GPIO_InitStructure.GPIO_Pin = GPIO_Pin_12 | GPIO_Pin_13| GPIO_Pin_14| GPIO_Pin_15;
GPIO_InitStructure.GPIO_Mode = GPIO_Mode_OUT;
GPIO_InitStructure.GPIO_OType = GPIO_OType_PP;
- GPIO_InitStructure.GPIO_Speed = GPIO_Speed_2MHz;
- GPIO_InitStructure.GPIO_PuPd = GPIO_PuPd_NOPULL;
+ GPIO_InitStructure.GPIO_Speed = GPIO_Speed_50MHz;
+ GPIO_InitStructure.GPIO_PuPd = GPIO_PuPd_UP;
GPIO_Init(GPIOD, &GPIO_InitStructure);
}
}
-//! Initialize the USART
-void usartinit(){
- GPIO_InitTypeDef GPIO_InitStructure;
- USART_InitTypeDef USART_InitStructure;
-
+/**************************************************************************************/
+void Repair_Data();
+void RCC_Configuration(void)
+{
/* --------------------------- System Clocks Configuration -----------------*/
/* USART1 clock enable */
RCC_APB2PeriphClockCmd(RCC_APB2Periph_USART1, ENABLE);
/* GPIOB clock enable */
RCC_AHB1PeriphClockCmd(RCC_AHB1Periph_GPIOB, ENABLE);
-
-
-
+}
+
+/**************************************************************************************/
+
+void GPIO_Configuration(void)
+{
+ GPIO_InitTypeDef GPIO_InitStructure;
+
/*-------------------------- GPIO Configuration ----------------------------*/
GPIO_InitStructure.GPIO_Pin = GPIO_Pin_6 | GPIO_Pin_7;
GPIO_InitStructure.GPIO_Mode = GPIO_Mode_AF;
/* Connect USART pins to AF */
GPIO_PinAFConfig(GPIOB, GPIO_PinSource6, GPIO_AF_USART1); // USART1_TX
GPIO_PinAFConfig(GPIOB, GPIO_PinSource7, GPIO_AF_USART1); // USART1_RX
-
+}
+
+/**************************************************************************************/
+
+void USART1_Configuration(void)
+{
+ USART_InitTypeDef USART_InitStructure;
+
/* USARTx configuration ------------------------------------------------------*/
/* USARTx configured as follow:
- BaudRate = 9600 baud
USART_InitStructure.USART_Parity = USART_Parity_No;
USART_InitStructure.USART_HardwareFlowControl = USART_HardwareFlowControl_None;
- //USART_InitStructure.USART_Mode = USART_Mode_Rx | USART_Mode_Tx;
- USART_InitStructure.USART_Mode = USART_Mode_Tx;
+ USART_InitStructure.USART_Mode = USART_Mode_Rx | USART_Mode_Tx;
USART_Init(USART1, &USART_InitStructure);
USART_Cmd(USART1, ENABLE);
}
+
+
+//! Initialize the USART
+void usartinit(){
+ RCC_Configuration();
+
+ GPIO_Configuration();
+
+ USART1_Configuration();
+}
//! Initialize the STM32F4xx ports and USB.
ioinit();
usartinit();
+ while(i--) stmdelay();
+
+ serial0_tx(0xAA);
return;
}
//! Transmit a byte.
void serial0_tx(unsigned char x){
- spiword(0xdead);
+ spiword(0xdeadbeef);
- while(USART_GetFlagStatus(USART1, USART_FLAG_TXE) == RESET);
+ spiword(USART1->SR);
+
+ while(USART_GetFlagStatus(USART1, USART_FLAG_TXE) == RESET) //original
+ spiword(USART1->SR);
USART_SendData(USART1, (uint16_t) x);
- spiword(0xbeef);
+ spiword(USART1->SR);
+
+ stmdelay();
+ stmdelay();
+ stmdelay();
+ stmdelay();
+ stmdelay();
+ stmdelay();
+
}
//! Transmit a byte on the second UART.