Control and status register
TRACE_CAPTURE_FIFO_FLUSH | Set to 1 to continuously hold the trace FIFO in a flushed state and prevent overflow. Before clearing this flag, configure and start a DMA channel with the correct DREQ for the TRACE_CAPTURE_FIFO register. Clear this flag to begin sampling trace data, and set once again once the trace capture buffer is full. You must configure the TPIU in order to generate trace packets to be captured, as well as components like the ETM further upstream to generate the event stream propagated to the TPIU. |
TRACE_CAPTURE_FIFO_OVERFLOW | This status flag is set high when trace data has been dropped due to the FIFO being full at the point trace data was sampled. Write 1 to acknowledge and clear the bit. |