add files

1 files changed, 36 insertions, 0 deletions

diff --git a/spi_comm/openmv_slave/spi_com_master.py b/spi_comm/openmv_slave/spi_com_master.py
new file mode 100644
index 0000000..6e10881
--- /dev/null
+++ b/spi_comm/openmv_slave/spi_com_master.py
@@ -0,0 +1,36 @@
+from machine import SPI, Pin
+deg = 40
+binary = format(deg, 'b')
+print(binary)
+
+spi = SPI(0, baudrate=400000)           # Create SPI peripheral 0 at frequency of 400kHz.
+                                        # Depending on the use case, extra parameters may be required
+                                        # to select the bus characteristics and/or pins to use.
+cs = Pin(4, mode=Pin.OUT, value=1)      # Create chip-select on pin 4.
+
+try:
+    cs(0)                               # Select peripheral.
+    spi.write(b"12345678")              # Write 8 bytes, and don't care about received data.
+finally:
+    cs(1)                               # Deselect peripheral.
+
+try:
+    cs(0)                               # Select peripheral.
+    rxdata = spi.read(8, 0x42)          # Read 8 bytes while writing 0x42 for each byte.
+finally:
+    cs(1)                               # Deselect peripheral.
+
+rxdata = bytearray(8)
+try:
+    cs(0)                               # Select peripheral.
+    spi.readinto(rxdata, 0x42)          # Read 8 bytes inplace while writing 0x42 for each byte.
+finally:
+    cs(1)                               # Deselect peripheral.
+
+txdata = b"12345678"
+rxdata = bytearray(len(txdata))
+try:
+    cs(0)                               # Select peripheral.
+    spi.write_readinto(txdata, rxdata)  # Simultaneously write and read bytes.
+finally:
+    cs(1)                               # Deselect peripheral.