Setting Up UART Connection with Microcontroller Clock Frequency
Obtaining Clock Rate of 9600 Hz for UART Connection
1. Divide the microcontroller's clock frequency (1,000,000 Hz) by the desired UART connection baud rate (9600 baud). This results in a division factor of approximately 104.167.
2. Most microcontrollers have a built-in UART peripheral that includes a configurable baud rate generator. You would need to consult the specific microcontroller's datasheet to find the appropriate registers and settings to configure the baud rate generator.
3. Input the calculated division factor (104.167) into the baud rate generator's configuration register. Note that some microcontrollers may require you to round the division factor to the nearest integer value, which may slightly affect the actual baud rate achieved.
4. Once the baud rate generator has been configured, test the UART connection at the desired 9600 baud rate to ensure proper communication between devices.
By following the above conditions, you can obtain a clock rate of 9600 Hz for a UART connection with a microcontroller that has a clock of 1,000,000 Hz.
the microcontroller has a clock of 1,000,000 hz and we want to setup a uart connection at 9600 baud. how do we obtain a clock rate of 9600 hz? explain the approach at a high level.
To obtain a clock rate of 9600 Hz from a microcontroller with a clock of 1,000,000 Hz for a UART connection at 9600 baud, you would need to configure the microcontroller's baud rate generator to achieve the desired frequency. Here's the detail of the approach at a high level:
1. Divide the microcontroller's clock frequency (1,000,000 Hz) by the desired UART connection baud rate (9600 baud). This results in a division factor of approximately 104.167.
2. Most microcontrollers have a built-in UART peripheral that includes a configurable baud rate generator. You would need to consult the specific microcontroller's datasheet to find the appropriate registers and settings to configure the baud rate generator.
3. Input the calculated division factor (104.167) into the baud rate generator's configuration register. Note that some microcontrollers may require you to round the division factor to the nearest integer value, which may slightly affect the actual baud rate achieved.
4. Once the baud rate generator has been configured, test the UART connection at the desired 9600 baud rate to ensure proper communication between devices.