Table of Contents
NUCLEO-H755ZI-Q
Dual core STM32H755ZI MCU with Cortex-M7 at 480MHz and Cortex-M4 at 240MHz with 2MB Flash and 1MB RAM.
The Q suffix indicates that this processor and board contains a SMPS.
The user manual explains that the SMPS must be enabled in firmware otherwise there will no connection to the device over ST-LINK.
Pinout
PB6 USART1_TX ARDUINO D1 TX PB7 USART1_RX ARDUINO D0 RX PD8 USART3_TX VCP_TX PD9 USART3_RX VCP_RX LED PB0 LD1 GREEN PE1 LD2 YELLOW PB14 LD3 RED OSC32 X3 NX3215SA 32.768KHz
RAM
| Address | Type | Size | Alias |
|---|---|---|---|
| 0x00000000 .. 0x0000FFFF | ITCM (CM7) | 64KB | |
| 0x20000000 .. 0x2001FFFF | DTCM (CM7) | 128KB | |
| 0x24000000 .. 0x2407FFFF | AXI SRAM | 512KB | |
| 0x30000000 .. 0x3001FFFF | SRAM1 | 128KB | 0x10000000 .. 0x1001FFFF |
| 0x30020000 .. 0x3003FFFF | SRAM2 | 128KB | 0x10020000 .. 0x1003FFFF |
| 0x30040000 .. 0x30047FFF | SRAM3 | 32KB | 0x10040000 .. 0x10047FFF |
| 0x38000000 .. 0x3800FFFF | SRAM4 | 64KB | |
| 0x38800000 .. 0x38800FFF | BACKUP SRAM | 4KB |