The reference manual for STM32F407 shows (RM0090) that the PTP clock is running from the SYSCLK directly, however, the PTP chapter says that it is controlled by the HCLK. I'm confused now, and experiments show that it is running from HCLK actually. S...
Hi,I would ask the community a suggestion for clock configuration.I should use the USB ans Mass Storage Class using the SD card by SDMMC interface as memory. This function is used for 5 to 10% of my device usage, so I would decrease the SYSCLK for po...
In functionuint32_t HAL_RCCEx_GetPeriphCLKFreq(uint32_t PeriphClk)string /* Get the current I2S source */ srcclk = __HAL_RCC_GET_I2S_SOURCE();must be /* Get the current I2S source */ srcclk = __HAL_RCC_GET_I2S_SOURCE() ? RCC_I2SCLKSOU...
I have 4 x STM32F373CCT6 on a custom board connected to a USB hub, all of which are clocked from a 3v3 24MHz oscillator ( rather than putting down 5 crystals and all the caps ). I have the 1k5 resistor pull up on the D+ line. when the board is power...
Ok, I'm at a complete loss here so I'm looking for any ideas or suggestions. We have a code base that runs on top of FreeRTOS and we have versions of the code that run on multiple, different STM32L4s and on the STM32H753. I ported the code base to ...
Hello, I'm using the demoboard B-U585-I-IOT02A with ThreadX. My internal clock is 160 MHz and I currently use it for ThreadX. I'm doing some tasks periodically every one threadX second but it seems that my HSI has a small inaccuracy of 0.3%. But sinc...
When this function is called with the OSC configured, e.g. from bootloader, it checks if the PLLM/N/P/Q in RCC PLLCFGR reg are the same as requested. That check fails, even if the parameters in the second config request are the same.Problem is locate...
Hi, I am working with a STM32H743 and I am trying to use USB OTG FS with the best clock configuration possible. I would like to have a SYSCLK at 480MHz and use the USB OTG FS with the external clock source HSE at 48MHz.The frequency of the external c...
While looking at the rcc registers, you can see the ICSCR register on the debug screen, but when I write on the program, I encounter an error, I wonder what is the reason.
