ZYNQ中GPIO函数详解汇总

前言

ZYNQ在PS端有基本完备的函数库，但是相关学习文档或资料中并未像ARM一样对这些函数的功能进行详细的解释，这篇文章就是想在学习过程中将GPIO相关的函数随手总结下来。

GPIO相关函数汇总

s32 XGpioPs_CfgInitialize(XGpioPs *InstancePtr, XGpioPs_Config *ConfigPtr,u32 EffectiveAddr)

{

s32 Status = XST_SUCCESS;

u8 i;

Xil_AssertNonvoid(InstancePtr != NULL);

Xil_AssertNonvoid(ConfigPtr != NULL);

Xil_AssertNonvoid(EffectiveAddr != (u32)0);

InstancePtr->IsReady = 0U;

InstancePtr->GpioConfig.BaseAddr = EffectiveAddr;

InstancePtr->GpioConfig.DeviceId = ConfigPtr->DeviceId;

InstancePtr->Handler = (XGpioPs_Handler)StubHandler;

InstancePtr->Platform = XGetPlatform_Info();

if (InstancePtr->Platform == XPLAT_ZYNQ_ULTRA_MP) {

InstancePtr->MaxPinNum = (u32)174;

InstancePtr->MaxBanks = (u8)6;

} else {