### Button SW      PC13
### LED indicator  PB10
### TEST PORT ###
#define TEST_PORT       PA_8    # D7

### USART2 ###
# PA2     ------> USART2_TX
# PA3     ------> USART2_RX

### PWM With TIM3 ###
// Use PWM3-1,PWM3-2 with TIM3
#define PWM_PORT_LEFT_HI    PB_5    // TIM3_CH2
#define PWM_PORT_RIGHT_HI   PB_4    // TIM3_CH1

// Use PWM3-3,PWM3-4 with TIM3
#define PWM_PORT_LEFT_LOW   PC_9    // TIM3_CH4
#define PWM_PORT_RIGHT_LOW  PC_8    // TIM3_CH3

### SPI1 ###
# PB6(CS) chip select port
# PA5(SCK)
# PA6(MISO)
# PA7(MOSI)
