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Fix SDIO buffer alignment (#21396)

vanilla_fb_2.0.x
ldursw 4 years ago
committed by GitHub
parent
commit
d172c71376
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  1. 7
      Marlin/src/feature/binary_stream.h

7
Marlin/src/feature/binary_stream.h

@ -39,7 +39,12 @@ inline int bs_read_serial(const serial_index_t index) {
#if ENABLED(BINARY_STREAM_COMPRESSION) #if ENABLED(BINARY_STREAM_COMPRESSION)
static heatshrink_decoder hsd; static heatshrink_decoder hsd;
static uint8_t decode_buffer[512] = {}; #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 #endif
class SDFileTransferProtocol { class SDFileTransferProtocol {

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