About juho

juho · 2016-03-08

Posted on March 08, 2016 at 12:55 Hello, I'm having problems with STM32L100RC I2C1 peripheral on PB6 and PB7. The lines are pulled to MCU Vcc with 1k resistors. The problem is that when I configure the PB6 and PB7 as I2C1 pins, the MCU pu...

juho · 2015-11-17

Posted on November 17, 2015 at 15:09Hello,It seems that the IRQ handler for the wakeup does not trigger even the RTC is running correctly, WUTIE is set in CR register and the ISR flag WUTF is set as expected. What could be the issue? The FW is build...

juho · 2016-04-11

Posted on April 11, 2016 at 12:55An update: Since I could not get the I2C peripheral to work, I implemented a bit-bang I2C and it works, so the electronics are OK. Very strange indeed.

juho · 2016-04-04

Posted on April 04, 2016 at 12:31Hello,Unfortunately the code will be used on a target that has fixed HW, so changing pins is not possible.I moved the AF functions to the beginning of the initialisation function, but no change in behaviour.-Juho L

juho · 2015-11-18

Posted on November 18, 2015 at 10:05Problem solved! The code was missing configuration for NVIC vector. Now it works.

juho · 2015-11-18

Posted on November 18, 2015 at 09:32I made a test FW where I start a five second WUT and then print out the current register states to the serial. Here is short log:DBG:Start WUT...DBG:Time Count RTC-CR RTC-ISR IMR SWIER EXTIPR IRQD...

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STM32L100RC I2C1 SDA pulled constantly low

RTC Wakeup interrupt not triggering on STM32L100

Re: STM32L100RC I2C1 SDA pulled constantly low

Re: STM32L100RC I2C1 SDA pulled constantly low

Re: RTC Wakeup interrupt not triggering on STM32L100

Re: RTC Wakeup interrupt not triggering on STM32L100