6.0 Duplicate requirements between management agencies
The benefits of connecting automotive electronics to a local Bluetooth network are becoming increasingly apparent and quickly become a standard feature favored by customers with intent to purchase. However, the automotive industry has special requirements for reliability and compatibility that exceed normal home and office standards.
7.0 Bluetooth Processor (Microcontroller) Example
The CP3BT1x device from National Semiconductor is an example of an automotive-grade microcontroller that uses Bluetooth connectivity. The CPU uses the latest version of the CompactRISC processor core, a high-performance 16-bit processor, designed with 32-bit extensions for embedded control and connectivity applications. In addition, the CP3BT1x device provides the following features:
256KB Flash program memory
8KB flash data storage
10KBSRAM
USB1.1 (CP3BT10) or CAN2.0B (CP3BT13) interface
UART
SPI/Microwire interface
ACCESS bus interface (I2C compatible)
Codec interface
Timer with control and capture registers
37 (CP3BT10) or 40 (CP3BT13) GPIO pins
100-pin LQFP and 48-pin chip scale (7 x 7 mm) package
The power/performance ratio is 0.5 mA/MHz.
Very low power consumption (frequency 12MHz, current is only 6mA at 2.5V)
The 12MHz operating frequency (up to 24MHz on a single chip) provides enough CPU bandwidth to run the Bluetooth protocol stack and application tasks.
National Semiconductor offers a complete pre-test/pre-qualification Bluetooth stack that includes low-level and high-level protocol layers. This complete stack execution provides sufficient chip program memory for the application code. National Semiconductor provides one-stop application support for all aspects of the technology, including chips, development tools, embedded Bluetooth software, and the μC/OS-II operating system.
The benefits of connecting automotive electronics to a local Bluetooth network are becoming increasingly apparent and quickly become a standard feature favored by customers with intent to purchase. However, the automotive industry has special requirements for reliability and compatibility that exceed normal home and office standards.
8.0 Summary
The benefits of connecting automotive electronics to a local Bluetooth network are becoming increasingly apparent and quickly become a standard feature favored by customers with intent to purchase. However, the automotive industry has special requirements for reliability and compatibility that exceed normal home and office standards. The introduction of new wireless technologies has created new possibilities for interacting with complex systems, so the importance of ensuring non-interfering detection standards is becoming increasingly important. Qualified microcontrollers in automotive applications now offer integrated Bluetooth hardware and wireless products that offer low-risk, fast-track benefits for developing products that meet automotive industry standards.
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