From afbb4cc73c44b6321cae39dbe46b97155805097d Mon Sep 17 00:00:00 2001 From: Trygve Laugstøl Date: Sun, 13 Dec 2015 21:03:11 +0100 Subject: wip --- .../CEC/DataExchangeInterrupt/main.c | 239 +++++++++++++++++++++ 1 file changed, 239 insertions(+) create mode 100644 tmp/STM32F10x_StdPeriph_Lib_V3.5.0/Project/STM32F10x_StdPeriph_Examples/CEC/DataExchangeInterrupt/main.c (limited to 'tmp/STM32F10x_StdPeriph_Lib_V3.5.0/Project/STM32F10x_StdPeriph_Examples/CEC/DataExchangeInterrupt/main.c') diff --git a/tmp/STM32F10x_StdPeriph_Lib_V3.5.0/Project/STM32F10x_StdPeriph_Examples/CEC/DataExchangeInterrupt/main.c b/tmp/STM32F10x_StdPeriph_Lib_V3.5.0/Project/STM32F10x_StdPeriph_Examples/CEC/DataExchangeInterrupt/main.c new file mode 100644 index 0000000..bc2b6ee --- /dev/null +++ b/tmp/STM32F10x_StdPeriph_Lib_V3.5.0/Project/STM32F10x_StdPeriph_Examples/CEC/DataExchangeInterrupt/main.c @@ -0,0 +1,239 @@ +/** + ****************************************************************************** + * @file CEC/DataExchangeInterrupt/main.c + * @author MCD Application Team + * @version V3.5.0 + * @date 08-April-2011 + * @brief Main program body + ****************************************************************************** + * @attention + * + * THE PRESENT FIRMWARE WHICH IS FOR GUIDANCE ONLY AIMS AT PROVIDING CUSTOMERS + * WITH CODING INFORMATION REGARDING THEIR PRODUCTS IN ORDER FOR THEM TO SAVE + * TIME. AS A RESULT, STMICROELECTRONICS SHALL NOT BE HELD LIABLE FOR ANY + * DIRECT, INDIRECT OR CONSEQUENTIAL DAMAGES WITH RESPECT TO ANY CLAIMS ARISING + * FROM THE CONTENT OF SUCH FIRMWARE AND/OR THE USE MADE BY CUSTOMERS OF THE + * CODING INFORMATION CONTAINED HEREIN IN CONNECTION WITH THEIR PRODUCTS. + * + *

© COPYRIGHT 2011 STMicroelectronics

+ ****************************************************************************** + */ + +/* Includes ------------------------------------------------------------------*/ +#include "stm32f10x.h" +#include "stm32_eval.h" + +/** @addtogroup STM32F10x_StdPeriph_Examples + * @{ + */ + +/** @addtogroup CEC_DataExchangeInterrupt + * @{ + */ + + +/* Private typedef -----------------------------------------------------------*/ +typedef enum {FAILED = 0, PASSED = !FAILED} TestStatus; + +/* Private define ------------------------------------------------------------*/ +/* Private macro -------------------------------------------------------------*/ +/* Private variables ---------------------------------------------------------*/ +CEC_InitTypeDef CEC_InitStructure; + +uint8_t ByteNumber = 10; +volatile TestStatus TransferStatus = FAILED; +extern uint8_t TransmitBuffer[10]; +extern uint8_t ReceiveBuffer[10]; +extern __IO uint8_t ReceivedFrame; + +/* Private function prototypes -----------------------------------------------*/ +void RCC_Configuration(void); +void NVIC_Configuration(void); +void GPIO_Configuration(void); +TestStatus Buffercmp(uint8_t* pBuffer1, uint8_t* pBuffer2, uint16_t BufferLength); + +/* Private functions ---------------------------------------------------------*/ + +/** + * @brief Main program + * @param None + * @retval None + */ +int main(void) +{ + /*!< At this stage the microcontroller clock setting is already configured, + this is done through SystemInit() function which is called from startup + file (startup_stm32f10x_xx.s) before to branch to application main. + To reconfigure the default setting of SystemInit() function, refer to + system_stm32f10x.c file + */ + + /* RCC configuration */ + RCC_Configuration(); + + /* NVIC configuration */ + NVIC_Configuration(); + + /* GPIO configuration */ + GPIO_Configuration(); + + /* Configure the CEC peripheral */ + CEC_InitStructure.CEC_BitTimingMode = CEC_BitTimingStdMode; + CEC_InitStructure.CEC_BitPeriodMode = CEC_BitPeriodStdMode; + CEC_Init(&CEC_InitStructure); + + /* Set Prescaler value for APB1 clock PCLK1 = 24MHz */ + CEC_SetPrescaler(0x4AF); + + /* Set the CEC initiator address */ + CEC_OwnAddressConfig(MY_DEVICE_ADDRESS); + + /* Activate CEC interrupts associated to the set of RBTF,RERR, TBTF, TERR flags */ + CEC_ITConfig(ENABLE); + + /* Enable CEC */ + CEC_Cmd(ENABLE); + + /* If a frame has been received */ + while(ReceivedFrame == 0) + { + } + + /* Check the received data with the send ones */ + TransferStatus = Buffercmp(TransmitBuffer, ReceiveBuffer, ByteNumber); + /* TransferStatus = PASSED, if the data transmitted from CEC Device1 and + received by CEC Device2 are the same */ + /* TransferStatus = FAILED, if the data transmitted from CEC Device1 and + received by CEC Device2 are different */ + + if (TransferStatus == PASSED) + { + /* OK */ + /* Turn on LED1 */ + STM_EVAL_LEDOn(LED1); + } + else + { + /* KO */ + /* Turn on LED2 */ + STM_EVAL_LEDOn(LED2); + } + while(1) + { + } +} + +/** + * @brief Configures the different system clocks. + * @param None + * @retval None + */ +void RCC_Configuration(void) +{ + /* Enable CEC clock */ + RCC_APB1PeriphClockCmd(RCC_APB1Periph_CEC, ENABLE); + + /* Initialize LEDs and Key Button available on STM32F100B-EVAL board ***/ + /* Configure LED1, LED2, LED3 and LED4 */ + STM_EVAL_LEDInit(LED1); + STM_EVAL_LEDInit(LED2); + STM_EVAL_LEDInit(LED3); + STM_EVAL_LEDInit(LED4); + + /* Configure the Key Push button and its associated EXTI Line */ + STM_EVAL_PBInit(Button_KEY, Mode_EXTI); +} + +/** + * @brief Configures the different NVIC interrupts. + * @param None + * @retval None + */ +void NVIC_Configuration(void) +{ + NVIC_InitTypeDef NVIC_InitStructure; + + /* Configure two bits for preemption priority */ + NVIC_PriorityGroupConfig(NVIC_PriorityGroup_2); + + /* Enable the CEC global Interrupt (with higher priority) */ + NVIC_InitStructure.NVIC_IRQChannel = CEC_IRQn; + NVIC_InitStructure.NVIC_IRQChannelPreemptionPriority = 0; + NVIC_InitStructure.NVIC_IRQChannelSubPriority = 0; + NVIC_InitStructure.NVIC_IRQChannelCmd = ENABLE; + NVIC_Init(&NVIC_InitStructure); +} + +/** + * @brief Configures the different GPIO ports. + * @param None + * @retval None + */ +void GPIO_Configuration(void) +{ + GPIO_InitTypeDef GPIO_InitStructure; + + /* Enable GPIOB clocks */ + RCC_APB2PeriphClockCmd(RCC_APB2Periph_GPIOB, ENABLE); + + /* Configure GPIOB Pin 8 (CEC line) as Output open drain */ + GPIO_InitStructure.GPIO_Pin = GPIO_Pin_8; + GPIO_InitStructure.GPIO_Speed = GPIO_Speed_50MHz; + GPIO_InitStructure.GPIO_Mode = GPIO_Mode_AF_OD; + GPIO_Init(GPIOB, &GPIO_InitStructure); +} + +/** + * @brief Compares two buffers. + * @param pBuffer1, pBuffer2: buffers to be compared. + * @param BufferLength: buffer's length + * @retval PASSED: pBuffer1 identical to pBuffer2 + * FAILED: pBuffer1 differs from pBuffer2 + */ +TestStatus Buffercmp(uint8_t* pBuffer1, uint8_t* pBuffer2, uint16_t BufferLength) +{ + while(BufferLength--) + { + if(*pBuffer1 != *pBuffer2) + { + return FAILED; + } + + pBuffer1++; + pBuffer2++; + } + + return PASSED; +} + +#ifdef USE_FULL_ASSERT + +/** + * @brief Reports the name of the source file and the source line number + * where the assert_param error has occurred. + * @param file: pointer to the source file name + * @param line: assert_param error line source number + * @retval None + */ +void assert_failed(uint8_t* file, uint32_t line) +{ + /* User can add his own implementation to report the file name and line number, + ex: printf("Wrong parameters value: file %s on line %d\r\n", file, line) */ + + /* Infinite loop */ + while (1) + { + } +} + +#endif + +/** + * @} + */ + +/** + * @} + */ + +/******************* (C) COPYRIGHT 2011 STMicroelectronics *****END OF FILE****/ -- cgit v1.2.3