Correct calculation of the erase sector size

The specification states that the real value is obtained by increasing by one the value extracted from the csd register.
PelionIoT · Aug 13, 2017 · f3be7cb · f3be7cb
1 parent 2d24758
commit f3be7cb
Showing 1 changed file with 1 addition and 1 deletion.
diff --git a/SDBlockDevice.cpp b/SDBlockDevice.cpp
@@ -941,7 +941,7 @@ uint32_t SDBlockDevice::_sd_sectors() {
                 _erase_size = BLOCK_SIZE_HC;
             } else {
                 // ERASE_BLK_EN = 1: Erase in multiple of SECTOR_SIZE supported
-                _erase_size = ext_bits(csd, 45, 39);
+                _erase_size = ext_bits(csd, 45, 39) + 1;
             }
             break;