jefftenney / lptim-tick-u5 Goto Github PK

When trying to compile with LSI clock on STM32U585 the following error occurs: 'RCC_CSR_LSIRDY' undeclared (first use in this function)

129#ifdef configTICK_USES_LSI
130  #define LPTIMSEL_Val 1 // LSI
131   #define IS_REF_CLOCK_READY() (RCC->CSR & RCC_CSR_LSIRDY)

looking up for STM32U5 reference design seems like there is no such a bit.

I was looking at the implementation more deeply and I can see that you used LPTIM1 for tickless mode. Then I found that LPTIM3 is also enabled in the IOC. But I don't find any use of it.

I saw this comment in READ ME. I don't get it.
LED is blinking twice particularly in that case. That means error in default tickless mode. Are this comment and error related?

I have been testing this with STM32u575 board, it was working fine with 24mhz clock and consumption was around 850uA but when I changed the system clk to 160Mhz it just increased to 5ma-10ma.

Increasing the clock may result in higher power consumption. But this is a significant increase.