Need bit details about STM32H743VG. 1. Does it has the external memory ? 2. It has five SPIs . Does these SPI pins available on the expansion interface ? 3. Does these SPI can operate on QUAD mode ?

[Tesla DeLorean]

YES

NO

NO

There's a specific QUADSPI peripheral, it can't memory map two independent devices. It can side-stack a pair of the same memories in a "bank" mode so the bytes from two NOR FLASH devices interleave, allowing for the doubling of bandwidth.

[Gpras.1]

Thank you. We are looking for an MCU which has SPI (at least 4 with minimum throughput from each one is around 80Mbps ).

and runs @500+ Mhz with external memory, network interface, encryption engine. Important thing is that we need those SPI available on the expansion interface to connect the sensor. Do you have any suggestion ?

[Gpras.1]

Do you have any suggestion to connect those SPI pins on the STM32H743VG eval board ? if not, is there any alternative board with which we can connect a slave device to those SPI ?

[Tesla DeLorean]

Perhaps use a CPLD/FPGA, on a 32-bit wide FMC bus interface (memory mapped, external), to mitigate the interactions between the MCU and the sensors.

Parts using Cortex-A MCU might be a better choice, or FPGA integrating a core.

[Tesla DeLorean]

Which board?

The EVAL series boards tend to be highly committed to the kitchen-sink functionality on the board. DISCO's also tend to be problematic, mostly having the Arduino Shield pins free for interaction.

The NUCLEO-144 boards tend to offer the most freely assignable pins, you'll need to map out pin usage via the Data Sheet. CubeMX/IDE might help, I'm more of a pencil and paper guy, as "not working" tends to blow back directly on me.

There are a bunch of WeAct, DevEBox H7 breakout boards on the AliExpress type markets. WaveShare also has some of their own.

[Pavel A.]

> runs @500+ Mhz with external memory ....

For STM743 this is quite an overclocking. STM32H72x/73x run at 550 MHz and there is a Nucleo with it.

When connecting a SPI device to Nucleo board, keep in mind that flying long wires won't allow a decent bitrate (with normal connection on the PCB our slave devices work at their nominal bitrates ~ 40 Mbit/s, but we could not get more than 7-10 Mbit/s with flying wires.)

[Gpras.1]

Hi Pavel A .

Thanks for the response. I have looked into the Nucleo board for STM32H743ZIT6. It seems that external memory is not mounted on the board though processor support it. Is this understanding correct ? If yes, do you have any variant of Nucleo board with STM32H743ZIT6 that support the external memory.

[Gpras.1]

Hi Pavel A

Can you please guide me to place where I can download the board schematic of the STM32 Nucleo-144 development board with STM32H753ZI MCU ?

[Tesla DeLorean]

Go the the CAD Resources tab on the NUCLEO boards​ page