3.3. SD-CARD
A micro SD card connector is available on
DuinoMite-Mega, DuinoMite-Mini, DuinoMite-eMega
and
DuinoMite
boards, this connector is with push-push action to insert and remove the card.
The uSD power supply is designed with ferrite bead filtering to minimise noise problems.
As
DuinoMite
, and
DuinoMite-Mega
are designed to be low power boards there is provision for the
SD-card power supply to be shut down, this is done with FET2 connected to STB_E on RB13 port of
PIC32.
SD-CARD presence is sensed by the SD_#CS connected to RD5 port, there is low pull down made
with 100K on this port so when there is no card inserted RD5 is read as 0, when SD card is inserted it
have 10K pullup inside which pull RD5 high and it's read as 1.
Note that the SPI used for the SD card is also wired to UEXT and ARDUINO connectors, so
programmer should take care of this when writing their code.
Summary of Contents for DuinoMite
Page 27: ...4 SOFTWARE...
