STC8G&STC8H封装库

# About FwLib_STC8 is a lite firmware library for STC8G/STC8H series MCU. ## Official Datasheets, User Manuals * STC8A/8F: [Chinese](http://www.stcmcudata.com/STC8F-DATASHEET/STC8A-STC8F.pdf), [English](http://www.stcmcudata.com/STC8F-DATASHEET/STC8-english-20180320.pdf) * STC8G: [Chinese](http://www.stcmcudata.com/STC8F-DATASHEET/STC8G.pdf), [English](https://www.stcmcudata.com/STC8F-DATASHEET/STC8G-EN.pdf) * STC8H: [Chinese](http://www.stcmcudata.com/STC8F-DATASHEET/STC8H.pdf), [English](https://www.stcmcudata.com/STC8F-DATASHEET/STC8H-EN.pdf) # Features * Compatible with SDCC and Keil C51 * Optimized for constrained 8-bit MCU resources * Readable code for on-chip resources operation * Demos for quick start # PlatformIO Quick Start 1. Clone this repository to local file system ```bash # GitHub git clone https://github.com/IOsetting/FwLib_STC8.git FwLib_STC8 # or Giteee (for Chinese users) git clone https://gitee.com/iosetting/fw-lib_-stc8.git FwLib_STC8 ``` 2. Copy(or move) it to your PlatformIO project library, the file structure ``` ├── include ├── lib │   └── FwLib_STC8 │   ├── demo │   ├── include │   └── src ├── src └── test ``` 3. Add compile arguments in platformio.ini ``` build_flags = -D__CONF_FOSC=36864000UL ;The osc/irc frequency you MCU will be running on -D__CONF_MCU_MODEL=MCU_MODEL_STC8H3K32S2 ;change this to your MCU type -D__CONF_CLKDIV=0x02 ;frequency trimming -D__CONF_IRCBAND=0x03 -D__CONF_VRTRIM=0x19 -D__CONF_IRTRIM=0x28 -D__CONF_LIRTRIM=0x00 ``` 4. Include `fw_hal.h` in your code ```c #include "fw_hal.h" ``` then it's ready to use. # Keil C51 Quick Start 1. Clone this repository to local file system ```bash # GitHub git clone https://github.com/IOsetting/FwLib_STC8.git FwLib_STC8 # or Giteee (for Chinese users) git clone https://gitee.com/iosetting/fw-lib_-stc8.git FwLib_STC8 ``` 2. Copy(or move) it to your Keil C51 project directory, 3. Add it to project through Project -> Manage -> Project Items, 4. Open project option dialog by clicking Project -> Options for Target ... , switch to C51 tab, and input following content in Preprocessor Symbols -> Define: ``` __CX51__, __CONF_MCU_MODEL=MCU_MODEL_STC8H3K32S2,__CONF_FOSC=36864000UL ``` The explanation of these arguments ``` __CX51__ This will tell the macros to switch to Keil C51 keywords __CONF_MCU_MODEL, change this to your MCU type, please look into FwLib_STC8/include/fw_conf.h for all available types. __CONF_FOSC The osc/irc frequency you MCU will be running on. It equals to the frequency this MCU will be trimmed to in STC-ISP. ``` 5. Include `fw_hal.h` in your code ```c #include "fw_hal.h" ``` then it's ready to use. # Macros Some macros were introduced for code compatibility with Keil C51 and SDCC. The naming is from [sdcc compiler.h](https://sourceforge.net/p/sdcc/code/HEAD/tree/trunk/sdcc/device/include/mcs51/compiler.h). If you want your code to work with both compilers, you need to stick to these macros instead of the compiler specific keywords: Here is a list of the macros: | Macro | Keil C51 | SDCC | | ----------- | ---------------- | ----------------- | | __BIT | bit | __bit | | __IDATA | idata | __idata | | __PDATA | pdata | __pdata | | __XDATA | xdata | __xdata | | __CODE | code | __code | | SBIT(name, addr, bit) | sbit name = addr^bit | __sbit __at(addr+bit) name | | SFR(name, addr) | sfr name = addr | __sfr __at(addr) name | | SFRX(addr) | (*(unsigned char volatile xdata *)(addr)) | (*(unsigned char volatile __xdata *)(addr)) | | SFR16X(addr) | (*(unsigned int volatile xdata *)(addr)) | (*(unsigned int volatile __xdata *)(addr)) | | INTERRUPT(name, vector) | void name (void) interrupt vector | void name (void) __interrupt (vector) | | INTERRUPT_USING(name, vector, regnum) | void name (void) interrupt vector using regnum | void name (void) __interrupt (vector) __using (regnum) | | NOP() | _nop_() | __asm NOP __endasm | The definition of these macros can be found in include/fw_reg_base.h # License Copyright (c) 2021-present IOsetting <iosetting@outlook.com> The FwLib_STC8 is licensed under the permissive Apache 2.0 license, you can use it in both commercial and personal projects with confidence.