pico-sdk | Raspberry Pi Pico SDK | SDK library
kandi X-RAY | pico-sdk Summary
kandi X-RAY | pico-sdk Summary
The Raspberry Pi Pico SDK (henceforth the SDK) provides the headers, libraries and build system necessary to write programs for the RP2040-based devices such as the Raspberry Pi Pico in C, C++ or assembly language. The SDK is designed to provide an API and programming environment that is familiar both to non-embedded C developers and embedded C developers alike. A single program runs on the device at a time and starts with a conventional main() method. Standard C/C++ libraries are supported along with C level libraries/APIs for accessing all of the RP2040's hardware include PIO (Programmable IO). Additionally the SDK provides higher level libraries for dealing with timers, synchronization, USB (TinyUSB) and multi-core programming along with various utilities. The SDK can be used to build anything from simple applications, to fully fledged runtime environments such as MicroPython, to low level software such as RP2040's on-chip bootrom itself. Additional libraries/APIs that are not yet ready for inclusion in the SDK can be found in pico-extras.
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QUESTION
I am trying to set the environment variable path in cmake by first getting the directory, then setting the variable:
ANSWER
Answered 2022-Jan-18 at 16:44I turn @vre's comment into an answer: Do not use curly braces to set CMake variables, see the CMake documentation.
QUESTION
I need to communicate via I2C to the adxl357 accelerometer and a few questions have arisen. Looking at the RP2040 sdk documentation I see that there is a special method to send data to a certain address, such as i2c_write_blocking(). Its arguments include a 7-bit address and the data to be sent. My question is, since the accelerometer needs a Read/Write bit, is it still possible to use this function? Or should I go to the alternative i2c_write_raw_blocking()?
Also, I don't understand the notation of the Read / Write bit, it is reported with R/#W, would that mean that 1 is Read while 0 is write?
Thanks in advance for the help.
...ANSWER
Answered 2021-Nov-30 at 21:15I2C addresses have 7 bits: these are sent in the high 7 bits of an 8-bit byte, and remaining bit (the least significant bit) is set to 1 for read, 0 for write.
The reason the documentation says it wants a 7-bit address is because it is telling you that the write function will left-shift the address by one and add a 1, and the read function function will left-shift the address by one and add a 0.
If it didn't tell you this you might pre-shift the address yourself, which would be wrong.
QUESTION
So i am getting my time from an api that returns epoch time and i need to pass that time into a Real Time Clock function which accepts this dateTime structure
...ANSWER
Answered 2021-Nov-18 at 13:40Assuming the epoch time is the UNIX epoch, i.e. seconds since 1970/01/01 00:00:00 UTC, you can use the localtime function. This function takes the address of a time_t containing epoch time and splits it into its component values, assuming the local timezone:
QUESTION
I'm not sure exactly what is going on, I'm using cmake 3.21.1 and have the latest 2019 build tools for visual studio, but here is the output of nmake:
...ANSWER
Answered 2021-Aug-28 at 20:02I had same problem and found the answer here
Uninstall CMAKE cmake-3.21.2 and install cmake-3.20.5
QUESTION
I was trying setup enviorment to develop some program for new PICO, but only compile one time, after I haved this error:
...ANSWER
Answered 2021-Feb-22 at 13:50Okey, solution was erease the content from autogenerated file, save file and build again...,
After several builds error appear again, and same procedure was success :D
Thanks all that tried to helped me if knows about root issue will be great!
QUESTION
I am using the Raspberry Pico and attempting to use the debugging tool in VS Code from VSCode on a Raspberry Pi 4, but I am getting the following error:
OpenOCD GDB executable "arm-none-eabi-gdb" was not found. Please configure "cortex-debug.armToolchainPath" correctly.
I have the following config for launch.json
...ANSWER
Answered 2021-Feb-17 at 11:45There has been a fix recently in the documentation.
As explained in this link: https://github.com/raspberrypi/pico-examples/issues/8
When setting a Raspberry Pi up as described in the Getting Started guide, two problems arise when launching the debugger:
Setting "gdbpath" in launch.json is marked as not allowed When launching the setting is ignored, and arm-none-eabi-gdb is used, which is unavailable It seems that setting "cortex-debug.gdbpath" can only be set in settings.json
So remove.
"gdbpath" : "gdb-multiarch" from launch.json and add "cortex-debug.gdbPath": "gdb-multiarch" to settings.json.
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