I've been trying to change pin's value so it will output high or low voltage using the following code:
Initialize:
PIN_Config LCDInitTable[] = {
// DIO2: Buzzer (initially off)
Board_DIO25_ANALOG | PIN_GPIO_OUTPUT_EN | PIN_GPIO_LOW | PIN_PUSHPULL,
// DI03: E
PIN_ID(3) | PIN_GPIO_OUTPUT_EN | PIN_GPIO_LOW | PIN_PUSHPULL ,
// DIO23: Rs
PIN_ID(23) | PIN_GPIO_OUTPUT_EN | PIN_GPIO_LOW | PIN_PUSHPULL,
// DIO22: D4
PIN_ID(22) | PIN_GPIO_OUTPUT_EN | PIN_GPIO_LOW | PIN_PUSHPULL,
// DI24: D5
PIN_ID(24) | PIN_GPIO_OUTPUT_EN | PIN_GPIO_LOW | PIN_PUSHPULL,
// DIO10: D6
PIN_ID(10) | PIN_GPIO_OUTPUT_EN | PIN_GPIO_LOW | PIN_PUSHPULL,
// DIO21: D7
PIN_ID(21) | PIN_GPIO_OUTPUT_EN | PIN_GPIO_LOW | PIN_PUSHPULL,
// Terminate list
PIN_TERMINATE
};
static PIN_Handle lcdHandle;
static PIN_State lcdState;
And then in the main function:
lcdHandle = PIN_open(&lcdState, LCDInitTable);
if(!lcdHandle) {
/* Error initializing board LED pins */
while(1);
}
PIN_setOutputValue(lcdHandle, Board_DIO25_ANALOG, 1);
BIOS_start();
Here I tried to change to voltage to be high
If anyone knows how to pass data to the LCD 16bit it would be great (I'm using it as an 8bit)
Thanks for the help
Board_DIO25_ANALOG | PIN_GPIO_OUTPUT_EN | PIN_GPIO_LOW | PIN_PUSHPULL,
Wasn’t the correct flags
Related
I am struggling with one code line. It is a Key generation Line for a Expert Adviser. Can someone help me figure out how I can generate key by using this line:
int key=3*(StringToInteger(StringSubstr(IntegerToString(AccountNumber()), 0, 3)))+333333;
And what is the problem?
int accountNumber = AccountNumber();
string accountNumberString = IntegerToString(accountNumber);
string accountNumberStringFirst3Digits=
StringSubstr(accountNumberString,0,3);
int accountNumberFirstThreeDigits = StringToInteger(accountNumberStringFirst3Digits);
int accountNumberFirstThreeDigitsMultiplied = 3 * accountNumberFirstThreeDigits;
int key = accountNumberFirstThreeDigitsMultiplied + 333333;
Can someone help me figure out how to generate key by this line?
Welcome, certainly, let's look on that :
int key = 3*(StringToInteger(StringSubstr(IntegerToString(AccountNumber()), 0, 3)))+333333;
Your code actually means this:
// +------------------------------------------------------------------------------- type declaration
// | +--------------------------------------------------------------------------- variable name definition
// | | +------------------------------------------------------------------------- assignment operator
// | | | +----------------------------------------------------------------------- compile-time integer constant
// | | | | +--------------------------------------------------------------------- multiply operator
// | | | | | +-------------------------------------------------- MT4 system function: StringToInteger( aString )
// | | | | | | +------------------------------------ MT4 system function: StringSubstr( aString, aPosToStartSubstrFrom, aSubstrLength )
// | | | | | | | +------------------- MT4 system function: IntegerToString( aIntNum ) | |
// | | | | | | | | +---- MT4 system function: AccountNumber() | |
// | | | | | | | | | | |
// | | | | | | | | | +------------------------------------------------------------------+ |
// | | | | | | | | | | +------------------------------------------------------------------------------+
// | | | | | | | | | | |
int key = 3 * ( StringToInteger( StringSubstr( IntegerToString( AccountNumber() ), 0, 3 ) ) )
+ 333333;
// | ||
// +------||----------------------------------------------------------------- add operator
// +|----------------------------------------------------------------- compile-time integer constant
// +----------------------------------------------------------------- literal MQL4-language syntax-terminator
The code above both defines and generates a fair integer value, so wherever your Expert Advisor code refers to a value of key, this calculated value will be used ( see also the documentation about the New-MQL4 scope-of-validity, inside which this variable remains visible ).
I have a following statement and it generates the mentioned output by averaging data within every 20 minutes of range.
Statement :
SELECT record_no, date_time,
ROUND(AVG(UNIX_TIMESTAMP(date_time))) AS time_value,
ROUND(AVG(ph1_active_power),4) AS p1,
ROUND(AVG(ph2_active_power),4) AS p2,
ROUND(AVG(ph3_active_power),4) AS p3
FROM powerpro1
GROUP BY date_time DIV 2000
Portion of the output
+-----------+---------------------+------------+---------+----------+----------+
| record_no | date_time | time_value | p1 | p2 | p3 |
+-----------+---------------------+------------+---------+----------+----------+
| 1 | 2014-12-01 00:00:00 | 1417372770 | 72.6242 | -68.7428 | -72.6242 |
| 21 | 2014-12-01 00:20:00 | 1417373970 | 71.6624 | -69.7448 | -71.6624 |
| 41 | 2014-12-01 00:40:00 | 1417375170 | 70.6869 | -70.7333 | -70.6869 |
| 61 | 2014-12-01 01:00:00 | 1417376370 | 69.6977 | -71.7082 | -69.6977 |
| 81 | 2014-12-01 01:20:00 | 1417377570 | 68.6952 | -72.6692 | -68.6952 |
| 101 | 2014-12-01 01:40:00 | 1417378770 | 67.6794 | -73.6162 | -67.6794 |
| 121 | 2014-12-01 02:00:00 | 1417379970 | 66.6505 | -74.549 | -66.6505 |
| 141 | 2014-12-01 02:20:00 | 1417381200 | 65.5825 | -75.4901 | -65.5825 |
+-----------+---------------------+------------+---------+----------+----------+
According to the no of records in the table named "powerpro1", the above query selects 1368 records when the executing. (May be increased in the future when receiving new records)
My requirement is to create a highchart using time_value for the x-axis and p1, p1 and p3 for the y-axis. But I needs to limit the no of points in the x-axis.
Can anyone like to help me to show this 1368 points by 1000 points in the chart
Unfortunately have no this kind of apporixmation, only in reverse order (I mean datagrouping, if you have 100 points, return i.e 10). So you need to calcualte it on your own and push to your data all 1000 points.
I want help with my UIScrollView:
I have implemented my UIScrollView in my project and everything works fine but I have problems when Im trying to implement zoom, but this is not as the zoom when we are looking a picture. I am trying to zoom out. My app begins as this graphic when it launches. Lets suppose that I have a UIView in the screen which is bigger than my screen.
--------------------------------------------
| | | |
| | | |
| -----|----------------------|---------|
| | | | |<---------UIView
| | | |<------------------ iPhone Screen frame
| | | | |
| -----|----------------------|---------|
| | | |
| | | |<-------- ScrollView Content size
| | | |
| | | |
| | |<----------------- ScrollView Frame Size
| | | |
| | | |
| | | |
| | | |
| | | |
| ------------------------ |
| |
| |
| |
--------------------------------------------
And I want my screen look like this when I zoom out.
------------------------
| |
| ------------------|
UIView-------->| |
| | |
| ------------------|
| |
| |
| |
| |
| |
| |
| |
| |
| |
| |
| |
| |
------------------------
How can I do it?
Set scrollView.minimumZoomScale = 0 then you can zoom out as much as you want. If you don't want to zoom out too much, give it a reasonable value.
I am trying to achieve a layout of buttons very similar to Apple's inbuilt Calculator app:
I am using autolayout to position the buttons, and drawing a 0.5px border on each button, aiming for a 1px gap between buttons (like the calc app, closeup showing pixels above, from a retina device).
Border applied by :
btn.layer.borderWidth=0.5f;
btn.layer.borderColor=[[UIColor blackColor] CGColor];
and the layout is set up using Interface Builder.
It almost works; but there is some variability in the gap between buttons - for example the gap between the "1,2,3,thru" row and the "4,5,6,and" row is 2 pixels, but the gap between the "7,8,9" and "cl,0,#" rows is only one pixel.
Constraints are :
Top black area has a fixed height
All buttons same height
In the numeric rows, numeric buttons are set to same width, THRU, AND, ALL OFF and ENTER buttons are set to same fixed width
Top row of buttons pinned to bottom of black area, bottom row pinned to bottom of superview
In IB the buttons are all positioned butting up against each other.
In interface builder and at runtime I don't see any autolayout errors; and a debugger dump of the autolayout info gives me:
po [[UIWindow keyWindow] _autolayoutTrace]
*<UIWindow:0x10908a560> - AMBIGUOUS LAYOUT
| *<UILayoutContainerView:0x109136140>
| | *<UINavigationTransitionView:0x10908ef80>
| | | *<UIViewControllerWrapperView:0x109138870>
| | | | *<UIView:0x1090e6d10>
| | | | | *<UILabel:0x1090d5bb0>
| | | | | *<UIButton:0x1090d27e0>
| | | | | | <UIButtonLabel:0x1091c9190>
| | | | | *<UIButton:0x1090844c0>
| | | | | | <UIButtonLabel:0x1091c7990>
| | | | | *<UIButton:0x109088b60>
| | | | | | <UIButtonLabel:0x1091c6190>
| | | | | *<UIButton:0x1090e2ce0>
| | | | | | <UIButtonLabel:0x1091c4990>
| | | | | *<UIButton:0x1090e4e50>
| | | | | | <UIButtonLabel:0x1091c3190>
| | | | | *<UIButton:0x1090db730>
| | | | | | <UIButtonLabel:0x1091c1990>
| | | | | *<UIButton:0x109068f50>
| | | | | | <UIButtonLabel:0x1091c0190>
| | | | | *<UIButton:0x10906db80>
| | | | | | <UIButtonLabel:0x1091be990>
| | | | | *<UIButton:0x1090d23a0>
| | | | | | <UIButtonLabel:0x1091bd190>
| | | | | *<UIButton:0x1090c8520>
| | | | | | <UIButtonLabel:0x1091bb990>
| | | | | *<UIButton:0x1090c9090>
| | | | | | <UIButtonLabel:0x1091ba190>
| | | | | *<UIButton:0x1090c5680>
| | | | | | <UIButtonLabel:0x1091b8990>
| | | | | *<UIButton:0x1090d7fa0>
| | | | | | <UIButtonLabel:0x1091b7190>
| | | | | *<UIButton:0x1090cc820>
| | | | | | <UIButtonLabel:0x1091b5990>
| | | | | *<UIButton:0x10909dda0>
| | | | | | <UIButtonLabel:0x1091b4190>
| | | | | *<UIButton:0x1090c8090>
| | | | | | <UIButtonLabel:0x1091b2990>
| | | | | *<UIButton:0x1090c8e30>
| | | | | | <UIButtonLabel:0x1091b1190>
| | | | | *<UIButton:0x1090d5390>
| | | | | | <UIButtonLabel:0x1091af990>
| | | | | *<UIButton:0x10d30d260>
| | | | | | <UIButtonLabel:0x1091ae190>
| | | | | *<UIButton:0x10909a6a0>
| | | | | | <UIButtonLabel:0x1091ac990>
| | | | | *<UIButton:0x1090cca40>
| | | | | | <UIButtonLabel:0x109161160>
| | | | | *<UIButton:0x10d30ea90>
| | | | | | <UIButtonLabel:0x109156460>
| | | | | *<UIButton:0x1090da9e0>
| | | | | | <UIButtonLabel:0x109177ad0>
| | | | | *<_UILayoutGuide:0x1090e6dd0> - AMBIGUOUS LAYOUT
| | | | | *<_UILayoutGuide:0x1090ce080> - AMBIGUOUS LAYOUT
| | <UINavigationBar:0x10907da60>
| | | <_UINavigationBarBackground:0x109087240>
| | | | <_UIBackdropView:0x1090899f0>
| | | | | <_UIBackdropEffectView:0x10908b110>
| | | | | <UIView:0x10908bbb0>
| | | | <UIImageView:0x1090877a0>
| | | <UINavigationItemView:0x10916bc30>
| | | | <UILabel:0x10917f810>
| | | <UINavigationItemButtonView:0x1090ee060>
| | | | <UILabel:0x1090ee5d0>
| | | <_UINavigationBarBackIndicatorView:0x109098c80>
Can anyone offer any hints on how to achieve a "pixel perfect" layout like this with Autolayout? Or should I be doing this programatically instead?
Layer borders are drawn inside the views bounds, so you aren't going to see a "gap" between the buttons, but the effect of two borders abutting each other. This isn't going to work in the non-retina simulator or devices, since it can't draw a half-pixel, and Autolayout doesn't align views on half-pixels.
For a layout like the one above I'd be giving a fixed height to the buttons (or to one button, and making the others equal it) and letting the black view take up the remaining space. It's always best to have at least one (ideally, exactly one) variable element in a full-screen layout basically to cover rounding errors.
It sounds at the moment like you have one fixed element (the black view) and the buttons are basically "take the remaining height and divide it between yourselves", which will only work if the remaining height divides perfectly.
I tried to set horizontal/vertical spaces between views equal to 0.5. The color of parent view acts as border color. It looks ugly in IB, it cannot layout views properly but resulting layout on device looks perfect.
In interface builder:
On simulator:
Constraints are a bit tricky. For each row:
set height for the 1st button
set equal height for all buttons
set equal width for all buttons (a bit different for rows with orange buttons)
align top edges of all buttons
align bottom edges of all buttons
set leading and trailing spaces between all buttons (including spaces to superview) to 0.5
set top space (to previous row) of 1st button to 0.5
You can apply constraints to multiple items at once. In order to apply leading/trailing spaces between buttons, place them without intersection in desired order before applying.
I want to set a background image to uiview with multi region like picture below?
How can i do that?
(constant)
<----->
+------------------+ ^
| | | | | (constant)
| A | | B | |
|-----+ - - +------| v
| | | | ^
| | | | |
| C | | D | | (stretched region)
| | | | |
| | | | |
+------------------+ v
<—————> <——————>
(stretched region)
Update: This is my image http://i.imgur.com/mEk75Sc.png
Use multiple images for each region.. this will be easier.