{"id":8330,"date":"2018-09-17T12:14:55","date_gmt":"2018-09-17T12:14:55","guid":{"rendered":"http:\/\/blog.bachi.net\/?p=8330"},"modified":"2019-01-27T09:47:57","modified_gmt":"2019-01-27T09:47:57","slug":"hifive-1","status":"publish","type":"post","link":"https:\/\/blog.bachi.net\/?p=8330","title":{"rendered":"TSM_EmbReal – HiFive 1"},"content":{"rendered":"

HiFive1 | Crowd Supply<\/a>
\nWikipedia SiFive<\/a><\/p>\n

HiFive1 | SiFive<\/a>
\nDocumentation | SiFive<\/a>
\nRISC-V Tools | SiFive<\/a><\/p>\n

SEGGER Adds Support for SiFive’s Coreplex IP to Its Industry Leading J-Link Debug Probe<\/a>
\nOpen Source RISC \u2013 Eclipse with RISC-V on the SiFive HiFive1 Board<\/a>
\nPlatformIO RISC-V<\/a>
\nRISC-V Foundation | Instruction Set Architecture (ISA)<\/a><\/p>\n

Tutorials<\/h3>\n

FE310G: an open source RISC-V microcontroller \u2013 Introduction<\/a>
\nFE310G: an open source RISC-V microcontroller \u2013 Interrupt System<\/a>
\nFE310G: an open source RISC-V microcontroller \u2013 IDE<\/a><\/p>\n

Core vs. Hart<\/h3>\n

Definition of “hart”<\/a>
\nAdd a definition for hart<\/a>
\nRiscV spec references the word ‘hart’ – what does ‘hart’ mean?<\/a><\/p>\n

Platform<\/h3>\n

GreenWaves Technologies GAP8: The IoT Application Processor<\/a>
\nPULP Platform – Open hardware, the way it should be!<\/a><\/p>\n

Abbrefiations and Dictionary<\/h3>\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n
ISR<\/td>\nInterrupt Service Routine<\/td>\n<\/tr>\n
IST<\/td>\nInterrupt Service Table<\/td>\n<\/tr>\n
CSR<\/td>\nControl status register<\/td>\n<\/tr>\n
IER<\/td>\nInterrupt enable register<\/td>\n<\/tr>\n
ISA<\/td>\nInstruction Set Architecture<\/td>\n<\/tr>\n
PLIC<\/td>\nPlatform-Level Interrupt Controller<\/td>\n<\/tr>\n
CLINT<\/td>\nCore Local Interruptor<\/td>\n<\/tr>\n
AON<\/td>\nAlways-On<\/td>\n<\/tr>\n
WDT<\/td>\nWatchdog Timer<\/td>\n<\/tr>\n
RTC<\/td>\nReal-Time Clock<\/td>\n<\/tr>\n
PMU<\/td>\nPower-Management Unit<\/td>\n<\/tr>\n
OTP<\/td>\nOne-Time Programmable Memory<\/td>\n<\/tr>\n
GPIO<\/td>\nGeneral Purpose Input\/Output Controller<\/td>\n<\/tr>\n
<\/td>\n<\/td>\n<\/tr>\n
<\/td>\n<\/td>\n<\/tr>\n<\/table>\n

git<\/h3>\n

GitLab: Hans Buchmann<\/a>
\ngitlab.fhnw.ch\/edu\/tsm-embreal<\/a><\/p>\n

Wikipedia<\/h3>\n

Befehlssatz<\/a>, Instruction Set
\nBefehlssatzarchitektur<\/a>, Instruction Set Architecture (ISA)<\/p>\n

Hardware I\/O Functions \/ Alternate Functions (UART, SPI, PWM)<\/h2>\n

HiFive-1 Bare Bones<\/a>
\nPIO_IOF_SEL in LED Fade Demo<\/a>
\ngithub.com\/sifive\/freedom-e-sdk\/blob\/master\/bsp\/include\/sifive\/devices\/gpio.h<\/a>
\nhttps:\/\/github.com\/sifive\/freedom-e-sdk\/blob\/master\/software\/led_fade\/led_fade.c<\/a>
\nhttps:\/\/github.com\/sifive\/freedom-e-sdk\/blob\/master\/bsp\/env\/freedom-e300-arty\/platform.h<\/a><\/p>\n

github.com\/RIOT-OS\/RIOT\/blob\/master\/cpu\/fe310\/include\/vendor\/platform.h<\/a><\/p>\n

[PATCH 12\/15] HiFive1: add UART support<\/a>
\nRTEMS BSP for HiFive1<\/a>
\n[PreGSoC 2017] Make a port of RTEMS for HiFive1<\/a>
\nUtilizing full power of RISC-V architecture via usage of RTEMS on top of SiFive FE310 processors<\/a><\/p>\n

\r\nGPIO_IOF_EN\r\nGPIO_IOF_SEL\r\n\r\nvs.\r\n\r\nGPIO_OUTPUT_EN\r\nGPIO_OUTPUT_VAL\r\n<\/pre>\n
C++<\/h2>\n
C++ Standard<\/h3>\n
Which C++ standard is the default when compiling with g++?<\/a>
\nStandard Predefined Macros<\/a><\/p>\n
\r\n$ g++ -dM -E -x c++  \/dev\/null | grep -F __cplusplus\r\n#define __cplusplus 201402L ==> 2014 C++ standard\r\n<\/pre>\n
C++ Syntax<\/h3>\n
Private members<\/h4>\n
\r\nclass PrivateClass {\r\n\r\n    int a;\r\n    int b;\r\n\r\n    PrivateClass();\r\n};\r\n\r\nPrivateClass::PrivateClass() :\r\na(0),\r\nb(1)\r\n{\r\n    \/\/\r\n}\r\n<\/pre>\n
\r\n#include "PrivateClass.h"\r\n\r\nint main()\r\n{\r\n    PrivateClass k;\r\n}\r\n<\/pre>\n
\r\nsrc\/main.cpp: In function \u2018int main()\u2019:\r\nsrc\/main.cpp: error: \u2018PrivateClass::PrivateClass()\u2019\r\n                     is private within this context\r\n     PrivateClass k;\r\n<\/pre>\n
Private Static Instantiation<\/h4>\n
\r\n#include "stdio.h"\r\n\r\nclass StaticClass {\r\n\r\n    static StaticClass k;\r\n\r\n    int a;\r\n    int b;\r\n\r\n    StaticClass();\r\n};\r\n\r\nStaticClass StaticClass::k;\r\n\r\nStaticClass::StaticClass() :\r\na(0),\r\nb(1)\r\n{\r\n    printf("Hurra\\n");\r\n}\r\n<\/pre>\n
\r\nint main()\r\n{\r\n    \/\/\r\n}\r\n<\/pre>\n
\r\n$ .\/main\r\nHurra\r\n<\/pre>\n
final<\/h4>\n
What is the purpose of the \u201cfinal\u201d keyword in C++11 for functions?<\/a>
\nfinal specifier (since C++11)<\/a>
\noverride specifier (since C++11)<\/a><\/p>\n
\r\nclass Person final {\r\n   [...]\r\n}\r\n\r\nclass Andreas : Person {\r\n   [...]\r\n};\r\n\r\n\/\/ error: cannot derive from \u2018final\u2019 base \u2018Person\u2019 in derived type \u2018Andreas\u2019\r\n<\/pre>\n
\r\nclass Person {\r\n   virtual void print() final;\r\n}\r\n\r\nclass Andreas : Person {\r\n   virtual void print() final;\r\n};\r\n\r\n\/\/ error: virtual function \u2018virtual void Andreas::print()\u2019\r\n\/\/ overriding final function \u2018virtual void Person::print()\u2019\r\n<\/pre>\n
static vs. const<\/h4>\n
How to initialize private static members in C++?<\/a><\/p>\n
\r\nclass ConstClass {\r\n\r\n    static int a       = 1;\r\n    static const int b = 2;\r\n\r\n    ConstClass();\r\n};\r\n\r\nConstClass::ConstClass()\r\n{\r\n    \/\/\r\n}\r\n<\/pre>\n
\r\nint main()\r\n{\r\n    \/\/\r\n}\r\n<\/pre>\n
\r\nIn file included from src\/ConstClass.cpp:2:0:\r\ninclude\/ConstClass.h:6:16: error: ISO C++ forbids in-class\r\n                                  initialization of non-const\r\n                                  static member \u2018ConstClass::a\u2019\r\n     static int a       = 1;\r\n<\/pre>\n
\r\nclass ConstClass {\r\n\r\n    static int a;\r\n    static const int b = 2;\r\n\r\n    ConstClass();\r\n};\r\n\r\nint ConstClass::a = 1;\r\n\r\nConstClass::ConstClass()\r\n{\r\n    \/\/\r\n}\r\n<\/pre>\n
const<\/h4>\n
Meaning of ‘const’ last in a function declaration of a class?<\/a>
\nC++-Programmierung\/ Eigene Datentypen definieren\/ Methoden<\/a><\/p>\n
\r\nclass Person {\r\n    void foo() const;   \/* this pointer is const =>\r\n                           cannot change any member data *\/\r\n}\r\n\r\nclass A {\r\n    public:\r\n        int a, b, c, d;\r\n};\r\n\r\nclass B {\r\n    public:\r\n        \/* Das \u00fcbergebene A-Objekt ist innerhalb \r\n           der Methode konstant *\/\r\n        void methode(A const& parameter_name);\r\n};\r\n<\/pre>\n
Operator Overload<\/h4>\n
\r\nclass Person {\r\n    operator unsigned() const;   \/* cast-operator *\/\r\n}\r\n<\/pre>\n
template<\/h4>\n
What does template  mean?<\/a>
\nTemplate (C++)<\/a><\/p>\n
Type Parameters<\/p>\n