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Forum Posts

Slowing down Timer bus frequency

Posted on March 31, 2017 at 08:57Hi,I need to use a timer period between 2 us and 500 s, so using the timers inside an STM32F7 I calculated that slowing down the bus of the timer to 8MHz I can cover all the range with differents values for the presc...

stm32F100 I2C1 and SPI3

Posted on March 31, 2017 at 03:42mcu: stm32f100vctI am using spi3 and i2c1 together.However, when i2c1 is used, no signal is output from mosi of spi3.If i2c1 is deleted, spi3 will operate normally.If i2c1 and spi1 (remap) are used, I2c SMBA does not...

Resolved! STM32F437 timer sizes

Posted on March 30, 2017 at 18:47I see varying information about whether the timers in my STM32F437 are 16 bit or 32. Maybe I missed a table in RM0090 or the data sheet. Could someone please point me to a place where this info might be consolidated?...

John Hite by Associate III
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18.4.17 TIMx DMA control register (TIMx_DCR)

Posted on March 24, 2017 at 19:02in RM0090 18.4.17 TIMx DMA control register (TIMx_DCR) it states:Bits 4:0 DBA[4:0]: DMA base addressThis 5-bit vector defines the base-address for DMA transfers (when read/write access aredone through the TIMx_DMAR a...

John Hite by Associate III
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STM32F407 CAN Bus Transmit error

Posted on March 17, 2017 at 03:07Hello, I m a new guy in ST MCUI use CubeMX as start point and create a project for CAN1 and CAN2 Communication, and test a simple code belowresult is 'HAL_CAN_Transmit(&hcan1, 50); ' always return Time out error;can ...