参数资料
| 型号： | USB-FILESYS-DIL |
| 厂商： | Flexipanel |
| 文件页数： | 10/10页 |
| 文件大小： | 0K |
| 描述： | IC SYSTEM USB FAT FILE 28-DIL |
| 标准包装： | 25 |
| 系列： | * |
| 其它名称： | 658-1043-5 |
p9 of 10
26-Aug-10
USB-FileSys / USB-Config
HW149-8
www.hexwax.com
With the 20-pin device, the next two bytes are the
number of bytes to write, up to a maximum of 64. The
write must not cross the 64-byte sector boundary.
Once the command has been sent, a response byte will
be received. Assuming this the Success response 0x00,
the data bytes are then sent. A second response byte
will then be received.
Note: Writes to files are permitted even if the read-only
bit is set in their directory entry; writes after the end of
the existing file may cause further clusters to be
allocated to the file.
Example:
Command: Write 4 bytes at position 0123 on file
handle 02
0E 02 23 01 00 00 04 00
Response:
Success, data is 12 34 56 78.
00
Data:
(01 02 03 04)
01 02 03 04
Response:
Success.
00
Get Info
This command reads device information. The command
is the byte 0x0F. The first byte of the response is the
status byte. The second bytes indicates the information
in table 8. The third and fourth bytes are the version
number, least significant byte first.
Example:
Command: Get Info
0F
Response:
Success, device is 500mA with a 4096-
byte cluster size, version 0001
00 61 01 00
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
5-7
Cluster size:
000 - 512 bytes
001 - 1024 bytes
010 - 2048 bytes
011 - 4096 bytes
100 - 8192 bytes
101 - 16384 bytes
110 - 32768 bytes
(Read only – ignored with Set Info command)
Set Info
This command sets the maximum current the device
may draw from the PC, and the function of the Activity
pin. The first byte of the command is the value 0x10.
The second is as specified in table 8. The response is
the status byte.
If USB-FileSys is configured for 500mA current draw, it
will only work when plugged directly into PCs and
powered hubs. The setting takes effect from the next
plug-in. In any event, the no more than 100μA should
be drawn if the PTO# pin is high.
Example:
Command: Set 500mA operation, activity on write
10 05
Response:
Success.
00
Delivery and Programming
USB-FileSys is generally distributed in pre-programmed
in 28-pin DIL and 20-pin SSOP packages. Contact us
for other package options.
In high volumes (5K+), USB-FileSys is available reeled
with your custom settings preloaded, in any available
package.
TEAclipper Programming
For programming the firmware using TEAclipper/PIC HV,
the PGC, PGD and Vpp pins must be accessible.
During programming, these pins must be protected
against contention.
In particular, note that Vpp is
subject to up to 13V during programming. Nothing else
should be connected to Vpp except via a 22k pull-up
resistor.
The TEAclipper connector format is shown in figure 9.
Since the programming time is very fast,
no
programming socket is required. The TEAclipper can be
‘leaned’ against the plate-through holes shown.
It is strongly recommended that this connector is
included in circuits even if in-circuit programming is not
anticipated, since this allows you to upgrade the
firmware if necessary.
1mm hole dia
2.54mm spacing
Pin 1 indicated
by square pad
P
G
D
P
G
C
V
pp
V
ss
V
dd
Figure 9. Recommended plate-through connector design
Evaluation Board
The USB-Eval evaluation board is available for
evaluating USB-FileSys. Due to the variety of potential
implementations it is supplied unpopulated and a
prototyping area is provided. This will be necessary for
SD memory implementation. (e.g. Figure 10.)
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相关代理商/技术参数 |
参数描述 |
|---|---|
| USB-FILESYS-DIL | 制造商:HexWax Ltd 功能描述:DRIVERFREE USB CONFIGURATION 28DIL |
| USB-FILESYS-SS | 功能描述:USB 接口集成电路 Driver-Free USB con- figr/diagnostic mod RoHS:否 制造商:Cypress Semiconductor 产品:USB 2.0 数据速率: 接口类型:SPI 工作电源电压:3.15 V to 3.45 V 工作电源电流: 最大工作温度:+ 85 C 安装风格:SMD/SMT 封装 / 箱体:WLCSP-20 |
| USBFKEY0256B | 功能描述:USB接头 256MB USB Memory Key Black RoHS:否 制造商:FCI 产品:USB Type A Connectors 标准:USB 3.0 端口数量: 位置/触点数量:9 型式:Female 电流额定值:1.8 A 安装风格:Through Hole 端接类型:Solder Pin 连接器类型:USB 3.0 Receptacle |
| USBFKEY0256G | 功能描述:USB接头 256MB USB Memory Key Olive Drab RoHS:否 制造商:FCI 产品:USB Type A Connectors 标准:USB 3.0 端口数量: 位置/触点数量:9 型式:Female 电流额定值:1.8 A 安装风格:Through Hole 端接类型:Solder Pin 连接器类型:USB 3.0 Receptacle |
| USBFKEY0256N | 功能描述:USB接头 256MB USB Memory Key Nickel RoHS:否 制造商:FCI 产品:USB Type A Connectors 标准:USB 3.0 端口数量: 位置/触点数量:9 型式:Female 电流额定值:1.8 A 安装风格:Through Hole 端接类型:Solder Pin 连接器类型:USB 3.0 Receptacle |
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