2015-11-24 03:34 AM
Hello,
I'm programming a timer in stm32f103rb but when I load the code the IAR show me an error. This code goes well in another microcontroller stm32f103RD. I show the code:/* Public variables ----------------------------------------------------------*/GPIO_InitTypeDef GPIO_InitStruct;NVIC_InitTypeDef NVIC_InitStruct;TIM_TimeBaseInitTypeDef TIM_TimeBaseInitStructure;USART_InitTypeDef USART_InitStructure;uint8_t TXON_INTERRUPCION[14] = ''\nINTERRUPCIÓN''; /* Public functions ----------------------------------------------------------*/void RCC_Config(){ RCC_APB2PeriphClockCmd(RCC_APB2Periph_GPIOA, ENABLE); // Enable GPIOA clock RCC_APB2PeriphClockCmd(RCC_APB2Periph_TIM1, ENABLE); // Enable TIM1 clock RCC_APB2PeriphClockCmd(RCC_APB2Periph_USART1, ENABLE); // Enable USART1 clock }void GPIO_Config(){ /* Configuración GPIO para poner pin a nivel alto y bajo*/ GPIO_InitStruct.GPIO_Pin = GPIO_Pin_11; // We are going to use PA11 GPIO_InitStruct.GPIO_Mode = GPIO_Mode_Out_PP; // Alternate function Push-Pull mode GPIO_InitStruct.GPIO_Speed = GPIO_Speed_50MHz; // Set GPIO speed GPIO_Init(GPIOA, &GPIO_InitStruct); // GPIOA11 ready /* Configure Transmissor */ GPIO_InitStruct.GPIO_Pin = GPIO_Pin_9; // We are going to use PA9 GPIO_InitStruct.GPIO_Mode = GPIO_Mode_AF_PP; // Alternate function Push-Pull mode GPIO_InitStruct.GPIO_Speed = GPIO_Speed_50MHz; // Set GPIO speed GPIO_Init(GPIOA, &GPIO_InitStruct); // GPIOA9 ready}void USART_Config(){ USART_InitStructure.USART_BaudRate = 9600; 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_Init(USART1, &USART_InitStructure); USART_Cmd(USART1, ENABLE);} void txon(uint8_t TAM[], uint8_t size){ uint8_t i=0; // Index for a loop for (i=0;i<size;i++) // Sending TAM[] by USART { while (!USART_GetFlagStatus(USART1, USART_FLAG_TXE)); USART_SendData(USART1, TAM[i]); } while(!USART_GetFlagStatus(USART1, USART_FLAG_TC)); // Waiting for complete transmission}void NVIC_Config(){ NVIC_SetPriorityGrouping(NVIC_PriorityGroup_0); /* Configure TIM1 IRQ*/ NVIC_InitStruct.NVIC_IRQChannel = TIM1_UP_IRQn; NVIC_InitStruct.NVIC_IRQChannelPreemptionPriority = 1; NVIC_InitStruct.NVIC_IRQChannelSubPriority = 1; NVIC_InitStruct.NVIC_IRQChannelCmd = ENABLE; NVIC_Init(&NVIC_InitStruct);}void TIM_Config(){ TIM_TimeBaseInitStructure.TIM_Period = 51445 - 1; // Configures the period value to be loaded into the active Auto-Reload Register at the next update event 60000 - 1 (0xEA5F) TIM_TimeBaseInitStructure.TIM_Prescaler = 36000 - 1; // Configure the prescaler value used to divide the TIM clock [0x0000 - 0xFFFF] 36000 - 1 (0x8C9F) TIM_TimeBaseInitStructure.TIM_ClockDivision = TIM_CKD_DIV1; // Configures the clock division TIM_TimeBaseInitStructure.TIM_CounterMode = TIM_CounterMode_Up; // TIM Upcounting mode TIM_TimeBaseInitStructure.TIM_RepetitionCounter = 6; // TIM counter repetition TIM_TimeBaseInit(TIM1, &TIM_TimeBaseInitStructure);}void TIM1_UP_IRQHandler(void){ if (TIM_GetITStatus(TIM1, TIM_IT_Update) != RESET) { /*Clear the Update pending bit*/ TIM_ClearITPendingBit(TIM1, TIM_IT_Update); /*Comprobación del tiempo que tarda en generar la interrupción*/ GPIO_SetBits(GPIOA, GPIO_Pin_11); GPIO_ResetBits(GPIOA, GPIO_Pin_11); txon(TXON_INTERRUPCION,15); }}/** * @brief Main program * @param None * @retval None */void main(void){ RCC_Config(); GPIO_Config(); // Setup GPIO USART_Config(); TIM_Config(); NVIC_Config(); /*Enable the TIM Update Interrupt*/ TIM_ITConfig(TIM1, TIM_IT_Update, ENABLE); /*TIM counter enable*/ TIM_Cmd(TIM1, ENABLE); NVIC_EnableIRQ(TIM1_UP_IRQn); while(1);}2015-11-24 03:44 AM
but when I load the code the IAR show me an error
Error says what?2015-11-25 12:18 AM
Now I don't have any error, the only problem is that the timer doesn't work. The first time the function work but then doesn't work again.
2015-11-25 01:37 AM
The code is correct and works well. I think the problem is in the PCB design. Sorry!!
Thank you.