the template and libraries for stm8l + SDCC

This repo contain the source code from https://github.com/lujji.
I modified to make it support with STM8L151F3.

GPIO PushPull, Open drain. Input pull up and interrupt.
ADC (currently paired with DMA).
DMA (currently working with ADC, other peripheral coming soon).
I2C Slave / Master with iterrupt, 400KHz 100KHz (never try 1MHz).
UART TX RX with interrupt(IrDA is W.I.P.).
SPI Master tested, really easy to use. Slave code might be soon.
EEPROM Read/Write.
FLASH Read/Write, Lock/Unlock (Once locked, require resetting the chip 2 times (press reset button) in order to unlock it again).
TIMER TIM2 TIM4 PWM example is available. Now working on quadrature encoder (with CDM102 project).
Delay Not so accurate but works just fine. Available for 1MHz 2MHz 4MHz 8MHz and 16MHz Clock speed. DelayTIM4 More accurate delay by using timer4.
Device ID Return X Y wafer coordinate (2 bytes) and Wafer number (1 byte).
RTC Time, Date setting, Periodic interrupt waking up. Alarm and tamper detection not tested. Beeper Working perfectly. Thought it shares pin with SWIM. Be careful.