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CPU 210MHzIf you run IRQ code from flash you have about 5 times more cpu cycles as needed (7WS)if you switch on ART accelerater and prefetch: for loop gets slower no influence on IRQ latencyyou could not run code from internal SRAM because of missin...
Hi folks, I have tried to run my complete program out of internal SRAM to speed up the IRQsbut if I come to svc 0 it failsprvPortStartFirstTask: 20005ee0: ldr r0, [pc, #32] ; (0x20005f04) 20005ee2: ldr r0, [r0, #0] 20005ee4: ldr r...
We are using STM32F765IIK6 176 pin 10x10 0.6mm UFBGA, die rev "Z". Whilst processing these through SMT solder reflow (using an 8 zone forced air convection oven) we had a number of these devices failing, due to the substrate of the BGA package dishin...
Hi,Does anyone know if there are any companies out there that sell production ready stm32 hardware boards. I appreciated there would be a lot of variations regarding io etc.. but i just wondered if it was a "thing" or if the only board are typically ...
I'm trying to enter STOP2 mode to save energy but the MCU get stuck in the function HAL_PWREx_EnterSTOP2Mode(PWR_STOPENTRY_WFI). I have cleared all EXTI pending flags and RTC flags, and disable all five wake up pins. The MCU is supposed to wake up vi...
I use STM32F102 and TIM2 timer in PWM1 mode to generate defined frequency and duty cyclesquare wave. I have some questions and I hope can get some help from experienced colleagues.1. I update the ARR/CCR1 register in an interrput which is defined by ...
I have done some investigation and arrived that the problem is with the "DIR" bit in the Interrupt Status register not firing to indicate whether to do a Read.uint32_t isr_trace[64]; int isr_count = 0; void I2C2_EV_IRQHandler(void) { isr_trace[...
Even though most of you may be relatively familiar with the various types of mechanical controls, the same does not necessarily apply for capacitive ones. So, let’s start off by defining the most basic elements of capacitive sensing.Capacitive button...
Hello!We have choosen the STM32F407/427 for our product, a couple of years ago.It fits with the speed, and also with the possibility to use DMA for mutliple peripherals.Now, as we have found out the hard way, the DMA2 fails while handling ADCs and SD...
