About alby87

alby87 · 2014-02-17

Posted on February 17, 2014 at 23:55Hi!I've a custom made board with STM32L15RB microcontroller. My I2C1 is not working well: I see the Busy flag going SET when I activate the APB1 Clock (RCC_APB1PeriphClockCmd(RCC_APB1Periph_I2C1, ENABLE);)With a l...

alby87 · 2014-02-21

Posted on February 21, 2014 at 16:56Checked: I've now 3 identical boards, and all with the same problem: there shouldn't be any problems. I've checked also the USART1, just to be sure: using the pin as an output works well, sending bytes via USART l...

alby87 · 2014-02-19

Posted on February 19, 2014 at 10:42''''I've tried using a mine implementation of the protocol, and everything is working OK. '' Does that mean you have something working?'' Yes... I can communicate and I get the expected response ''''Then I use I2C...

alby87 · 2014-02-18

Posted on February 18, 2014 at 17:21''Comparing your init code to the one I have here - you are missing : /*!< I2C Periph clock enable */ RCC_APB1PeriphClockCmd(I2Cx_CLK, ENABLE);'' I call it using: RCC_APB1PeriphClockCmd(RCC_APB1Periph_I2C1...

alby87 · 2014-02-18

Posted on February 18, 2014 at 12:59'''' but the busy is always set and the lines goes down at GPIO_Init()'' Do they go high after I2C_Init() has finished?'' They remain low after I2C_Init() has finished. ''What does ''I2C_StructInit(&I2C_InitStruct...

alby87 · 2014-02-18

Posted on February 18, 2014 at 10:59Many, many thanks. They are now both in open drain, but the busy is always set and the lines goes down at GPIO_Init(). This is a snippet from my code:RCC_ClocksTypeDef RCC_Clocks; GPIO_InitTypeDef GPIO_InitStructu...

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STM32L151RB I2C Busy flag always set

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Re: STM32L151RB I2C Busy flag always set

Re: STM32L151RB I2C Busy flag always set

Re: STM32L151RB I2C Busy flag always set

Re: STM32L151RB I2C Busy flag always set