遮天,千年殇,盗墓笔记

本文來源電子發燒友社區，作者：趙杰，帖子地址：https://bbs.elecfans.com/jishu_2293164_1_1.html

拿到躍昉科技BF2開發板有段時間，前面測試了一個demo后停了一段時間，雖然躍昉的技術支持很到位，但是整體感覺這款開發板應用過程中有很多的限制，因此也耽擱下來了。
當初申請這塊板子的時候也是想測試WiFi的，但是嘗試了幾次感覺其使用方面不太方便，尤其是代碼編寫方面，感覺很復雜，因此先完成其WiFi的Demo測試，即Customer_App下的lf686_demo_wifi例程。
一、代碼編譯及下載
使用VSCode查看代碼，并用MSYS2編譯的，由于沒改什么核心代碼，編譯也比較簡單。
1、在msys2中進入到lf686_demo_wifi目錄后，輸入./genromap進行編譯

正常情況下，直接完成編譯

生成后的文件在該目錄的build_out目錄下。
2、在tools目錄下的flash_tools中打開LFFlashEnv進行燒寫
選擇前面build_out目錄下的Bin文件

燒寫時需要把IO8拉到HI，然后復位后下載

三、運行結果
打開串口sscom，設置波特率2000000，就能獲得啟動過程中的信息，也是cli輸入命令的窗口

啟動信息部分之后，是系統初始化信息，即system_init信息

然后是lf_flash的分區信息

hal_board信息

后面是核心任務信息

后面是當前任務列表和啟動環境信息

后面是usart初始化和wifi初始化相關信息

在串口sscom中輸入help，可得到相關的支持命令

====Support 4 cmds once, seperate by ; ====
help : print this
p : print memory
m : modify memory
echo : echo for command
exit : close CLI
devname : print device name
sysver : system version
reboot : reboot system
poweroff : poweroff system
reset : system reset
time : system time
ota : system ota
ps : thread dump
ls : file list
hexdump : dump file
cat : cat file
====User Commands====
aws : aws iot demo
pka : pka iot demo
wifi : wifi
sha : sha iot demo
trng : trng test
aes : trng test
cks : cks test
dma : dma test
exception_load : exception load test
exception_l_illegal : exception load test
exception_store : exception store test
exception_inst_illegal : exception illegal instruction
stack_wifi : Wi-Fi Stack
http : http client download test based on socket
httpc : http client download test based on RAW TCP
coex_dump : coex dump
rf_dump : rf dump
wifi_ap_bcnint_set : wifi ap bcnin set
wifi_capcode : wifi capcode
wifi_scan : wifi scan
wifi_scan_filter : wifi scan
wifi_mon : wifi monitor
wifi_raw_send : wifi raw send test
wifi_sta_info : wifi sta info
wifi_sta_ip_set : wifi STA IP config [ip] [mask] [gw] [dns1] [dns2]
wifi_sta_ip_unset : wifi STA IP config unset
wifi_sta_disconnect : wifi station disconnect
wifi_sta_connect : wifi station connect
wifi_sta_get_state : wifi sta get state
wifi_sta_autoconnect_enable: wifi station enable auto reconnect
wifi_sta_autoconnect_disable: wifi station disable auto reconnect
rc_fix_en : wifi rate control fixed rate enable
rc_fix_dis : wifi rate control fixed rate diable
wifi_sta_ps_on : wifi power saving mode ON
wifi_sta_ps_off : wifi power saving mode OFF
wifi_sta_denoise_enable: wifi denoise
wifi_sta_denoise_disable : wifi denoise
wifi_sniffer_on : wifi sniffer mode on
wifi_sniffer_off : wifi sniffer mode off
wifi_ap_start : start Ap mode
wifi_ap_stop : stop Ap mode
wifi_ap_conf_max_sta : config Ap max sta
wifi_dump : dump fw statistic
wifi_cfg : wifi cfg cmd
wifi_mib : dump mib statistic
wifi_pkt : wifi dump needed
wifi_coex_rf_force_on : wifi coex RF forece on
wifi_coex_rf_force_off : wifi coex RF forece off
wifi_coex_pti_force_on : wifi coex PTI forece on
wifi_coex_pti_force_off: wifi coex PTI forece off
wifi_coex_pta_force_on : wifi coex PTA forece on
wifi_coex_pta_force_off: wifi coex PTA forece off
wifi_sta_list : get sta list in AP mode
wifi_sta_del : delete one sta in AP mode
wifi_edca_dump : dump EDCA data
wifi_state : get wifi_state
wifi_update_power : Power table test command
looprt : looprt based on bloop
looprt_status : looprt based on bloop
looprt_evt : looprt notify event
looprt_evt_status : looprt evt to dump
looprt_schedule1 : looprt schedule evt 20s
looprt_schedule2 : looprt schedule evt 10s
tcpc : create a tcpc for in a new task
tcps : create a tcp server for in a new task
ipc : iperf TCP client
ips : iperf TCP server
ipu : iperf UDP client
ipus : iperf UDP server
netstat : show current net states
ping : ping [-c count] [-i interval] [-W timeout] [-s size] [-h help] destination
-c count of ping requests. default is infinite
-i interval in ms. default is 1000
-W timeout in ms. default is 5000
-s ICMP payload size in bsntp_start : sntp start
sntp_time : sntp time
sntp_date : sntp date
blfdt : blfdt
blogset : blog pri set level
blogdump : blog info dump
ota_tcp : OTA from TCP server port 3333
ota_dump : dump partitions for ota related
lf_sys_time_now : sys time now
psm_set : psm set
psm_unset : psm unset
psm_get : psm get
psm_dump : psm dump
psm_erase : psm dump
psm_test : psm test
gpio-func : gpio-func pinnum 0/1[0:output, 1:input] 0/1[pullup] 0/1[pulldown]
gpio-set : gpio-set pinnum 0/1
gpio-get : gpio-get pinnum
wdt-init : wdt-init ms
wdt-feed : wdt-feed
wdt-disable : wdt-disable
timer-start : timer-start

復制代碼

通過串口輸入相關命令，連接WiFi
wifi_sta_connect TP-LINK_6BE8 177381309xx

----- BUG FIXME? NOT do STA enable again
[WF] MM_ADD_IF_REQ Sending: STA
歵d_start idx=0
[WF] MM_ADD_IF_REQ Done
[WF] vif_index from LAMC is 0
[WF][SM] Entering idle state
[WF][SM] Action Connect
ssid TP-LINK_6BE8
ssid len 12
psk 17738130986
psk len 11
pmk
pmk len 0
channel band 0
channel freq 0
mac 00:00:00:00:00:00
dhcp status: true
[WF][SM] State Action ###idle### --->>> ###connecting###
connecting using vif_idx 0
===start sm_get_bss_params===
bssid[0] = 0xffff
bssid[1] = 0xffff
bssid[2] = 0xffff
search ssid = TP-LINK_6BE8
result ssid index = -1
===end sm_get_bss_params===
[WF][SM] Entering connecting state
# [APP] [EVT] Connecting 880885
===start sm_get_bss_params===
bssid[0] = 0xffff
bssid[1] = 0xffff
bssid[2] = 0xffff
search ssid = TP-LINK_6BE8
result ssid index = 0
===end sm_get_bss_params===
wpa2/wpa3 pairwise ccmp:1,tkip:0,wep104:0,wep:40:0
wpa2/wpa3 group ccmp:1,tkip:0,wep104:0,wep:40:0
wpa2/wpa3 is_pmf_required:0
AP Security mode: wep:0,wpa:1,wpa2:1,wpa3:0
------ 247 set default key 0x42018c08, key ptr 0x00000000
[APP] [EVT] SCAN On Join 884653
[ 890129][[32mINFO[0m: lf_adc.c: 260] offset = 2158
proc_hellow_entry: RISC-V rv32imafc
4-way handshake timeout failure, wlan 802.11 reason code = 15, try to transmit deauth frame
ind ix 0x4202303c, chan_ctxt is 0x420183f4
connect failure, ssid = TP-LINK_6BE8, index = 0
from sm_connect_ind to scanu_rm_exist_ssid
[RX] Connection Status
[RX] status_code 8
[RX] connect result: Passwd error, 4-way handshake timeout
[RX] MAC 74:05:A5:C3:6B:E8
[RX] vif_idx 0
[RX] ap_idx 0
[RX] ch_idx 0
[RX] qos 1
[RX] acm 0
[RX] assoc_req_ie_len 89
[RX] assoc_rsp_ie_len 196
[RX] aid 0
[RX] band 0
[RX] center_freq 2462
[RX] width 0
[RX] center_freq1 2462
[RX] center_freq2 0
[WF][SM] Exiting connecting state
[WF][SM] State Action ###connecting### --->>> ###disconnect###
[WF][SM] Entering disconnect state
[WF][SM] Will retry in 2000 ticks
[APP] [EVT] disconnect 894737, Reason: Passwd error, 4-way handshake timeout
[WF][PF] Using profile, idx is @0
[WF][SM] Retry Again --->>> retry connect
[WF][SM] Exiting disconnect state
Delete Timer.
[WF][SM] State Action ###disconnect### --->>> ###connecting###
[WF][SM]Action Connect
ssid TP-LINK_6BE8
ssid len 12
psk 17738130986
psk len 11
pmk
pmk len 0
mac 00:00:00:00:00:00
connecting using vif_idx 0
===start sm_get_bss_params===
bssid[0] = 0xffff
bssid[1] = 0xffff
bssid[2] = 0xffff
search ssid = TP-LINK_6BE8
result ssid index = -1
===end sm_get_bss_params===
[WF][SM] Entering connecting state
[APP] [EVT] Reconnect 896740
[APP] [EVT] Connecting 896740
===start sm_get_bss_params===
bssid[0] = 0xffff
bssid[1] = 0xffff
bssid[2] = 0xffff
search ssid = TP-LINK_6BE8
result ssid index = 0
===end sm_get_bss_params===
wpa2/wpa3 pairwise ccmp:1,tkip:0,wep104:0,wep:40:0
wpa2/wpa3 group ccmp:1,tkip:0,wep104:0,wep:40:0
wpa2/wpa3 is_pmf_required:0
AP Security mode: wep:0,wpa:1,wpa2:1,wpa3:0
------ 247 set default key 0x42018d40, key ptr 0x00000000
[APP] [EVT] SCAN On Join 900510
proc_hellow_entry: RISC-V rv32imafc
set key:sta_idx:1, inst_nbr:0, key_idx:0,cipher_suite:2,key_len:16
set key:sta_idx:255, inst_nbr:0, key_idx:1,cipher_suite:2,key_len:16
ind ix 0x42022e34, chan_ctxt is 0x42018410
[RX] Connection Status
[RX] status_code 0
[RX] connect result: sm connect ind ok
[RX] MAC 74:05:A5:C3:6B:E8
[RX] vif_idx 0
[RX] ap_idx 1
[RX] ch_idx 0
[RX] qos 1
[RX] acm 0
[RX] assoc_req_ie_len 89
[RX] assoc_rsp_ie_len 196
[RX] aid 0
[RX] band 0
[RX] center_freq 2462
[RX] width 0
[RX] center_freq1 2462
[RX] center_freq2 0
[WF][SM] Exiting connecting state
[WF][SM] State Action ###connecting### --->>> ###wifiConnected_ipObtaining###
[WF][SM] Entering wifiConnected_ipObtaining state
[WF][SM] DHCP Starting...0x42019e24
[APP] [EVT] connected 900828
-----------------> AABA Request:
A-MSDU: Not Permitted
Block Ack Policy: Immediate Block Ack
TID: 0
Number of Buffers: 64
-----------------> AABA Response:
A-MSDU: Not Permitted
Block Ack Policy: Immediate Block Ack
TID: 0
Number of Buffers: 8
[lwip] netif status callback
IP: 192.168.1.105
MK: 255.255.255.0
GW: 192.168.1.1
[WF][SM] Exiting wifiConnected_ipObtaining state
[WF][SM] IP GOT IP:192.168.1.105, MASK: 255.255.255.0, Gateway: 192.168.1.1, dns1: 172.16.16.16, dns2: 172.16.16.17
[WF][SM] State Action ###wifiConnected_ipObtaining### --->>> ###wifiConnected_IPOK###
[WF][SM] Entering wifiConnected_IPOK state
[APP] [EVT] GOT IP 903003
[SYS] Memory left is 133512 Bytes

復制代碼

可以看到比較完整的WiFi連接信息，及其結果，IP地址詳細信息
成功連接WiFi后，可以用ping命令測試是否聯網成功

ping -c20 www.baidu.com
# 60 bytes from 182.61.200.7: icmp_seq=1 ttl=47 time=38 ms
60 bytes from 182.61.200.7: icmp_seq=2 ttl=47 time=34 ms
proc_hellow_entry: RISC-V rv32imafc
60 bytes from 182.61.200.7: icmp_seq=3 ttl=47 time=37 ms
60 bytes from 182.61.200.7: icmp_seq=5 ttl=47 time=36 ms
60 bytes from 182.61.200.7: icmp_seq=6 ttl=47 time=37 ms
60 bytes from 182.61.200.7: icmp_seq=7 ttl=47 time=38 ms
60 bytes from 182.61.200.7: icmp_seq=8 ttl=47 time=35 ms
The sequence number 4 timed out
60 bytes from 182.61.200.7: icmp_seq=9 ttl=47 time=39 ms
60 bytes from 182.61.200.7: icmp_seq=10 ttl=47 time=42 ms
60 bytes from 182.61.200.7: icmp_seq=11 ttl=47 time=36 ms
60 bytes from 182.61.200.7: icmp_seq=12 ttl=47 time=34 ms
proc_hellow_entry: RISC-V rv32imafc
60 bytes from 182.61.200.7: icmp_seq=13 ttl=47 time=36 ms
60 bytes from 182.61.200.7: icmp_seq=14 ttl=47 time=39 ms
60 bytes from 182.61.200.7: icmp_seq=15 ttl=47 time=39 ms
60 bytes from 182.61.200.7: icmp_seq=16 ttl=47 time=39 ms
60 bytes from 182.61.200.7: icmp_seq=17 ttl=47 time=40 ms
60 bytes from 182.61.200.7: icmp_seq=18 ttl=47 time=39 ms
60 bytes from 182.61.200.7: icmp_seq=19 ttl=47 time=34 ms
60 bytes from 182.61.200.7: icmp_seq=20 ttl=47 time=41 ms

復制代碼

有個別丟包現象，應該是WiFi信號不夠好
demo例程中提供了一個http下載的功能

static int client_demo(char *hostname)
{
int sockfd;
/* Get host address from the input name */
struct hostent *hostinfo = gethostbyname(hostname);
uint8_t *recv_buffer;
if (!hostinfo) {
printf("gethostbyname Failedrn");
return -1;
}
struct sockaddr_in dest;
char buffer[MAXBUF];
/* Create a socket */
/*---Open socket for streaming---*/
if ((sockfd = socket(AF_INET, SOCK_STREAM, 0)) < 0) {
printf("Error in socketrn");
return -1;
}
/*---Initialize server address/port struct---*/
memset(&dest, 0, sizeof(dest));
dest.sin_family = AF_INET;
dest.sin_port = htons(PORT);
dest.sin_addr = *((struct in_addr *) hostinfo->h_addr);
// char ip[16];
uint32_t address = dest.sin_addr.s_addr;
char *ip = inet_ntoa(address);
printf("Server ip Address : %srn", ip);
/*---Connect to server---*/
if (connect(sockfd,
(struct sockaddr *)&dest,
sizeof(dest)) != 0) {
printf("Error in connectrn");
return -1;
}
/*---Get "Hello?"---*/
memset(buffer, 0, MAXBUF);
char wbuf[]
= "GET /ddm/ContentResource/music/204.mp3 HTTP/1.1rnHost: nf.cr.dandanman.comrnUser-Agent: wmsdkrnAccept: */*rnrn";
write(sockfd, wbuf, sizeof(wbuf) - 1);
int ret = 0;
int total = 0;
int debug_counter = 0;
uint32_t ticks_start, ticks_end, time_consumed;
ticks_start = xTaskGetTickCount();
recv_buffer = pvPortMalloc(BUFFER_SIZE);
if (NULL == recv_buffer) {
goto out;
}
while (1) {
ret = read(sockfd, recv_buffer, BUFFER_SIZE);
if (ret == 0) {
printf("eofnr");
break;
} else if (ret < 0) {
printf("ret = %d, err = %dnr", ret, errno);
break;
} else {
total += ret;
/*use less debug*/
if (0 == ((debug_counter++) & 0xFF)) {
printf("total = %d, ret = %dnr", total, ret);
}
//vTaskDelay(2);
if (total > 82050000) {
ticks_end = xTaskGetTickCount();
time_consumed = ((uint32_t)(((int32_t)ticks_end) - ((int32_t)ticks_start))) / 1000;
printf("Download comlete, total time %u s, speed %u Kbpsrn",
(unsigned int)time_consumed,
(unsigned int)(total / time_consumed * 8 / 1000)
);
break;
}
}
}
vPortFree(recv_buffer);
out:
close(sockfd);
return 0;
}

復制代碼

對應的命令是http，可以看到其下載的過程

http
Server ip Address : 60.255.154.100
total = 688, ret = 688
proc_hellow_entry: RISC-V rv32imafc
total = 234608, ret = 688
total = 468528, ret = 688
proc_hellow_entry: RISC-V rv32imafc
total = 695568, ret = 1376
total = 920544, ret = 688
proc_hellow_entry: RISC-V rv32imafc
total = 1157216, ret = 688
total = 1490896, ret = 1376
proc_hellow_entry: RISC-V rv32imafc
total = 1885808, ret = 2064
proc_hellow_entry: RISC-V rv32imafc
proc_hellow_entry: RISC-V rv32imafc
proc_hellow_entry: RISC-V rv32imafc
proc_hellow_entry: RISC-V rv32imafc
eof

復制代碼

total的值，應該就是下載的字節數值。
三、心得體會
BF2的開發板提供了很多的demo，還是比較豐富的，只是其代碼風格和公司的規定，可能有些特殊，感覺使用起來束縛感比較重，代碼方面也感覺不夠簡單易用，想開發符合自己要求的應用，感覺難度不小，相對其他廠家的同類產品，如ESP32等，易用性以及性價比方面感覺存在不小的差距。最后，還是感覺躍昉科技和發燒友提供的評測機會！

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