void uart2Init(uint32_t speed, uartReceiveCallbackPtr func, bool rxOnly)
{
NVIC_InitTypeDef NVIC_InitStructure;
GPIO_InitTypeDef GPIO_InitStructure;
RCC_APB1PeriphClockCmd(RCC_APB1Periph_USART2, ENABLE);
uart2RxOnly = rxOnly;
NVIC_InitStructure.NVIC_IRQChannel = USART2_IRQn;
NVIC_InitStructure.NVIC_IRQChannelPreemptionPriority = 1;
NVIC_InitStructure.NVIC_IRQChannelSubPriority = 2;
NVIC_InitStructure.NVIC_IRQChannelCmd = ENABLE;
NVIC_Init(&NVIC_InitStructure);
// USART2_TX PA2
// USART2_RX PA3
GPIO_InitStructure.GPIO_Pin = GPIO_Pin_2;
GPIO_InitStructure.GPIO_Speed = GPIO_Speed_2MHz;
GPIO_InitStructure.GPIO_Mode = GPIO_Mode_AF_PP;
if (!rxOnly)
GPIO_Init(GPIOA, &GPIO_InitStructure);
GPIO_InitStructure.GPIO_Pin = GPIO_Pin_3;
GPIO_InitStructure.GPIO_Mode = GPIO_Mode_IPU;
GPIO_Init(GPIOA, &GPIO_InitStructure);
uart2Open(speed);
USART_ITConfig(USART2, USART_IT_RXNE, ENABLE);
if (!rxOnly)
USART_ITConfig(USART2, USART_IT_TXE, ENABLE);
uart2Callback = func;
}
void uart2Init(uint32_t speed, uartReceiveCallbackPtr func, bool rxOnly)
{
NVIC_InitTypeDef NVIC_InitStructure;
GPIO_InitTypeDef GPIO_InitStructure;
RCC_APB1PeriphClockCmd(RCC_APB1Periph_USART2, ENABLE);
uart2RxOnly = rxOnly;
NVIC_InitStructure.NVIC_IRQChannel = USART2_IRQn;
NVIC_InitStructure.NVIC_IRQChannelPreemptionPriority = 1;
NVIC_InitStructure.NVIC_IRQChannelSubPriority = 2;
NVIC_InitStructure.NVIC_IRQChannelCmd = ENABLE;
NVIC_Init(&NVIC_InitStructure);
// USART2_TX PD5
// USART2_RX PD6
GPIO_InitStructure.GPIO_Pin = GPIO_Pin_5;
GPIO_InitStructure.GPIO_Speed = GPIO_Speed_2MHz;
GPIO_InitStructure.GPIO_Mode = GPIO_Mode_AF;
GPIO_InitStructure.GPIO_OType = GPIO_OType_PP;
if (!rxOnly)
GPIO_Init(GPIOD, &GPIO_InitStructure);
GPIO_InitStructure.GPIO_Pin = GPIO_Pin_6;
GPIO_InitStructure.GPIO_Mode = GPIO_Mode_AF;
GPIO_InitStructure.GPIO_OType = GPIO_OType_PP;
GPIO_InitStructure.GPIO_PuPd = GPIO_PuPd_UP;
GPIO_Init(GPIOD, &GPIO_InitStructure);
GPIO_PinAFConfig(GPIOD, GPIO_PinSource5, GPIO_AF_USART2);
GPIO_PinAFConfig(GPIOD, GPIO_PinSource6,GPIO_AF_USART2);
uart2Open(speed);
USART_ITConfig(USART2, USART_IT_RXNE, ENABLE);
if (!rxOnly)
USART_ITConfig(USART2, USART_IT_TXE, ENABLE);
USART_Cmd(USART2, ENABLE);
uart2Callback = func;
}
void uart2ChangeBaud(uint32_t speed)
{
uart2Open(speed);
}
