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STM32h7: USART doesn't work anymore after switching from compiler V5.06 to V6.14

Hello,

Currently I completed a Rs232 programm with Keil uVision5 and the V5.06 Compiler.

It all works pretty well but today i switched to the Compiler V6.14 and after that, I got only a "00" as answer in hterm instead of the right frame.

The correct frame is in the array and also the pointers are right.

The answer is transmitted by DMA1 Stream1.

Receiving a frame with Interrupt still works perfect, only transmitting with DMA and without DMA doesn't work after changing the Compiler.

I hope you can help me

Andi

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