4570a9047d
1 - The current linker flags undefines `Reset_Handler' and uses `entry()' as default entry point (specified by `-e'), which will cause a invalid reset vector in the image without proper crt0 init assembly routine. 2 - The default startup files provided by NXP violate the crt0 assumption that bss section will be filled with zero unless macro `__STARTUP_CLEAR_BSS' is defined. This will cause RTT hook funtion pointers set to non-NULL values at kernel start, thus successfully passes the `RT_nnnn_HOOK_CALL` checks and jumps to an invalid pointer. 3 - The default heap size used by TCB and kernel objects are set by linker file macros, which is 0x400 (1024 bytes). The size is too small for main task and the allocation will fail before the first task being created. This patch restores Reset_Handler as default reset vector and executes entry by replacing __START from newlib, defines the `__STARTUP_CLEAR_BSS` macro to forcibly zeroize the bss section to avoid unexpected hard faults, set proper heap sizes based on the SRAM sizes. Some unused compiler/linker flags are also removed or replaced to avoid future confusion. The heap sizes for different devices are: * LPC55(S)69/LPC55(S)28: 64kB * LPC55(S)06/LPC55(S)16/LPC55(S)36: 32kB Signed-off-by: Yilin Sun <imi415@imi.moe> |
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|---|---|---|
| .. | ||
| applications | ||
| board | ||
| figures | ||
| .config | ||
| .gitignore | ||
| Kconfig | ||
| README.md | ||
| README_zh.md | ||
| SConscript | ||
| SConstruct | ||
| flashdebug.ini | ||
| project.ewd | ||
| project.ewp | ||
| project.ewt | ||
| project.eww | ||
| project.uvoptx | ||
| project.uvprojx | ||
| rtconfig.h | ||
| rtconfig.py | ||
| template.ewd | ||
| template.ewp | ||
| template.ewt | ||
| template.eww | ||
| template.uvoptx | ||
| template.uvprojx | ||
README.md
LPC55S69-EVK BSP Introduction
English | 中文
1. Introduction
The LPC55S69 is a high-performance microcontroller based on the Cortex-M33 core from NXP Semiconductors. Includes the following hardware features:
| HARDWARE | DESCRIPTION |
|---|---|
| Chip model | LPC556x/LPC55S6x Full range |
| CPU | Cortex-M33 Dual Core, with FPU |
| Frequency | 150MHz |
| Basic peripherals | 8 x Flexcomm (optionally configured as USART/SPI/I2C/I2S) / 1 x 50MHz SPI / Dual USB (1 H and 1 Full, Master-Slave Support) |
| Characteristic | PowerQuad DSP coprocessor/security peripheral: PRINCE/PUF/CASPER/AES-256/HASH |
2. Hardware development system
3. Quickly Get Started
| ENVIRONMENT | DESCRIPTION |
|---|---|
| PC Operating System | Linux/MacOS/Windows |
| Compiler | arm-none-eabi-gcc version 6.3.1 20170620 (release)/armcc/iar |
| Build tools | scons/mdk5/iar |
| Depends | Env tool/(MDK or IAR or arm-none-eabi-gcc)/git/debugger driver |
- Download the source code
git clone https://github.com/RT-Thread/rt-thread.git
- Configure the project and prepare the ENV
（Linux/Mac）
cd rt-thread/bsp/lpc55s69_evk
scons --menuconfig
source ~/.env/env.sh
pkgs --upgrade
（Windows）
Download the ENV toolkit [RT-Thread][1]
- Configure the chip model
（Linux/Mac）
scons --menuconfig
（Windows(use ENV)）
menuconfig
On the menuconfig page, configure and select the corresponding chip model, if the development environment is MDK/IAR, you need to generate the project.
- Build Project (please skip this step under Mac/Linux)
（Windows IAR）
SET RTT_CC=iar
scons --target=iar -s
（Windows MDK5）*
scons --target=mdk5 -s
*This board support package does not support projects that generate MDK4
MDK and IAR must manually select the chip signal once in the project after the project is built, otherwise a serious compilation error will be generated.
Note: Because some versions of Keil5 have issues with AC6 compiler support, it is recommended to upgrade keil to the latest version
Some error messages are as follows:
Or you can choose to refer to this forum post:AC6 compiler error unsupported option '--c99' solution
- Compile
To use the MDK or IAR, see the corresponding tutorial
（Windows arm-none-eabi-gcc） Use the following command to set the GCC path
SET RTT_EXEC_PATH=[GCC path]
（Linux/Mac arm-none-eabi-gcc） Use the following command to set the GCC path
export RTT_EXEC_PATH=[GCC path]
Compile（WindowsLinux/Mac arm-none-eabi-gcc）
scons -j4
Or use the scons --exec-path="GCC toolchain path"command to compile directly while specifying the toolchain location.
The following message indicates that the compilation was successful
LINK rtthread-lpc55s69.elf
arm-none-eabi-objcopy -O binary rtthread-lpc55s6x.elf rtthread.bin
arm-none-eabi-size rtthread-lpc55s69.elf
text data bss dec hex filename
41596 356 1456 43408 a990 rtthread-lpc55s6x.elf
scons: done building targets.
If compiled correctly, the rtthread-lpc55s6x.elf, rtthread.bin file will be generated. where rtthread .bin binary firmware
3. Download and Execution
Programming can use emulators, ISPs, and other ways to repeat them here.
3.1 Running Results
If the compilation & programming is correct, you will see the RT-Thread startup logo information on the Flexcomm0 serial port*:
\ | /
- RT - Thread Operating System
/ | \ 4.0.1 build Jul 30 2019
2006 - 2019 Copyright by rt-thread team
uising armclang, version: 6120001
msh />
*Default serial port
4. Peripheral Condition
| On-board Peripherals | Support | Remark |
|---|---|---|
| UART | yes | UART0/2 |
| GPIO | yes | Automatically selects the pinout based on the chip model |
| SPI | yes | Support High Speed SPI |
| USB Device | no | |
| USB Host | no | |
| Windowed WatchDog | no | |
| ADC | no | |
| I2C | yes | Can be used with MMA8562 |
| I2C Sensor | yes | Acquire onboard MMA8562 accelerometer data |
| RTC | yes | RTC clock auto-configuration |
| SDIO | yes | Operate the SD card |
| I2S | no |
5.Notes
- Please use env (v1.3.5) download
- Please use the version is higher than 5.3 keil