About DKari.1

DKari.1 · 2021-01-12

Hi,I have two stm32f103 uc (as the slaves) which communicate with a stm32f407 (as the master) through SPI. I realized when SPI in both slaves are enabled the voltage on MISO pin drops to 2.5 Volt while when only the SPI in one of the slaves are enabl...

DKari.1 · 2020-08-01

I am communicating with ad7730 (24bit adc) using atm32f103ZCT6. I try to read one of the registers of the adc but each time I receive a random wrong figure. The strange thing is that while debugging using serial wire (STLINK) everything is perfect an...

DKari.1 · 2020-07-30

After inspection I realized that RCC_CFGR register is different when running in different modes (debug and normal). I fixed the issue by writing RCC -> CFGR = 0x1F040A. Now the register is the same but the problem still exists.another strange fact i...

DKari.1 · 2021-01-13

Thanks Winfred.I made the configurations via CubeMX. I checked there and found that PA6 is configured as "alternate function push pull".I also checked the registry and CNF6 was set to 0x2 and mode6 was set to 0x3

DKari.1 · 2020-07-30

Thanks for your replySorry! I meant "debugging using STLink connected to target MCU with SWD link"

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Voltage drop in multiple-slave SPI communication

stm32f103 spi communication with ad7730 random wrong number

stm32f103ZCT6 communication with an ADC IC (ad7730) through SPI works fine in the debug mode but when I disconnect it from stlink and run the board normally, I receive random and wrong data.

Re: Voltage drop in multiple-slave SPI communication

Re: stm32f103ZCT6 communication with an ADC IC (ad7730) through SPI works fine in the debug mode but when I disconnect it from stlink and run the board normally, I receive random and wrong data.