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Dioswilson
Associate III
since ‎2024-12-01
‎2025-01-02

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  • 14 Posts
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I2C start condition not generating and unknown error interrupts

2024-12-29
I am trying to use stm32F446 as a master I2C device with LL library and I have 2 main issues.1. After sending a couple of messages(always 4 at most) over I2C I get no start condition when setting CR1->START, if I pause the program a couple of seconds...

ADDR10 flag is set when sending 7 bit address

2024-12-28
I am using LL library on STM32F446 for an I2C master, I am trying to comunicate with a device with 0x7B address, after sending the address I don't get the ADDR flag, insted I get ADDR10Here is my interrupt code: if (LL_I2C_IsActiveFlag_SB(I2C1)) {...

STM32F446 NACK on correct address

2024-12-25
I am trying to comunicate a stm32F103C8T6 with an STM32F446 over I2CFirst thing I try to do is send data as master from F103 and I get NACK by F446Here is logic analyzer's screenshot:And here is F446 configuration on CubeMXI don't get why is it sendi...

Questions on how RTC clock usage STM32F103

2024-12-01
I am planing to have a time functionality on a project I want to make.After reading the manual I undestood I have a 32 bit counter which increases with TR_CLK.Let's say I want to update the clock every 1ms, that would leave me with aproximately 49.5 ...
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