Download ChipworkX User Manual

GHI Electronics,LLC
ChipworkX User Manual
ChipworkX Features
both cards and also supports SDHC (over 4GB) cards. ChipworkX uses SPI1 to access
SD/MMC cards and PA4 Digital I/O for chip select signal. There are two smaller
versions of SD cards, mini SD and micro SD. All card sizes are identical as far as the
interface. The only difference is the physical dimensions.
A user may be interested in mounting or unmounting the file system on the SD card
automatically when a SD card is inserted or ejected. To do this, there is a pin on the SD
card connector called Card Detect which works like a switch. Connect this to a GPIO
InterruptPort on ChipworkX and call mount, unmount appropriately.
USB Memory
Before proceeding, make sure you have an understanding of how USB devices are
inserted and detected on your .NET Micro Framework device. Refer to the USB Host
section.
Similar to SD cards, the user may be interested in mounting/unmounting the file system
on the USB drive automatically when a USB drive is inserted or ejected. To do this, you
can get events from ChipworkX about connection/disconnection of USB devices and
call mount, unmount appropriately.
8.12. Output Compare
Using output compare developers can generate different waveforms. This is available on
any digital output pin.
This is available through GHI NETMF library.
8.13. Database
ChipworkX supports SQLite which is useful for logging and retrieving data using standard
SQL queries. A database can be created in RAM or saved on Storage Media with file
system (SD,NAND or USB mass storage). Refer to ChipworkX.Database for reference on
creating databases in RAM or non-volatile memory.
GHI NETMF SDK includes a simple example code on how to use the database feature.
8.14. Power Control / Hibernate
Power Control
ChipworkX is running at 200MHz. However, the user can, using register access, change
the clock speed. This way, the processor will run slower and consume less power.
Hibernate
The user can put ChipworkX in hibernate mode through PowerState functionality in
Rev.4.3
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