Hardware modifications are listed in
Pin name
PF0
PF1
PF2
PF3
PG0
PG1
PF4
PF5
PG15
1. The default setting is in bold.
2. Remove to avoid stub if necessary.
7.7
Octo-SPI NOR Flash 1
7.7.1
Description
One 512-Mbit Octo-SPI NOR Flash Macronix MX25LM51245GXDI00 is connected to OCSPI1 interface of
STM32H7B3LIH6QU on the STM32H7B3I-EVAL Evaluation board.
7.7.2
Operating voltage
STM32H7B3LIH6QU OCSPI1 interface can only be at 3.3 V on this board. Make sure to supply 3.3 V on
VDDMMC (Refer to
7.7.3
Limitations and hardware configuration
Limitations with secondary function: SDIO2.
UM2662 - Rev 1
Table
32:
Table 32.
Hardware configuration for SDRAM
Signal name
FMC_A0
OCSPI2_IO0
FMC_A1
OCSPI2_IO1
FMC_A2
OCSPI2_IO2
FMC_A3
OCSPI2_IO3
FMC_A10
OCSPI2_IO4
FMC_A11
OCSPI2_IO5
FMC_A4
OCSPI2_CLK
FMC_A5
OCSPI2_NCLK
FMC_SDNCAS
OCSPI2_DQS
Section 6.3.5
).
Octo-SPI NOR Flash 1
Setting
SDRAM
R339
R98
R335
R89
R331
R82
R74
R75
R73
R76
R333
R77
R66
R319
R65
R318
R352
R354
UM2662
(1)
ON
(2)
OFF
ON
OFF
(2)
ON
OFF
(2)
ON
(2)
OFF
ON
(2)
OFF
ON
(2)
OFF
ON
(2)
OFF
ON
(2)
OFF
ON
(2)
OFF
page 38/95
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