I'd like to program a LIS331EB which is an ST product with an integrated cortex-M0 core. ST says it can be programmed with ST-link even though it is neither an STM32 nor STM8. The lis331eb's core and SWDIO- SWCLK pins run from 1.8V.
When I'd like to program my device I can see on the oscilloscope that the SWDIO and SWCLK io levels are 3V, only the reset line got the core's 1.8V IO level.
Do you think it is OK? I did not find anywhere that the SWDIO/SWCLK pins would be 3V tolerant, so it seems like a problem to me...
(I use ST-link/V2 which should be able to program down to 1.65V target voltage.)