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diff --git a/docs/source/usart.rst b/docs/source/usart.rst new file mode 100644 index 0000000..3beb3fc --- /dev/null +++ b/docs/source/usart.rst @@ -0,0 +1,34 @@ +.. _usart: + +======= + USART +======= + +.. contents:: + :local: + +Hardware/Circuit Design +----------------------- + +The Maple has 3 separate USART devices. In the most simple use case, +the RX and TX pins are used to send data at a predetermined baudrate +with the line voltage level relative to ground. Their usage is +documented in the :ref:`Serial Ports <lang-serial>` language reference +page. + +Compatible Devices and Specifications +------------------------------------- + +We have successfully used the Maple USART ports with an FT232R-based +USB-serial converter at up to 115200 baud; higher speeds should +certainly be possible. + +Recommended Reading +------------------- + +* `Wikipedia article on Universal asynchronous receiver/transmitter (USART) <http://en.wikipedia.org/wiki/Universal_asynchronous_receiver/transmitter>`_ +* `Arduino reference on Serial <http://arduino.cc/en/Reference/Serial>`_ +* STMicro documentation for STM32F103RB microcontroller: + + * `Datasheet <http://www.st.com/stonline/products/literature/ds/13587.pdf>`_ (pdf) + * `Reference Manual <http://www.st.com/stonline/products/literature/rm/13902.pdf>`_ (pdf) |