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I am trying to connect an SPI communication device and a UART communication device to my STM32H7B3I-DK using the STMod+. From the datasheet for the discovery board, SPI and UART use the same lines (pin numbers 3 and 4) to connect the connections on t...
When using DMA to realize a SAI transmit (double buffer, rearmed in HAL_SAI_TxCpltCallback), I found some very strange behavior.In some configurations, a FIFO error interrupt (FEIF, ref. manual p. 235) happens after a few seconds. The time until this...
I'm using an STM32H725 and am trying to read a block of SPI data (say, 100 samples) from an external SPI ADC on a fixed sampling schedule. That is, I do NOT want to read all 100 samples as fast as possible; I want to read 1 sample every microsecond.I...
General objective: Generate 2 PWM's on Timer 3 and Timer 4 respectively at 50% duty cycle, both with period of 2 seconds and phase shift of 1second between them (Timer4 will start 1 sec later).Because I want it to be precise, I am not considering usi...
Have two STM32 eval systems, Discovery [running as I2C master] and touchscreen [running as I2C slave]. I2C communications were successful when master was built with HAL and slave was built with LL. After converting slave to HAL, I observe that messag...
Hello.At the next double type calculation,double a = 0.7; char b = 12; double c; c = a * b;c is saved to 8.39999 in the register But 0.7*12 is 8.4How can I save 8.4 to the 'c' register?Thanks.
I have used this same chip on a previous project and managed to toggle an LED on and off using HAL_Delay(1000); function. I copied the same code across to my new project board, uploaded it successfully, toggled the LED on successfully but when I step...
Hello,I'm using an stm32f411ce with an lsm6ds3 IMU and I want to trigger a read from the IMU with an EXTI. I've set it all in the code below and activated the interrupt on the IMU. the interrupt is set in PR register but handler is never called.Thank...
We have been using an STM32L476 in a product that schedules periodic wake times. Recently we have discovered a bug where the unit will go to sleep and never wake back up. What we have noticed is after generating another interrupt to wake the unit up ...
Do you have any ideas what's going on with STM32L431RCT. After ESD Testing ADC of STM32L431RCT reads back 0 Values at all Input Channels. A manually disable and enabling cycle in debugging mode helps. ADC is reading values then correct again.We also ...
