USB-FILESYS-DIL HEXWAX, USB-FILESYS-DIL Datasheet
USB-FILESYS-DIL
Specifications of USB-FILESYS-DIL
Related parts for USB-FILESYS-DIL
USB-FILESYS-DIL Summary of contents
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... Summary USB-FileSys is a low cost USB FAT file system. Its memory area is accessed by a host controller using SPI commands, and, when plugged into a USB port, simultaneously appears like a file system on a removable disk. For low duty configuration and diagnostic applications, USB-FileSys can use its own on-chip pre-formatted 8kByte flash memory area ...
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... USB Voltage Sense This input should be high when the device is plugged into a USB host. Refer to figure 5 for a typical method of deriving this input from the USB supply input. USB Activity Indication Output that can either be used for connecting to an activity indication LED, or for generating an interrupt when an USB write event occurs ...
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... USB-FileSys, waiting for a byte with a value other than 0xFF. The Write File and Set File Entry commands are each composed of two such Command-Response exchanges. USB-FileSys has been tested with SPI clock rates up to 1MHz. Memory Internal Memory ...
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... The micro connector pin-out is the same as the mini connector. If 25AA1024 Std Mini – 4 For ultra-low cost products possible to form a USB Type-A plug direct from a circuit board as shown in figure 6. This connector is only suitable for a limited number of insertions (~50 before cleaning is required). USB-FileSys / USB-Config 24AA1024 Vcc Vdd Serial ...
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... Executing Commands While PC Connected Executing commands while the PC is connected is problematic, but possible. USB-FileSys will ensure that the PC and the host do not simultaneously modify the volume. Nevertheless, care should be taken if the host modifies any files while the device is connected to a PC. ...
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... Byte 22-25 26-27 28-31 ‡ Supported by USB-FileSys in certain cases, see Close command Get File Entry By Short Name Same as Get File Entry command, except searches for a file that matches the name and attributes supplied. The first byte of the command is the value 0x04. The next 8 bytes are the file name, padded with spaces ...
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... It is permitted to open a file more than once simultaneously, for example to copy data from one section of the file to another, provided only one file handle is used for writing to the file. USB-FileSys / USB-Config Format volume Success. Set date / time to 12:00, 1/1/2000 Success. ...
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... If external memory is used, the creation, modify and access date/time are all fully updated as required. If internal memory is used, these fields will only be updated by USB-FileSys if the directory entry would have been modified anyway. created and when it is closed with a different length than when it was opened.) ...
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... Table 8. Info Flags Bit Meaning 0 Maximum current draw: 0: Draw a maximum of 100mA from USB (default) 1: Draw a maximum of 500mA from USB 2-1 Activity pin function: 00: High for 100ms on any USB activity 10: High on PC write to any sector 11: High on PC write to root directory entry ...
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... This data sheet. Sample host controller source code. Base controller data sheets (© Microchip Technology Inc) USB 2.0 Specification (© Intel / Lucent / Microsoft / NEC / Philips 2000) The FAT File System. (Wikipedia article.) Revision history The following limitations exist with rev 0001 DIL parts. ...