[STM8] STM8L 해보기 2

 

STM8L 해보기 2

이번에 사용하는 MCU 는 STM8L151 이다. 저전력용이라 예를 들어 리모콘용으로 사용 된다.

스펙을 한번 보면 아래와 같다.

• Operating conditions

– Operating power supply: 1.65 to 3.6 V

(without BOR), 1.8 to 3.6 V (with BOR)

– Temperature range: -40 to 85 or 125 °C

( 전압범위와 온도범위는 기본적으로 산업용 장비에 사용 가능 하다.)

 

• Low power features

– 5 low power modes: Wait, Low power run, Low power wait, Active-halt with RTC, Halt

– Ultralow leakage per I/0: 50 nA

– Fast wakeup from Halt: 5 μs

( 저전력으로 사용가능하도록 성계 되어 있다.)

 

• Advanced STM8 core

– Harvard architecture and 3-stage pipeline

– Max freq: 16 MHz, 16 CISC MIPS peak

– Up to 40 external interrupt sources

(성능 좋은 CORE 같아. 사용하다 보면 Atmega128보다 좋아보인다.)

 

• Reset and supply management

– Low power, ultrasafe BOR reset with 5 selectable thresholds

– Ultralow power POR/PDR

– Programmable voltage detector (PVD)

 

• Clock management

– 32 kHz and 1-16 MHz crystal oscillators

– Internal 16 MHz factory-trimmed RC

– Internal 38 kHz low consumption RC

– Clock security system

(내부 발징을 이용해서 사용중인데 생각보다 좋다.)

• Low power RTC

– BCD calendar with alarm interrupt

– Digital calibration with +/- 0.5 ppm accuracy

– LSE security system

– Auto-wakeup from Halt w/ periodic interrupt

 

• Memories

– Up to 8 Kbytes of Flash program memory plus 256 bytes of data EEPROM with ECC

– Flexible write/read protection modes

– 1 Kbyte of RAM

• DMA

– 4 channels supporting ADC, SPI, I2C,

USART, timers

– 1 channel for memory-to-memory

 

• 12-bit ADC up to 1 Msps/28 channels

– Temp. sensor and internal ref. voltage

 

• 2 ultralow power comparators

– 1 with fixed threshold and 1 rail to rail

– Wakeup capability

 

• Timers

– Two 16-bit timers with 2 channels (IC, OC,PWM), quadrature encoder (TIM2, TIM3)

– One 8-bit timer with 7-bit prescaler (TIM4)

– 1 Window and 1 independent watchdog

– Beeper timer with 1, 2 or 4 kHz frequencies

 

• Communication interfaces

– One synchronous serial interface (SPI)

– Fast I2C 400 kHz

– One USART

 

• Up to 41 I/Os, all mappable on interrupt vectors

 

• Up to 20 capacitive sensing channels

– supporting touchkey, proximity touch, linear touch, and rotary touch sensors

 

• Development support

– Fast on-chip programming and nonintrusive debugging with SWIM

– Bootloader using USART

 

• 96-bit unique ID

(IC 별로 고유 ID가 있어서 재미있게 사용 가능 하다.)

세그먼트 LCD나 터치 등 다양한 기능이 있는다. 참 저렴한 놈이 별 기능이 다 들어 있다.