fix(bmi270): make burst write size configurable to prevent stack overflow

Author: Concode0

components/bmi270/include/bmi270.hpp

@@ -85,6 +85,11 @@ class Bmi270 : public espp::BasePeripheral<uint8_t, Interface == bmi270::Interfa
         nullptr;                                          ///< Read function
     ImuConfig imu_config;                                 ///< IMU configuration
     filter_fn orientation_filter = nullptr;               ///< Filter function for orientation
+    /**
+     * @brief Maximum number of bytes to write in a single burst during config upload.
+     * Default is 128 bytes. Decrease this if you encounter stack overflow.
+     */
+    uint16_t burst_write_size = 128;
     bool auto_init{true};                                 ///< Automatically initialize the BMI270
     Logger::Verbosity log_level{Logger::Verbosity::WARN}; ///< Log level
   };
@@ -94,7 +99,8 @@ class Bmi270 : public espp::BasePeripheral<uint8_t, Interface == bmi270::Interfa
   explicit Bmi270(const Config &config)
       : BasePeripheral<uint8_t, Interface == bmi270::Interface::I2C>({}, "Bmi270", config.log_level)
       , orientation_filter_(config.orientation_filter)
-      , imu_config_(config.imu_config) {
+      , imu_config_(config.imu_config)
+      , burst_write_size_(config.burst_write_size) {
     if constexpr (Interface == bmi270::Interface::I2C) {
       set_address(config.device_address);
     }
@@ -567,7 +573,7 @@ class Bmi270 : public espp::BasePeripheral<uint8_t, Interface == bmi270::Interfa
     // upload config file:
     // - burst write 8 kB init data to INIT_DATA, using 128-byte writes
     const uint8_t *config_data = config_file;
-    size_t burst_size = config_file_size;
+    size_t burst_size = burst_write_size_;
     size_t config_size = config_file_size;
     size_t offset = 0;
     while (offset < config_size) {
@@ -706,6 +712,7 @@ class Bmi270 : public espp::BasePeripheral<uint8_t, Interface == bmi270::Interfa
   // Member variables
   filter_fn orientation_filter_{nullptr};
   ImuConfig imu_config_{};
+  uint16_t burst_write_size_{128};
   Value accel_values_{};
   Value gyro_values_{};
   float temperature_{0.0f};