107 lines
3.8 KiB
Markdown
107 lines
3.8 KiB
Markdown
# About
|
|
|
|
FwLib_STC8 is a lite firmware library for STC8G/STC8H series MCU.
|
|
|
|
# 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. |