[EXAMPLE:F0] Add usart printf example using newlib-nano
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Piotr Esden-Tempski
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examples/stm32/f0/stm32f0-discovery/usart_stdio/README
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examples/stm32/f0/stm32f0-discovery/usart_stdio/README
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------------------------------------------------------------------------------
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README
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------------------------------------------------------------------------------
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This example program sends some characters on USART1 on the
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ST STM32F0DISCOVERY eval board. PA9
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The terminal settings for the receiving device/PC are 38400 8n1.
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The sending is done using newlib-nano library in a blocking way in the code.
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