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Signed-off-by: NikhitaR-IFX <Nikhita.Rajasekhar@infineon.com>
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,97 @@ | ||
| import binascii | ||
| import time | ||
| import os | ||
|
|
||
| try: | ||
| from machine import SPI, SPISlave | ||
| except ImportError: | ||
| print("SKIP") | ||
| raise SystemExit | ||
|
|
||
| # Allocate pin based on board | ||
| sck_master_pin = "P6_2" | ||
| mosi_master_pin = "P6_0" | ||
| miso_master_pin = "P6_1" | ||
| ssel_master_pin = "P6_3" | ||
|
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||
| success = b"1" | ||
| failed = b"2" | ||
|
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| def spi_master_configure(): | ||
| spi_obj = SPI( | ||
| baudrate=1000000, | ||
| polarity=0, | ||
| phase=0, | ||
| bits=8, | ||
| firstbit=SPI.MSB, | ||
| ssel=ssel_master_pin, | ||
| sck=sck_master_pin, | ||
| mosi=mosi_master_pin, | ||
| miso=miso_master_pin, | ||
| ) | ||
| print("\n", spi_obj) | ||
| return spi_obj | ||
|
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||
|
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| def _verify_test(test_case, actual_data, exp_data): | ||
| print("rx: ", actual_data) | ||
| if actual_data == exp_data: | ||
| print(test_case + ": successful") | ||
| else: | ||
| print(test_case + ": failed") | ||
|
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||
|
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| def spi_half_duplex_communication(spi_obj, tx, rx): | ||
| print("\n*** Half duplex communication ***") | ||
| status = bytearray(1) | ||
| print("1) master-->write and slave-->read") | ||
| spi_obj.write(tx) | ||
| print("tx: ", tx) | ||
| status = spi_obj.read(1) | ||
| _verify_test("master write", status, success) | ||
|
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||
| print("2) slave-->write and master-->read using readinto()") | ||
| spi_obj.readinto(rx) | ||
| _verify_test("master read ", rx, tx) | ||
|
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||
| print("3) slave-->write and master-->read using readinto by sending out a write_byte=0x12") | ||
| spi_obj.readinto(rx, 0x12) | ||
| _verify_test("master read ", rx, tx) | ||
| status = spi_obj.read(1) | ||
| _verify_test("write_byte received by slave correctly", status, success) | ||
|
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| def spi_full_duplex_communication(spi_obj, tx, rx): | ||
| print("*** Full duplex communication ***") | ||
| exp_rx = b"\x06\x06\x05\x05" | ||
| print("1) master-->write and slave-->read continuously") | ||
| spi_obj.write_readinto(tx, rx) | ||
| _verify_test("read value is same as expected", rx, exp_rx) | ||
|
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| """def spi_master_read_verify(spi_obj,tx,rx): | ||
| rx = spi_obj.read(len(tx)) | ||
| print(rx) | ||
| rx = spi_obj.read(len(tx),0x11) | ||
| print(rx) | ||
| print("SPI master write followed by read is successful: ", rx==tx) | ||
| def spi_master_readinto_verify(spi_obj,tx,rx): | ||
| spi_obj.write(tx) | ||
| print("SPI master write completed") | ||
| rx = spi_obj.read(len(tx)) | ||
| print(rx) | ||
| print("SPI master write followed by read is successful: ", rx==tx)""" | ||
|
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| print("*** SPI MASTER INSTANCE ***") | ||
|
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| spi_obj = spi_master_configure() | ||
|
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| tx_buf = b"\x08\x01\x08\x02" | ||
| rx_buf = bytearray(4) | ||
| spi_half_duplex_communication(spi_obj, tx_buf, rx_buf) | ||
|
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||
| """tx_buf = b"\x06\x08\x05\x07" | ||
| rx_buf = bytearray(4) | ||
| spi_full_duplex_communication(spi_obj, tx_buf, rx_buf)""" |
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,86 @@ | ||
| import binascii | ||
| import time | ||
| import os | ||
|
|
||
| try: | ||
| from machine import SPI, SPISlave | ||
| except ImportError: | ||
| print("SKIP") | ||
| raise SystemExit | ||
|
|
||
| sck_slave_pin = "P13_2" | ||
| mosi_slave_pin = "P13_0" | ||
| miso_slave_pin = "P13_1" | ||
| ssel_slave_pin = "P13_3" | ||
|
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||
| success = b"1" | ||
| failed = b"2" | ||
|
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||
|
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||
| def spi_slave_configure(): | ||
| spi_obj = SPISlave( | ||
| baudrate=1000000, | ||
| polarity=0, | ||
| phase=0, | ||
| bits=8, | ||
| firstbit=SPI.MSB, | ||
| ssel=ssel_slave_pin, | ||
| sck=sck_slave_pin, | ||
| mosi=mosi_slave_pin, | ||
| miso=miso_slave_pin, | ||
| ) | ||
| print("\n", spi_obj) | ||
| return spi_obj | ||
|
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||
|
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||
| def _verify_test(rx, exp_data): | ||
| if rx == exp_data: | ||
| print("Successful") | ||
| spi_obj.write(success) | ||
| else: | ||
| print("Failed") | ||
| spi_obj.write(failed) | ||
|
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||
|
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| def spi_half_duplex_communication(spi_obj, tx, rx): | ||
| print("\n***Half duplex communication ***") | ||
| write_byte = "0x12" | ||
| write_byte_status = bytearray(1) | ||
| print("1) master-->write and slave-->read") | ||
| # 1) master-->write and slave-->read | ||
| spi_obj.read(rx) | ||
| print("rx: ", rx) | ||
| exp_data = tx | ||
| _verify_test(rx, exp_data) | ||
|
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| # 2) slave-->write and master-->read" | ||
| print("2) slave-->write and master-->read using readinto()") | ||
| spi_obj.write(tx) | ||
|
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| # 3) slave-->write and master-->read by sending a write_byte=0x12" | ||
| print("3) slave-->write and master-->read using readinto by sending out a write_byte=0x12") | ||
| spi_obj.write(tx) | ||
| spi_obj.read(write_byte_status) | ||
| _verify_test(write_byte_status, b"0x12") | ||
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| def spi_full_duplex_communication(spi_obj, tx, rx): | ||
| print("*** Full duplex communication ***") | ||
| exp_rx = b"\x06\x08\x05\x07" | ||
| print("1) master-->write and slave-->read continuously") | ||
| spi_obj.write_readinto(tx, rx) | ||
| print(rx) | ||
| # _verify_test("") | ||
|
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| print("*** SPI SLAVE INSTANCE ***") | ||
|
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| spi_obj = spi_slave_configure() | ||
|
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| tx_buf = b"\x08\x01\x08\x02" | ||
| rx_buf = bytearray(4) | ||
| spi_half_duplex_communication(spi_obj, tx_buf, rx_buf) | ||
|
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| """tx_buf = b"\x06\x06\x05\x05" | ||
| rx_buf = bytearray(4) | ||
| spi_full_duplex_communication(spi_obj, tx_buf, rx_buf)""" |