Table of Contents

NUCLEO-H7A3ZI-Q

h7a3ziq.jpg

STM32H7A3

Pinout

Cortex-M7 MCU at 280 MHz.

The Q suffix indicates that this processor contains a SMPS.

The user manual explains that the SMPS must be enabled in firmware otherwise there can be problems connecting to the device over ST-LINK.

RAM

Address TypeSizeAlias
0x00000000 .. 0x0000FFFFITCM 64KB
0x20000000 .. 0x2001FFFFDTCM 128KB
0x24000000 .. 0x2403FFFFAXI SRAM1 256KB
0x24040000 .. 0x2409FFFFAXI SRAM2 384KB
0x240A0000 .. 0x240FFFFFAXI SRAM3 384KB
0x30000000 .. 0x3000FFFFAHB SRAM1 64KB
0x30010000 .. 0x3801FFFFAHB SRAM2 64KB
0x38000000 .. 0x38007FFFSRD SRAM 32KB
0x38800000 .. 0x38800FFFBACKUP SRAM 4KB

Demo

See here for a Modbus demo using this board.

Resources

Product page

User manual

Schematic

MCU datasheet

MCU reference manual