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diff --git a/uart/hello_world/README b/uart/hello_world/README new file mode 100644 index 0000000..11d180b --- /dev/null +++ b/uart/hello_world/README @@ -0,0 +1,32 @@ +------------------------------------------------------------------------------- +Hello World UART output using various options +------------------------------------------------------------------------------- + +This is a collection of example UART communication (only in one direction). +The repeatedly transmitted data is "Hello World!\r\n", using 8n1 settings. + + +Logic analyzer setup +-------------------- + +The logic analyzer used for capturing is a ChronoVu LA8 at a sample rate +of 5MHz (for baud rates 921600 - 230400), 1MHz (for 115200 - 19200), +and 625kHz (for baud rates 9600 - 110). + +The ChronoVu LA8 probes were connected to the UART like this: + + Probe UART + ------------------- + 0 (green) TX + GND GND + + +Data +---- + +The sigrok command line used was: + + sigrok-cli -d 0:samplerate=<hz> --samples 8388608 -p '1=TX' -o <file>.sr + +We capture as many samples as fit into the 8MByte buffer of the logic analyzer. + |