I'm trying to test the low power modes (I don't care about the current at this point). I start the Next I run this:cd /usr/local/Cube-M4-examples/STM32MP157C-DK2/Applications/OpenAMP/OpenAMP_TTY_echo_wakeup fw_cortex_m4.sh start echo enabled > /sys/d...

I have a really simple application setup. I'm currently feeding in one PDM microphone. I'm using the SAI interface (code is attached). First there appears to be a bug in the ST code. The SAI_PDMCR register have a field to set up to 4 microphones (see...

We are using an STM32F303VEH6 on a custom design. We are using a ILCX13-FF5F10-16.000MHZ crystal oscillator. We have the PLL and clock gain setup to generate a 72 MHz CPU clock. On some CPUs we have problems where the CPU doesn't appear to try and st...

I have been banging my head against the wall for days on this one. I'm using STM32CubeIDE 1.1.0. I create a simple project with a SPI interface and DMA. I'm attaching the full project. I call one function: MX_GPIO_Init(); MX_USART2_UART_Init(); ...

I'm trying to develop an application that puts the A7 into a low power mode and only uses the M4 to do some basic processing. I'm starting with the OpenAMP_TTY_echo_wakeup example. In the example it says to issue the following commands:echo "*delay" ...