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ChainingBlockDevice example to show how to format a FATFileSystem on two blocks of storage
Fork of MBRBlockDevice_ex_1 by
main.cpp@1:8ad9777787ba, 2017-10-18 (annotated)
- Committer:
- kgilbert
- Date:
- Wed Oct 18 20:03:25 2017 +0000
- Revision:
- 1:8ad9777787ba
- Parent:
- 0:daa62d7aa9f9
Add source for example
Who changed what in which revision?
User | Revision | Line number | New contents of line |
---|---|---|---|
kgilbert | 0:daa62d7aa9f9 | 1 | #include "mbed.h" |
kgilbert | 0:daa62d7aa9f9 | 2 | #include "HeapBlockDevice.h" |
kgilbert | 1:8ad9777787ba | 3 | #include "ChainingBlockDevice.h" |
kgilbert | 1:8ad9777787ba | 4 | #include "FATFileSystem.h" |
kgilbert | 0:daa62d7aa9f9 | 5 | |
kgilbert | 0:daa62d7aa9f9 | 6 | int main(void) { |
kgilbert | 1:8ad9777787ba | 7 | // Create two smaller block devices with |
kgilbert | 1:8ad9777787ba | 8 | // 64 and 32 blocks of size 512 bytes |
kgilbert | 1:8ad9777787ba | 9 | HeapBlockDevice mem1(64*512, 512); |
kgilbert | 1:8ad9777787ba | 10 | HeapBlockDevice mem2(32*512, 512); |
kgilbert | 0:daa62d7aa9f9 | 11 | |
kgilbert | 1:8ad9777787ba | 12 | // Create a block device backed by mem1 and mem2 |
kgilbert | 1:8ad9777787ba | 13 | // contains 96 blocks of size 512 bytes |
kgilbert | 1:8ad9777787ba | 14 | BlockDevice *bds[] = {&mem1, &mem2}; |
kgilbert | 1:8ad9777787ba | 15 | ChainingBlockDevice chainmem(bds); |
kgilbert | 0:daa62d7aa9f9 | 16 | |
kgilbert | 1:8ad9777787ba | 17 | // Format the new chained block device with a FAT filesystem |
kgilbert | 1:8ad9777787ba | 18 | FATFileSystem::format(&chainmem); |
kgilbert | 1:8ad9777787ba | 19 | |
kgilbert | 1:8ad9777787ba | 20 | // Create the FAT filesystem instance, files can now be written to |
kgilbert | 1:8ad9777787ba | 21 | // the FAT filesystem as if to a single 96 x 512 byte storage device |
kgilbert | 1:8ad9777787ba | 22 | FATFileSystem fat("fat", &chainmem); |
kgilbert | 0:daa62d7aa9f9 | 23 | } |