2009-07-31 06:09 AM
STM32 FIFO depth
2011-05-17 04:19 AM
How deep is the USART FIFO on the STM32 micros? The documentation suggests one byte, but it feels like more than that from testing.
2011-05-17 04:19 AM
Hi,
We do not have FIFOs in our STM32F10xx USART, However we have DMA as an efficient alternative for Data movements and without CPU usage instead of FIFOs : I highly suggest you to have a look at this App Note Cheers, STOne-32.2011-05-17 04:19 AM
I must be doing something wrong then. I'm using a rs485 transceiver, so I rx what I tx. If I disable the 485 driver after the last TXE interrupt, I never receive the last few (3) characters. If there were no FIFO, I would expect not to receive just the last character as it was in the shift register while the driverwas disabled.
I trust you but, like I said, I must be doing something wrong. [ This message was edited by: mdeneen on 31-07-2009 18:43 ]