====== STM32 ARM Cortex-M3 development board ====== STM32 F103 RBT6 SCM system board core board ARM Cortex-M3 development board STM32 F103 RBT6 function * Core: ARM 32-bit Cortex ™ -M3 CPU * The maximum operating frequency of 72MHz, up 1.25DMips / MHz (Dhrystone at zero wait cycle memory access 2.1) * Single-cycle multiply and hardware divide * Memory * From 64K or 128K bytes of Flash program memory * Up to 20K bytes of SRAM * clock, reset and power management * 2.0 to 3.6 V power supply and I / O pins * Power on / off reset (POR / PDR), programmable voltage monitoring Device (PVD) * 4 ~ 16MHz crystal oscillator * Built by the factory tuned 8MHz RC oscillator * Embedded with calibrated 40kHz RC oscillator * To generate the CPU clock PLL * 32kHz RTC oscillator with calibration function * Low power consumption * Sleep, shutdown and standby mode * VBAT supply for RTC and backup registers * 2 12-bit ADC, 1μs conversion time (up to 16 Input channels) * Conversion range: 0 to 3.6V * Dual sample and hold function * Temperature Sensor * DMA: * 7-channel DMA controller * Supported peripherals: timers, ADC, SPI, I2C and USART * Up to 80 fast I / O ports * 26/37/51/80 an I / O port, all I / O ports can be mapped to 16 external interrupts; almost all the ports can tolerate 5V signal * debug mode * Serial wire debug (SWD) and JTAG interfaces * Up to 7 timers * Three 16-bit timers, each timer has up to four for Input capture / output compare / PWM or pulse counting channel And incremental encoder input * 1 x 16 with dead-band control and emergency brake for motors * Advanced control timer PWM control * 2 watchdog timers (independent and window type) * System timer: 24-type counter is decremented * Up to 9 communication interfaces * Up to two I2C interface (supports SMBus / PMBus) * Up to three USART interface (supports ISO7816 interface, LIN, IrDA interface and modem control) * Up to two SPI interfaces (18M bit / sec) * CAN interface (2.0B Active) * USB 2.0 full speed interface * CRC calculating unit 96 the unique code chip {{ .stm32-front.jpg?direct | Front view}} {{ .stm32-back.jpg?direct | Back view}} {{ .stm32-circuit.jpg?direct | Circuit view}}