Posted on November 11, 2012 at 23:46Reading UM0033, page 138, figure 14. Sorry, can not exactly understand it. For example, I want to connect C.8 to CAN1_TX and C.9 to CAN1_RX. I see AF9 (CAN1/CAN2, TIM12..14). and need to use GPIOC_AFRH(LSB) GPIO...
Posted on November 07, 2012 at 09:17Hello All, I am using STM32F2 series. I want to set PORT E pin 1, And here goes my code GPIO_InitTypeDef *GPIO_InitStruct; RCC_AHB1PeriphClockCmd(RCC_AHB1Periph_GPIOE, ENABLE); GPIO_InitStruct->GPIO_Pin = GPIO_P...
Posted on June 21, 2012 at 00:14 Following the example for the STM3240G I set up the KEY pushbutton (PG15) as an external interrupt: RCC_AHB1PeriphClockCmd(RCC_AHB1Periph_GPIOG, ENABLE); // enable port RCC_APB2PeriphClockCmd(RCC_APB2Peri...
Posted on October 08, 2012 at 23:13The STM32 CMSIS examples I've seen show the remap function (e.g., GPIO_PinRemapConfig(...)) being called before the GPIO_Init() function. Must the MAPR and MAPR2 remap register fields be assigned prior to assigning...
Posted on September 27, 2012 at 10:41Hi Folks, I like to disable PWM, on an external event - i want to use BKIN. i set the break mechanism up like this ------...... GPIO_PinAFConfig(GPIOB, GPIO_PinSource12, GPIO_AF_TIM1); /* Automatic Output ...
Posted on September 27, 2012 at 16:20Hello All, I am using STM32F207VC for my college project. I have my external probe temperature sensor connected to one of the internal channel of ADC. All i want to do is generate an EXTI0 interrupt when external...
Posted on September 21, 2012 at 18:08The ST32F4xx user manual, RM0090, on page 205, for the EXTI_PR (pending register) bits says: > This bit is cleared by writing a 1 to the bit > or by changing the sensitivity of the edge detector. The latter one ...
Posted on September 17, 2012 at 08:55I have stm32F4discovery board. DCMI_D5 is on PB6 and DCMI_D7 is on PB9. and I want to use SDA and SCL on PB6 and PB9. can I map DCMI_D5 and D7 to any other PIN? Or Can I map any peripheral to any PIN if not, th...
Posted on October 26, 2011 at 20:27In the STM32 reference manual (Doc ID 13902 Rev 13) in section 9.1.4 it states:It is also possible to emulate the AFI input pin by software by programming the GPIO controller. In this case, the port should be confi...
Posted on August 30, 2012 at 13:02 Hello, sorry for my bad English. I'm developing an application for a STM32F103ZE that reads the value from three sensor via I2C bus, use the SysTick timer, use USART1 to communicate with the pc, generates four ...