B-G431B-ESC1 circuit with 64 pin STM32G431RB

[dannypkchan]

I have custom board based on G431CBT6 which's based on B-G431B-ESC design without any issues, however I need more pins such as more UARTs and ADCs therefore I made another custom board which's based on G431RB 64 pins, how the problem is the SysTick_Handler routine in stm32g4xx_mc_it.c has never called, can anyone know what's different between CB and RB ?

danny

[TDK]

> can anyone know what's different between CB and RB ?

The package and related things (number of pins, footprint) are different, that's it.

[dannypkchan]

i understand that, for CB scale up to RB all of the pins are same, and I also check the STM32G431RBTX_FLASH.ld and startup_stm32g431rbtx.s files but found no different.