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STMicroelectronics STM32H7B3I-EVAL User Manual
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STMicroelectronics STM32H7B3I-EVAL User Manual

STMicroelectronics STM32H7B3I-EVAL User Manual

Evaluation board with stm32h7b3li mcu
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Introduction
The
STM32H7B3I-EVAL
Evaluation board is a complete demonstration and development platform for the Arm
based
STM32H7B3LIH6Q
microcontroller. The STM32H7B3I-EVAL Evaluation board provides access to all the STM32
peripherals for user applications and includes an embedded STLINK-V3E debugger/programmer.
The full range of the STM32H7B3I-EVAL hardware features helps to develop applications and evaluate all the peripherals, such
as USB OTG HS and FS, CAN FD, USART, ADC and DAC, digital microphones, SRAM, SDRAM, NOR flash memory, Octo‑SPI
flash memory with OTFDEC, microSD
DCMI camera.
The expansion connectors provide an easy way to add specialized features, while ETM trace is supported through external
probes.
Picture is not contractual.
UM2662 - Rev 4 - April 2025
For further information, contact your local STMicroelectronics sales office.
Evaluation board with STM32H7B3LI MCU
™
3.0 card, 7" 800x480 WVGA TFT color RGB LCD with capacitive touch panel (I
Figure 1.
STM32H7B3I-EVAL Evaluation board (top view)
UM2662
User manual
®
®
Cortex
-M7-
2
C), and
www.st.com

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Summary of Contents for STMicroelectronics STM32H7B3I-EVAL

  • Page 1 STLINK-V3E debugger/programmer. The full range of the STM32H7B3I-EVAL hardware features helps to develop applications and evaluate all the peripherals, such as USB OTG HS and FS, CAN FD, USART, ADC and DAC, digital microphones, SRAM, SDRAM, NOR flash memory, Octo‑SPI ™...
  • Page 2 UM2662 Features Features ® ® • STM32H7B3LIH6Q Arm Cortex microcontroller with 2 Mbytes of flash memory and 1.4 Mbyte of RAM in TFBGA225 package • 7" 800x480 WVGA TFT LCD color module with RGB parallel interface and capacitive touch panel with I interface •...
  • Page 3 UM2662 Ordering information Ordering information To order the STM32H7B3I-EVAL Evaluation board, refer to Table 1. For a detailed description, refer to its user manual on the product web page. Additional information is available from the datasheet and reference manual of the target STM32.
  • Page 4 - IAR Embedded Workbench ® • Keil - MDK-ARM • STMicroelectronics - STM32CubeIDE 1. On Windows ® only. Demonstration software The demonstration software, included in the STM32Cube MCU Package corresponding to the on-board microcontroller, is preloaded in the STM32 flash memory for easy demonstration of the device peripherals in standalone mode.
  • Page 5 UM2662 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 UM2662 Safety recommendations Safety recommendations Targeted audience This product targets users with at least basic electronics or embedded software development knowledge such as engineers, technicians, or students. This board is not a toy and is not suited for use by children. Handling the board This product contains a bare printed circuit board and like all products of this type, the user must be careful about the following points:...
  • Page 7 UM2662 Hardware layout and configuration Hardware layout and configuration Hardware layout The STM32H7B3I-EVAL Evaluation board is designed around the STM32H7B3LIH6Q target microcontroller. Figure 2 illustrates STM32H7B3LIH6Q connections with peripheral components. Figure 2. Hardware block diagram 3V3 Power Supply (3V3_AO) STM32H7B3LIH6Q...
  • Page 8 Hardware layout and configuration Figure 3 shows the location of the main components on the top side of the Evaluation board. Figure 3. STM32H7B3I-EVAL Evaluation board layout CN4: MB1299 DFSDM microphones module connector CN1: Motor-control connector SW1: BOOT0 switch JPME1: Power meter connector CN3: microSD™...
  • Page 9 UM2662 Hardware layout and configuration STM32H7B3I-EVAL mechanical drawing MB1331 with 7’’ LCD daughterboard (RGB) Figure 4. Mechanical dimensions (in millimeters) Table 4. Mechanical dimensions (in millimeters) Symbol Size Symbol Size Symbol Size 68.6 116.5 32.7 48.6 21.4 1.27 33.5 60.7 32.7...
  • Page 10 UM2662 Hardware layout and configuration Embedded STLINK-V3E 6.3.1 Description The STLINK-V3E programming and debugging tool is integrated into the STM32H7B3I-EVAL Evaluation board. The embedded STLINK-V3E supports: • 5 V power supplied by the USB connector (CN21) • USB 2.0 high-speed-compatible interface •...
  • Page 11 UM2662 Hardware layout and configuration 6.3.3 Drivers Before connecting the STM32H7B3I-EVAL board to a Windows PC via USB, the user must install a driver for the STLINK-V3E (not required for Windows 10). It is available on the www.st.com website. In case the STM32H7B3I-EVAL board is connected to the PC before the driver is installed, some STM32H7B3I- EVAL interfaces might be declared as Unknown in the PC device manager.
  • Page 12 UM2662 Hardware layout and configuration External JTAG, SWD, and trace 6.4.1 Description There are two basic ways to support an external debug tool. If the user encounters any trouble with the first procedure, then the second one is mandatory. 1. Keep the embedded STLINK-V3E running. Power on the STLINK-V3E at first until the COM LED lights up red. Then connect the external debug tool through the CN14, CN15, or CN16 connector.
  • Page 13 UM2662 Hardware layout and configuration 6.4.2 Limitations and hardware configuration - ETM trace (CN15) ® Limitations: Wi‑Fi , LCD, SAI, and FMC A19-22 cannot be used at the same time as TRACE. If the best performance of ETM is required (84/98 MHz), refer to Table 5.
  • Page 14 UM2662 Hardware layout and configuration 6.4.3 Limitations and hardware configuration - JTAG (CN14) or MIPI10 (CN16) Limitations: STM32H7B3LIH6Q JTAG cannot be connected at the same time to STLINK-V3E and CN14 or CN16 connector. To use JTAG on the CN14 or CN16 connector, it is necessary to disconnect the JTAG signals from STLINK-V3E (JTMS, JTCK, JTDO, and NRST).
  • Page 15 UM2662 Hardware layout and configuration Figure 8. ETM trace debugging connector (CN15) Table 8. ETM trace debugging connector (CN15) Pin number Description Pin number Description +3.3 V TMS/PA13 TCK/PA14 TDO/PB3 KEY (NC) TDI/PA15 RESET# TraceCLK/PE2 TraceD0/PE3 or SWO/PB3 TraceD1/PE4 or nTRST/PB4 TraceD2/PE5 TraceD3/PE6 UM2662 - Rev 4...
  • Page 16 UM2662 Hardware layout and configuration Figure 9. JTAG debugging connector (CN14) Table 9. JTAG/SWD debugging connector (CN14) Pin number Description Pin number Description +3.3 V +3.3 V TRST(PB4) TDI(PA15) TMS/SWDIO(PA13) TCK/SWCLK(PA14) RTCK TDO/SWO(PB3) RESET# DBGRQ(PJ7) DBGACK(PJ12) UM2662 - Rev 4 page 16/102...
  • Page 17 “EXT” from PSU or “D” can be used as an external power supply in case the current consumption of the STM32H7B3I-EVAL board exceeds the allowed current on the USB. In this condition, it is still possible to use USB for communication for programming or debugging only. Anyway, it is mandatory to power the board first using E5V or D5V, and then connect the USB cable to the PC.
  • Page 18 For power supply from USB OTG FS (CN27) to STM32H7B3I-EVAL, JP29 is set as shown on the right. For power supply, from the daughterboard connectors (CN5 and CN6) to STM32H7B3I-EVAL, JP29 is set as shown on the right. For power supply from a USB wall charger plugged into CN21 to STM32H7B3I-EVAL, JP29 is set as shown on the right.
  • Page 19 ‑ power mode (register address=04, bit 6 in USB PHY). 1. Configure USB HS PHY into Low The STM32H7B3I-EVAL Evaluation board can be powered from a DC 5 V power supply via the external power supply socket (CN17) as shown in Figure 10.
  • Page 20 Hardware layout and configuration 6.5.3 Board power supply - SMPS/LDO configuration Figure 11. MCU power: SMPS/LDO STM32H7B3I-EVAL supports four “SMPS/LDO” configurations of the STM32H7B3LIH6Q microcontroller described in Table 1. LDO supply only 2. SMPS supply only (default configuration) 3. SMPS and LDO supplies cascaded 4.
  • Page 21 UM2662 Hardware layout and configuration Figure 12. Config1 - LDO only Figure 13. Config2 - SMPS only (default configuration) UM2662 - Rev 4 page 21/102...
  • Page 22 UM2662 Hardware layout and configuration Figure 14. Config3 - SMPS and LDO cascaded Figure 15. Config4 - external SMPS UM2662 - Rev 4 page 22/102...
  • Page 23 UM2662 Hardware layout and configuration Caution: A deadlock occurs if the board SMPS/LDO firmware PWR configuration does not match its hardware configuration: after the reset, ST-LINK cannot connect to the target anymore. The firmware PWR configuration must be set as follows in the SystemClock_Config function in the main.c file: •...
  • Page 24 UM2662 Hardware layout and configuration 6.5.5 Board power supply - VDDMMC STM32H7B3I-EVAL can provide either 1.8 or 3.3 V on the VDDMMC power rail of the STM32H7B3LIH6Q microcontroller. Figure 18. MCU power: VDDMMC This power rail can be used in different configurations: •...
  • Page 25 UM2662 Hardware layout and configuration Table 14. VDDMMC default hardware configuration for 3.3 V only functions Signal name Setting VDDMMC = '3.3 V only' OCSPI1_NCS (PG6) JP23 [1-2] 3V3_SW_ENABLE (MFX IO0) SB34 1V8_SW_ENABLE (MFX IO8) SB29 1. The default setting is in bold. 2.
  • Page 26 UM2662 Hardware layout and configuration Table 16. VDDMMC hardware configuration for '1.8/3.3 V' function (SDIO2) Signal name Setting VDDMMC configuration OCSPI1_NCS (PG6) JP23 [2-3] 3V3_SW_ENABLE (MFX IO0) SB34 1V8_SW_ENABLE (MFX IO8) SB29 1. The default setting is in bold. 2. PB8 signal is supplied by VDDMMC. Make sure to provide 3.3 V on VDDMMC. Refer to Section 6.5.5.
  • Page 27 UM2662 Hardware layout and configuration Figure 21. VDDIO_MMC switch schematic (page 21) Figure 22. VDDMMC schematic (page 9) UM2662 - Rev 4 page 27/102...
  • Page 28 Clock, reset, and boot 6.6.1 Clock source Two clock sources are available on the STM32H7B3I-EVAL Evaluation board for STM32H7B3LIH6Q and its embedded RTC, and other clock sources for their peripherals. • 24 MHz crystal X1 for the STM32H7B3LIH6Q microcontroller. It can be disconnected by removing R20 and R21 when the internal RC clock is used.
  • Page 29 UM2662 Hardware layout and configuration 6.6.2 Reset source The reset signal of the STM32H7B3I-EVAL Evaluation board is active LOW and the reset sources include: • Reset button (B1) • Debugging tools from JTAG/SWD connector (CN14) and ETM trace connector (CN15) •...
  • Page 30 UM2662 Hardware layout and configuration 6.7.3 Hardware configuration VCP ST-LINK UART on PB14/PB15 (default configuration) Table 21. STLINK-V3E VCP UART (PB14/P15: Default configuration) Pin name Setting STLINK-V3E VCP JP21/SB42 PB14 (MCU Tx) JP39 JP20/SB41 PB15 (MCU Rx) JP40 1. The default setting is in bold. VCP ST-LINK RS-232 UART on PA2/PA3 Important: Audio I2S6, USB HS, and motor control cannot be used with VCP UART PA2/PA3.
  • Page 31 UM2662 Hardware layout and configuration RS-232 UART on PA2/PA3 Important: Audio I2S6, USB HS, and motor control cannot be used with VCP UART PA2/PA3. Hardware modifications are listed in Table Table 24. RS-232 UART related jumpers (PA2/PA3: Bootloader) Pin name Setting STLINK-V3E VCP (Bootloader) JP21/SB42...
  • Page 32 UM2662 Hardware layout and configuration Audio 6.9.1 Description An audio codec is connected to either the I2S6 or SAI interface of STM32H7B3LIH6Q (refer to Table 26 configurations) to support the TDM feature. This feature implements audio recording on an analog microphone and audio playback of a different audio stream on headphones and lineout at the same time.
  • Page 33 6.9.4 Interface A 3.5 mm stereo audio jack (CN20) is available on the STM32H7B3I-EVAL Evaluation board to support the headset (headphone and microphone integrated). A 3.5 mm stereo audio jack (CN18) is available on the STM32H7B3I-EVAL Evaluation board to support external speaker.
  • Page 34 UM2662 Hardware layout and configuration 6.10 DFSDM microphones module (MB1299) 6.10.1 Description A DFSDM beam‑forming microphone module (MB1299) can be connected to STM32H7B3LIH6Q DFSDM interface through the CN4 connector. The MB1299 module embeds five DFSDM MEMS microphones: • One microphone for detection in the center (CLK_0, DATA_0) •...
  • Page 35 UM2662 Hardware layout and configuration 6.10.2 Operating voltage DFSDM microphone module supports only 3.3 V. Make sure to supply 3.3 V on VDDMMC. Refer to Section 6.5.5. 6.10.3 Limitations and hardware configuration • Limitations with camera primary functions • Limitations with USB HS and NOR flash secondary functions Hardware modifications are listed in Table Table 28.
  • Page 36 The red LED (LD10) is lit when overcurrent occurs (I superior to 500 mA). VBUS Note: An external power supply must power the STM32H7B3I-EVAL Evaluation board when using the OTG function. 6.11.2 Operating voltage The STM32H7B3LIH6Q USB OTG FS interface can only be at 3.3 V on this board.
  • Page 37 UM2662 Hardware layout and configuration 6.12 microSD™ card 1 6.12.1 Description ™ An 8 Gbyte (or more) microSD card connected to the SDIO1 3.0 port of STM32H7B3LIH6Q is available on the ™ board. SD_DETECT1 (PF10) manages the microSD card detection. 6.12.2 Operating voltage ™...
  • Page 38 EXT I C connector 6.13.1 Description I2C2 bus of STM32H7B3LIH6Q is connected to CN24 on STM32H7B3I-EVAL. The I C functional daughterboard can be mounted on CN24 and accessed by the microcontroller via the I2C2 bus. The MFX_GPO6 signal controls EXT_RESET.
  • Page 39 6.15.1 Description One 512-Mbit Octo‑SPI NOR flash memory is connected to the OCSPI1 interface of STM32H7B3LIH6Q on the STM32H7B3I-EVAL Evaluation board. 6.15.2 Operating voltage STM32H7B3LIH6Q OCSPI1 interface can only be at 3.3 V on this board. Make sure to supply 3.3 V on VDDMMC.
  • Page 40 UM2662 Hardware layout and configuration Hardware modifications are listed in Table Table 34. OCSPI1 hardware configuration Signal name Pin name Setting OCSPI1 OCSPI1_IO6/SDIO2_CK [1-2] OCSPI1_NCS/SD_LDO_SEL JP23 [1-2] 3V3_SW_ENABLE MFX IO0 SB34 1. The default setting is in bold. 2. PD6 signal is supplied by VDDMMC. Make sure to set MFX_IO0 to 1 to provide 3.3 V on VDDMMC. Refer to Section 6.5.5.
  • Page 41 UM2662 Hardware layout and configuration 6.16 Analog input 6.16.1 Description The two-pin header (CN7) and 10 kΩ potentiometer RV1 are connected to PA0_C of STM32H7B3LIH6Q as an analog input. A low-pass filter can be implemented by replacing R221 and C96 with the right value of resistor and capacitor as requested by the end user’s application.
  • Page 42 UM2662 Hardware layout and configuration 6.17 LCD module (MB1370) 6.17.1 Description The LCD module (MB1370) features a 7-inch 800x480 WVGA TFT color LCD. The LCD is connected to the STM32H7B3LIH6Q RGB (3x8 bits) interface. The capacitive touch panel is connected to the STM32H7B3LIH6Q I C interface.
  • Page 43 UM2662 Hardware layout and configuration Table 36. LCD module connector (CN23) Pin number Description Pin connection LCD CLK PI14 LCD R0 PI15 LCD R1 LCD R2 LCD R3 LCD R4 LCD R5 LCD R6 LCD R7 LCD G0 LCD G1 LCD G2 LCD G3 PJ10...
  • Page 44 UM2662 Hardware layout and configuration Table 37. CTP and LCD power connector (CN30) Description Pin connection Description Pin connection number number 3V3_AO 3.3V CTP I2C2 SDA CTP I2C2 SCL CTP RST PC4 (not used) CTP INT Table 38. LCD RESET hardware configuration Signal name R125 R126...
  • Page 45 UM2662 Hardware layout and configuration 6.18.2 Operating voltage STM32H7B3LIH6Q LEDs and buttons interface can only be at 3.3 V on this board. For LED1, make sure to supply 3.3 V on VDDMMC. Refer to Section 6.5.5. 6.19 Camera module (MB1379) 6.19.1 Description The camera module (MB1379) is connected to STM32H7B3LIH6Q DCMI and I...
  • Page 46 UM2662 Hardware layout and configuration Hardware modifications are listed in Table Table 42. Hardware modifications for the camera Pin name Signal name Setting Camera INT_USB_OTG_HS_OVRCR R108 DCMI_HSYNC (I2S6_WS cannot be used) [2-3] DCMI_D0 JP32 [1-2] FMC_NOR_NE1 JP35 DFSDM1_DATIN3 (Remove MB1299) JP35/R120 OFF/OFF DCMI_D1...
  • Page 47 UM2662 Hardware layout and configuration 6.19.4 Interface Figure 30. MB1379 MB1299 camera module connector (CN2) Table 43. MB1379 camera module connector (CN2) Pin number Description Pin connection Pin number Description Pin connection PH15 C SCL C SDA PLUG MFX IO4 RSTI MFX IO5 XSDN...
  • Page 48 UM2662 Hardware layout and configuration 6.20.3 Limitations and hardware configuration • Limitations with FMC A19, A21-23, trace, and SAI secondary functions ® I2C2 (PH4/PH5) is shared between EXT I C module (CN24), MB1486 Wi‑Fi module (U24), MFX I/O expander (U25), audio codec (U48), MB1379 camera module (CN2), and MB1370 LCD touch panel (CN30). Hardware modifications are listed in Table ®...
  • Page 49 UM2662 Hardware layout and configuration 6.20.4 Interface ® Figure 31. Wi‑Fi module interposer footprint (top view) UM2662 - Rev 4 page 49/102...
  • Page 50 UM2662 Hardware layout and configuration ® Table 45. Wi‑Fi module interposer connector U24 Description Pin connection Description Pin connection number number VDD_5V C SDA WIFI DATA RDY MFX IO2 C SCL WIFI BOOT MFX IO14 SPI MOSI NC (TP26) SPI NSS NC (TP27) PB15 or PA3 (NC by SPI SCK...
  • Page 51 6.21 MFX (multifunction expander) 6.21.1 Description The MFX circuit on the STM32H7B3I-EVAL Evaluation board acts as an I/O expander. The communication interface between MFX and STM32H7B3LIH6Q is the I2C2 bus. ® I2C2 (PH4/PH5) is shared between EXT I C module (CN24), MB1486 Wi‑Fi module (U24), MFX I/O expander (U25), audio codec (U48), MB1379 camera module (CN2), and MB1370 LCD touch panel (CN30).
  • Page 52 UM2662 Hardware layout and configuration 6.22 SRAM 6.22.1 Description 1 Mx16-bit SRAM is connected to bank1 NOR/PSRAM2 of the FMC interface. BLN0 and BLN1 respectively connected to SRAM BLE and BHE allow both 8-bit and 16-bit accesses. 6.22.2 Operating voltage STM32H7B3LIH6Q FMC interface (SDRAM, SRAM, and NOR) can only be at 3.3 V on this board.
  • Page 53 UM2662 Hardware layout and configuration 6.22.4 Limitations and hardware configuration for SRAM A19 (just for the test) ® • Limitations with Wi‑Fi SPI primary function • Limitations with SAI1 and TRACE secondary functions that cannot be used Hardware modifications are listed in Table Table 48.
  • Page 54 UM2662 Hardware layout and configuration 6.23 6.23.1 Description 128‑Mbit NOR flash memory is connected to bank1 NOR/PSRAM1 of the FMC interface. A pull-up resistor connected to the BYTE pin of the NOR flash memory selects the 16-bit operation mode. 6.23.2 Operating voltage STM32H7B3LIH6Q FMC interface (SDRAM, SRAM, and NOR) can only be at 3.3 V on this board.
  • Page 55 UM2662 Hardware layout and configuration 6.23.4 Limitations and hardware configuration for NOR A19-A22 (just for the test) ® • Limitations with the camera and Wi‑Fi SPI primary functions • Limitations with SAI1 and TRACE secondary functions Hardware modifications are listed in Table Table 50.
  • Page 56 UM2662 Hardware layout and configuration 6.24 ™ microSD card 2 6.24.1 Description ™ A microSD card connector connected to the SDIO2 3.0 port of STM32H7B3LIH6Q is available on the board. ™ SD_DETECT2 (PI11) manages the microSD card detection. It supports SD 3.0, SDR104, SDR50, DDR50, SDR25, SDR12, and SD 2.0 high-speed (50 MHz) and default speed (25 MHz) modes.
  • Page 57 UM2662 Hardware layout and configuration 6.24.4 Interface ™ Figure 32. microSD connector (CN3) ™ Table 52. microSD connector (CN3) Pin number Description Pin number Description SD_DATA2 (PG11) VSS/GND SD_DATA3 (PG12) SD_DATA0 (PG9) SD_CMD (PD7) SD_DATA1 (PG10) 3V3_SW SD_CLK (PD6) Micro SDcard_detect (PI11) UM2662 - Rev 4 page 57/102...
  • Page 58 NRST if needed by setting SB31 OFF and SB13 ON. The USB high-speed PHY (U7) REFCLK pin is connected to an external 24 MHz oscillator (X3). This USB connector (CN8) can power the STM32H7B3I-EVAL Evaluation board at 5 V DC with a 500 mA current limitation.
  • Page 59 UM2662 Hardware layout and configuration 6.25.4 Interface Table 54. USB OTG HS Micro-AB connector (CN8) Pin number Description Pin number Description from the power switch (U39) or to ID from the USB high speed (U7) the USB high speed (U7) D- from the USB high speed (U7) D+ from the USB high speed (U7) 6.26...
  • Page 60 Table 55 Table 56. These connectors are connected to the OCSPI2 interface of STM32H7B3LIH6Q on the STM32H7B3I-EVAL Evaluation board. Notice: Due to board design, as the OCSPI2 interface is shared with SDRAM and camera, it can only be tested at low speed (Maximum: 50 MHz).
  • Page 61 UM2662 Hardware layout and configuration Hardware modifications are listed in Table Table 57. OCSPI2 hardware configuration Signal name Pin name Setting OCSPI2 FMC_A0 R339 OCSPI2_IO0 FMC_A1 R335 OCSPI2_IO1 FMC_A2 R331 OCSPI2_IO2 FMC_A3 OCSPI2_IO3 FMC_A10 OCSPI2_IO4 FMC_A11 R333 OCSPI2_IO5 FMC_A4 OCSPI2_CLK R319 FMC_A5 OCSPI2_NCLK...
  • Page 62 UM2662 Hardware layout and configuration 6.27.4 Interface Figure 33. OCSPI module connectors (CN10 and CN11) Find the left CN10 pinout in Table Table 58. Left OCSPI module (CN10) pinout Description Pin connection Description Pin connection number number OCSPI2_NCS PG12 3V3_AO 3V3_AO OCSPI2_IO0 3V3_AO...
  • Page 63 6.28.1 Description The STM32H7B3I-EVAL Evaluation board supports one channel of flexible data rate CAN, CAN‑FD-compliant bus‑communication based on a 3.3 V CAN transceiver. To use CAN FD, fit SB36 and SB35 solder bridges (And remove these solder bridges when using 1.
  • Page 64 UM2662 Hardware layout and configuration Table 60. CAN D-type 9-pin male connector (CN22) pinout Pin number Description Pin number Description 1,4,8,9 CANH CANL 3,5,6 6.29 Motor control 6.29.1 Description Motor-control functions can be accessed: • Either through the 17x2 legacy connector (CN1), •...
  • Page 65 UM2662 Hardware layout and configuration Pin name MCU function Motor-control function R363 R364 INT_JOY_LEFT JOYSTICK LEFT R386 R128 INT_JOY_RIGHT JOYSTICK RIGHT R360 R351 INT_JOY_SEL JOYSTICK SEL PH13 R389 R131 INT_JOY_UP JOYSTICK UP R301 R308 TIM1_CH1 PWM_1H TIM1_CH1N PWM_1L R294 TIM1_CH2 PWM_2H PB14 R304...
  • Page 66 UM2662 Hardware layout and configuration Pin name MCU function Motor-control function R284 R285 DFSDM1_CKIN4 MOTOR_DFSDM1_CKIN4 R238 DFSDM1_CKIN5 MOTOR_DFSDM1_CKIN5 DFSDM1_CKIN7 MOTOR_DFSDM1_CKIN7 PB12 JP19 [1-2] DFSDM1_DATIN1 MOTOR_DFSDM1_DATIN1 JP35 [2-3] DFSDM1_DATIN3 MOTOR_DFSDM1_DATIN3 PE10 R341 DFSDM1_DATIN4 MOTOR_DFSDM1_DATIN4 DFSDM1_DATIN5 MOTOR_DFSDM1_DATIN5 R233 DFSDM1_DATIN7 MOTOR_DFSDM1_DATIN7 R367 R368 INT_JOY_DOWN JOYSTICK DOWN R363...
  • Page 67 Table Table 65, and Table Table 63. Memory connector (CN12) left odd pins How to disconnect with function Pin number Pin name STM32H7B3I-EVAL pin name block on STM32H7B3I- EVAL board FMC_SDR_SDNE1 PF13 FMC_A7 R325 FMC_A6 || MOTOR_ADC1_INP6 R326 PF12 FMC_A11 || OCSPI2_IO5...
  • Page 68 UM2662 Hardware layout and configuration Table 64. Memory connector (CN12) left even pins How to disconnect with function Pin number Pin name STM32H7B3I-EVAL pin name block on STM32H7B3I- EVAL board FMC_SDR_SDNWE || MOTOR_ADC12_INP7 R322 PF14 FMC_A8 FMC_A10 || OCSPI2_IO4 PF11...
  • Page 69 Table 65. Memory connector (CN13) right odd pins How to disconnect with function Pin number Pin name STM32H7B3I-EVAL pin name block on STM32H7B3I- EVAL board FMC_A5 || OCSPI2_NCLK FMC_A4 || OCSPI2_CLK FMC_A3 || OCSPI2_IO3 WIFI_SPI4_MOSI || SAI1_SD_A || FMC_A22 || TRACED3 ||...
  • Page 70 Hardware layout and configuration Table 66. Memory connector (CN13) right even pins How to disconnect with function Pin number Pin name STM32H7B3I-EVAL pin name block on STM32H7B3I- EVAL board FMC_SDR_SDCKE1 R320 WIFI_SPI4_MISO || SAI1_SCK_A || FMC_A21 || TRACED2 || MOTOR_TIM15_CH1...
  • Page 71 Daughterboard extension connectors (CN5 and CN6) Two 60-pin male headers (CN5 and CN6) can be used to connect with a daughterboard or a standard wrapping board to the STM32H7B3I-EVAL Evaluation board. All GPIOs are available on them and memory connectors (CN12 and CN13).
  • Page 72 UM2662 Hardware layout and configuration Table 68. Daughterboard extension connector (CN6) left even pins Pin number Pin name Pin function How to disconnect PC2_C FREE ADC PC3_C MOTOR_ADC2_INP1 R219 OSC_OUT R20/SB6 KEY_WKUP0 || MOTOR_TIM2_CH1 R229 LCD_BL_CTRL || MOTOR_TIM2_CH2 R236 LCD_RESET || MOTOR_TIM2_CH3 || BOOTLOADER_VCP_TX JP40 PA0_C Potentiometer || ADC_IN_P...
  • Page 73 UM2662 Hardware layout and configuration Table 69. Daughterboard extension connector (CN5) right odd pins Pin number Pin name Pin function How to disconnect PI12 RGB_LCD_HSYNC R215 PC15 OSC32_OUT PI14 RGB_LCD_CLK R226 PF10 INT_uSDCard_Detect1 DCMI_D7 || DFSDM1_DATIN7 R104 DCMI_D6 || MEMS_LED || MOTOR_DFSDM1_CKIN7 R110 INT_USB_OTG_FS_OVRCR || MOTOR_DFSDM1_CKIN5 RGB_LCD_B7...
  • Page 74 UM2662 Hardware layout and configuration Table 70. Daughterboard extension connector (CN5) right even pins Pin number Pin name Pin function How to disconnect PI13 RGB_LCD_VSYNC R214 PC14 OSC32_IN PC13 KEY_TAMP_1/WKUP2 INT_MFX_IRQ_OUT R168 DCMI_PIXCLK || I2S6_EXT_SD_BKUP || MOTOR_TIM1_BKIN I2S6_EXT_SD || NJTRST JTDO/TRACESWO RGB_LCD_DE R248...
  • Page 75 UM2662 STM32H7B3I-EVAL I/O assignment STM32H7B3I-EVAL I/O assignment Table 71. STM32H7B3I-EVAL I/O assignment Main function pinout Optional function pinout LQFP144 pinout Pin name Motor-control connector assignment assignment TRACE_CLK SRAM-FMC_A19 SRAM-FMC_A20 TRACE_D2 LCD_RS_FMC_A22 TRACE_D3 VBAT POWER PC13 User button WKUP2 TAMPER KEY...
  • Page 76 UM2662 STM32H7B3I-EVAL I/O assignment Main function pinout Optional function pinout LQFP144 pinout Pin name Motor-control connector assignment assignment OCTOSPI_CLK OPAMP1_VOUT ADC12_IN8 POWER POWER ADC12_IN9/DAC1_OUT1 UCPD_ADC12_IN9 STMOD+_SPI3_NSS ADC12_IN9 PMOD_SPI3_NSS LCD_BL_CTRL TIM2_CH1 STMOD+_TIM2_CH1 OCTOSPI_IO3 ADC12_IN11 OCTOSPI_IO2 TIM8_CH1N OCTOSPI_IO1 TIM8_CH2N OCTOSPI_IO0 TIM8_CH3N OCTOSPI_DQS...
  • Page 77 UM2662 STM32H7B3I-EVAL I/O assignment Main function pinout Optional function pinout LQFP144 pinout Pin name Motor-control connector assignment assignment POWER POWER POWER STMOD+_LPUART1_CTS PB13 RS-232 LPUART1_CTS PMOD_LPUART1_CTS PB14 UCPD_DB2 PB15 UCPD_CC2 LCD-SRAM-FMC_D13 LCD-SRAM-FMC_D14 PD10 LCD-SRAM-FMC_D15 PD11 SRAM-FMC_A16 PD12 SRAM-FMC_A17 PD13 SRAM-FMC_A18...
  • Page 78 UM2662 STM32H7B3I-EVAL I/O assignment Main function pinout Optional function pinout LQFP144 pinout Pin name Motor-control connector assignment assignment VDDUSB POWER POWER POWER PA14 SWCLK JTAG_JTCK PA15 UCPD_CC JTAG_JTDI PC10 SDIO_D2 TRACE_D1 PC11 SDIO_D3 STMOD+_SPI3_MOSI PC12 SDIO1_CK PMOD_SPI3_MOSI LCD-SRAM-FMC_D2 LCD-SRAM-FMC_D3 SDIO1_CMD...
  • Page 79 UM2662 STM32H7B3I-EVAL I/O assignment Main function pinout Optional function pinout LQFP144 pinout Pin name Motor-control connector assignment assignment SRAM_FMC_NBL0 SRAM_FMC_NBL1 POWER POWER POWER UM2662 - Rev 4 page 79/102...
  • Page 80 UM2662 MFX I/O assignment MFX I/O assignment Table 72. MFX I/O assignment Signal name Pin name WIFI_SPI4_SCK MFX IO0 MFX_3V3_SW_ENABLE MFX IO1 MFX_WIFI_GPIO MFX IO2 MFX_WIFI_DATRDY MFX IO3 MFX_Audio_RST MFX IO4 MFX_Camera_PLUG_IN MFX IO5 MFX_Camera_RSTI MFX IO6 MFX_Camera_XSDN MFX IO7 MFX_USB_OTG_FS_PWR_EN MFX IO8 MFX_1V8_SW_ENABLE...
  • Page 81 UM2662 Primary functions supported by default Primary functions supported by default Two main use-case combinations are supported by default on the board with no limitations between these 'primary' functions, and no hardware rework needed: Use case 1 (Audio) The following functions can be used at the same time without any limitations from each other: •...
  • Page 82 UM2662 Primary functions supported by default Figure 37. Primary features - use case compatibility matrix UM2662 - Rev 4 page 82/102...
  • Page 83 UM2662 Secondary functions supported with limitations Secondary functions supported with limitations The following secondary functions have limitations and cannot be used together with at least one of the primary functions supported by default on the board: • • SRAM • OCSPI2 •...
  • Page 84 Products and parts labeled as “ES” or “E” are not yet qualified or feature devices that are not yet qualified. STMicroelectronics disclaims any responsibility for consequences arising from their use. Under no circumstances will STMicroelectronics be liable for the customer's use of these engineering samples. Before deciding to use these engineering samples for qualification activities, contact STMicroelectronics' quality department.
  • Page 85 UM2662 STM32H7B3I-EVAL product information 11.2 STM32H7B3I-EVAL product history Table 73. Product history Order Product Product details Product change description Product limitations code identification MCU: • STM32H7B3LIH6Q silicon revision "Z" MCU errata sheet: • STM32H7A3xI/G, STM32H7B0xB and STM32H7B3xI device errata (ES0478)
  • Page 86 UM2662 STM32H7B3I-EVAL product information 11.3 Board revision history Table 74. Board revision history Board reference Board variant and revision Board change description Board limitations H7B3LIQ-D03 Initial revision No limitation Several part references are updated MB1331 due to obsolescence, such as...
  • Page 87 (2) this device must accept any interference received, including interference that may cause undesired operation. Part 15.21 Any changes or modifications to this equipment not expressly approved by STMicroelectronics may cause harmful interference and void the user's authority to operate this equipment. Part 15.105 This equipment has been tested and found to comply with the limits for a Class A digital device, pursuant to part 15 of the FCC Rules.
  • Page 88 UM2662 Federal Communications Commission (FCC) and ISED Canada Compliance Statements Déclaration de conformité Avis: Le présent appareil est conforme aux CNR d'ISDE Canada applicables aux appareils radio exempts de licence. L'exploitation est autorisée aux deux conditions suivantes : (1) l'appareil ne doit pas produire de brouillage, et (2) l'utilisateur de l'appareil doit accepter tout brouillage radioélectrique subi, même si le brouillage est susceptible d'en compromettre le fonctionnement.
  • Page 89 UKCA Compliance Statement SIMPLIFIED UK DECLARATION OF CONFORMITY Hereby, the manufacturer STMicroelectronics, declares that the radio equipment type “STM32H7B3I-EVAL” is in compliance with the UK Radio Equipment Regulations 2017 (UK S.I. 2017 No. 1206). The full text of the UK Declaration of Conformity is available at the following internet address: www.st.com.
  • Page 90 RED Compliance Statement Simplified EU declaration of conformity Hereby, STMicroelectronics declares that the radio equipment type "STM32H7B3I-EVAL" is in compliance with Directive 2014/53/EU. The full text of the EU declaration of conformity is available on demand at the following internet address: www.st.com.
  • Page 91 UM2662 Product disposal Product disposal Disposal of this product: WEEE (Waste Electrical and Electronic Equipment) (Applicable in Europe) This symbol on the product, accessories, or accompanying documents indicates that the product and its electronic accessories should not be disposed of with household waste at the end of their working life.
  • Page 92 UM2662 Known limitations of demonstration firmware Known limitations of demonstration firmware • Embedded Wizard and Clock&weather: Moving background (moving wave) behind the main background when the LCD dithering feature is enabled • TouchGFX: Blinds Control - the kitchen and desk icons cannot be unselected once they are already selected •...
  • Page 93 Corrected supply config 1 title and R22 setting in Table 10. 07-Jul-2020 Added Section Appendix G Known limitations of demonstration firmware. • Reshuffled complete document to standards. • Added STM32H7B3I-EVAL product information with new Product history Board revision 15-Apr-2025 history tables.
  • Page 94 STM32H7B3I-EVAL mechanical drawing ........
  • Page 95 UM2662 Contents 6.6.2 Reset source............29 6.6.3 Boot option .
  • Page 96 UM2662 Contents 6.14.2 Operating voltage ............38 6.14.3 Limitations and hardware configuration .
  • Page 97 STM32H7B3I-EVAL I/O assignment ........
  • Page 98 STM32H7B3I-EVAL product information ........
  • Page 99 UM2662 List of tables List of tables Table 1. List of available products............. . . 3 Table 2.
  • Page 100 STM32H7B3I-EVAL I/O assignment ........
  • Page 101 STM32H7B3I-EVAL Evaluation board (top view) ........
  • Page 102 IMPORTANT NOTICE – READ CAREFULLY STMicroelectronics NV and its subsidiaries (“ST”) reserve the right to make changes, corrections, enhancements, modifications, and improvements to ST products and/or to this document at any time without notice. Purchasers should obtain the latest relevant information on ST products before placing orders. ST products are sold pursuant to ST’s terms and conditions of sale in place at the time of order acknowledgment.