File System (Mdf) Task Processing Function - Fujitsu FM3 family User Manual

7.2.8.3

File System (MDF) Task Processing Function

File System (MDF) processing is executed. (av_demoapp_MDF_task)
After reading MBR (*1) and PBR (*2) data, the number of blocks for each sector is
calculated.
When the MDF file system is initialized, media read and write processing is registered.
Start
MDF operation stage judgment
File open
File close
Initialization
Action
Others
Finish
Figure 59 File System (MDF) Task Processing Function
(*1) Master Boot Record
(*2) Partition Boot Record
Audio stage initialized?
Yes
MDF close processing
(av_demoapp_MDF_close)
Set MDF stage for initialization stage.
84
AN706-00040-2v0-E
MDF open processing
(av_demoapp_MDF_open)
No
MDF opened successfully
Yes
Set action stage for MDF stage.
Light LED 1.
No