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Showing results for tags 'enable interrupts'.
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Valid values for pfnIntHandler?
The_Meter413 posted a topic in GeneralI'm playing with interrupts using my Tiva C series launchpad (chip is the TM4C123GH6PM), and the latest TivaWare version. I'm reading through the API for registering interrupt handlers on a GPIO port, but I can't find some info: the function GPIOIntRegister takes as inputs a GPIO port base address, and a pointer to the interrupt handling functions. Prototype is: void GPIOIntRegister(uint32_t ui32Port, void (*pfnIntHandler)(void)) Where can I find valid values for pfnIntHandler? The example code uses PortEIntHandler, so I'm pretty sure I can deduce what I would need to do to use, say,
Noob question: enabling interrupts with TivaWare APIs?
The_Meter413 posted a topic in GeneralTotal noob question; I'm more or less teaching myself embedded systems with a Tiva C Series Launchpad. I'm using CCS v6 and the TivaWare Peripheral Driver Library (whatever the latest version is from TI). Question on enabling interrupts on a GPIO pin: I see in the API documentation for GPIO that one can enable interrupts on a GPIO pin using the function GPIOIntEnable() which takes the parameters of the port and pin. I also see in the NVIC section of the same doc the function IntEnable(). Do these functions essentially do the same thing? Is it right to assume that the preferred method t