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- fix for #244, byte-order wrong for LSBFIRST buffer transfers #246

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Merged
merged 1 commit into from
Jan 22, 2024
Merged

- fix for #244, byte-order wrong for LSBFIRST buffer transfers #246

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2 changes: 1 addition & 1 deletion libraries/SPI/SPI.cpp
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Original file line number Diff line number Diff line change
Expand Up @@ -444,7 +444,7 @@ void ArduinoSPI::configSpi(arduino::SPISettings const & settings)

/* register undocumented for the RA4M1 but found to be working and necessary */
/* BYSW - Byte Swap Operating Mode Select - 1 = Byte Swap ON - essential for 32 bit transfers */
_spi_ctrl.p_regs->SPDCR2_b.BYSW = 1;
_spi_ctrl.p_regs->SPDCR2_b.BYSW = ~bit_order;

_spi_ctrl.p_regs->SPCKD = 0;

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