Hereby I would like to start collecting mistaked in the UM10912 users manual. Here is the first one:
Chapter 220.127.116.11 (Initializing DMA), Step 9, see corrections in red:
Start the receive and transmit DMAs by setting SR (bit 0) of the
DMA_CH0_RX_CTRL, DMA_CH1_RX_CTRL and ST (bit 0) of the
DMA_CH0_TX_CTRL, DMA_CH1_TX_CTRL register.