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Using Libc's stdio to Send Formatted Strings
Last modified by Microchip on 2026/10/23 09:39
Overview
In this video:
Provide good community tutorials to understand how to use printf()
Set up a file and a stream using FDEV_SETUP_STREAM
Copy our existing IRQ-based void USART0_Transmit(unsigned char data) function, then modify the parameter types to match what FDEV_SETUP_STREAM expects to create int USART0_Transmit_IO( char data, FILE *steam ), in the process extending the functionality of our USART_irq driver
If you need to work with Microchip Support staff directly, you can submit a technical support case. Keep in mind that many questions can be answered through our self-help resources, so this may not be your speediest option.
