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Fastest sd clockrate possible with sandisk ultra 32gb card
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This commit is contained in:
Stefan Kratochwil
2025-10-14 20:27:41 +02:00
parent 502805e2e8
commit 5f9bdb2517
1 changed files with 3 additions and 3 deletions
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6
software/src/hwconfig_Rev1.py
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@@ -9,7 +9,7 @@ SD_DI = Pin.board.GP3
SD_DO = Pin.board.GP4 SD_DO = Pin.board.GP4
SD_SCK = Pin.board.GP2 SD_SCK = Pin.board.GP2
SD_CS = Pin.board.GP5 SD_CS = Pin.board.GP5
SD_CLOCKRATE = 25000000 SD_CLOCKRATE = 16000000
# MAX98357 # MAX98357
I2S_LRCLK = Pin.board.GP6 I2S_LRCLK = Pin.board.GP6
@@ -49,8 +49,8 @@ def board_init():
# SD_DO / MISO input doesn't need any special configuration # SD_DO / MISO input doesn't need any special configuration
# Set 8 mA drive strength for SCK and MOSI # Set 8 mA drive strength for SCK and MOSI
machine.mem32[0x4001c004 + 2*4] = 0x60 # SCK machine.mem32[0x4001c004 + 2*4] = 0x71 # SCK
machine.mem32[0x4001c004 + 3*4] = 0x60 # MOSI machine.mem32[0x4001c004 + 3*4] = 0x71 # MOSI
# SD_CS doesn't need any special configuration # SD_CS doesn't need any special configuration
# Permanently enable amplifier # Permanently enable amplifier