From c3cd83ba12679aeaa68af34cd92a5581774e2535 Mon Sep 17 00:00:00 2001 From: Max Prokhorov Date: Thu, 14 Jul 2022 14:55:10 +0300 Subject: [PATCH] SPI: writePattern() should not call setDataBits(0) resolves #8635 --- libraries/SPI/SPI.cpp | 8 +++++--- 1 file changed, 5 insertions(+), 3 deletions(-) diff --git a/libraries/SPI/SPI.cpp b/libraries/SPI/SPI.cpp index 93bb027486..2650998b69 100644 --- a/libraries/SPI/SPI.cpp +++ b/libraries/SPI/SPI.cpp @@ -515,9 +515,11 @@ void SPIClass::writePattern(const uint8_t * data, uint8_t size, uint32_t repeat) } } //End orig - setDataBits(repeatRem * 8); - SPI1CMD |= SPIBUSY; - while(SPI1CMD & SPIBUSY) {} + if (repeatRem) { + setDataBits(repeatRem * 8); + SPI1CMD |= SPIBUSY; + while(SPI1CMD & SPIBUSY) {} + } SPI1U = SPIUMOSI | SPIUDUPLEX | SPIUSSE; } pFad - Phonifier reborn

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