STM32F10x UART tx hyperterminal

[nick2]

Posted on March 24, 2015 at 14:45

Hello,

I want to sent some characters to a hyperterminal program. But my program wont work..I dont receive any characters in my hyperterminal. I am using the STM32-P107 development kit. The controller on it is the STM32F107VCI really need help here. I hope someone here see what i am doing wrong. I would really appreciate it. This is my code:/* Includes ------------------------------------------------------------------*/#include ''stm32f10x.h''#include ''stm32f10x_gpio.h''#include ''stm32f10x_rcc.h''#include ''stm32f10x_usart.h''#include <stdio.h>void USART_Print_Nick(void){  int i;//**************************************RCC Configuration*************************************\  /* Enable GPIO clock */  RCC_APB2PeriphClockCmd(RCC_APB2Periph_GPIOA | RCC_APB2Periph_AFIO | RCC_APB2Periph_GPIOC, ENABLE);  /* Enable UART clock */  RCC_APB1PeriphClockCmd(RCC_APB1Periph_USART2, ENABLE);//**************************************GPIO Configuration*************************************\  GPIO_InitTypeDef GPIO_InitStructure;  /* Configure USART Tx as alternate function push-pull */  GPIO_InitStructure.GPIO_Pin = GPIO_Pin_2;   // PA.02 USART1.TX  GPIO_InitStructure.GPIO_Mode = GPIO_Mode_AF_PP;  GPIO_InitStructure.GPIO_Speed = GPIO_Speed_50MHz;  GPIO_Init(GPIOA, &GPIO_InitStructure);  /* Configure USART Rx as input floating */  GPIO_InitStructure.GPIO_Pin = GPIO_Pin_3; // PA.03 USART1.RX  GPIO_InitStructure.GPIO_Mode = GPIO_Mode_IN_FLOATING;  GPIO_Init(GPIOA, &GPIO_InitStructure);  //LED TOGGLE.. initialized // PA.08 = output port for LED  GPIO_InitStructure.GPIO_Pin = GPIO_Pin_8;  GPIO_InitStructure.GPIO_Mode = GPIO_Mode_Out_PP;  GPIO_InitStructure.GPIO_Speed = GPIO_Speed_50MHz;  GPIO_Init(GPIOC, &GPIO_InitStructure);//**************************************USART Configuration*************************************\  USART_InitTypeDef USART_InitStructure;  USART_InitStructure.USART_BaudRate = 115200;  USART_InitStructure.USART_WordLength = USART_WordLength_8b;  USART_InitStructure.USART_StopBits = USART_StopBits_1;  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 configuration */  USART_Init(USART2, &USART_InitStructure);  /* Enable the USART2 */  USART_Cmd(USART2, ENABLE);//******************************************Program**********************************************\  while(1)    {     // 1010.1010     USART_SendData(USART2, 0xAA);     //LED toggle    GPIO_WriteBit(GPIOC, GPIO_Pin_8, 1);        for(i=0;i<0x100000;i++);    GPIO_WriteBit(GPIOC, GPIO_Pin_8, 0);        for(i=0;i<0x100000;i++);    }}

[Tesla DeLorean]

Posted on March 25, 2015 at 12:29

Can you show us the code example that worked, perhaps that will shed some light on why this doesn't work.

[Tesla DeLorean]

Posted on March 25, 2015 at 12:35

Could it be that the board uses PD5/PD6 for USART2? That you need to use Bank D, and remap the USART2 there?

Last post,

https://my.st.com/public/STe2ecommunities/mcu/Lists/cortex_mx_stm32/Flat.aspx?RootFolder=https%3a//my.st.com/public/STe2ecommunities/mcu/Lists/cortex_mx_stm32/STM32F107%20SEND%20RECEIVE%20USART&FolderCTID=0x01200200770978C69A1141439FE559EB459D7580009C4E14902C3CDE46A77F0FFD06506F5B&currentviews=2618

[nick2]

Posted on March 25, 2015 at 13:11

THanks for answer again!

No its connected to PA2 (tx) PA3 (rx), i checked again.I will show you but the software is really diffurrent and has other header / c files.I hope you can do something with this information. I still can't get it workThis is software with libraries from coocox. I think you can't do much with this.. I hope to hear it soon from you again //*****************************************************************************////! \file UartPrintf.c//! \brief Using UART0 to print some data to terminal.//! \version 1.0//! \date 6/29/2012//! \author CooCox//! \copy//!//! Copyright (c) 2009-2011 CooCox.  All rights reserved.////*****************************************************************************#include ''xhw_types.h''#include ''xhw_ints.h''#include ''xhw_nvic.h''#include ''xhw_memmap.h''#include ''xdebug.h''#include ''xcore.h''#include ''xsysctl.h''#include ''xgpio.h''#include ''xuart.h''#include ''xhw_types.h''#include ''xhw_memmap.h''#include ''xhw_ints.h''#include ''xhw_nvic.h''#include ''xcore.h''#include ''xsysctl.h''#include ''xgpio.h''//*****************************************************************************////! \brief print some data to terminal.//!//! \param None//!//! \return None.////*****************************************************************************void UartPrintf(void){    unsigned long i;    int y = 0xAA;    int t;    int d = 0x55;        //    //Set System Clock    //    xSysCtlClockSet(72000000, xSYSCTL_OSC_MAIN | xSYSCTL_XTAL_25MHZ);    xSysCtlDelay(10000);    xSysCtlPeripheralEnable(xSYSCTL_PERIPH_GPIOA);       xSysCtlPeripheralEnable(xSYSCTL_PERIPH_GPIOD);    xSysCtlPeripheralEnable(SYSCTL_PERIPH_AFIO);    xSPinTypeUART(UART2TX,PD5);        xSysCtlPeripheralReset(xSYSCTL_PERIPH_UART2);    xSysCtlPeripheralEnable(xSYSCTL_PERIPH_UART2);    xUARTConfigSet(USART2_BASE, 115200, (UART_CONFIG_WLEN_8 |                                         UART_CONFIG_STOP_ONE |                                          UART_CONFIG_PAR_NONE));    xUARTEnable(USART2_BASE, (UART_BLOCK_UART | UART_BLOCK_TX | UART_BLOCK_RX));    //    // Set GPIO port C pin 6 , 7 output mode.    //    xGPIODirModeSet( xGPIO_PORTC_BASE, xGPIO_PIN_6, xGPIO_DIR_MODE_OUT );    xGPIODirModeSet( xGPIO_PORTC_BASE, xGPIO_PIN_7, xGPIO_DIR_MODE_OUT );    //    // Initionalize system clock.   //    xSysCtlPeripheralEnable( xSYSCTL_PERIPH_GPIOC );    while (1)    {             // Output low level.             xGPIOPinWrite( xGPIO_PORTC_BASE, xGPIO_PIN_6 | xGPIO_PIN_7, 0 );             xUARTCharPut(USART2_BASE, y);             for(i = 0; i < 1000000; i++);             // Output high level.             xGPIOPinWrite( xGPIO_PORTC_BASE, xGPIO_PIN_6 | xGPIO_PIN_7, 1 );             xUARTCharPut(USART2_BASE, d);             for(i = 0; i < 1000000; i++);    }}

[Tesla DeLorean]

Posted on March 25, 2015 at 13:18

No its connected to PA2 (tx) PA3 (rx), i checked again.

Which version of the board? The most recent schematic definitely shows it using PD5/PD6 And in the code that works xSPinTypeUART(UART2TX,PD5); Try the code from the example I presented in the other thread.

[Tesla DeLorean]

Posted on March 25, 2015 at 13:20

https://www.olimex.com/Products/ARM/ST/STM32-P107/resources/STM32-P107_board_revision_C.pdf

[nick2]

Posted on March 25, 2015 at 13:54

Thanks a lot man!!

I had a old revision..I did remap the usart and it works! thanks a lot..!! Now i am gonna try receive etc!Thanks. Have a nice day man!!