3 #define CPU_CLOCK_MHZ 72
7 // #define DEBUG_SEMIHOSTING
8 #define DEBUG_USART USART1
10 // MODBUS library parameters
12 #define MODBUS_USART USART2
13 #define MODBUS_NVIC_USART_IRQ NVIC_USART2_IRQ
14 #define MODBUS_USART_ISR usart2_isr
16 #define MODBUS_TXEN_GPIO_PORT GPIOA
17 #define MODBUS_TXEN_GPIO_PIN GPIO1
19 #define MODBUS_TIMER TIM2
20 #define MODBUS_NVIC_TIMER_IRQ NVIC_TIM2_IRQ
21 #define MODBUS_TIMER_ISR tim2_isr
23 #define MODBUS_OUR_ADDRESS 42
25 #define MODBUS_BAUD_RATE 19200