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TI-RTOS Drivers
tidrivers_full_2_20_01_10
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Tiva GPIO driver.
============================================================================
The GPIO header file should be included in an application as follows:
Refer to GPIO.h for a complete description of APIs.
The GPIO module allows you to manage General Purpose I/O pins via simple and portable APIs. The application is required to supply a GPIOTiva_Config structure to the module (see example below). This structure communicates to the GPIO module how to configure the pins used by the application (See the description of GPIO_PinConfig in the GPIO.h file).
The application is required to call GPIO_init(). This function will initialize all the GPIO pins defined in the GPIO_PinConfig table to the configurations specified. Once completed the other APIs can be used to access the pins.
Asserts are used to verify that the driver has been initialized, and is reading/writing a valid index.
The following is an example of the code required to use 2 switches and 2 LEDs on an EK_TM4C1294XL Launchpad board.
Board header file:
Board initialization code:
Keep in mind that the callback functions will be called in the context of an interrupt service routine and should be designed accordingly. When an interrupt is triggered, the interrupt status of all (interrupt enabled) pins on a port will be read, cleared, and the respective callbacks will be executed. Callbacks will be called in order from least significant bit to most significant bit.
On select Tiva devices, ports P & Q are capable of per-pin interrupts (each pin has its own interrupt vector). If multiple interrupts on port P (or Q) are triggered, the first interrupt will clear all flags and execute the respective callbacks. Interrupts for other pins on P (or Q) will run, but will not execute callbacks.
The GPIO driver interface produces log statements if instrumentation is enabled.
Diagnostics Mask | Log details |
---|---|
Diags_USER1 | basic operations performed |
Go to the source code of this file.
Data Structures | |
struct | GPIOTiva_Config |
GPIO device specific driver configuration structure. More... | |
Macros | |
#define | GPIOTiva_EMPTY_PIN 0x0000 |
Device specific port/pin definition macros. More... | |
#define | GPIOTiva_PA_0 0x0001 |
#define | GPIOTiva_PA_1 0x0002 |
#define | GPIOTiva_PA_2 0x0004 |
#define | GPIOTiva_PA_3 0x0008 |
#define | GPIOTiva_PA_4 0x0010 |
#define | GPIOTiva_PA_5 0x0020 |
#define | GPIOTiva_PA_6 0x0040 |
#define | GPIOTiva_PA_7 0x0080 |
#define | GPIOTiva_PB_0 0x0101 |
#define | GPIOTiva_PB_1 0x0102 |
#define | GPIOTiva_PB_2 0x0104 |
#define | GPIOTiva_PB_3 0x0108 |
#define | GPIOTiva_PB_4 0x0110 |
#define | GPIOTiva_PB_5 0x0120 |
#define | GPIOTiva_PB_6 0x0140 |
#define | GPIOTiva_PB_7 0x0180 |
#define | GPIOTiva_PC_0 0x0201 |
#define | GPIOTiva_PC_1 0x0202 |
#define | GPIOTiva_PC_2 0x0204 |
#define | GPIOTiva_PC_3 0x0208 |
#define | GPIOTiva_PC_4 0x0210 |
#define | GPIOTiva_PC_5 0x0220 |
#define | GPIOTiva_PC_6 0x0240 |
#define | GPIOTiva_PC_7 0x0280 |
#define | GPIOTiva_PD_0 0x0301 |
#define | GPIOTiva_PD_1 0x0302 |
#define | GPIOTiva_PD_2 0x0304 |
#define | GPIOTiva_PD_3 0x0308 |
#define | GPIOTiva_PD_4 0x0310 |
#define | GPIOTiva_PD_5 0x0320 |
#define | GPIOTiva_PD_6 0x0340 |
#define | GPIOTiva_PD_7 0x0380 |
#define | GPIOTiva_PE_0 0x0401 |
#define | GPIOTiva_PE_1 0x0402 |
#define | GPIOTiva_PE_2 0x0404 |
#define | GPIOTiva_PE_3 0x0408 |
#define | GPIOTiva_PE_4 0x0410 |
#define | GPIOTiva_PE_5 0x0420 |
#define | GPIOTiva_PE_6 0x0440 |
#define | GPIOTiva_PE_7 0x0480 |
#define | GPIOTiva_PF_0 0x0501 |
#define | GPIOTiva_PF_1 0x0502 |
#define | GPIOTiva_PF_2 0x0504 |
#define | GPIOTiva_PF_3 0x0508 |
#define | GPIOTiva_PF_4 0x0510 |
#define | GPIOTiva_PF_5 0x0520 |
#define | GPIOTiva_PF_6 0x0540 |
#define | GPIOTiva_PF_7 0x0580 |
#define | GPIOTiva_PG_0 0x0601 |
#define | GPIOTiva_PG_1 0x0602 |
#define | GPIOTiva_PG_2 0x0604 |
#define | GPIOTiva_PG_3 0x0608 |
#define | GPIOTiva_PG_4 0x0610 |
#define | GPIOTiva_PG_5 0x0620 |
#define | GPIOTiva_PG_6 0x0640 |
#define | GPIOTiva_PG_7 0x0680 |
#define | GPIOTiva_PH_0 0x0701 |
#define | GPIOTiva_PH_1 0x0702 |
#define | GPIOTiva_PH_2 0x0704 |
#define | GPIOTiva_PH_3 0x0708 |
#define | GPIOTiva_PH_4 0x0710 |
#define | GPIOTiva_PH_5 0x0720 |
#define | GPIOTiva_PH_6 0x0740 |
#define | GPIOTiva_PH_7 0x0780 |
#define | GPIOTiva_PJ_0 0x0801 |
#define | GPIOTiva_PJ_1 0x0802 |
#define | GPIOTiva_PJ_2 0x0804 |
#define | GPIOTiva_PJ_3 0x0808 |
#define | GPIOTiva_PJ_4 0x0810 |
#define | GPIOTiva_PJ_5 0x0820 |
#define | GPIOTiva_PJ_6 0x0840 |
#define | GPIOTiva_PJ_7 0x0880 |
#define | GPIOTiva_PK_0 0x0901 |
#define | GPIOTiva_PK_1 0x0902 |
#define | GPIOTiva_PK_2 0x0904 |
#define | GPIOTiva_PK_3 0x0908 |
#define | GPIOTiva_PK_4 0x0910 |
#define | GPIOTiva_PK_5 0x0920 |
#define | GPIOTiva_PK_6 0x0940 |
#define | GPIOTiva_PK_7 0x0980 |
#define | GPIOTiva_PL_0 0x0A01 |
#define | GPIOTiva_PL_1 0x0A02 |
#define | GPIOTiva_PL_2 0x0A04 |
#define | GPIOTiva_PL_3 0x0A08 |
#define | GPIOTiva_PL_4 0x0A10 |
#define | GPIOTiva_PL_5 0x0A20 |
#define | GPIOTiva_PL_6 0x0A40 |
#define | GPIOTiva_PL_7 0x0A80 |
#define | GPIOTiva_PM_0 0x0B01 |
#define | GPIOTiva_PM_1 0x0B02 |
#define | GPIOTiva_PM_2 0x0B04 |
#define | GPIOTiva_PM_3 0x0B08 |
#define | GPIOTiva_PM_4 0x0B10 |
#define | GPIOTiva_PM_5 0x0B20 |
#define | GPIOTiva_PM_6 0x0B40 |
#define | GPIOTiva_PM_7 0x0B80 |
#define | GPIOTiva_PN_0 0x0C01 |
#define | GPIOTiva_PN_1 0x0C02 |
#define | GPIOTiva_PN_2 0x0C04 |
#define | GPIOTiva_PN_3 0x0C08 |
#define | GPIOTiva_PN_4 0x0C10 |
#define | GPIOTiva_PN_5 0x0C20 |
#define | GPIOTiva_PN_6 0x0C40 |
#define | GPIOTiva_PN_7 0x0C80 |
Typedefs | |
typedef struct GPIOTiva_Config | GPIOTiva_Config |
GPIO device specific driver configuration structure. More... | |
#define GPIOTiva_EMPTY_PIN 0x0000 |
Device specific port/pin definition macros.
Below are the port/pin definitions to be used within the board's pin configuration table. These macros should be OR'd in with the respective pin configuration settings.
#define GPIOTiva_PA_0 0x0001 |
#define GPIOTiva_PA_1 0x0002 |
#define GPIOTiva_PA_2 0x0004 |
#define GPIOTiva_PA_3 0x0008 |
#define GPIOTiva_PA_4 0x0010 |
#define GPIOTiva_PA_5 0x0020 |
#define GPIOTiva_PA_6 0x0040 |
#define GPIOTiva_PA_7 0x0080 |
#define GPIOTiva_PB_0 0x0101 |
#define GPIOTiva_PB_1 0x0102 |
#define GPIOTiva_PB_2 0x0104 |
#define GPIOTiva_PB_3 0x0108 |
#define GPIOTiva_PB_4 0x0110 |
#define GPIOTiva_PB_5 0x0120 |
#define GPIOTiva_PB_6 0x0140 |
#define GPIOTiva_PB_7 0x0180 |
#define GPIOTiva_PC_0 0x0201 |
#define GPIOTiva_PC_1 0x0202 |
#define GPIOTiva_PC_2 0x0204 |
#define GPIOTiva_PC_3 0x0208 |
#define GPIOTiva_PC_4 0x0210 |
#define GPIOTiva_PC_5 0x0220 |
#define GPIOTiva_PC_6 0x0240 |
#define GPIOTiva_PC_7 0x0280 |
#define GPIOTiva_PD_0 0x0301 |
#define GPIOTiva_PD_1 0x0302 |
#define GPIOTiva_PD_2 0x0304 |
#define GPIOTiva_PD_3 0x0308 |
#define GPIOTiva_PD_4 0x0310 |
#define GPIOTiva_PD_5 0x0320 |
#define GPIOTiva_PD_6 0x0340 |
#define GPIOTiva_PD_7 0x0380 |
#define GPIOTiva_PE_0 0x0401 |
#define GPIOTiva_PE_1 0x0402 |
#define GPIOTiva_PE_2 0x0404 |
#define GPIOTiva_PE_3 0x0408 |
#define GPIOTiva_PE_4 0x0410 |
#define GPIOTiva_PE_5 0x0420 |
#define GPIOTiva_PE_6 0x0440 |
#define GPIOTiva_PE_7 0x0480 |
#define GPIOTiva_PF_0 0x0501 |
#define GPIOTiva_PF_1 0x0502 |
#define GPIOTiva_PF_2 0x0504 |
#define GPIOTiva_PF_3 0x0508 |
#define GPIOTiva_PF_4 0x0510 |
#define GPIOTiva_PF_5 0x0520 |
#define GPIOTiva_PF_6 0x0540 |
#define GPIOTiva_PF_7 0x0580 |
#define GPIOTiva_PG_0 0x0601 |
#define GPIOTiva_PG_1 0x0602 |
#define GPIOTiva_PG_2 0x0604 |
#define GPIOTiva_PG_3 0x0608 |
#define GPIOTiva_PG_4 0x0610 |
#define GPIOTiva_PG_5 0x0620 |
#define GPIOTiva_PG_6 0x0640 |
#define GPIOTiva_PG_7 0x0680 |
#define GPIOTiva_PH_0 0x0701 |
#define GPIOTiva_PH_1 0x0702 |
#define GPIOTiva_PH_2 0x0704 |
#define GPIOTiva_PH_3 0x0708 |
#define GPIOTiva_PH_4 0x0710 |
#define GPIOTiva_PH_5 0x0720 |
#define GPIOTiva_PH_6 0x0740 |
#define GPIOTiva_PH_7 0x0780 |
#define GPIOTiva_PJ_0 0x0801 |
#define GPIOTiva_PJ_1 0x0802 |
#define GPIOTiva_PJ_2 0x0804 |
#define GPIOTiva_PJ_3 0x0808 |
#define GPIOTiva_PJ_4 0x0810 |
#define GPIOTiva_PJ_5 0x0820 |
#define GPIOTiva_PJ_6 0x0840 |
#define GPIOTiva_PJ_7 0x0880 |
#define GPIOTiva_PK_0 0x0901 |
#define GPIOTiva_PK_1 0x0902 |
#define GPIOTiva_PK_2 0x0904 |
#define GPIOTiva_PK_3 0x0908 |
#define GPIOTiva_PK_4 0x0910 |
#define GPIOTiva_PK_5 0x0920 |
#define GPIOTiva_PK_6 0x0940 |
#define GPIOTiva_PK_7 0x0980 |
#define GPIOTiva_PL_0 0x0A01 |
#define GPIOTiva_PL_1 0x0A02 |
#define GPIOTiva_PL_2 0x0A04 |
#define GPIOTiva_PL_3 0x0A08 |
#define GPIOTiva_PL_4 0x0A10 |
#define GPIOTiva_PL_5 0x0A20 |
#define GPIOTiva_PL_6 0x0A40 |
#define GPIOTiva_PL_7 0x0A80 |
#define GPIOTiva_PM_0 0x0B01 |
#define GPIOTiva_PM_1 0x0B02 |
#define GPIOTiva_PM_2 0x0B04 |
#define GPIOTiva_PM_3 0x0B08 |
#define GPIOTiva_PM_4 0x0B10 |
#define GPIOTiva_PM_5 0x0B20 |
#define GPIOTiva_PM_6 0x0B40 |
#define GPIOTiva_PM_7 0x0B80 |
#define GPIOTiva_PN_0 0x0C01 |
#define GPIOTiva_PN_1 0x0C02 |
#define GPIOTiva_PN_2 0x0C04 |
#define GPIOTiva_PN_3 0x0C08 |
#define GPIOTiva_PN_4 0x0C10 |
#define GPIOTiva_PN_5 0x0C20 |
#define GPIOTiva_PN_6 0x0C40 |
#define GPIOTiva_PN_7 0x0C80 |
typedef struct GPIOTiva_Config GPIOTiva_Config |
GPIO device specific driver configuration structure.