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What I am trying to do:Send and receive data via USART on my STM32H7B3I-DK. I am connecting a serial USB to the STMod+ CN10 RX and TX and have 2 serial consoles on for monitoring the data that is transmitted on both ends (the serial USB and the disco...
Is there any example for using CAN1 and CAN2 in a dual CAN MCU like the STM32F777, especially how to configure the filter bank using the ST HAL (cube) ??As I understand the filter bank is shared. Are the FIFO0 and FIFO1 also shared?Why is there a CAN...
If there are more than three interrupts triggered simultaneously in the interrupt service routine/callback, how many nested interrupt the board can handle simultaneously. Or there are some cases of memory stack overflow which can lead to the dumping/...
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...
