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SAMD21: one endpoint pair for MSC now instead of two #4239

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Feb 22, 2021
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SAMD21: one endpoint pair for MSC now instead of two #4239

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6 changes: 2 additions & 4 deletions ports/atmel-samd/mpconfigport.mk
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Original file line number Diff line number Diff line change
Expand Up @@ -48,10 +48,8 @@ CIRCUITPY_SDCARDIO ?= 0
# Not enough RAM for framebuffers
CIRCUITPY_FRAMEBUFFERIO ?= 0

# SAMD21 needs separate endpoint pairs for MSC BULK IN and BULK OUT, otherwise it's erratic.
# Because of that, there aren't enough endpoints for a secondary CDC serial connection.
USB_MSC_EP_NUM_OUT = 1
CIRCUITPY_USB_CDC = 0
# Not enough room in 192kB or 256kB builds for secondary CDC.
CIRCUITPY_USB_CDC ?= 0

CIRCUITPY_ULAB = 0

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