Software Impact for replacing STM32F070RBT6 with STM32L071RBT6

[HTIWA.1]

Hi,

We have some allocation issues with the existing micro-controller part STM32F070RBT6 being used in one of our Printed Circuit Board. So, I am thinking of replacing it with a different STM32 part (Part Number: STM32L071RBT6). The hardware pin outs for the replacement STM32 part looks to be in sync with the existing part. However, I am not sure what would be the impact from the Software side.

Could any one please let me know, if this would be requiring any change to the existing software source code?Thank You,

Hemant

[TDK]

Almost certainly it will require changes to the source code. These chips are from different families, one is Cortex-M0 and the other is Cortex-M0+. The amount of changes will depend on what your source code does. The RCC registers are significantly different. Some other peripherals not so much.