add eth driver for STM32 CL
git-svn-id: https://rt-thread.googlecode.com/svn/trunk@71 bbd45198-f89e-11dd-88c7-29a3b14d5316
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/*
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* File : eth_cl.c
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* This file is part of RT-Thread RTOS
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* COPYRIGHT (C) 2006 - 2009, RT-Thread Development Team
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*
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* The license and distribution terms for this file may be
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* found in the file LICENSE in this distribution or at
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* http://www.rt-thread.org/license/LICENSE
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*
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* Change Logs:
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* Date Author Notes
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* 2009-10-05 Bernard eth interface driver for STM32F107 CL
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*/
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#include <rtthread.h>
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#include "Libraries/STM32_ETH_Driver/inc/stm32_eth.h"
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#include <netif/ethernetif.h>
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#include "lwipopts.h"
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#define DP83848_PHY /* Ethernet pins mapped on STM3210C-EVAL Board */
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#define PHY_ADDRESS 0x01 /* Relative to STM3210C-EVAL Board */
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#define ETH_RXBUFNB 8
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#define ETH_TXBUFNB 2
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ETH_InitTypeDef ETH_InitStructure;
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ETH_DMADESCTypeDef DMARxDscrTab[ETH_RXBUFNB], DMATxDscrTab[ETH_TXBUFNB];
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rt_uint8_t Rx_Buff[ETH_RXBUFNB][ETH_MAX_PACKET_SIZE], Tx_Buff[ETH_TXBUFNB][ETH_MAX_PACKET_SIZE];
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#define MAX_ADDR_LEN 6
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struct rt_stm32_eth
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{
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/* inherit from ethernet device */
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struct eth_device parent;
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/* interface address info. */
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rt_uint8_t dev_addr[MAX_ADDR_LEN]; /* hw address */
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};
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static struct rt_stm32_eth stm32_eth_device;
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/* interrupt service routine */
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void rt_stm32_eth_isr(int irqno)
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{
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rt_uint32_t status;
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if (status) // if receive packet
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{
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rt_err_t result;
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/* a frame has been received */
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result = eth_device_ready(&(stm32_eth_device.parent));
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RT_ASSERT(result == RT_EOK);
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}
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if (status) // if finished packet transmission
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{
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}
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}
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/* RT-Thread Device Interface */
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/* initialize the interface */
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static rt_err_t rt_stm32_eth_init(rt_device_t dev)
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{
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vu32 Value = 0;
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/* Reset ETHERNET on AHB Bus */
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ETH_DeInit();
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/* Software reset */
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ETH_SoftwareReset();
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/* Wait for software reset */
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while(ETH_GetSoftwareResetStatus()==SET);
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/* ETHERNET Configuration ------------------------------------------------------*/
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/* Call ETH_StructInit if you don't like to configure all ETH_InitStructure parameter */
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ETH_StructInit(Ð_InitStructure);
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/* Fill ETH_InitStructure parametrs */
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/*------------------------ MAC -----------------------------------*/
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ETH_InitStructure.ETH_AutoNegotiation = ETH_AutoNegotiation_Enable ;
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ETH_InitStructure.ETH_Speed = ETH_Speed_100M;
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ETH_InitStructure.ETH_LoopbackMode = ETH_LoopbackMode_Disable;
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ETH_InitStructure.ETH_Mode = ETH_Mode_FullDuplex;
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ETH_InitStructure.ETH_RetryTransmission = ETH_RetryTransmission_Disable;
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ETH_InitStructure.ETH_AutomaticPadCRCStrip = ETH_AutomaticPadCRCStrip_Disable;
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ETH_InitStructure.ETH_ReceiveAll = ETH_ReceiveAll_Enable;
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ETH_InitStructure.ETH_BroadcastFramesReception = ETH_BroadcastFramesReception_Disable;
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ETH_InitStructure.ETH_PromiscuousMode = ETH_PromiscuousMode_Disable;
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ETH_InitStructure.ETH_MulticastFramesFilter = ETH_MulticastFramesFilter_Perfect;
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ETH_InitStructure.ETH_UnicastFramesFilter = ETH_UnicastFramesFilter_Perfect;
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/* Configure ETHERNET */
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Value = ETH_Init(Ð_InitStructure, PHY_ADDRESS);
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/* Initialize Tx Descriptors list: Chain Mode */
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ETH_DMATxDescChainInit(DMATxDscrTab, &Tx_Buff[0][0], ETH_TXBUFNB);
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/* Initialize Rx Descriptors list: Chain Mode */
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ETH_DMARxDescChainInit(DMARxDscrTab, &Rx_Buff[0][0], ETH_RXBUFNB);
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/* Enable MAC and DMA transmission and reception */
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ETH_Start();
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return RT_EOK;
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}
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static rt_err_t rt_stm32_eth_open(rt_device_t dev, rt_uint16_t oflag)
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{
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return RT_EOK;
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}
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static rt_err_t rt_stm32_eth_close(rt_device_t dev)
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{
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return RT_EOK;
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}
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static rt_size_t rt_stm32_eth_read(rt_device_t dev, rt_off_t pos, void* buffer, rt_size_t size)
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{
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rt_set_errno(-RT_ENOSYS);
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return 0;
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}
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static rt_size_t rt_stm32_eth_write (rt_device_t dev, rt_off_t pos, const void* buffer, rt_size_t size)
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{
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rt_set_errno(-RT_ENOSYS);
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return 0;
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}
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static rt_err_t rt_stm32_eth_control(rt_device_t dev, rt_uint8_t cmd, void *args)
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{
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switch(cmd)
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{
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case NIOCTL_GADDR:
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/* get mac address */
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if(args) rt_memcpy(args, stm32_eth_device.dev_addr, 6);
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else return -RT_ERROR;
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break;
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default :
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break;
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}
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return RT_EOK;
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}
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/* ethernet device interface */
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/* transmit packet. */
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rt_err_t rt_stm32_eth_tx( rt_device_t dev, struct pbuf* p)
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{
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struct pbuf* q;
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rt_uint32_t len;
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rt_uint8_t* ptr;
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for (q = p; q != NULL; q = q->next)
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{
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len = q->len;
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ptr = q->payload;
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/* write data to device */
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}
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return RT_EOK;
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}
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/* reception packet. */
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struct pbuf *rt_stm32_eth_rx(rt_device_t dev)
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{
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struct pbuf* p;
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rt_uint32_t len;
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/* init p pointer */
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p = RT_NULL;
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if (1) // if there is packet in device
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{
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/* get one packet length */
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len = 0; // packet length
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/* allocate buffer */
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p = pbuf_alloc(PBUF_LINK, len, PBUF_RAM);
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if (p != RT_NULL)
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{
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rt_uint8_t* data;
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struct pbuf* q;
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for (q = p; q != RT_NULL; q= q->next)
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{
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data = q->payload;
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len = q->len;
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/* read data from device */
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}
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}
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}
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else
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{
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/* restore interrupt */
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}
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return p;
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}
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void rt_hw_stm32_eth_init()
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{
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stm32_eth_device.parent.parent.init = rt_stm32_eth_init;
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stm32_eth_device.parent.parent.open = rt_stm32_eth_open;
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stm32_eth_device.parent.parent.close = rt_stm32_eth_close;
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stm32_eth_device.parent.parent.read = rt_stm32_eth_read;
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stm32_eth_device.parent.parent.write = rt_stm32_eth_write;
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stm32_eth_device.parent.parent.control = rt_stm32_eth_control;
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stm32_eth_device.parent.parent.private = RT_NULL;
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stm32_eth_device.parent.eth_rx = rt_stm32_eth_rx;
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stm32_eth_device.parent.eth_tx = rt_stm32_eth_tx;
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eth_device_init(&(stm32_eth_device.parent), "e0");
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}
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@ -5,8 +5,7 @@
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#define GPIO_LED GPIOF
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#define GPIO_Pin_LED GPIO_Pin_6 | GPIO_Pin_7 | GPIO_Pin_8 | GPIO_Pin_9
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static const rt_uint16_t led_map[] = {GPIO_Pin_6, GPIO_Pin_7, GPIO_Pin_8, GPIO_Pin_9
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};
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static const rt_uint16_t led_map[] = {GPIO_Pin_6, GPIO_Pin_7, GPIO_Pin_8, GPIO_Pin_9};
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static rt_uint8_t led_inited = 0;
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static void GPIO_Configuration(void)
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