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Fix SDIO buffer alignment (#21396)

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ldursw 2021-03-24 11:30:19 -03:00 committed by Scott Lahteine
parent e087271d48
commit 2a32d14dc4
1 changed files with 6 additions and 1 deletions
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5
Marlin/src/feature/binary_stream.h
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@ -39,8 +39,13 @@ inline int bs_read_serial(const serial_index_t index) {
#if ENABLED(BINARY_STREAM_COMPRESSION)
static heatshrink_decoder hsd;
#ifdef BOTH(ARDUINO_ARCH_STM32F1, SDIO_SUPPORT)
// STM32 requires a word-aligned buffer for SD card transfers via DMA
static __attribute__((aligned(sizeof(size_t)))) uint8_t decode_buffer[512] = {};
#else
static uint8_t decode_buffer[512] = {};
#endif
#endif
class SDFileTransferProtocol {
private: