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Tangyuxin d724eed9fc
分离内存分配接口与内存分配算法 (#5175) 
* [kernel][mem] Multiple instances of small memory allocation algorithm

* [kernel][mem] Change small memory management algorithm memory header flag

* [kernel][mem] Fix assertion problem

* [kernel][slab] Multiple instances of slab memory management algorithm

* [kernel][memheap] Remove rt_malloc/rt_free/rt_realloc and other related memory interfaces

* [kernel][mem] Clean up memory space of small memory management objects

* [kernel][kservice] Add memory application interface and thread protection interface

* [kernel][kservice] Fix function return value problem

* [kernel][memheap] Optimize memheaptrace print

* [kernel][memheap] Support best mode

* [kernel][memory] Remove semaphore lock

* [kernel][memheap] Add locked flag

* [kernel][memory] Support malloc memory in interrupt

* [kernel][memheap] Add 'memheapcheck' cmd

* [kernel][mem] Fix failure to request full memory

* [kernel][memheap] Fix compilation warning

* [kernel][mem] Fix mem realloc ASSERT

* [examples][testcases] Add small mem testcase

* [examples][mem_tc] Modify test memory size

* [examples][testcases] Add slab memory management algorithm test case

* [examples][testcases] fix small memory management algorithm test case

* [kernel][memory] Adjusting memory allocation algorithm object definition and interface

* [kernel][memory] Fix compilation warning

* [examples][utest] Fix mem test case

* [examples][utest] fix slab test case

* [utest][testcases] Shorten test time

* [kernel][memory] Formatting code

* [examples][utest] Adjust test run time

* [examples][utest] Formatting code

* [bsp] update all rtconfig.h
 		2021-12-16 16:23:58 +08:00
..
applications [bsp][raspberry-pico]update file header 2021-01-28 22:24:27 +08:00
drivers [bsp][raspberry-pico]add uart1 support. 2021-03-24 20:03:52 +08:00
figures [add] raspberry-pico elf2uf2.exe 2021-02-02 17:38:19 +08:00
libraries [bsp][raspberry-pico]All memory is used for heap. 2021-03-24 18:57:23 +08:00
.config 分离内存分配接口与内存分配算法 (#5175) 2021-12-16 16:23:58 +08:00
Kconfig add raspberry-pico bsp 2021-01-28 19:59:59 +08:00
README.md [bsp][raspberry-pico]add uart1 support. 2021-03-24 20:03:52 +08:00
SConscript add raspberry-pico bsp 2021-01-28 19:59:59 +08:00
SConstruct Revert "Fix compiler flags issue" 2021-10-14 14:36:18 +08:00
link.ld [bsp][raspberry-pico]All memory is used for heap. 2021-03-24 18:57:23 +08:00
rtconfig.h 分离内存分配接口与内存分配算法 (#5175) 2021-12-16 16:23:58 +08:00
rtconfig.py [add] raspberry-pico elf2uf2.exe 2021-02-02 17:38:19 +08:00

README.md

Raspberry PICO

Introduction

Raspberry Pi Pico is a low-cost, high-performance microcontroller board with flexible digital interfaces.

Key features include:

  • RP2040 microcontroller chip designed by Raspberry Pi in the United Kingdom

  • Dual-core Arm Cortex M0+ processor, flexible clock running up to 133 MHz

  • 264KB of SRAM, and 2MB of on-board Flash memory

  • Castellated module allows soldering direct to carrier boards

  • USB 1.1 with device and host support

  • Low-power sleep and dormant modes

  • Drag-and-drop programming using mass storage over USB

  • 26 × multi-function GPIO pins

  • 2 × SPI, 2 × I2C, 2 × UART, 3 × 12-bit ADC, 16 × controllable PWM channels

  • Accurate clock and timer on-chip

  • Temperature sensor

  • Accelerated floating-point libraries on-chip

  • 8 × Programmable I/O (PIO) state machines for custom peripheral support

Pico-R3-Pinout

Supported compiler

Support GCC 6 and above compilers.

Program firmware

Step 1: build

scons -c
scons

gcc version >= 6.x.x

Step 2: flash

scons generates a UF2 file:

elf2uf2

  • Copy the rtthread-pico.uf2 file to the "RPI-RP2" disk
  • Then led blink.

Running Result

The output information on serial port should be like this:

 \ | /
- RT -     Thread Operating System
 / | \     4.0.3 build Jan 28 2021
 2006 - 2021 Copyright by rt-thread team
Hello, RT-Thread!
msh >

Peripheral Condition

Drive Support Remark
UART Support UART0/1
GPIO Support 0-29
I2C - -
RTC - -
SDIO - -
SPI - -
TIMER - -
WDT - -