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External interrupt errata?I have setup EXTI_Line12 and EXTI_Line14 to generate en interrupt.But the EXTI15_10_IRQHandler() fails to execute a second interrupt if it happens too close to the first interrupt.But it seems only happen when I use bit-band...
I'm having trouble getting the ADC on a STM32L476VGT6 discovery board to work. If I run by configuration code then click the ADSTART bit in the debugger, everything works fine. If I set the ADSTART bit in code in real time, the conversion never fin...
So, we are creating firmware for the STM32F7 that takes pictures and stores them to an SDCard. We have implemented kind of a custom database format which stores a kind of file allocation table in RAM, makes the edits as necessary, and then copies the...
Hi.I'm experiencing a very weird problem with a design, a CAN bus keypad with RGB backlit keys, in which the MCU (STM32F072C8T6) would sometimes overheat to over 150ºC and stop working. This happens some times in first power up of a unit, or after a ...
In the STM32F446xC/E datasheet, DocID027107 Rev 6, footnote under Table 11. Alternate function says:1. The DCMI_VSYNC alternate function on PG9 is only available on silicon revision 3.However, neither DBGMCU_IDCODE description in RM0390 Rev 4, nor ST...
When i m using circular ADC1 DMA and writting data on sd-card,mostly data lost, why?
I have the system clock set as 120Mhz. I used the HAL driver code, HAL_PWR_EnterSLEEPMode, to enter Low power sleep mode. However, when it checks if it's in run mode, it doesn't recognise its actually in run mode. /* If in run mode, first move to...
Hi,Can anyone recommend the best way to generate microseconds delay??and how to generate it??
Hello everyone,We're working in a design with the STM32L151ZE and a power supply of 3V. We're trying to design a connector able to detect when specific resistances are present.I've seen that there are some inputs of the chip that are 5V tolerant, whe...
I wish to use my STM32F429 as a top-notch audio player, driving a good I2S DAC. 192KHx, 24bit, stereo. First of all, can I bypass the internal clock scheme by sending a high quality clock to PC9 (I2S_CKIN) ? From my calculation, I'd need a 49.152Mhz ...
