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29 * Copyright 2010 Develer S.r.l. (http://www.develer.com/)
33 * \brief LM3S1968 GPIO control interface.
45 #define GPIO_DIR_MODE_IN 0x00000000 //< Pin is a GPIO input
46 #define GPIO_DIR_MODE_OUT 0x00000001 //< Pin is a GPIO output
47 #define GPIO_DIR_MODE_HW 0x00000002 //< Pin is a peripheral function
54 #define GPIO_STRENGTH_2MA 0x00000001 //< 2mA drive strength
55 #define GPIO_STRENGTH_4MA 0x00000002 //< 4mA drive strength
56 #define GPIO_STRENGTH_8MA 0x00000004 //< 8mA drive strength
57 #define GPIO_STRENGTH_8MA_SC 0x0000000C //< 8mA drive with slew rate control
64 #define GPIO_PIN_TYPE_STD 0x00000008 //< Push-pull
65 #define GPIO_PIN_TYPE_STD_WPU 0x0000000A //< Push-pull with weak pull-up
66 #define GPIO_PIN_TYPE_STD_WPD 0x0000000C //< Push-pull with weak pull-down
67 #define GPIO_PIN_TYPE_OD 0x00000009 //< Open-drain
68 #define GPIO_PIN_TYPE_OD_WPU 0x0000000B //< Open-drain with weak pull-up
69 #define GPIO_PIN_TYPE_OD_WPD 0x0000000D //< Open-drain with weak pull-down
70 #define GPIO_PIN_TYPE_ANALOG 0x00000000 //< Analog comparator
73 /* Write a value to the specified pin(s) */
74 INLINE void lm3s_gpio_pin_write(uint32_t port, uint8_t pins, uint8_t val)
76 HWREG(port + (GPIO_O_DATA + (pins << 2))) = val;
79 int lm3s_gpio_pin_config(uint32_t port, uint8_t pins,
80 uint32_t mode, uint32_t strength, uint32_t type);
81 void lm3s_gpio_pin_write(uint32_t port, uint8_t pins, uint8_t val);
83 #endif /* GPIO_LM3S_H */