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merge into: TonBERRY:main
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TonBERRY:main TonBERRY:more-frontend TonBERRY:mbl-next TonBERRY:30-frontend TonBERRY:webapi-last-tag-uid TonBERRY:experiment-max-drstr-fast-slr TonBERRY:bug/playback_not_starting_after_por TonBERRY:docu/architecture TonBERRY:update-README TonBERRY:simple-webrequest
TonBERRY:pcb-rev1.2 TonBERRY:pcb-rev1
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pull from: TonBERRY:experiment-max-drstr-fast-slr
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TonBERRY:more-frontend TonBERRY:mbl-next TonBERRY:30-frontend TonBERRY:webapi-last-tag-uid TonBERRY:main TonBERRY:experiment-max-drstr-fast-slr TonBERRY:bug/playback_not_starting_after_por TonBERRY:docu/architecture TonBERRY:update-README TonBERRY:simple-webrequest
TonBERRY:pcb-rev1.2 TonBERRY:pcb-rev1

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main ... experiment

Author SHA1 Message Date
Stefan Kratochwil
5f9bdb2517 Fastest sd clockrate possible with sandisk ultra 32gb card
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2025-10-14 20:27:41 +02:00
1 changed files with 3 additions and 3 deletions
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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