Question
I'm using a stm32g473 and a sim7600E-H, uart not working reliably.
In my code i first setup the sim7600 using blocking mode and later switch to dma. But in blocking mode I'm having trouble receiving data over uart. Using a nucleo it sometimes works very reliably and other times doesn't work at all or it only receives the first letter. on my custom board i once was able to get at ok response but other times it was nothing or some random character. What could be the reason?
