/*
?*?ESPRSSIF?MIT?License
?*
?*?Copyright?（c）?2015?
?*
?*?Permission?is?hereby?granted?for?use?on?ESPRESSIF?SYSTEMS?ESP8266?only?in?which?case
?*?it?is?free?of?charge?to?any?person?obtaining?a?copy?of?this?software?and?associated
?*?documentation?files?（the?“Software“）?to?deal?in?the?Software?without?restriction?including
?*?without?limitation?the?rights?to?use?copy?modify?merge?publish?distribute?sublicense
?*?and/or?sell?copies?of?the?Software?and?to?permit?persons?to?whom?the?Software?is?furnished
?*?to?do?so?subject?to?the?following?conditions:
?*?
?*?The?above?copyright?notice?and?this?permission?notice?shall?be?included?in?all?copies?or
?*?substantial?portions?of?the?Software.
?*?
?*?THE?SOFTWARE?IS?PROVIDED?“AS?IS“?WITHOUT?WARRANTY?OF?ANY?KIND?EXPRESS?OR
?*?IMPLIED?INCLUDING?BUT?NOT?LIMITED?TO?THE?WARRANTIES?OF?MERCHANTABILITY?FITNESS
?*?FOR?A?PARTICULAR?PURPOSE?AND?NONINFRINGEMENT.?IN?NO?EVENT?SHALL?THE?AUTHORS?OR
?*?COPYRIGHT?HOLDERS?BE?LIABLE?FOR?ANY?CLAIM?DAMAGES?OR?OTHER?LIABILITY?WHETHER
?*?IN?AN?ACTION?OF?CONTRACT?TORT?OR?OTHERWISE?ARISING?FROM?OUT?OF?OR?IN
?*?CONNECTION?WITH?THE?SOFTWARE?OR?THE?USE?OR?OTHER?DEALINGS?IN?THE?SOFTWARE.
?*
?*/

#include?“espressif/esp_common.h“
#include?“freertos/portmacro.h“

#include?“gpio.h“

void?gpio_config（GPIO_ConfigTypeDef?*pGPIOConfig）
{
????uint16?gpio_pin_mask?=?pGPIOConfig->GPIO_Pin;
????uint32?io_reg;
????uint8?io_num?=?0;
????uint32?pin_reg;

????if?（pGPIOConfig->GPIO_Mode?==?GPIO_Mode_Input）?{
????????GPIO_AS_INPUT（gpio_pin_mask）;
????}?else?if?（pGPIOConfig->GPIO_Mode?==?GPIO_Mode_Output）?{
????????GPIO_AS_OUTPUT（gpio_pin_mask）;
????}

????do?{
????????if?（（gpio_pin_mask?>>?io_num）?&?0x1）?{
????????????io_reg?=?GPIO_PIN_REG（io_num）;

????????????if?（（0x1?<????????????????PIN_FUNC_SELECT（io_reg?0）;
????????????}?else?{
????????????????PIN_FUNC_SELECT（io_reg?3）;
????????????}

????????????if?（pGPIOConfig->GPIO_Pullup）?{
????????????????PIN_PULLUP_EN（io_reg）;
????????????}?else?{
????????????????PIN_PULLUP_DIS（io_reg）;
????????????}

????????????if?（pGPIOConfig->GPIO_Mode?==?GPIO_Mode_Out_OD）?{
????????????????portENTER_CRITICAL（）;

????????????????pin_reg?=?GPIO_REG_READ（GPIO_PIN_ADDR（io_num））;
????????????????pin_reg?&=?（~GPIO_PIN_DRIVER_MASK）;
????????????????pin_reg?|=?（GPIO_PAD_DRIVER_ENABLE?<????????????????GPIO_REG_WRITE（GPIO_PIN_ADDR（io_num）?pin_reg）;

????????????????portEXIT_CRITICAL（）;
????????????}?else?if?（pGPIOConfig->GPIO_Mode?==?GPIO_Mode_Sigma_Delta）?{
????????????????portENTER_CRITICAL（）;

????????????????pin_reg?=?GPIO_REG_READ（GPIO_PIN_ADDR（io_num））;
????????????????pin_reg?&=?（~GPIO_PIN_SOURCE_MASK）;
????????????????pin_reg?|=?（0x1?<????????????????GPIO_REG_WRITE（GPIO_PIN_ADDR（io_num）?pin_reg）;
????????????????GPIO_REG_WRITE（GPIO_SIGMA_DELTA_ADDRESS?SIGMA_DELTA_ENABLE）;

????????????????port

?屬性????????????大小?????日期????時間???名稱
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?????文件??????38144??2016-01-19?13:30??model?two-dimension?code.jpg

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????????????????38144????????????????????1