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Heyho,using L073 at 32MHz, so even I2C transfers "seem" fast, at least in "fast mode plus" at SCL 1 MHz. And I don't want to over-use clock stretching.I'm looking for a way to use I2C slave receive with DMA, but an unknown transfer length.Right now i...
One of my friends noticed, that ST NRND'd not only the STM8, but also the whole STM32L1xx family.However, in contrast to STM8, the 'L1 are under the 10-year commitment program, so they should continue to be available in the next 9 years. JW
Hi,I've have to port an existing huge application from F4 to a H753 board. The F4 has PNOR the H7 dual QSPI flash.One task parses XML configuration data from PNOR flash. A second task stores data e.g. log data in same PNOR.Parsing configuration data ...
I've built at least a dozen boards using the same communication interface -- a custom debug monitor for communication through stlink -- all on stm32l42x processors. The debug monitor looks roughly like the following code. Although the macros are for ...
Hi!I have a STM32103 processor and I wonder if something bad can occurs if I use an external oscillator to OSC_IN and leave the OSC,_OUT floating. With a ceramic crystal HSE configuration in CubeMX.I know that the BYPASS clock source is the best HSE ...
Hello everyone, I am working on a design using STM32F401RE and need to interface a barcode scanner that works over a standard 5 V USB interface. The barcode scanner behaves like a typical USB device (likely HID/CDC) and expects: USB host on the other...
I am trying to capture timestamp values using STM32G474RE. Requirement I need to route: COMP1 output -> Timer input capture COMP2 output -> Timer input capture On each comparator edge, the timer should capture the current counter value and transfe...
Hello,I am working with an STM32F407VGT on the Discovery board using bxCAN.I can communicate successfully at 125 kbps, but when I switch to 250 kbps or 500 kbps, communication completely fails:No messages are transmitted or receivedPCAN shows Bus Hea...
Hi,I took reference for calulating the timing / cycles for my MT29F1280AJAAA (I'm using STM32H745ZIT3) In Asynchronous mode - 5, which is saying ~50Mhz in the datasheet. But I'm running FMC at 131MHz clcok, what ever the calculation I have calculate...
I am generating a PWM signal using timer1 register and use it in Center aligned mode. I want to to know if i can modify the timer counter register TIMx_CNT register with some "x" value in the timer interrupt instead of resetting it to 0.
