spi | to show to make SPI data transfer under Linux

by tomxue C Version: Current License: No License

X-Ray Key Features Code Snippets(1)Community Discussions(10)Vulnerabilities Install Support

kandi X-RAY | spi Summary

spi is a C library typically used in Internet of Things (IoT), Raspberry Pi applications. spi has no bugs, it has no vulnerabilities and it has low support. You can download it from GitHub.

TODO: to make DMA mode work test spidev3.0 & spidev3.1 trial: how to make a kernel module to enable spidev?. test the max speed: speed=20M, real speed=12MHz; speed=30M, real speed=24MHz; speed=48M, real speed=48MHz, and this is the max value.

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Quality

Security

License

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Support

spi has a low active ecosystem.

It has 6 star(s) with 5 fork(s). There are 3 watchers for this library.

It had no major release in the last 6 months.

spi has no issues reported. There are no pull requests.

It has a neutral sentiment in the developer community.

The latest version of spi is current.

Quality

spi has no bugs reported.

Security

spi has no vulnerabilities reported, and its dependent libraries have no vulnerabilities reported.

License

spi does not have a standard license declared.

Check the repository for any license declaration and review the terms closely.

Without a license, all rights are reserved, and you cannot use the library in your applications.

Reuse

spi releases are not available. You will need to build from source code and install.

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spi Key Features

No Key Features are available at this moment for spi.

spi Examples and Code Snippets

Setup the SPI device .

python

Lines of Code : 8

License : Permissive (MIT License)

Copy

def setup(pathtofile,version):
    name_of_file = pathtofile
    path_to_file = os.path.join(os.getcwd(), name_of_file)
    SPI_SETDESKWALLPAPER = 20
    if is_64bit():
        ctypes.windll.user32.SystemParametersInfoW(SPI_SETDESKWALLPAPER, 0, path_

Community Discussions

Trending Discussions on spi

"not in" is working but "not exists" is not working in hql

JPA throws java.lang.StackOverflowError with bidirectional @OneToMany

javax.naming.NoInitialContextException: Need to specify class name in environment or system property Heroku deploy

Spring Boot 2.5.0, Spring Cloud 2020.0.2 and Hibernate 5.4.31 - H2 Database Multi Row Insert Failing

Where I am wrong? I am using Maven ProJect to make TODO application with hibernate ,JSP, SERVLET

STM32 SPI communication with HAL

Spring boot executes without error, however, no tables are created on the server

Python Searching for specic error message in specific files , but the loop output twice

P10 Led Matrix 64x32 not show true in pixeltime (PxMatrix library) with ESP8266 NodeMCU

Angular SpyOn Service with Another Parameter

QUESTION

"not in" is working but "not exists" is not working in hql

Asked 2021-Jun-15 at 07:06

i am working in jave, spring, mysql, hibernate environment

I have the following hql it gives me the correct out put

...

ANSWER

Answered 2021-Jun-15 at 07:06

Instead of

Source https://stackoverflow.com/questions/67981454

QUESTION

JPA throws java.lang.StackOverflowError with bidirectional @OneToMany

Asked 2021-Jun-15 at 06:17

I have two entity classes as follows. The Parachute is the parent object and it has multiple Component objects. I need to have bidirectional @OneToMany implemented here.

Parent Parachute.java class.

...

ANSWER

Answered 2021-Jun-15 at 06:17

You are violating the JPA spec by accessing the persistence context in a lifecycle listener.

See the JPA Specification 4.2 Section 3.5.2

In general, the lifecycle method of a portable application should not invoke EntityManager or query operations, access other entity instances, or modify relationships within the same persistence context. A lifecycle callback method may modify the non-relationship state of the entity on which it is invoked.

"a portable application should not" is the specification way of saying: Don't do that, anything might happen. Maybe the world ends.

The fix is not to do that. Maybe be preloading the currently logged in user and reference it so you may access it in your entity listener and do not set a reference to the user, but simple store its id or similar.

Source https://stackoverflow.com/questions/67971795

QUESTION

javax.naming.NoInitialContextException: Need to specify class name in environment or system property Heroku deploy

Asked 2021-Jun-14 at 06:51

Im trying to deploy a java web app to heroku, I did all their steps from https://devcenter.heroku.com/articles/deploying-java-applications-with-the-heroku-maven-plugin, but when I try to open a page where I have data from db I am getting:

...

ANSWER

Answered 2021-Jun-14 at 06:51

changing pom.xml solved my problem:

Source https://stackoverflow.com/questions/67911012

QUESTION

Spring Boot 2.5.0, Spring Cloud 2020.0.2 and Hibernate 5.4.31 - H2 Database Multi Row Insert Failing

Asked 2021-Jun-13 at 22:47

While Working on a Spring Boot Application with SB version 2.5.0, Spring Cloud (for Centralized Config 2020.0.2) The Hibernate version is 5.4.31 (I am not using a specific Hibernate version, it is as per Spring Boot compatibility). Using H2 database for in-memory data, as I need to create the sample application for demo.

In the Resources folder, I do have my SQL file. When I name it data.sql the application does not start at all. When I renamed this file as import.sql, my application started but still facing issues for multi-row insertion.

Data Insert SQL File

...

ANSWER

Answered 2021-Jun-09 at 10:11

You need to add this to the app config:

Source https://stackoverflow.com/questions/67650704

QUESTION

Where I am wrong? I am using Maven ProJect to make TODO application with hibernate ,JSP, SERVLET

Asked 2021-Jun-11 at 13:13

My Problem database connectvity WARN: SQL Error: 0, SQLState: 08001 May 18, 2021 8:08:09 PM org.hibernate.engine.jdbc.spi.SqlExceptionHelper logExceptions ERROR: No suitable driver found for I faced problem with database connectivity .I am using Eclispse Database 10g Tomcat 8.5 Ojdbc 14

My Code is hibernate.cfg.xml

...

ANSWER

Answered 2021-May-19 at 03:51

Why the connection url property value left empty?

Below are the working properties, try it out and let me know for any issues.

Source https://stackoverflow.com/questions/67596489

QUESTION

STM32 SPI communication with HAL

Asked 2021-Jun-11 at 11:58

I just started programming a STM32 and generated a code with CubeMX for an SPI communcation with a gyroscope (L3GD20) I have a problem with the HAL_SPI commands.

I first try to read the WHO_AM_I register which return a good response (0xD4) Then I tried to do the same with CTRL_REG1 register and it was still good by returning (0x07).

But if I try to get both of them one after the other, the HAL_SPI_Receive keeps sending the data of the first HAL_SPI_Transmit of the code... Tried to give it other buffers but still didn't work.

Here is the part of the code I'm intersted in :

...

ANSWER

Answered 2021-Jun-11 at 10:26

Since HAL_SPI_Receive is already using HAL_SPI_TransmitReceive (github stm32f4 spi driver) to send dummy data to generate clock, you can use that fact and ditch the HAL_SPI_Transmit, and use the receive function like this:

Source https://stackoverflow.com/questions/67922914

QUESTION

Spring boot executes without error, however, no tables are created on the server

Asked 2021-Jun-10 at 17:08

Most of the code is copied from the old projects, except this time I use Gradle instead of maven.

When I run the project on my local machine via IntelliJ, the new tables are created and everything works.

However, when I upload it to tomcat, I don't see the tables on the database. When I check the endpoints and try to save new data, it is possible and after saving I can access them.

While the project is in tomcat, the data is accessible. As soon as I reload/undeploy and deploy again, the data is lost and I can't access the data via services. Until I save new data. Maybe it has something to do with "in-memory databases".

application.properties:

...

ANSWER

Answered 2021-Jun-10 at 02:22

You're missing on some configuration, for example generate-dll. Try with the following:

Source https://stackoverflow.com/questions/67765588

QUESTION

Python Searching for specic error message in specific files , but the loop output twice

Asked 2021-Jun-10 at 14:07

import os
import sys
import re
import fnmatch
from time import sleep
#The colours of the things
class bcolors:
    HEADER = '\033[95m'
    OKBLUE = '\033[94m'
    OKGREEN = '\033[92m'
    WARNING = '\033[93m'
    FAIL = '\033[91m'
    ENDC = '\033[0m'
    BOLD = '\033[1m'
    UNDERLINE = '\033[4m'
pattern = ['*.results','*.reports','*.log','*.sum','*.summary','*.spi','*.log','*.ext','*.sum','*.summary','*.spi','*.info']
search_str = "ERROR:"
mystring = search_str.encode('utf-8')
#print len(sys.argv)
print ('checking for errors in', sys.argv[1])
if len(sys.argv) < 1:
    sys.exit('Usage: check_error.py ')
for x in pattern:
  for path,dirs,files in os.walk(sys.argv[1]):
    for fname in files:
        # Test the filename for particular pattern matches.
      if fnmatch.fnmatch(fname,x):
        fullpath = os.path.join(path,fname)
        with open(fullpath,'rb') as f:
           line = f.read()
           # Initialize counter for line number
           line_no = 1
           # Loop until EOF
           if line != '' :
           # Search for string in line
             index = line.find(mystring.lower())
             if ( index != -1) :
                 print(bcolors.FAIL + '[-]' + bcolors.ENDC + ' ', fname, ' ', search_str , ' ' , 'exists! Please check', ' ', fullpath, sep="" ) 
                 print('      ')
                 sleep(0.01)
             else:
                 print(bcolors.OKGREEN + '[+]' + bcolors.ENDC + ' ',  fname, ' ', 'OK!', sep="")
                 print("       ")
                 sleep(0.01)
                # Increment line counter
                 line_no += 1

...

ANSWER

Answered 2021-Jun-10 at 14:07

You are seeing output for the *.log and *.sum files twice because these patterns appear twice in your pattern list. Remove the duplicates and you will see the output that you expect (I think).

Source https://stackoverflow.com/questions/67922601

QUESTION

P10 Led Matrix 64x32 not show true in pixeltime (PxMatrix library) with ESP8266 NodeMCU

Asked 2021-Jun-10 at 09:17

I am learning how to control P10 Led matrix 64x32 with NodeModule MCU ESP8266, I google and found this library https://github.com/2dom/PxMatrix and this tutorial https://www.instructables.com/RGB-LED-Matrix-With-an-ESP8266/. I believed that I wire between P10 and ESP8266 in true way in the tutorial, but that P10 led does not display as the example:

The true result will be:

This is my wire diagram:

This is my code:

...

ANSWER

Answered 2021-Jun-10 at 09:17

I fixed this by adding

display.setPanelsWidth(2);

display.setMuxPattern(SHIFTREG_ABC_BIN_DE);

because my led is combined by 2 matrix 32x16.

Source https://stackoverflow.com/questions/67522932

QUESTION

Angular SpyOn Service with Another Parameter

Asked 2021-Jun-09 at 21:26

How do I Spy on and Mock a Service with another service Parameter? Example, My New Authservice has this parameter,

...

ANSWER

Answered 2021-Jun-04 at 03:14

Are you able to do service = new AuthService()? It doesn't complain that it needs an argument?

Try doing:

Source https://stackoverflow.com/questions/67829672

Community Discussions, Code Snippets contain sources that include Stack Exchange Network

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