USART1 work fine not any other on STM32F429 Disco

[kapilsinghi123]

Posted on August 14, 2014 at 11:05

Hello All

I am working on STM32F429 with TFT and using DISCOVERY DISCO board Trying to use 2 UARTS ->>>> UART1 and UART 4 or 6 UART4 with PA0 and PA1 pins PA0 is tied to switch but it should show some activity. No Tx or Rx is working whereas same thing work fine on USART 1 Able to run UART1 and is working fine but nor any other! I am using real-term console for this experiment and have leds on my USB to serial for displaying any activity. its really frustrating..... Following is my code May be i am doing some thing wrong

1.
//***************************** USART_SETUP *******************************<br>void USART_SETUP(void)<br>{<br> GPIO_InitTypeDef GPIO_InitStructure;<br> USART_InitTypeDef USART_InitStruct;<br> <br> RCC_APB2PeriphClockCmd(RCC_APB2Periph_USART1, ENABLE);<br> RCC_APB2PeriphClockCmd(RCC_APB1Periph_UART4, ENABLE);<br>// RCC_APB2PeriphClockCmd(RCC_APB2Periph_USART6, ENABLE);<br> RCC_AHB1PeriphClockCmd(RCC_AHB1Periph_GPIOA, ENABLE);<br> /*<br><br><br> -------------------------- USART1 ---------------------------<br> PA9 is USART1_TX<br> PA10 is USART1_RX<br><br><br>xxxxxxxxxxx PB6 is USART1_TX<br> PB7 is USART1_RX<br><br><br> -------------------------- USART2 ---------------------------<br> PA2 is USART1_TX<br>xxxxxxxxxxx PA3 is USART1_RX<br> <br> PD5 is USART1_TX<br>xxxxxxxxxxx PD6 is USART1_RX<br> <br> -------------------------- USART3 ---------------------------<br>xxxxxxxxxxx PB10 is USART1_TX<br>xxxxxxxxxxx PB11 is USART1_RX<br> <br>xxxxxxxxxxx PC10 is USART1_TX<br> PC11 is USART1_RX<br> <br>xxxxxxxxxxx PD8 is USART1_TX<br>xxxxxxxxxxx PD9 is USART1_RX<br><br><br> -------------------------- USART4 ---------------------------<br> PA0 is USART1_TX<br> PA1 is USART1_RX<br> <br>xxxxxxxxxxx PC10 is USART1_TX<br> PC11 is USART1_RX<br> <br> -------------------------- USART5 ---------------------------<br> PC12 is USART1_TX<br> PC2 is USART1_RX<br> <br> -------------------------- USART6 ---------------------------<br>xxxxxxxxxxx PC6 is USART1_TX<br>xxxxxxxxxxx PC7 is USART1_RX<br> <br> PG14 is USART1_TX<br> PG9 is USART1_RX<br> <br> -------------------------- USART7 ---------------------------<br>xxxxxxxxxxx PE8 is USART1_TX<br>xxxxxxxxxxx PE7 is USART1_RX<br> <br> PF7 is USART1_TX<br> PF6 is USART1_RX<br> <br> -------------------------- USART8 ---------------------------<br>xxxxxxxxxxx PE1 is USART1_TX<br>xxxxxxxxxxx PE0 is USART1_RX<br> */ <br><br><br>/////// Configure USART1 Rx (PA10) as input<br> GPIO_InitStructure.GPIO_Pin = GPIO_Pin_10; <br> GPIO_InitStructure.GPIO_Mode = GPIO_Mode_AF;<br> GPIO_Init(GPIOA, &GPIO_InitStructure);<br><br>/////// Configure USART1 Tx (PA9) as alternate function<br> GPIO_InitStructure.GPIO_Pin = GPIO_Pin_9;<br> GPIO_InitStructure.GPIO_Speed = GPIO_Speed_100MHz;<br> GPIO_InitStructure.GPIO_Mode = GPIO_Mode_AF;<br> GPIO_Init(GPIOA, &GPIO_InitStructure); <br> <br> GPIO_PinAFConfig(GPIOA,GPIO_PinSource9,GPIO_AF_USART1);<br> GPIO_PinAFConfig(GPIOA,GPIO_PinSource10,GPIO_AF_USART1);<br><br><br><br><br> <br> // Configure UART4 Rx (PA1) as input<br> GPIO_InitStructure.GPIO_Pin = GPIO_Pin_1; <br> GPIO_InitStructure.GPIO_Mode = GPIO_Mode_AF;<br> GPIO_Init(GPIOA, &GPIO_InitStructure);<br><br> // Configure UART4 Tx (PA0) as alternate function<br> GPIO_InitStructure.GPIO_Pin = GPIO_Pin_0;<br> GPIO_InitStructure.GPIO_Speed = GPIO_Speed_100MHz;<br> GPIO_InitStructure.GPIO_Mode = GPIO_Mode_AF;<br> GPIO_Init(GPIOA, &GPIO_InitStructure); <br> <br> GPIO_PinAFConfig(GPIOA,GPIO_PinSource0 ,GPIO_AF_UART4);<br> GPIO_PinAFConfig(GPIOA,GPIO_PinSource1 ,GPIO_AF_UART4);<br> <br> <br> <br> <br> <br> // Configure USART6 Rx (PG9) as input<br> GPIO_InitStructure.GPIO_Pin = GPIO_Pin_9; <br> GPIO_InitStructure.GPIO_Mode = GPIO_Mode_AF;<br> GPIO_Init(GPIOG, &GPIO_InitStructure);<br><br> // Configure USART6 Tx (PG14) as alternate function<br> GPIO_InitStructure.GPIO_Pin = GPIO_Pin_14;<br> GPIO_InitStructure.GPIO_Speed = GPIO_Speed_100MHz;<br> GPIO_InitStructure.GPIO_Mode = GPIO_Mode_AF;<br> GPIO_Init(GPIOG, &GPIO_InitStructure); <br> <br> GPIO_PinAFConfig(GPIOG,GPIO_PinSource9 ,GPIO_AF_USART6);<br> GPIO_PinAFConfig(GPIOG,GPIO_PinSource14,GPIO_AF_USART6);<br> <br> /* USARTx configured as follow:<br> - BaudRate = 9600 baud <br> - Word Length = 8 Bits<br> - One Stop Bit<br> - No parity<br> - Hardware flow control disabled (RTS and CTS signals)<br> - Receive and transmit enabled<br> */<br> USART_InitStruct.USART_BaudRate = 57600;<br> USART_InitStruct.USART_WordLength = USART_WordLength_8b;<br> USART_InitStruct.USART_StopBits = USART_StopBits_1;<br> USART_InitStruct.USART_Parity = USART_Parity_No;<br> USART_InitStruct.USART_HardwareFlowControl = USART_HardwareFlowControl_None;<br> USART_InitStruct.USART_Mode = USART_Mode_Rx | USART_Mode_Tx;<br> USART_Init(USART1, &USART_InitStruct);<br><br><br> USART_InitStruct.USART_BaudRate = 9600;<br> USART_InitStruct.USART_WordLength = USART_WordLength_8b;<br> USART_InitStruct.USART_StopBits = USART_StopBits_1;<br> USART_InitStruct.USART_Parity = USART_Parity_No;<br> USART_InitStruct.USART_HardwareFlowControl = USART_HardwareFlowControl_None;<br> USART_InitStruct.USART_Mode = USART_Mode_Rx | USART_Mode_Tx;<br> USART_Init(UART4, &USART_InitStruct);<br><br><br> USART_Cmd(USART1, ENABLE);<br> USART_Cmd(UART4, ENABLE);<br>}<br><div></div>

#stm32f429discovery #uart4

[kapilsinghi123]

Posted on August 14, 2014 at 12:40

Code in normal format

//***************************** USART_SETUP *******************************void USART_SETUP(void){    GPIO_InitTypeDef GPIO_InitStructure;    USART_InitTypeDef USART_InitStruct;        RCC_APB2PeriphClockCmd(RCC_APB2Periph_USART1, ENABLE);    RCC_APB2PeriphClockCmd(RCC_APB1Periph_UART4, ENABLE);//    RCC_APB2PeriphClockCmd(RCC_APB2Periph_USART6, ENABLE);    RCC_AHB1PeriphClockCmd(RCC_AHB1Periph_GPIOA, ENABLE);    /*    -------------------------- USART1 ---------------------------            PA9  is USART1_TX            PA10 is USART1_RXxxxxxxxxxxx PB6  is USART1_TX            PB7  is USART1_RX    -------------------------- USART2 ---------------------------            PA2  is USART1_TXxxxxxxxxxxx PA3  is USART1_RX                        PD5  is USART1_TXxxxxxxxxxxx PD6  is USART1_RX                -------------------------- USART3 ---------------------------xxxxxxxxxxx PB10 is USART1_TXxxxxxxxxxxx PB11 is USART1_RX            xxxxxxxxxxx PC10 is USART1_TX            PC11 is USART1_RX            xxxxxxxxxxx PD8  is USART1_TXxxxxxxxxxxx PD9  is USART1_RX    -------------------------- USART4 ---------------------------            PA0  is USART1_TX            PA1  is USART1_RX            xxxxxxxxxxx PC10 is USART1_TX            PC11 is USART1_RX                -------------------------- USART5 ---------------------------            PC12 is USART1_TX            PC2  is USART1_RX                -------------------------- USART6 ---------------------------xxxxxxxxxxx PC6  is USART1_TXxxxxxxxxxxx PC7  is USART1_RX                        PG14 is USART1_TX            PG9  is USART1_RX                -------------------------- USART7 ---------------------------xxxxxxxxxxx PE8  is USART1_TXxxxxxxxxxxx PE7  is USART1_RX                        PF7  is USART1_TX            PF6  is USART1_RX                -------------------------- USART8 ---------------------------xxxxxxxxxxx PE1  is USART1_TXxxxxxxxxxxx PE0  is USART1_RX    */                                       /////// Configure USART1 Rx (PA10) as input    GPIO_InitStructure.GPIO_Pin   = GPIO_Pin_10;       GPIO_InitStructure.GPIO_Mode  = GPIO_Mode_AF;    GPIO_Init(GPIOA, &GPIO_InitStructure);  /////// Configure USART1 Tx (PA9) as alternate function    GPIO_InitStructure.GPIO_Pin   = GPIO_Pin_9;    GPIO_InitStructure.GPIO_Speed = GPIO_Speed_100MHz;    GPIO_InitStructure.GPIO_Mode  = GPIO_Mode_AF;    GPIO_Init(GPIOA, &GPIO_InitStructure);            GPIO_PinAFConfig(GPIOA,GPIO_PinSource9,GPIO_AF_USART1);    GPIO_PinAFConfig(GPIOA,GPIO_PinSource10,GPIO_AF_USART1);       // Configure UART4 Rx (PA1) as input    GPIO_InitStructure.GPIO_Pin   = GPIO_Pin_1;       GPIO_InitStructure.GPIO_Mode  = GPIO_Mode_AF;    GPIO_Init(GPIOA, &GPIO_InitStructure);      // Configure UART4 Tx (PA0) as alternate function    GPIO_InitStructure.GPIO_Pin   = GPIO_Pin_0;    GPIO_InitStructure.GPIO_Speed = GPIO_Speed_100MHz;    GPIO_InitStructure.GPIO_Mode  = GPIO_Mode_AF;    GPIO_Init(GPIOA, &GPIO_InitStructure);            GPIO_PinAFConfig(GPIOA,GPIO_PinSource0 ,GPIO_AF_UART4);    GPIO_PinAFConfig(GPIOA,GPIO_PinSource1 ,GPIO_AF_UART4);                       // Configure USART6 Rx (PG9) as input    GPIO_InitStructure.GPIO_Pin   = GPIO_Pin_9;       GPIO_InitStructure.GPIO_Mode  = GPIO_Mode_AF;    GPIO_Init(GPIOG, &GPIO_InitStructure);      // Configure USART6 Tx (PG14) as alternate function    GPIO_InitStructure.GPIO_Pin   = GPIO_Pin_14;    GPIO_InitStructure.GPIO_Speed = GPIO_Speed_100MHz;    GPIO_InitStructure.GPIO_Mode  = GPIO_Mode_AF;    GPIO_Init(GPIOG, &GPIO_InitStructure);            GPIO_PinAFConfig(GPIOG,GPIO_PinSource9 ,GPIO_AF_USART6);    GPIO_PinAFConfig(GPIOG,GPIO_PinSource14,GPIO_AF_USART6);        /* USARTx configured as follow:        - BaudRate = 9600 baud          - Word Length = 8 Bits        - One Stop Bit        - No parity        - Hardware flow control disabled (RTS and CTS signals)        - Receive and transmit enabled  */  USART_InitStruct.USART_BaudRate = 57600;  USART_InitStruct.USART_WordLength = USART_WordLength_8b;  USART_InitStruct.USART_StopBits = USART_StopBits_1;  USART_InitStruct.USART_Parity = USART_Parity_No;  USART_InitStruct.USART_HardwareFlowControl = USART_HardwareFlowControl_None;  USART_InitStruct.USART_Mode = USART_Mode_Rx | USART_Mode_Tx;  USART_Init(USART1, &USART_InitStruct);  USART_InitStruct.USART_BaudRate = 9600;  USART_InitStruct.USART_WordLength = USART_WordLength_8b;  USART_InitStruct.USART_StopBits = USART_StopBits_1;  USART_InitStruct.USART_Parity = USART_Parity_No;  USART_InitStruct.USART_HardwareFlowControl = USART_HardwareFlowControl_None;  USART_InitStruct.USART_Mode = USART_Mode_Rx | USART_Mode_Tx;  USART_Init(UART4, &USART_InitStruct);  USART_Cmd(USART1, ENABLE);  USART_Cmd(UART4, ENABLE);}

[Tesla DeLorean]

Posted on August 14, 2014 at 14:12

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