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Diffstat (limited to 'tests/spi-master/README.md')
| -rw-r--r-- | tests/spi-master/README.md | 25 |
1 files changed, 0 insertions, 25 deletions
diff --git a/tests/spi-master/README.md b/tests/spi-master/README.md deleted file mode 100644 index 504a074..0000000 --- a/tests/spi-master/README.md +++ /dev/null @@ -1,25 +0,0 @@ -SPI master mode tests - -While some of the disco boards have some form of spi device onboard, -which would, on the face of it, make testing easy, it's a different -device on each board, and there are boards without it. - -Instead, use a known SPI peripheral on all boards, and require/expect -a known fixed SPI slave device. Use a soft controller SPI slave device -for the far side, for double the test coverage! - -the "trigger" pin is bounced when each iteration of the test code starts, -allowing synchronization with a sigrok script that helps assure that -results are as expected. - -Debug is via SWO wherever possible, PA2 (tx only) on less capable cores - -Pinouts: - (red) (orange) (yellow)(brown) (black) -board CLK MISO MOSI CS periph trigger -f4-disco PB13 PB14 PB15 PB12 spi2 PB11 -l1-disco PB13 PB14 PB15 PB12 spi2 PB11 - - -Notes for monitoring with sigrok: -$ sigrok-cli -d fx2lafw -C D0=TRIG,D1=CS,D2=CLK,D3=MISO,D4=MOSI -c samplerate=12Mhz:captureratio=4 --time=150ms -t TRIG=r -P spi:clk=CLK:miso=MISO:mosi=MOSI -A spi=mosi-data |