1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
34
35
36
37
40
45
46
47
52
53
54
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
137
138
139
140
141
142
143
144
147
148
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
244
/* ... */
#include "main.h"
#include "lwip/init.h"
#include "lwip/netif.h"
#include "lwip/timeouts.h"
#include "netif/etharp.h"
#include "ethernetif.h"
#include "app_ethernet.h"
#include "tcp_echoserver.h"
8 includes#ifdef USE_LCD
#include "lcd_log.h"
#endif
Includes
struct netif gnetif;
Private variables
static void SystemClock_Config(void);
static void BSP_Config(void);
static void Netif_Config(void);
Private function prototypes
/* ... */
int main(void)
{
/* ... */
HAL_Init();
SystemClock_Config();
BSP_Config();
lwip_init();
Netif_Config();
tcp_echoserver_init();
while (1)
{
/* ... */
ethernetif_input(&gnetif);
sys_check_timeouts();
#if LWIP_NETIF_LINK_CALLBACK
Ethernet_Link_Periodic_Handle(&gnetif);
#endif
#if LWIP_DHCP
DHCP_Periodic_Handle(&gnetif);
#endif
}while (1) { ... }
}{ ... }
/* ... */
static void BSP_Config(void)
{
BSP_LED_Init(LED1);
BSP_LED_Init(LED2);
#ifdef USE_LCD
BSP_LCD_Init();
BSP_LCD_LayerDefaultInit(1, LCD_FB_START_ADDRESS);
BSP_LCD_SelectLayer(1);
BSP_LCD_SetFont(&LCD_DEFAULT_FONT);
LCD_LOG_Init();
LCD_LOG_SetHeader((uint8_t *)"TCP Echo Server Application");
LCD_LOG_SetFooter((uint8_t *)"STM324x9I-EVAL board");
LCD_UsrLog (" State: Ethernet Initialization ...\n");/* ... */
#endif
}{ ... }
/* ... */
static void Netif_Config(void)
{
ip_addr_t ipaddr;
ip_addr_t netmask;
ip_addr_t gw;
#if LWIP_DHCP
ip_addr_set_zero_ip4(&ipaddr);
ip_addr_set_zero_ip4(&netmask);
ip_addr_set_zero_ip4(&gw);/* ... */
#else
IP4_ADDR(&ipaddr, IP_ADDR0, IP_ADDR1, IP_ADDR2, IP_ADDR3);
IP4_ADDR(&netmask, NETMASK_ADDR0, NETMASK_ADDR1 , NETMASK_ADDR2, NETMASK_ADDR3);
IP4_ADDR(&gw, GW_ADDR0, GW_ADDR1, GW_ADDR2, GW_ADDR3);
/* ... */
#endif
netif_add(&gnetif, &ipaddr, &netmask, &gw, NULL, ðernetif_init, ðernet_input);
netif_set_default(&gnetif);
ethernet_link_status_updated(&gnetif);
#if LWIP_NETIF_LINK_CALLBACK
netif_set_link_callback(&gnetif, ethernet_link_status_updated);
#endif
}{ ... }
/* ... */
static void SystemClock_Config(void)
{
RCC_ClkInitTypeDef RCC_ClkInitStruct;
RCC_OscInitTypeDef RCC_OscInitStruct;
__HAL_RCC_PWR_CLK_ENABLE();
/* ... */
__HAL_PWR_VOLTAGESCALING_CONFIG(PWR_REGULATOR_VOLTAGE_SCALE1);
RCC_OscInitStruct.OscillatorType = RCC_OSCILLATORTYPE_HSE;
RCC_OscInitStruct.HSEState = RCC_HSE_ON;
RCC_OscInitStruct.PLL.PLLState = RCC_PLL_ON;
RCC_OscInitStruct.PLL.PLLSource = RCC_PLLSOURCE_HSE;
RCC_OscInitStruct.PLL.PLLM = 25;
RCC_OscInitStruct.PLL.PLLN = 360;
RCC_OscInitStruct.PLL.PLLP = RCC_PLLP_DIV2;
RCC_OscInitStruct.PLL.PLLQ = 7;
HAL_RCC_OscConfig(&RCC_OscInitStruct);
HAL_PWREx_EnableOverDrive();
/* ... */
RCC_ClkInitStruct.ClockType = (RCC_CLOCKTYPE_SYSCLK | RCC_CLOCKTYPE_HCLK | RCC_CLOCKTYPE_PCLK1 | RCC_CLOCKTYPE_PCLK2);
RCC_ClkInitStruct.SYSCLKSource = RCC_SYSCLKSOURCE_PLLCLK;
RCC_ClkInitStruct.AHBCLKDivider = RCC_SYSCLK_DIV1;
RCC_ClkInitStruct.APB1CLKDivider = RCC_HCLK_DIV4;
RCC_ClkInitStruct.APB2CLKDivider = RCC_HCLK_DIV2;
HAL_RCC_ClockConfig(&RCC_ClkInitStruct, FLASH_LATENCY_5);
}{ ... }
#ifdef USE_FULL_ASSERT
/* ... */
void assert_failed(uint8_t* file, uint32_t line)
{
/* ... */
while (1)
{
}while (1) { ... }
}assert_failed (uint8_t* file, uint32_t line) { ... }
/* ... */#endifPrivate functions