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Dependents:   espyun espyun

Fork of WIZnetInterface by jiang hao

arch/int/W7500x_toe.h@30:6feeaebad180, 2016-11-04 (annotated)

Committer:
jh_ndm
Date:
Fri Nov 04 02:28:28 2016 +0000
Revision:
30:6feeaebad180
Parent:
14:2101ab5ee40f
Child:
32:26fc4b6c5784
http to esp

Who changed what in which revision?

UserRevisionLine numberNew contents of line
Soohwan Kim 0:6f28332c466f 1 /* Copyright (C) 2012 mbed.org, MIT License
Soohwan Kim 0:6f28332c466f 2 *
Soohwan Kim 0:6f28332c466f 3 * Permission is hereby granted, free of charge, to any person obtaining a copy of this software
Soohwan Kim 0:6f28332c466f 4 * and associated documentation files (the "Software"), to deal in the Software without restriction,
Soohwan Kim 0:6f28332c466f 5 * including without limitation the rights to use, copy, modify, merge, publish, distribute,
Soohwan Kim 0:6f28332c466f 6 * sublicense, and/or sell copies of the Software, and to permit persons to whom the Software is
Soohwan Kim 0:6f28332c466f 7 * furnished to do so, subject to the following conditions:
Soohwan Kim 0:6f28332c466f 8 *
Soohwan Kim 0:6f28332c466f 9 * The above copyright notice and this permission notice shall be included in all copies or
Soohwan Kim 0:6f28332c466f 10 * substantial portions of the Software.
Soohwan Kim 0:6f28332c466f 11 *
Soohwan Kim 0:6f28332c466f 12 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR IMPLIED, INCLUDING
Soohwan Kim 0:6f28332c466f 13 * BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
Soohwan Kim 0:6f28332c466f 14 * NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM,
Soohwan Kim 0:6f28332c466f 15 * DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
Soohwan Kim 0:6f28332c466f 16 * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
Soohwan Kim 0:6f28332c466f 17 *
Soohwan Kim 0:6f28332c466f 18 */
Soohwan Kim 0:6f28332c466f 19 #pragma once
Soohwan Kim 0:6f28332c466f 20
Soohwan Kim 0:6f28332c466f 21 #include "mbed.h"
Soohwan Kim 0:6f28332c466f 22 #include "mbed_debug.h"
Soohwan Kim 0:6f28332c466f 23
Soohwan Kim 0:6f28332c466f 24 #define TEST_ASSERT(A) while(!(A)){debug("\n\n%s@%d %s ASSERT!\n\n",__PRETTY_FUNCTION__,__LINE__,#A);exit(1);};
Soohwan Kim 0:6f28332c466f 25
Soohwan Kim 0:6f28332c466f 26 #define DEFAULT_WAIT_RESP_TIMEOUT 500
Soohwan Kim 0:6f28332c466f 27
Soohwan Kim 0:6f28332c466f 28
Soohwan Kim 0:6f28332c466f 29 #define MAX_SOCK_NUM 8
Soohwan Kim 0:6f28332c466f 30
Soohwan Kim 0:6f28332c466f 31 // Peripheral base address
Soohwan Kim 0:6f28332c466f 32 #define W7500x_WZTOE_BASE (0x46000000)
Soohwan Kim 0:6f28332c466f 33 #define W7500x_TXMEM_BASE (W7500x_WZTOE_BASE + 0x00020000)
Soohwan Kim 0:6f28332c466f 34 #define W7500x_RXMEM_BASE (W7500x_WZTOE_BASE + 0x00030000)
Soohwan Kim 0:6f28332c466f 35 // Common register
Soohwan Kim 0:6f28332c466f 36 #define MR (0x2300)
Soohwan Kim 0:6f28332c466f 37 #define GAR (0x6008)
Soohwan Kim 0:6f28332c466f 38 #define SUBR (0x600C)
Soohwan Kim 0:6f28332c466f 39 #define SHAR (0x6000)
Soohwan Kim 0:6f28332c466f 40 #define SIPR (0x6010)
Soohwan Kim 8:4c02de1dbf3a 41
Soohwan Kim 0:6f28332c466f 42 // Added Common register @W7500
Soohwan Kim 0:6f28332c466f 43 #define TIC100US (0x2000)
Soohwan Kim 0:6f28332c466f 44
Soohwan Kim 0:6f28332c466f 45 // Socket register
Soohwan Kim 0:6f28332c466f 46 #define Sn_MR (0x0000)
Soohwan Kim 0:6f28332c466f 47 #define Sn_CR (0x0010)
Soohwan Kim 0:6f28332c466f 48 #define Sn_IR (0x0020) //--Sn_ISR
Soohwan Kim 0:6f28332c466f 49 #define Sn_SR (0x0030)
Soohwan Kim 0:6f28332c466f 50 #define Sn_PORT (0x0114)
Soohwan Kim 0:6f28332c466f 51 #define Sn_DIPR (0x0124)
Soohwan Kim 0:6f28332c466f 52 #define Sn_DPORT (0x0120)
Soohwan Kim 0:6f28332c466f 53 #define Sn_RXBUF_SIZE (0x0200)
Soohwan Kim 0:6f28332c466f 54 #define Sn_TXBUF_SIZE (0x0220)
Soohwan Kim 0:6f28332c466f 55 #define Sn_TX_FSR (0x0204)
Soohwan Kim 0:6f28332c466f 56 #define Sn_TX_WR (0x020C)
Soohwan Kim 0:6f28332c466f 57 #define Sn_RX_RSR (0x0224)
Soohwan Kim 0:6f28332c466f 58 #define Sn_RX_RD (0x0228)
Soohwan Kim 0:6f28332c466f 59 // added Socket register @W7500
Soohwan Kim 0:6f28332c466f 60 #define Sn_ICR (0x0028)
Soohwan Kim 0:6f28332c466f 61 enum PHYMode {
Soohwan Kim 0:6f28332c466f 62 AutoNegotiate = 0,
Soohwan Kim 0:6f28332c466f 63 HalfDuplex10 = 1,
Soohwan Kim 0:6f28332c466f 64 FullDuplex10 = 2,
Soohwan Kim 0:6f28332c466f 65 HalfDuplex100 = 3,
Soohwan Kim 0:6f28332c466f 66 FullDuplex100 = 4,
Soohwan Kim 0:6f28332c466f 67 };
Soohwan Kim 0:6f28332c466f 68
Soohwan Kim 0:6f28332c466f 69 //bool plink(int wait_time_ms= 3*1000);
Soohwan Kim 0:6f28332c466f 70
Soohwan Kim 0:6f28332c466f 71 class WIZnet_Chip {
Soohwan Kim 0:6f28332c466f 72 public:
Soohwan Kim 0:6f28332c466f 73 enum Protocol {
Soohwan Kim 0:6f28332c466f 74 CLOSED = 0,
Soohwan Kim 0:6f28332c466f 75 TCP = 1,
Soohwan Kim 0:6f28332c466f 76 UDP = 2,
Soohwan Kim 0:6f28332c466f 77 };
Soohwan Kim 0:6f28332c466f 78
Soohwan Kim 0:6f28332c466f 79 enum Command {
Soohwan Kim 0:6f28332c466f 80 OPEN = 0x01,
Soohwan Kim 0:6f28332c466f 81 LISTEN = 0x02,
Soohwan Kim 0:6f28332c466f 82 CONNECT = 0x04,
Soohwan Kim 0:6f28332c466f 83 DISCON = 0x08,
Soohwan Kim 0:6f28332c466f 84 CLOSE = 0x10,
Soohwan Kim 0:6f28332c466f 85 SEND = 0x20,
Soohwan Kim 0:6f28332c466f 86 SEND_MAC = 0x21,
Soohwan Kim 0:6f28332c466f 87 SEND_KEEP = 0x22,
Soohwan Kim 0:6f28332c466f 88 RECV = 0x40,
Soohwan Kim 0:6f28332c466f 89
Soohwan Kim 0:6f28332c466f 90 };
Soohwan Kim 0:6f28332c466f 91
Soohwan Kim 0:6f28332c466f 92 enum Interrupt {
Soohwan Kim 0:6f28332c466f 93 INT_CON = 0x01,
Soohwan Kim 0:6f28332c466f 94 INT_DISCON = 0x02,
Soohwan Kim 0:6f28332c466f 95 INT_RECV = 0x04,
Soohwan Kim 0:6f28332c466f 96 INT_TIMEOUT = 0x08,
Soohwan Kim 0:6f28332c466f 97 INT_SEND_OK = 0x10,
Soohwan Kim 0:6f28332c466f 98 };
Soohwan Kim 0:6f28332c466f 99 enum Status {
Soohwan Kim 0:6f28332c466f 100 SOCK_CLOSED = 0x00,
Soohwan Kim 0:6f28332c466f 101 SOCK_INIT = 0x13,
Soohwan Kim 0:6f28332c466f 102 SOCK_LISTEN = 0x14,
Soohwan Kim 0:6f28332c466f 103 SOCK_SYNSENT = 0x15,
Soohwan Kim 0:6f28332c466f 104 SOCK_ESTABLISHED = 0x17,
Soohwan Kim 0:6f28332c466f 105 SOCK_CLOSE_WAIT = 0x1c,
Soohwan Kim 0:6f28332c466f 106 SOCK_UDP = 0x22,
Soohwan Kim 0:6f28332c466f 107 };
Soohwan Kim 0:6f28332c466f 108 enum Mode {
Soohwan Kim 0:6f28332c466f 109 MR_RST = 0x80,
Soohwan Kim 0:6f28332c466f 110 MR_WOL = 0x20,
Soohwan Kim 0:6f28332c466f 111 MR_PB = 0x10,
Soohwan Kim 0:6f28332c466f 112 MR_FARP = 0x02,
Soohwan Kim 0:6f28332c466f 113 };
Soohwan Kim 0:6f28332c466f 114
Soohwan Kim 0:6f28332c466f 115 WIZnet_Chip();
Soohwan Kim 0:6f28332c466f 116
Soohwan Kim 0:6f28332c466f 117 /*
Soohwan Kim 8:4c02de1dbf3a 118 * Set MAC Address to W7500x_TOE
Soohwan Kim 8:4c02de1dbf3a 119 *
Soohwan Kim 8:4c02de1dbf3a 120 * @return true if connected, false otherwise
Soohwan Kim 8:4c02de1dbf3a 121 */
Soohwan Kim 8:4c02de1dbf3a 122 bool setmac();
Soohwan Kim 8:4c02de1dbf3a 123
Soohwan Kim 8:4c02de1dbf3a 124 /*
Soohwan Kim 0:6f28332c466f 125 * Connect the W7500 WZTOE to the ssid contained in the constructor.
Soohwan Kim 0:6f28332c466f 126 *
Soohwan Kim 0:6f28332c466f 127 * @return true if connected, false otherwise
Soohwan Kim 0:6f28332c466f 128 */
Soohwan Kim 0:6f28332c466f 129 bool setip();
Soohwan Kim 0:6f28332c466f 130
jh_ndm 30:6feeaebad180 131 bool disconnect();
Soohwan Kim 0:6f28332c466f 132 /*
Soohwan Kim 0:6f28332c466f 133 * Open a tcp connection with the specified host on the specified port
Soohwan Kim 0:6f28332c466f 134 *
Soohwan Kim 0:6f28332c466f 135 * @param host host (can be either an ip address or a name. If a name is provided, a dns request will be established)
Soohwan Kim 0:6f28332c466f 136 * @param port port
Soohwan Kim 0:6f28332c466f 137 * @ returns true if successful
Soohwan Kim 0:6f28332c466f 138 */
jh_ndm 30:6feeaebad180 139 bool connect(int socket, const char * host, int port, int timeout_ms = 3*1000);
Soohwan Kim 0:6f28332c466f 140
Soohwan Kim 0:6f28332c466f 141 /*
Soohwan Kim 0:6f28332c466f 142 * Set the protocol (UDP or TCP)
Soohwan Kim 0:6f28332c466f 143 *
Soohwan Kim 0:6f28332c466f 144 * @param p protocol
Soohwan Kim 0:6f28332c466f 145 * @ returns true if successful
Soohwan Kim 0:6f28332c466f 146 */
Soohwan Kim 0:6f28332c466f 147 bool setProtocol(int socket, Protocol p);
Soohwan Kim 0:6f28332c466f 148
Soohwan Kim 0:6f28332c466f 149 /*
Soohwan Kim 0:6f28332c466f 150 * Reset the W7500 WZTOE
Soohwan Kim 0:6f28332c466f 151 */
Soohwan Kim 0:6f28332c466f 152 void reset();
Soohwan Kim 0:6f28332c466f 153
Soohwan Kim 0:6f28332c466f 154 int wait_readable(int socket, int wait_time_ms, int req_size = 0);
Soohwan Kim 0:6f28332c466f 155
Soohwan Kim 0:6f28332c466f 156 int wait_writeable(int socket, int wait_time_ms, int req_size = 0);
Soohwan Kim 0:6f28332c466f 157
Soohwan Kim 0:6f28332c466f 158 /*
Soohwan Kim 0:6f28332c466f 159 * Check if an ethernet link is pressent or not.
Soohwan Kim 0:6f28332c466f 160 *
Soohwan Kim 0:6f28332c466f 161 * @returns true if successful
Soohwan Kim 0:6f28332c466f 162 */
Soohwan Kim 0:6f28332c466f 163 bool link(int wait_time_ms= 3*1000);
Soohwan Kim 0:6f28332c466f 164
Soohwan Kim 0:6f28332c466f 165 /*
Soohwan Kim 0:6f28332c466f 166 * Sets the speed and duplex parameters of an ethernet link.
Soohwan Kim 0:6f28332c466f 167 *
Soohwan Kim 0:6f28332c466f 168 * @returns true if successful
Soohwan Kim 0:6f28332c466f 169 */
Soohwan Kim 0:6f28332c466f 170 void set_link(PHYMode phymode);
Soohwan Kim 0:6f28332c466f 171
Soohwan Kim 0:6f28332c466f 172 /*
Soohwan Kim 0:6f28332c466f 173 * Check if a tcp link is active
Soohwan Kim 0:6f28332c466f 174 *
Soohwan Kim 0:6f28332c466f 175 * @returns true if successful
Soohwan Kim 0:6f28332c466f 176 */
Soohwan Kim 0:6f28332c466f 177 bool is_connected(int socket);
Soohwan Kim 0:6f28332c466f 178
Soohwan Kim 0:6f28332c466f 179 /*
Soohwan Kim 0:6f28332c466f 180 * Close a tcp connection
Soohwan Kim 0:6f28332c466f 181 *
Soohwan Kim 0:6f28332c466f 182 * @ returns true if successful
Soohwan Kim 0:6f28332c466f 183 */
Soohwan Kim 0:6f28332c466f 184 bool close(int socket);
Soohwan Kim 0:6f28332c466f 185
Soohwan Kim 0:6f28332c466f 186 /*
Soohwan Kim 0:6f28332c466f 187 * @param str string to be sent
Soohwan Kim 0:6f28332c466f 188 * @param len string length
Soohwan Kim 0:6f28332c466f 189 */
Soohwan Kim 0:6f28332c466f 190 int send(int socket, const char * str, int len);
Soohwan Kim 0:6f28332c466f 191
Soohwan Kim 0:6f28332c466f 192 int recv(int socket, char* buf, int len);
Soohwan Kim 0:6f28332c466f 193
Soohwan Kim 0:6f28332c466f 194 /*
Soohwan Kim 0:6f28332c466f 195 * Return true if the module is using dhcp
Soohwan Kim 0:6f28332c466f 196 *
Soohwan Kim 0:6f28332c466f 197 * @returns true if the module is using dhcp
Soohwan Kim 0:6f28332c466f 198 */
Soohwan Kim 0:6f28332c466f 199 bool isDHCP() {
Soohwan Kim 0:6f28332c466f 200 return dhcp;
Soohwan Kim 0:6f28332c466f 201 }
Soohwan Kim 0:6f28332c466f 202
Soohwan Kim 0:6f28332c466f 203 bool gethostbyname(const char* host, uint32_t* ip);
Soohwan Kim 0:6f28332c466f 204
Soohwan Kim 0:6f28332c466f 205 static WIZnet_Chip * getInstance() {
Soohwan Kim 0:6f28332c466f 206 return inst;
Soohwan Kim 0:6f28332c466f 207 };
Soohwan Kim 0:6f28332c466f 208
Soohwan Kim 0:6f28332c466f 209 int new_socket();
Soohwan Kim 0:6f28332c466f 210 uint16_t new_port();
Soohwan Kim 0:6f28332c466f 211
Soohwan Kim 0:6f28332c466f 212 void scmd(int socket, Command cmd);
Soohwan Kim 0:6f28332c466f 213
Soohwan Kim 0:6f28332c466f 214 template<typename T>
Soohwan Kim 0:6f28332c466f 215 void sreg(int socket, uint16_t addr, T data) {
Soohwan Kim 0:6f28332c466f 216 reg_wr<T>(addr, (uint8_t)(0x01+(socket<<2)), data);
Soohwan Kim 0:6f28332c466f 217 }
Soohwan Kim 0:6f28332c466f 218
Soohwan Kim 0:6f28332c466f 219 template<typename T>
Soohwan Kim 0:6f28332c466f 220 T sreg(int socket, uint16_t addr) {
Soohwan Kim 0:6f28332c466f 221 return reg_rd<T>(addr, (uint8_t)(0x01+(socket<<2)));
Soohwan Kim 0:6f28332c466f 222 }
Soohwan Kim 0:6f28332c466f 223
Soohwan Kim 0:6f28332c466f 224 template<typename T>
Soohwan Kim 0:6f28332c466f 225 void reg_wr(uint16_t addr, T data) {
Soohwan Kim 0:6f28332c466f 226 return reg_wr(addr, 0x00, data);
Soohwan Kim 0:6f28332c466f 227 }
Soohwan Kim 0:6f28332c466f 228
Soohwan Kim 0:6f28332c466f 229 template<typename T>
Soohwan Kim 0:6f28332c466f 230 void reg_wr(uint16_t addr, uint8_t cb, T data) {
Soohwan Kim 0:6f28332c466f 231 uint8_t buf[sizeof(T)];
Soohwan Kim 0:6f28332c466f 232 *reinterpret_cast<T*>(buf) = data;
Soohwan Kim 0:6f28332c466f 233 /*
Soohwan Kim 0:6f28332c466f 234 for(int i = 0; i < sizeof(buf)/2; i++) { // Little Endian to Big Endian
Soohwan Kim 0:6f28332c466f 235 uint8_t t = buf[i];
Soohwan Kim 0:6f28332c466f 236 buf[i] = buf[sizeof(buf)-1-i];
Soohwan Kim 0:6f28332c466f 237 buf[sizeof(buf)-1-i] = t;
Soohwan Kim 0:6f28332c466f 238 }
Soohwan Kim 0:6f28332c466f 239 */
Soohwan Kim 0:6f28332c466f 240 for(int i = 0; i < sizeof(buf); i++) { // Little Endian to Big Endian
Soohwan Kim 0:6f28332c466f 241 *(volatile uint8_t *)(W7500x_WZTOE_BASE + (uint32_t)((cb<<16)+addr)+i) = buf[i];
Soohwan Kim 0:6f28332c466f 242 }
Soohwan Kim 0:6f28332c466f 243 }
Soohwan Kim 0:6f28332c466f 244
Soohwan Kim 0:6f28332c466f 245 template<typename T>
Soohwan Kim 0:6f28332c466f 246 T reg_rd(uint16_t addr) {
Soohwan Kim 0:6f28332c466f 247 return reg_rd<T>(addr, (uint8_t)(0x00));
Soohwan Kim 0:6f28332c466f 248 }
Soohwan Kim 0:6f28332c466f 249
Soohwan Kim 0:6f28332c466f 250 template<typename T>
Soohwan Kim 0:6f28332c466f 251 T reg_rd(uint16_t addr, uint8_t cb) {
embeddist 14:2101ab5ee40f 252 uint8_t buf[sizeof(T)] = {0,};
Soohwan Kim 0:6f28332c466f 253 for(int i = 0; i < sizeof(buf); i++) { // Little Endian to Big Endian
Soohwan Kim 0:6f28332c466f 254 buf[i] = *(volatile uint8_t *)(W7500x_WZTOE_BASE + (uint32_t)((cb<<16)+addr)+i);
Soohwan Kim 0:6f28332c466f 255 }
Soohwan Kim 0:6f28332c466f 256 /*
Soohwan Kim 0:6f28332c466f 257 for(int i = 0; i < sizeof(buf)/2; i++) { // Big Endian to Little Endian
Soohwan Kim 0:6f28332c466f 258 uint8_t t = buf[i];
Soohwan Kim 0:6f28332c466f 259 buf[i] = buf[sizeof(buf)-1-i];
Soohwan Kim 0:6f28332c466f 260 buf[sizeof(buf)-1-i] = t;
Soohwan Kim 0:6f28332c466f 261 }
Soohwan Kim 0:6f28332c466f 262 */
Soohwan Kim 0:6f28332c466f 263 return *reinterpret_cast<T*>(buf);
Soohwan Kim 0:6f28332c466f 264 }
Soohwan Kim 0:6f28332c466f 265
embeddist 14:2101ab5ee40f 266 void reg_rd_mac(uint16_t addr, uint8_t* data);
embeddist 14:2101ab5ee40f 267
embeddist 14:2101ab5ee40f 268 void reg_wr_ip(uint16_t addr, uint8_t cb, const char* ip);
Soohwan Kim 0:6f28332c466f 269
embeddist 14:2101ab5ee40f 270 void sreg_ip(int socket, uint16_t addr, const char* ip);
Soohwan Kim 0:6f28332c466f 271
embeddist 14:2101ab5ee40f 272 int ethernet_link(void);
embeddist 14:2101ab5ee40f 273
embeddist 14:2101ab5ee40f 274 void ethernet_set_link(int speed, int duplex);
embeddist 14:2101ab5ee40f 275
Soohwan Kim 0:6f28332c466f 276
Soohwan Kim 0:6f28332c466f 277 protected:
Soohwan Kim 0:6f28332c466f 278 uint8_t mac[6];
Soohwan Kim 0:6f28332c466f 279 uint32_t ip;
Soohwan Kim 0:6f28332c466f 280 uint32_t netmask;
Soohwan Kim 0:6f28332c466f 281 uint32_t gateway;
Soohwan Kim 0:6f28332c466f 282 uint32_t dnsaddr;
Soohwan Kim 0:6f28332c466f 283 bool dhcp;
Soohwan Kim 0:6f28332c466f 284
Soohwan Kim 0:6f28332c466f 285 static WIZnet_Chip* inst;
Soohwan Kim 0:6f28332c466f 286
Soohwan Kim 0:6f28332c466f 287 void reg_wr_mac(uint16_t addr, uint8_t* data) {
Soohwan Kim 0:6f28332c466f 288 *(volatile uint8_t *)(W7500x_WZTOE_BASE + (uint32_t)(addr+3)) = data[0] ;
Soohwan Kim 0:6f28332c466f 289 *(volatile uint8_t *)(W7500x_WZTOE_BASE + (uint32_t)(addr+2)) = data[1] ;
Soohwan Kim 0:6f28332c466f 290 *(volatile uint8_t *)(W7500x_WZTOE_BASE + (uint32_t)(addr+1)) = data[2] ;
Soohwan Kim 0:6f28332c466f 291 *(volatile uint8_t *)(W7500x_WZTOE_BASE + (uint32_t)(addr+0)) = data[3] ;
Soohwan Kim 0:6f28332c466f 292 *(volatile uint8_t *)(W7500x_WZTOE_BASE + (uint32_t)(addr+7)) = data[4] ;
Soohwan Kim 0:6f28332c466f 293 *(volatile uint8_t *)(W7500x_WZTOE_BASE + (uint32_t)(addr+6)) = data[5] ;
Soohwan Kim 0:6f28332c466f 294 }
Soohwan Kim 0:6f28332c466f 295 };
Soohwan Kim 0:6f28332c466f 296
Soohwan Kim 0:6f28332c466f 297 extern uint32_t str_to_ip(const char* str);
Soohwan Kim 0:6f28332c466f 298 extern void printfBytes(char* str, uint8_t* buf, int len);
Soohwan Kim 0:6f28332c466f 299 extern void printHex(uint8_t* buf, int len);
Soohwan Kim 0:6f28332c466f 300 extern void debug_hex(uint8_t* buf, int len);