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QUESTION
I have an STM32F429l-DISC1 board.
I'm trying to read the value on pin PC11. This is the PORTC settings:
...ANSWER
Answered 2021-May-24 at 19:42Change GPIO_ReadInputDataBit(GPIOC, 11);
to GPIO_ReadInputDataBit(GPIOC, GPIO_Pin_11);
or GPIO_ReadInputDataBit(GPIOC, 1 << 11);
DO NOT USE SPL. It is long time DEAD.
QUESTION
I'm trying to write an I2C Slave and test it in isolation.
I have a simulation that should be pulling SDA
low when write_ack
is high (Also highlighted by the red dots). However, you can see that SDA
remains the same.
Part of me thinks it's to do with the way I'm testing with the force
methods and the delays.
Any help appreciated.
I have found the keyword release
which seems to help.
Code below & EDA Playground is here: https://edaplayground.com/x/6snM
...ANSWER
Answered 2021-May-17 at 17:20Instead of using force
, a more conventional approach is to add a tristate buffer to the testbench, just like you have in the design.
For SDA
, create a buffer control signal (drive_sda
) and a testbench data signal (sda_tb
). Use a task
to drive a byte and wait for the ACK.
Since SCL
is not an inout
, there is no need for a pullup, and it can be directly driven by clk
.
QUESTION
I'm writing my first ever I2C program in Verilog and I'm struggling with the TestBench.
I want to test the I2C Slave in isolation, but I'm unable to set different SDA values: SDA is always 1, or X.
Am I going about testing the wrong way? My thoughts are I should be able to on every clock, set the SDA and see what happens.
Playground here: https://edaplayground.com/x/6snM
...ANSWER
Answered 2021-May-15 at 16:52I added $time
to the $display
statement, and this clearly showed that SDA
was changing, but it was changing all at the same time (10):
QUESTION
I have a singleton in which I want to receive data from a service. Since I'm new to python the only way I could figure this out was that a service sends the data up to the singleton via a method pointer. I use the thread to hinder the service to lock the singleton with its infinite loop.
The actual circumstances it that I want to extend Mock.GPIO(a mock implementation of RPi.GPIO), https://github.com/codenio/Mock.GPIO, to be able to simulate a button push on a real RPi. The singleton represents a simplified RPi board.
I want to call the socket service with the following
echo -n "22:HI" > /dev/tcp/127.0.0.1/5566
I want it to result in
...ANSWER
Answered 2021-Jan-02 at 10:32The following is a butt ugly solution, but it works. Needs some logic but it has a socket service inside a thread living inside a Singleton. When the service is called an external method, ext_callback, is called, eventually.
QUESTION
I'm currently working on turning some old Java code into a functioning android app. I used JavaFX to make the program originally but that won't work for android.
What i'm trying to do is, on a button click, the app should store what the user has selected and just hold it. For some reason this causes the code to crash and i'm not sure what the issue is. After that all I need to do is get it to output the selected items and make sure that the app is randomizing the array output for the workouts.
...ANSWER
Answered 2020-Dec-13 at 05:58Each item in your adapter is a MuscleItem
, not a String
. So when you try to cast the result of getItemAtPosition()
, an exception is thrown.
QUESTION
Right now, this is my code. What I want to do is replace the #'s with the values corresponding to the values of the input text.
So instead of something like "Pushup # time / # seconds", I want something like "Pushup 40 times / 3 seconds".
My URL changes to the values
ANSWER
Answered 2020-Nov-02 at 04:20First you need to create function for each activity, which will get called on specific activity panel gets updated. And just update those value into your page by identifying output fields
Updated code for PushUp Activity.`
QUESTION
I am doing a project with a numeric keypad, an ESP32 programmed in nanoFramework (CoreLibrary 1.9.0 p5, Esp32 1.3.2 p9). Now I want to wake up the controller with a keypress on one of the buttons. The code for handling the matrix works fine, buttons are responsive and working:
...ANSWER
Answered 2020-Oct-19 at 19:53The pin numbering is per the Espressif documentation. You don't need to configure the GPIO pins before the call to EnableWakeupByPin unless used by application.
I have tested this and It looks like the Sleep.EnableWakeupByPin() is not working. We will look into the cause and get it fixed.
Try using the Sleep.EnableWakeupByMultiPins(). I have tested and that is working.
QUESTION
I'm trying to gather temperature from my temperature sensor and i'm facing this error :
/home/myuser/sketchbook/libraries/DallasTemperature/DallasTemperature.cpp: In member function ‘void DallasTemperature::blockTillConversionComplete(uint8_t)’: /home/myuser/sketchbook/libraries/DallasTemperature/DallasTemperature.cpp:446:13: error: ‘yield’ was not declared in this scope yield(); ^
/home/myuser/sketchbook/libraries/DallasTemperature/DallasTemperature.cpp: In member function ‘bool DallasTemperature::recallScratchPad(const uint8_t*)’: /home/myuser/sketchbook/libraries/DallasTemperature/DallasTemperature.cpp:543:11: error: >‘yield’ was not declared in this scope yield();
This is my code, based on https://www.instructables.com/id/How-to-use-DS18B20-Temperature-Sensor-Arduino-Tuto/ :
...ANSWER
Answered 2020-Sep-30 at 08:24Some platforms do not implement yield
so you can remove the call to it from the code of the library. Calling yield
passes control to other tasks, if you do not have other tasks, it is redundant anyway.
Removing it can be done by providing an empty implementation at the top of the file.
If you are sure that your board should support it. Than it is possible that you are using a wrong software stack. Try to download the official Arduino IDE.
QUESTION
I'm trying to retrieve the data from the file below, return a class object with the json values and push it into the class array above to display it as hard-coded json data, The current error is being unable to assign Exercise[] to Exercise. I am new to coding and would be really thankful to someone who could lend a helping hand.
...ANSWER
Answered 2020-Jun-04 at 14:38Change your constructor code To :-
QUESTION
I am having trouble creating the desired output using SQL. I have an events table, that holds a record for every event taken by each candidate, as so:
...ANSWER
Answered 2020-Jul-01 at 22:24Using a filtered aggregate is usually the easiest way:
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