ChibiOS Free Embedded RTOS

Hi

Using STM32H563 Nucleo RTC and Alarm A. I hit a sysHalt() in rtc_lld_serve_interrupt() at the STM32_RTC_CLEAR_ALL_EXTI() at the first alarm.

Screenshot 2026-03-19 201537.png

Screenshot 2026-03-19 204619.png

#define STM32_EXTI_IMR1_MASK 0xFFFE0000U is maybe not correct ?

Thanks

#81 #define STM32_VOS1_PCLK2_MAX 200000000

should be

#define STM32_VOS1_PCLK3_MAX 200000000

I think

I have got serial, LED blinky and shell working on the STM32H573I-DK.

But when I add in SDC I have a problem. In 'hal_lld.c':

/**
* @brief SDMMC1 clock frequency.
*/
#if (STM32_SDMMC1SEL == STM32_SDMMC1SEL_PLL1Q) || defined(__DOXYGEN__)
#define STM32_SDMMC1CLK hal_lld_get_clock ...

Got it, thank you Giovanni

Hi,

Is there a demo for this driver?

An earlier post mentions these but I couldn't locate them.
- Demo for STM32F3-Discovery and N25Q128 in SPI mode.
- Demo for STM32L476-Discovery and N25Q128 in QSPI mode.

Thank you

I want to wait on two eventflags_t being set. Is that possible?

I see chEvtWaitAll() but that appears to wait on events. Is the only way to do it to register two event listeners?

Thank you

I wonder if there is an issue with the function sys_arch_mbox_fetch() in the file os\various\lwip_bindings\arch\sys_arch.c

LWIP sets its DHCP timers in milliseconds but sys_arch_mbox() uses system ticks.

Should the calls to osalOsGetSystemTimeX() within sys_arch_mbox() be converted with ST2MS ...

Thank you Giovanni

Ah I see, thank you. Should then your article http://chibios.org/dokuwiki/doku.php?id=chibios:articles:cortexm7_dma_guide say :-

Advantages

Does not require active runtime-handling.
It is perfectly transparent to the application.
Does not have any performance hit.
DTCM RAM is ...

Thank you Giovanni,

ITCM-RAM "ram4" is the 16KB area optimized for DMA accesses that could be used for dedicated DMA RAM?