Added timeout to bus communication and added error handling via return values

include/sta/bus/spi/device.hpp

@@ -30,6 +30,7 @@ namespace sta
         SPIDevice(SPI * intf, GpioPin * csPin);
 
         using Device::transfer;
+
         /**
 		 * @brief Send and receive data simultaneously.
 		 *
@@ -37,7 +38,7 @@ namespace sta
 		 * @param rxBuffer  Receive buffer
 		 * @param size      Number of bytes to transfer
 		 */
-		void transfer(const uint8_t * txBuffer, uint8_t * rxBuffer, size_t size);
+		bool transfer(const uint8_t * txBuffer, uint8_t * rxBuffer, size_t size, uint32_t timeout = STA_MAX_TIMEOUT);
 
         /**
          * @brief Get %SPI interface settings.

include/sta/bus/spi/spi.hpp

@@ -38,7 +38,25 @@ namespace sta
 		 * @param rxBuffer  Receive buffer
 		 * @param size      Number of bytes to transfer
 		 */
-		virtual void transfer(const uint8_t * txBuffer, uint8_t * rxBuffer, size_t size) = 0;
+		virtual bool transfer(const uint8_t * txBuffer, uint8_t * rxBuffer, size_t size, uint32_t timeout = STA_MAX_TIMEOUT) = 0;
+
+        /**
+         * @brief Write data to a specific memory address of the peripheral.
+         * 
+         * @param regAddr The memory address.
+         * @param buffer The buffer of data to write to the address
+         * @param size The number of bytes to write to the peripheral.
+         */
+        bool writeMemory(uint8_t regAddr, const uint8_t * buffer, size_t size, uint32_t timeout = STA_MAX_TIMEOUT) override;
+
+        /**
+         * @brief Read data from a specific memory address of the peripheral.
+         * 
+         * @param regAddr The memory address.
+         * @param buffer The buffer of data to write the received data to.
+         * @param size The number of bytes to receive from the peripheral.
+         */
+        bool readMemory(uint8_t regAddr, uint8_t * buffer, size_t size, uint32_t timeout = STA_MAX_TIMEOUT) override;
 
         /**
          * @brief Get %SPI interface settings.
@@ -46,7 +64,6 @@ namespace sta
          * @return %SPI settings
          */
         const SPISettings & settings();
-
     private:
         SPISettings settings_;  /**< %SPI settings */
     };