fix lint code and spell

docs/guides/bouffalolab/matter_factory_data.md

@@ -22,10 +22,10 @@ size0 = 0x1000
 ```
 
 To enable matter factory data feature, please append `-mfd` option at end of
-target name. Take BL616 Wi-Fi Matter Light as example.
+target name. Take BL602 Wi-Fi Matter Light as example.
 
 ```
-./scripts/build/build_examples.py --target bouffalolab-bl616dk-light-wifi-mfd build
+./scripts/build/build_examples.py --target bouffalolab-bl602dk-light-littlefs-mfd build
 ```
 
 ## Factory data
@@ -115,6 +115,7 @@ Please reference to `--help` for more detail.
 
 -   Run following command to generate all plain text factory data
 
+    Please create output folder first. Here takes `out/test-cert` as example.
     ```shell
     ./scripts/tools/bouffalolab/generate_factory_data.py --output out/test-cert
     ```

docs/guides/index.md

@@ -23,6 +23,7 @@ ti/ti_matter_overview
 -   [Android - Building](./android_building.md)
 -   [Apple - Testing with iPhone, iPad, macOS, Apple TV, HomePod, Watch, etc](./darwin.md)
 -   [ASR - Getting Started Guide](./asr_getting_started_guide.md)
+-   [Bouffalo Lab - Matter factory data generation](./bouffalolab/matter_factory_data.md)
 -   [Espressif (ESP32) - Getting Started Guide](./esp32/README.md)
 -   [Infineon PSoC6 - Software Update](./infineon_psoc6_software_update.md)
 -   [Linux - Simulated Devices](./simulated_device_linux.md)

examples/lighting-app/bouffalolab/README.md

@@ -114,18 +114,18 @@ The following steps take examples for `BL602DK`, `BL704LDK` and `BL706DK`.
 
 -   `-wifi`, specifies to use Wi-Fi for Matter application.
 
-    -   BL602 uses Wi-Fi by defualt. `-wifi` could be elided.
+    -   BL602 uses Wi-Fi by default. `-wifi` could be elided.
     -   BL702 needs it to specify to use BL706 + BL602 for Wi-Fi.
 
 -   `-thread`, specifies to use Thread for Matter application.
 
-    -   BL70X uses Thread by defualt. `-thread` could be elided.
+    -   BL70X uses Thread by default. `-thread` could be elided.
 
 -   `-ethernet`, specifies to use Ethernet for Matter application.
 
     -   BL706 needs it to specify to use Ethernet.
 
--   `-littlefs`, specifies to use littlefs for flash access.
+-   `-littlefs`, specifies to use `littlefs` for flash access.
 -   `-easyflash`, specifies to use `easyflash` for flash access.
     -   for platform BL602/BL70X, it is necessary to specify one of `-easyflash`
         and `-littlefs`.

scripts/tools/bouffalolab/generate_factory_data.py

@@ -146,8 +146,6 @@ def get_subject_attr(subject, oid):
         if not os.path.isfile(cert):
             return None, None, None, None, None
 
-        ctx = ssl.create_default_context()
-
         with open(cert, 'rb') as cert_file:
             cert = x509.load_pem_x509_certificate(cert_file.read(), default_backend())
 
@@ -178,7 +176,7 @@ def verify_certificates(chip_cert, paa_cert, pai_cert, dac_cert):
 
         try:
             pai_public_key.verify(cert.signature, cert.tbs_certificate_bytes, ec.ECDSA(hashes.SHA256()))
-        except Exception as e:
+        except Exception:
             raise Exception("Failed to verify DAC signature with PAI certificate.")
 
         if (pai_cert != TEST_PAI_CERT and paa_cert != TEST_PAA_CERT) or (pai_cert == TEST_PAI_CERT and paa_cert == TEST_PAA_CERT):
@@ -329,7 +327,7 @@ def convert_to_bytes(data):
         elif data is None:
             return bytes([])
         else:
-            raise Exception("Data {} is invalid type: {}".format(name, type(data)))
+            raise Exception("Data is invalid type: {}".format(type(data)))
 
     def gen_tlvs(mfdDict, need_sec):
         MFD_ID_RAW_MASK = 0x8000
@@ -409,7 +407,7 @@ def gen_onboarding_data(args, onboard_txt, onboard_png, rendez=6):
         try:
             import qrcode
             from SetupPayload import CommissioningFlow, SetupPayload
-        except Exception as e:
+        except Exception:
             raise Exception("Please make sure qrcode has been installed.")
     else:
         raise Exception("Please make sure qrcode has been installed.")
@@ -434,7 +432,7 @@ def main():
     def check_arg(args):
 
         if not isinstance(args.output, str) or not os.path.exists(args.output):
-            raise Exception("output path is not specified.")
+            raise Exception("output path is not specified or not existed.")
         log.info("output path: {}".format(args.output))
 
         if not isinstance(args.chip_cert, str) or not os.path.exists(args.chip_cert):