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2020-11-17 08:25:50 -05:00 · 2020-11-17 08:25:50 -05:00 · 4d89095890
parent f9ae075ac6
commit 4d89095890
1 changed files with 5 additions and 0 deletions
--- a/firmware/hw_layer/mmc_card.cpp
+++ b/firmware/hw_layer/mmc_card.cpp
@ -51,6 +51,11 @@ static int writeCounter = 0;
 static int totalWritesCounter = 0;
 static int totalSyncCounter = 0;

+/**
+ * on't re-read SD card spi device after boot - it could change mid transaction (TS thread could preempt),
+ * which will cause disaster (usually multiple-unlock of the same mutex in UNLOCK_SD_SPI)
+ */
+
 spi_device_e mmcSpiDevice = SPI_NONE;

 #define LOG_INDEX_FILENAME "index.txt"