STM32 및 개발보드 소개
Jang Hyunsung
[email protected]
Embedded Systems Lab.
Dept. of CSE, PNU
2008. 11. 06
Contents
STM32 소개
STM32F103 Module Board소개
References
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Features
Core: ARM 32-bit Cortex™-M3 CPU
72 MHz, 90 DMIPS with 1.25 DMIPS/MHz
Single-cycle multiplication and hardware division
Memories
32-to-512 Kbytes of Flash memory
6-to-64 Kbytes of SRAM
Low power
Sleep, Stop and Standby modes
VBAT supply for RTC and backup registers
Up to 9 communication interfaces
Up to 3 USARTs (ISO 7816 interface, LIN, IrDA capability, modem control)
Up to 2 SPIs (18 Mbit/s)
CAN, I2C interfaces
USB 2.0 full speed interface
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STM32 key benefits
Leading-edge architecture with Cortex-M3 core
Harvard architecture
1.25 DMIPS/MHz and 0.19 mW/MHz
Thumb-2 instruction set brings 32-bit performance with 16-bit code
density
Single cycle multiply and hardware division
Embedded, fast interrupt controller is now inside the core allowing:
Excellent real-time behavior
Low latency down to six CPU cycles inter-interrupt
Six CPU cycles wake-up time from low-power mode
Up to 35% faster and up to 45% less code than ARM7TDMI®
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Cortex-M3 performance versus ARMTDMI
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Cortex-M3 interrupt versus ARM7TDMI
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Outstanding power efficiency
High performance does not mean high power consumption
– Current consumption as low as 27 mA @ 72MHz
The STM32 has three different low-power modes
Sleep mode (Cortex-M3 core stopped, peripherals kept running)
Stop mode (all clocks are stopped)
Standby mode (1.8v domain powered-off)
Auto-wakeup (AWU) from low-power mode
The RTC can be used to wakeup the MCU from low-power mode
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High level of integration
Built-in supervisor reduces need for external components:
Power-on reset, low-voltage detect, brown-out detect, watchdog timer
with independent clock
One main crystal drives entire system:
Inexpensive 4-16 MHz crystal drives CPU, USB and all peripherals
Embedded PLL generates multiple frequencies
Optional 32 kHz crystal for RTC
Embedded factory trimmed 8 MHz RC oscillator can be used as main
clock
Only 7 external passive components required for base system on
LQFP100 package
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STM32F10x block diagram
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Superior and innovative peripherals
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STM32F10x: first two product lines
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STM32 (ARM Cortex-M3) - 32-bit
Microcontroller Families
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STM32103 Module Board
제품 개요
8Mhz CLK을 사용하여 90DMIPS 동작(72MHz)
128K Flash, 20K RAM (충분한메모리->RTOS 포팅가능)
PWM 18Port 내장
Timer 7개 내장(Watchdog 포함)
I/O Max 49개 사용
USB 2.0 Full Speed(12MBit/s) 지원
3CH UART(IrDA 지원)
CAN 인터페이스 지원
16CH 12bit A/D Converter
3.3V Operaing Voltage
부트로더 내장 <- 시리얼로 프로그램 가능
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시리얼 커넥터 결선 방법
(프로그램 다운로드 및 시리얼 통신)
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References
STM32F103x6 datasheet
ST 홈페이지
www.st.com
STM32F103 Module Board 제작사
www.Lodin.co.kr
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