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Posted on February 23, 2018 at 09:20Hi,I am new to this ST32 family. I have requirement to use 32 bit mirco controller in our tracker application with MQTT protocol to connect it to cloud.In our design we will include the ST32 with GPRS for TCP/IP s...
Posted on February 21, 2018 at 09:23Hi all,We use the STM32F446 for a new project. We noticed that the clock for the timers on the APB1 is x4 instead of x2 when the APB1 prescaler is not equal to 1. In our test we have used a system clock of 168MHZ ...
Posted on February 17, 2018 at 16:19I used STM32CubeMX to generate the init code of I2C3 of STM32F302C8T6 and added the test code to send some date out by I2C3. but it does not work properly, the error message = 'HAL_I2C_ERROR_TIMEOUT'. Tried to use...
Posted on February 23, 2018 at 00:55I'm new to programming with ST Micro, so I hope this is a simple question.Here is the generic pattern (correct me if I'm wrong) in an IRQ handler:void EXTI4_IRQHandler(void){ if(EXTI_GetITStatus(EXTI_Line4) !=...
Posted on February 23, 2018 at 09:49Hello,I am trying to use the MPU6050 with a STM32F108. I configured the I2C and UART using cubeMx. I also have put pull up resistors on I2C sda scl. I use Keil.As far as I understood, I have several options to rea...
Posted on February 22, 2018 at 19:19Hi, I am using STM32L073RZ and trying to use internal reference voltage to measure battery voltage(according to Datasheet page number 28). It says that VREFint can be used to monitor Vdd if external source is not ...
Posted on February 14, 2018 at 10:21Hi,We have already designed and fabricated the PCB in our project using STM32L452xx as our application processor.We have used PA9 as USART1_Tx and PB7 as USART1_Rx pins, later when we were unable to download our c...
Posted on February 21, 2018 at 18:25Hey guys.I'm working with an ultra sound piece for measuring the distance.When i set the timer1 to count every 1 ms it works(i set PSC 59999 and ARR 1000 to get 1 second with 120M cpu clock.).But when i set the PS...
Posted on February 22, 2018 at 21:34I had some trouble with SPI before and now I have same kind of trouble with I2C. I use FreeRTOS and HAL drivers, all generated by CubeMX. Function and my fix in bold:static HAL_StatusTypeDef I2C_WaitOnRXNEFlagUnti...
Posted on February 20, 2018 at 19:26 On an STM32F103RB, after switching the SPI1 from 8 bit to 16 bit the last byte received while still in 8 bit mode is received again in 16 bit mode. SPI1 is configured as a plain master as follows: RCC->...
