Resolved! Missing info in reference manual
In the STM32L562 reference manual (RM0438), v7.0, the section 11.6.13 "GPIO register map" is missing the registers MODER and PUPDR (which are documented in the preceding sections).
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EXTI direct input on STM32H7 can be used for level sensitive interrupts?
Dear experts,I'm looking how to achieve level sensitive interrupts with EXTI.Already found several questions here with discouraging answers.However, in H7 RM the EXTI chapter mentions some "direct event input" (RM0433 19.3.3)It looks (though I coul...
I2C sensor on USART 2 Serial communication
Hello, I am using the embedded coder support package in simulink to interface with my onboard MEMS acceleration sensor (LSM303AGR) on my STM32F411VET discovery board. I could successfully connect and run simple LED program through USART2 on simulink ...
Resolved! GPIO read/write not working on custom STM32H735 board
Hello,I'm using a custom board based on a STM32H735 with various GPIO inputs and outputs. The STM32 is packaged as a 0.5mil pitch BGA and the board assembly has been outsourced.I'm able to flash a program on the MCU and debug it by adding breakpoints...
Bitwise shift left STM32F723
Hi there i m a student working on STM32F723 the first time, I encountered an register setting example as follows: GPIOC->MODER |= ((2<<(6*2)) \ (2<<(7*2))); i konw its setting the GPIO register but whats the meaning of * and 2<< at the beginning sen...
How to detect what level digital input caused interupt
Hi I have pin PA6 setup to interupt on high and low levels. I have done the following:GPIOA->MODER &= ~GPIO_MODER_MODE6; //PA6 as inputSYSCFG->EXTICR[1] &= ~SYSCFG_EXTICR2_EXTI6; //PA6EXTI->RTSR1 |= EXTI_RTSR1_RT6; //enable rising edgeEXTI->FTSR1 |=...
How to index different GPIO ports in one array
hi everyone.I'm trying to index different GPIO ports and pins. #define STEP1_HALF1_PORT GPIOA#define STEP2_HALF1_PORT GPIOB#define STEP3_HALF1_PORT GPIOA#define STEP4_HALF1_PORT GPIOC#define STEP5_HALF1_PORT GPIOBGPIO_TypeDef *Half1StepPortNum[5] = ...
Integrating XPT2046 With STM32H750
I have used an XTP2046 Library with the STM32H750 Board (Bare metal HAL Without RTOS) Is working and and producing Correct results.But When i use a sample TOUCHGFX Project and only read the XPT2046 Value then I get into following problemsDebugger sho...
Resolved! L432 GPIO registers unexpected reset value and GPIOs not functioning
Hi all,I am trying to toggle a IO pin but the pin just will not turn on.I checked register values at startup before main(), and some of the values are the the same as the reset values shown in the reference manual:Every register has been set to the r...
Is it possible to control HSYNC,VSYNC with different Peripherals other than EXTI?
Hi,I was able to get a frame(result attached below) from Nucleo-WB55RG by controlling HSYNC and VSYNC with the help of EXTI. However, I have faced some pixel loss(pixels from the white color) at the beginning of each HSYNC. I suspected that the issue...