4d Systems 7.0" DIABLO16 Intelligent Display $LCD-70DT uLCD-70DT データシート

製品コード

uLCD-70DT

4D SYSTEMS uLCD-70DT Display Module

uLC

-7

spl

Where ‘SPIx’ is substituted with SPI1, SPI2 or SPI3
accordingly,  and  ‘pin’  is  the  target  GPIO  pin
compatible with that particular pin function.

Chip  Select  for  use  with  SPI  can  be  any  other
unused  GPIO  pin,  configured  as  a  Digital  Output.
The lowering and raising of the selected CS (GPIO)
pin  is  done  manually  by  the  user  is  the  4DGL
application.

Please  refer  to  the  separate  document  titled
'DIABLO16-4DGL-Internal-Functions.pdf'  for  more
information on how to use the SPI functions, along
with  the  separate  document  titled  ‘DIABLO16-
Processor-Datasheet-REVx.x.pdf’.

4.6.

There are 3 user configurable I

C channels

available for mapping to GPIO, for use by the user
for the target application. All 3 I

C channels are

Master only, and cannot be configured to be
slaves at this time.

Please refer to the table on the previous page for
details on which GPIO can be configured for I

To map an I

C Channel to a set of GPIO pins, the

following 4DGL function is used:

I2Cx_Open(Speed, SCLpin, SDApin);

Where ‘I2Cx’ is substituted with I2C1, I2C2 or I2C3
accordingly, ‘Speed’ is the desired I2C Bus speed,
and ‘SCLpin’ and ‘SDApin’ are the target GPIO pins
compatible with that particular pin function.

Note: The normal I2C pins are PA0 to PA13,
however use of these pins has a few limitations.

a) There is no slew rate control at I2C_MED

b) I2C_FAST is not truly 1MHz.

If  either  of  these  restrictions  need  to  be
addressed,  a  special  case  of  SCLpin  =  PA14  and
SDApin  =  PA15  exists  ONLY  for  speeds  I2C_MED
(which  uses  slew  rate  control)  and  I2C_FAST
(which is truly 1MHz)

Please refer to the separate document titled
'DIABLO16-4DGL-Internal-Functions.pdf' for more
information on how to use the I

C functions, along

with the separate document titled ‘DIABLO16-
Processor-Datasheet-REVx.x.pdf’.

Pulse Out

4.7.

Pulse  Out  is  used  to  create  a  single  pulse  of  set
duration  on  the  selected  pin  of  choice,  which  is
inverted in polarity to the current state of the pin.
This  ‘inversion  of  polarity’  means  if  a  Pin  is
currently  held  HI,  and  Pulse  Out  is  executed  on
that  Pin,  the  pin  will  pulse  LO  and  then  return  to
HI. Same with vice versa, if currently LO and Pulse
Out  is  executed  on  that  Pin,  it  will  pulse  HI  and
then return to LO.

This is available in both blocking and non-blocking
versions.

Please refer to the table on the previous page for
details on which GPIO can be configured to this.

Note: Each Pulse Out request needs at least a 1ms
lead time due to the scheduling of the event with
the internal 1ms timer.

To enable the Pulse Out function on a GPIO pin,
the following 4DGL functions are used:

pin_Pulseout(pin, value);

//Non-Blocking

pin_PulseoutB(pin, value);

//Blocking

Where ‘pin’ is the target GPIO pin compatible with
that  particular  pin  function,  and  ‘value’  is  the
length of the pulse in milliseconds.

Please  refer  to  the  separate  document  titled
'DIABLO16-4DGL-Internal-Functions.pdf'  for  more
information  on  how  to  use  the  Pulse  Out
functions, along with the separate document titled
‘DIABLO16-Processor-Datasheet-REVx.x.pdf’.

PWM Out

4.8.

There  are  6  PWM  channels  available  to  be
configured by the user, with 4 time bases available
for selection.

The  PWM  can  be  configured  to  be  used  in  Servo
Mode, or Simple Mode.
Please refer to the table on the previous page for
details on which GPIO can be configured for PWM.

Servo Mode allows a  millisecond input  value with
0.01ms  resolution,  which  runs  at  a  frequency  of
approximately 50Hz or 50pps (20ms). The position
of  the  servo  is  determined  by  the  width  of  the
pulse. Generally 1.5ms is 90 degrees, 1ms being 0
degrees  and  2ms  being  180  degrees.  Servos