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AHB and APB

Hi ST Community,I’d like to know why sometimes we use GPIO with AHB and sometimes with APB ?

idrissmc by • Associate III
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AT command for sending sms ?

Dear Members, I want to send SMS but I stack with ^z,how can I rectify it ?uint8_t aTxBuffer5[] ="AT+CREG?\r"; uint8_t aTxBuffer6[] ="AT+CGMF=1\r"; uint8_t aTxBuffer7[] ="AT+CMGS=\"61400000997\"\r"; uint8_t aTxBuffer8[] ="\"TEST SMS FROM STM32 ...

Resolved! stm32H743Y vs stm32H743V

Dear all,I am facing to a stm32h743 issue. I have a Nucleo with the stm32H743 Rev Y that work perfectly. Now, I just tried the new Nucleo equipped with the stm32H743 Rev V. As expected, my previous code (Rev Y) does not work on the new device (Rev V)...

I2C errors and interrupts

Hi there, I'm using the STM32H7 to talk to a CS2000 clock chip over I2C. I'm using interrupt mode.I'm just trying to read the chip's ID register for starters. Despite the CS2000 ACKing the first 'setup write' byte, it won't write the second byte (wit...

Mttjcksn by • Associate III
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  • 2 replies
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Hi everyone, I am fairly new to ST and I'm working on a project where i need 8 phase shifted pwm signals(each phase shifted by 45 degrees and same duty cycle)

i was thinking if there is a way i could generate 4 timers phase shifted by 90 degrees wrt each other so that i could use them to generate 2 pwm signals (on each timer using asymmetric mode) . can this be done? if not, is there any other way i could ...

Vbhus by • Associate
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i2c communication on STM32F103RB

i want to read ADC MCP3425 digital data using i2c communication with Stm32f103rb nucleo-64 board . For programming of nucleo-64 i used arduino ide. 1] Is it possible to modify default setting of MCU clock ? 2]what is the default setting of i2c clock ...

vmool by • Associate
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My STM32F051C6 dev board cuts the connection to Eclipse after starting to debug, i cannot get it to stay connected. This happens with all projects regardless if they worked before. Can anyone please help??

Im debugging with an ST-LINK J9357 debugger chip in Eclipse's debug workbench . I've been over the debug configurations many times and cannot find an error. Once i start the debug and it shuts off the connection there isn't even an error box detailin...

DC.18 by • Associate
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  • 1 replies
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Interfacing STM32F401 with OV7670 camera: scrambled images

Hello everyone,I am trying to interface my STM32F401RE with OV7670 camera. I have set the input clock for the camera from the MCO output of the board at 8MHz. Because my board is not provided with DCMI, I have to explicitly implement the communicatio...

MCarp by • Associate
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