Octal-SPI NOR Flash memory ™ • 128-Mbit HyperRAM • Two user LEDs •...
  • Page 3: Ordering Information

    Evaluation tools marked as “ES” or “E” are not yet qualified and therefore not ready to be used as reference design or in production. Any consequences deriving from such usage will not be at ST charge. In no event, ST will be liable for any customer usage of these engineering sample tools as reference designs or in production.
  • Page 4: Development Environment

    UM2679 Development environment Development environment ® The STM32H735G-DK Discovery kit runs with the STM32H735IG 32-bit microcontroller based on the Arm ® Cortex -M7 core. System requirements ® ® ® • Windows OS (7, 8 and 10), Linux 64-bit, or macOS •...
  • Page 5: Conventions

    UM2679 Conventions Conventions Table 3 provides the conventions used for the ON and OFF settings in the present document. Table 3. ON/OFF convention Convention Definition Jumper JPx ON Jumper fitted Jumper JPx OFF Jumper not fitted Jumper JPx [1-2] Jumper fitted between Pin 1 and Pin 2 Solder bridge SBx ON SBx connections closed by 0 Ω...
  • Page 6: Delivery Recommendations

    In particular, pay attention to the following component: • TFT display MB1315 daughterboard in the CN19 connector. For product information related to the STM32H735IGK6U microcontroller, visit the www.st.com website. UM2679 - Rev 1 page 6/42...
  • Page 7: Hardware Layout And Configuration

    UM2679 Hardware layout and configuration Hardware layout and configuration The STM32H735G-DK Discovery kit is designed around the STM32H735IGK6U target microcontroller, packaged in TFBGA176+25. The hardware block diagram (Refer to Figure 3) illustrates the connections between the STM32H735IGK6U microcontroller and the peripheral components.
  • Page 8: Figure 4. Stm32H735G-Dk Board Layout (Top View)

    UM2679 Hardware layout and configuration Figure 4. STM32H735G-DK board layout (top view) CN19: LCD connector P1: Pmod connector B1: Reset button P2: STMod+ connector B2: User button LD1/LD2: User LEDs CN20: Audio connector LD8: ARDUINO ® CN21: Tag connector SW1: Switch U33: Digital microphone Figure 5.
  • Page 9: Figure 6. Stm32H735G-Dk Mechanical Dimensions (Top View) In Millimeters

    UM2679 Hardware layout and configuration Figure 6. STM32H735G-DK mechanical dimensions (top view) in millimeters 159.00 Figure 7. STM32H735G-DK mechanical dimensions (bottom view) in millimeters 5.00 33.00 5.00 5.00 5.00 21.25 21.25 UM2679 - Rev 1 page 9/42...
  • Page 10: Embedded Stlink-V3E

    In case the STM32H735G-DK board is connected to the PC before the driver is installed, some STM32H735G-DK interfaces may be declared as “Unknown” in the PC device manager. In this case, the user must install the dedicated driver files, and update the driver of the connected device from the device manager as shown in...
  • Page 11: Stlink-V3E Firmware Upgrade

    STM32H735G-DK Discovery kit and periodically, to stay up-to-date with the latest firmware version. 6.1.4 Using an external debug tool to program and debug the on-board STM32 There are 2 basic ways to support an external debug tool: Keep the embedded STLINK-V3E running.
  • Page 12: Power Supply

    Target TX used for VCP (must be UART dedicated to Bootloader) Power supply The STM32H735G-DK Discovery kit is designed to be powered by a 5 V DC power source. One of the following five inputs can be used, upon appropriate board configuration: Micro-B USB receptacle CN15 of STLINK-V3E without enumeration: up to 500 mA can be supplied to the board (JP7 jumper setting on ‘CHGR’...
  • Page 13: Supplying The Board With An External Usb Charger: 5 V

    250 mA input current when 9 V < VIN < 12 V 6.2.3 Supplying the board with an external USB charger: 5 V When the STM32H735G-DK board is powered by an external USB charger through CN15, refer to Table 6, the jumper must be placed on pin 9-10 of JP7 (“CHGR”...
  • Page 14: Mcu Current-Consumption Measurement

    If there is no ammeter, STM32H735IGK6U is not powered. Clock source Three clock sources are available on the STM32H735G-DK board, as described below: • X1 25 MHz oscillator for the STM32H735IGK6U HSE system clock and Ethernet PHY •...
  • Page 15: Reset Sources

    UM2679 Reset sources Reset sources The general reset of the STM32H735G-DK board is active LOW. The reset sources include: • B1 Reset button • Embedded STLINK-V3E ® • ARDUINO Uno shield board through CN5 connector (pin 3) • STDC14 receiver •...
  • Page 16: Board Functions

    1 / 2 PoE converter based on the simple diode rectified Flyback topology around the PM88800A component from ST. This module “Powered Device” accepts an input voltage of 48 V and is able to provide 5 V with 600 mA.
  • Page 17: Can Fd

    PDM functionality. Limitation: On the STM32H735G-DK board, SAI1 signals are sharing the same I/Os with SPI5 and UART7 signals. As a consequence, when using SAI1 interface for the audio codec, the user must make sure that there is nothing ™...
  • Page 18: Octo-Spi Nor Flash Memory

    One-stop bit • No flow control 7.11 One TAG interface footprint (CN21) is reserved on the STM32H735G-DK board, which can be used for the board debugging and programming. 7.12 Buttons and LEDs The black button (B1) located on the top side is the reset of the STM32H735IGK6U microcontroller.
  • Page 19: Table 10. Button And Led Control Port

    UM2679 Buttons and LEDs Two LEDs located on the top side, the red LD2 and the green LD1 (refer to Figure 4), are available for the user. To light a LED, a low-logic state HIGH must be written in the corresponding GPIO register. Table 10 shows the assignment of the control ports to the LED indicators.
  • Page 20: Board Connectors

    The CN15 USB connector is used to connect the embedded STLINK-V3E to the PC for programming and debugging purposes. Figure 10. CN15 Micro-B connector (Front view) The related pinout for the USB ST-LINK connector is listed in Table Table 11. CN15 USB Micro-B connector pinout...
  • Page 21: Cn2 Microsd™ Card Connector

    UM2679 CN2 microSD™ card connector The related pinout for the USB OTG FS connector is listed in Table Table 12. CN14 USB OTG FS Micro-AB connector pinout Connector Pin number Pin name Signal name Function VBUS USB_FS_VBUS (PA9) 5 V power USB_FS_DM (PA11) Data- CN14...
  • Page 22: P2 Stmod+ Connector

    SPI5 connected to STMod+ 1. The default configuration is in bold. By default, it is designed to support an ST-dedicated fan-out board to connect different modules or board extensions from different manufacturers. The fan-out board also embeds a 3.3 V regulator and I C level shifters.
  • Page 23: P1 Pmod Connector

    UM2679 P1 Pmod™ connector Limitations: On the STM32H735G-DK board, SPI5 and UART7 signals are sharing the same IOs with SAI1. As a consequence, when using SPI5 or UART7 signals to control a device connected to STMod+, the audio codec ™...
  • Page 24: Cn21 Tag Connector

    UM2679 CN21 TAG connector CN21 TAG connector The CN21 TAG connector footprint is used to connect STM32H735IGK6U microcontroller for programming or debugging the board. Figure 15. CN21 TAG connector Table 17. CN21 TAG connector pinout Pin number Description Pin number Description VDD (3V3) NRST (PH3)
  • Page 25: Cn19 Tft Lcd Display Connector

    Function / MCU port Limitations: On the STM32H735G-DK board, DFSDM1 signals are sharing the same IOs with some IOS used in STMod+. As a consequence, when using DFSDM1 signals to control an extension audio module connected to CN20 audio connector, the user must make sure that nothing is connected on STMod+ (1,2,3,4 pins) connector.
  • Page 26: Cn3 Ethernet Rj45 Connector

    LCD_BL_CTRL 1. The default configuration is shown in bold. CN3 Ethernet RJ45 connector STM32H735G-DK board supports 10Mbps/100Mbps Ethernet communications with the U9 MICROCHIP LAN8742A-CZ-TR PHY, and the CN3 integrated RJ45 connector. The Ethernet PHY is connected to the STM32H735IGK6 microcontroller through an RMII interface.
  • Page 27: Cn10 Audio Green Jack - Line Out

    CN1 50 Ω SMA connector for ADC input A CN1 50 Ω SMA connector is available on the STM32H735G-DK board. It can be connected either to a 16-bit ADC input or to a 12-bit ADC input of the STM32H735IGK6U microcontroller. In order to get good ADC performances, a low noise signal generator is recommended to provide an input signal.
  • Page 28: Cn4, Cn5, Cn8, And Cn9 Arduino ® Uno V3 Connectors

    The STM32 microcontroller I/Os are 3.3 V compatible instead of 5 V for ARDUINO Uno. Limitations: On the STM32H735G-DK board, SPI5 signals are sharing the same IOs with SAI1 and UART7. As a ® consequence, when using SPI5 signals on the ARDUINO connector, the audio codec SAI1 interface cannot be ™...
  • Page 29: Table 23. Arduino ® Uno V3 Compatible Connectors

    UM2679 CN4, CN5, CN8, and CN9 ARDUINO® Uno V3 connectors ® Table 23. ARDUINO Uno V3 compatible connectors Left connectors Right connectors CN No. Pin No. MCU Pin Function Function MCU Pin Pin No. CN No. Name Name I2C4_SCL PF14 I2C4_SDA PF15 AVDD...
  • Page 30: Appendix Astm32H735G-Dk I/O Assignment

    UM2679 STM32H735G-DK I/O assignment Appendix A STM32H735G-DK I/O assignment Table 24. STM32H735G-DK I/O assignment Pin number GPIO port Signal or label Comment ARD_D3 TIM5_CH1 RMII_REF_CLK RMII_MDIO LCD_B5 LCD_VSYNC STMOD#13-ADC ADC12_INP19 II DAC1_OUT2 LCD_G2 RMII_CRS_DV LCD_B3 USB_FS_VBUS PA10 USB_FS_ID PA11 USB_FS_DM...
  • Page 31 UM2679 STM32H735G-DK I/O assignment Pin number GPIO port Signal or label Comment RMII_RXD1 LCD_HSYNC LCD_G6 SDIO1_D0 SDIO1_D1 PC10 SDIO1_D2 PC11 SDIO1_D3 PC12 SDIO1_CK PC13 WAKEUP PC14-OSC32_IN OSC32_IN PC15-OSC32_OUT OSC32_OUT LCD_B1 DETECTn SDIO1_CMD LCD_G7 OCSPI1_IO4 OCSPI1_IO5 LCD_B2 OCSPI1_IO7 T_VCP_TX USART3_TX T_VCP_RX...
  • Page 32 UM2679 STM32H735G-DK I/O assignment Pin number GPIO port Signal or label Comment PE13 LCD_DE PE14 ARD_D5 TIM1_CH4 PE15 LCD_R7 OCSPI2_IO0 OCSPI2_IO1 OCSPI2_IO2 OCSPI2_IO3 OCSPI2_CLK µSD_Detect STMOD#1 ARD_D10 SPI5_NSS II UART7_RX II SAI1_SD_B SAI1_SD_B STMOD#2 SPI5_SCK II UART7_TX II ARD_D13 SAI1_MCLK_B...
  • Page 33 UM2679 STM32H735G-DK I/O assignment Pin number GPIO port Signal or label Comment PG14 LCD_B0 PG15 LCD_BL_CTRL OSC_25M STMOD#12-RST ARD_A1 ADC3_INP13 LCD_R1 LCD_G5 USB_FS_PWR_EN LCD_RST STMOD#9-MISOs SPI5_MISO LCD_R2 LCD_R3 PH10 LCD_R4 PH11 LCD_R5 PH12 STMOD#11-INT PH13 FDCAN1_TX PH14 FDCAN1_RX PH15 LCD_G4...
  • Page 34: Appendix B Federal Communications Commission (Fcc) And Industry Canada (Ic)

    UM2679 Federal Communications Commission (FCC) and Industry Canada (IC) Compliance Statements Appendix B Federal Communications Commission (FCC) and Industry Canada (IC) Compliance Statements FCC Compliance Statement Part 15.19 This device complies with Part 15 of the FCC Rules. Operation is subject to the following two conditions: (1) this device may not cause harmful interference, and (2) this device must accept any interference received, including interference that may cause undesired operation.
  • Page 35: Appendix Cce Conformity

    UM2679 CE conformity Appendix C CE conformity Warning EN 55032 / CISPR32 (2012) Class A product Warning: this device is compliant with Class A of EN55032 / CISPR32. In a residential environment, this equipment may cause radio interference. Avertissement : cet équipement est conforme à la Classe A de la EN55032 / CISPR 32. Dans un environnement résidentiel, cet équipement peut créer des interférences radio.
  • Page 36: Revision History

    UM2679 Revision history Table 25. Document revision history Date Revision Changes 30-Apr-2020 Initial release. UM2679 - Rev 1 page 36/42...
  • Page 37: Table Of Contents

    UM2679 Contents Contents Features................2 Ordering information .
  • Page 38 STM32H735G-DK I/O assignment........
  • Page 39 UM2679 Contents Contents ................37 List of tables .
  • Page 40 STM32H735G-DK I/O assignment ........
  • Page 41 STM32H735G-DK mechanical dimensions (top view) in millimeters ....... . 9...
  • Page 42 ST’s terms and conditions of sale in place at the time of order acknowledgement. Purchasers are solely responsible for the choice, selection, and use of ST products and ST assumes no liability for application assistance or the design of Purchasers’...

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