Open Source Software for Embedded Components（ abbreviation：OSS-EC ）
Hardware components classification
Hardware is classified according to the hardware architecture configuration as shown in the table below.
| Hardware components | ：H-CMP | Components Exp |
|---|---|---|
| ystem Components | ：S-CMP | Sensor , Actuator , Motor , Switch , Relay , etc |
| Circuit/IC Components | ：C-CMP | Modulation circuit , Transformer circuit , Control ICC , etc |
| Microcontroller Unit | ：M-CMP | IO Port , ADC , IC , OC , PWM , DMA , Ethernet , SPI , I2C , etc |
Program Classification
OSS-EC programs are grouped into program components (P-CMP) for each components, and programs are classified within the program components according to the above hardware architecture classification as shown in the table below.
| Program Classification | ：P-CMP | Overview |
|---|---|---|
| S-CMP Program | ：SP | S-CMP compliant programs |
| C-CMP Program | ：CP | C-CMP compliant programs |
| M-CMP Program | ：MP | M-CMP compliant programs |
P-CMP Architecture
The architecture of P-CMP categorizes the functions as shown in the table below. A wide variety of Components and a wide variety of RTOS are supported by the software hierarchy and the Wrapper to make standard parts of the program.
| Layer | abbreviation | Overview | Function |
|---|---|---|---|
| P-CMP | pcmp | Interface (wrapper) function that abstracts P-CMP from Application. | Matching of P-CMP function names with interface variables, etc. |
| SP Wrapper | SPW | Wrapper function to abstract SP from other programs. | Matching SP function names to interface variables, etc. |
| SP Layer | SPL | SP Layer | Mainly S-CMP conversion function |
| CP Wrapper | CPW | Wrapper function to abstract CP from other programs. | Matching CP function names to interface variables, etc. |
| CP Layer | CPL | CP Layer | Mainly C-CMP conversion function and sequence control function. |
| MP Wrapper | MPW | Wrapper functions to abstract MP from other programs. | Matching MP function names to interface variables, etc. |
| MP Layer | MPL | MP Layer | Mainly control functions of M-CMP. |
Programming Language
The programming language is C. However, in the case of Mbed, the file extension is cpp because it is in c++ language.
P-CMP Customize
OSS-EC provides the following functional customized P-CMPs to meet the needs of each product. The following P-CMP specifications can be selected. The following P-CMP specifications can be selected and will be developed sequentially to meet your needs.
| OS Type | Multi-Thread ( Mbed ) Multi-Task ( AUTOSAR ） |
| Calculation accuracy | floating-point calculation integer calculation |
| Property Conversion | linear equation Non-linear equations（2D Table） Non-linear equations（3D Table） |
| Filter | Exponential moving average（EMA） y = k * x + ( 1 – k ) * yn-1 Simple moving average（SMA） y = ( xn + xn-1 + xn-2 + … ) / n Weighted moving average（WMA） y = ( xn * kn + xn-1 * kn-1 + xn-2 * kn-2 + … ) / ( kn + kn-1 + kn-2 + …) Non-Filter |
| Error detection | MP Error detection CP Max/Min Error detection SP Max/Min Error detection Non-Error detection |
OS type ： Different operating systems are supported by the Wrapper
P-CMP File
| main.c ( Mbeb main.cpp) | Sample main Function File |
| pcmp.c ( Mbed pcmp.cpp) | P-CMP（SPLおよびCPL、MPL、CPW、MPW（HAL含む）、Library）Function File |
| pcmp.h | main.c & pcmp.c interface Header File |
| oss_ec.h | OSS-EC Header File |