[Android Q&A, Help & Troubleshooting] michfood:
no the log is not full.

it changes UART speed while booting.

script:

#!/usr/bin/python
#-*- coding: utf-8 -*-

import os
import os.path
import serial, time
import array
import sys, getopt

class bootdownload(object):
'''
Hisilicon boot downloader

>>> downloader = bootdownload()
>>> downloader.download(filename)

'''

# crctab calculated by Mark G. Mendel, Network Systems Corporation
crctable = [
0x0000, 0x1021, 0x2042, 0x3063, 0x4084, 0x50a5, 0x60c6, 0x70e7,
0x8108, 0x9129, 0xa14a, 0xb16b, 0xc18c, 0xd1ad, 0xe1ce, 0xf1ef,
0x1231, 0x0210, 0x3273, 0x2252, 0x52b5, 0x4294, 0x72f7, 0x62d6,
0x9339, 0x8318, 0xb37b, 0xa35a, 0xd3bd, 0xc39c, 0xf3ff, 0xe3de,
0x2462, 0x3443, 0x0420, 0x1401, 0x64e6, 0x74c7, 0x44a4, 0x5485,
0xa56a, 0xb54b, 0x8528, 0x9509, 0xe5ee, 0xf5cf, 0xc5ac, 0xd58d,
0x3653, 0x2672, 0x1611, 0x0630, 0x76d7, 0x66f6, 0x5695, 0x46b4,
0xb75b, 0xa77a, 0x9719, 0x8738, 0xf7df, 0xe7fe, 0xd79d, 0xc7bc,
0x48c4, 0x58e5, 0x6886, 0x78a7, 0x0840, 0x1861, 0x2802, 0x3823,
0xc9cc, 0xd9ed, 0xe98e, 0xf9af, 0x8948, 0x9969, 0xa90a, 0xb92b,
0x5af5, 0x4ad4, 0x7ab7, 0x6a96, 0x1a71, 0x0a50, 0x3a33, 0x2a12,
0xdbfd, 0xcbdc, 0xfbbf, 0xeb9e, 0x9b79, 0x8b58, 0xbb3b, 0xab1a,
0x6ca6, 0x7c87, 0x4ce4, 0x5cc5, 0x2c22, 0x3c03, 0x0c60, 0x1c41,
0xedae, 0xfd8f, 0xcdec, 0xddcd, 0xad2a, 0xbd0b, 0x8d68, 0x9d49,
0x7e97, 0x6eb6, 0x5ed5, 0x4ef4, 0x3e13, 0x2e32, 0x1e51, 0x0e70,
0xff9f, 0xefbe, 0xdfdd, 0xcffc, 0xbf1b, 0xaf3a, 0x9f59, 0x8f78,
0x9188, 0x81a9, 0xb1ca, 0xa1eb, 0xd10c, 0xc12d, 0xf14e, 0xe16f,
0x1080, 0x00a1, 0x30c2, 0x20e3, 0x5004, 0x4025, 0x7046, 0x6067,
0x83b9, 0x9398, 0xa3fb, 0xb3da, 0xc33d, 0xd31c, 0xe37f, 0xf35e,
0x02b1, 0x1290, 0x22f3, 0x32d2, 0x4235, 0x5214, 0x6277, 0x7256,
0xb5ea, 0xa5cb, 0x95a8, 0x8589, 0xf56e, 0xe54f, 0xd52c, 0xc50d,
0x34e2, 0x24c3, 0x14a0, 0x0481, 0x7466, 0x6447, 0x5424, 0x4405,
0xa7db, 0xb7fa, 0x8799, 0x97b8, 0xe75f, 0xf77e, 0xc71d, 0xd73c,
0x26d3, 0x36f2, 0x0691, 0x16b0, 0x6657, 0x7676, 0x4615, 0x5634,
0xd94c, 0xc96d, 0xf90e, 0xe92f, 0x99c8, 0x89e9, 0xb98a, 0xa9ab,
0x5844, 0x4865, 0x7806, 0x6827, 0x18c0, 0x08e1, 0x3882, 0x28a3,
0xcb7d, 0xdb5c, 0xeb3f, 0xfb1e, 0x8bf9, 0x9bd8, 0xabbb, 0xbb9a,
0x4a75, 0x5a54, 0x6a37, 0x7a16, 0x0af1, 0x1ad0, 0x2ab3, 0x3a92,
0xfd2e, 0xed0f, 0xdd6c, 0xcd4d, 0xbdaa, 0xad8b, 0x9de8, 0x8dc9,
0x7c26, 0x6c07, 0x5c64, 0x4c45, 0x3ca2, 0x2c83, 0x1ce0, 0x0cc1,
0xef1f, 0xff3e, 0xcf5d, 0xdf7c, 0xaf9b, 0xbfba, 0x8fd9, 0x9ff8,
0x6e17, 0x7e36, 0x4e55, 0x5e74, 0x2e93, 0x3eb2, 0x0ed1, 0x1ef0,
]

startframe = {
'hi3716cv200':[0xFE,0x00,0xFF,0x01,0x00,0x00,0x00,0x04,0x00,0x00,0x02,0x01]
}

headframe = {
'hi3716cv200':[0xFE,0x00,0xFF,0x01,0x00,0x00,0x00,0x04,0x00,0x00,0x02,0x01]
}

bootheadaddress = {
'hi3716cv200':0xF9800800
}

bootdownloadaddress = {
'hi3716cv200':0x07000000
}

BOOT_HEAD_LEN = 0x4F00
MAX_DATA_LEN = 0x400

def __init__(self,chiptype,serialport):
try:
self.s = serial.Serial(port=serialport, baudrate=115200, timeout=1)
except serial.serialutil.SerialException:
#no serial connection
self.s = None
print "\nFailed to open serial!", serialport
sys.exit(2)

self.chip = chiptype

def __del__(self):
if self.s != None:
self.s.close()

def calc_crc(self, data, crc=0):
for char in data:
crc = ((crc << 8) | ord(char)) ^ self.crctable[(crc >> 8) & 0xff]
for i in range(0,2):
crc = ((crc << 8) | 0) ^ self.crctable[(crc >> 8) & 0xff]
return crc & 0xffff

def getsize(self, filename):
st = os.stat(filename)
return st.st_size

def sendframe(self, data, loop):
for i in range(1, loop):
self.s.flushOutput()
self.s.write(data)
self.s.flushInput()
try:
ack = self.s.read()
if len(ack) == 1:
if ack == chr(0xaa):
return None
except:
return None

print 'failed'

def sendstartframe(self):
self.s.setTimeout(0.01)
data = array.array('B', self.startframe[self.chip]).tostring()
crc = self.calc_crc(data)
data += chr((crc >> 8)&0xff)
data += chr(crc&0xff)
self.sendframe(data,10000)

def sendheadframe(self,length,address):
self.s.setTimeout(0.03)
self.headframe[self.chip][4] = (length>>24)&0xff
self.headframe[self.chip][5] = (length>>16)&0xff
self.headframe[self.chip][6] = (length>>8)&0xff
self.headframe[self.chip][7] = (length)&0xff
self.headframe[self.chip][8] = (address>>24)&0xff
self.headframe[self.chip][9] = (address>>16)&0xff
self.headframe[self.chip][10] = (address>>8)&0xff
self.headframe[self.chip][11] = (address)&0xff

data = array.array('B', self.headframe[self.chip]).tostring()
crc = self.calc_crc(data)

data += chr((crc >> 8)&0xff)
data += chr(crc&0xff)

self.sendframe(data,16)

def senddataframe(self,seq,data):
self.s.setTimeout(0.15)
head = chr(0xDA)
head += chr(seq&0xFF)
head += chr((~seq)&0xFF)

data = head + data

crc = self.calc_crc(data)
data += chr((crc >> 8)&0xff)
data += chr(crc&0xff)

self.sendframe(data,32)

def sendtailframe(self,seq):
data = chr(0xED)
data += chr(seq&0xFF)
data += chr((~seq)&0xFF)
crc = self.calc_crc(data)
data += chr((crc >> 8)&0xff)
data += chr(crc&0xff)

self.sendframe(data,16)

def senddata(self, data, address):
length=len(data)
self.sendheadframe(length,address)
seq=1
while length > self.MAX_DATA_LEN:
self.senddataframe(seq,data[(seq-1)*self.MAX_DATA_LEN:seq*self.MAX_DATA_LEN])
seq = seq+1
length = length-self.MAX_DATA_LEN
self.senddataframe(seq,data[(seq-1)*self.MAX_DATA_LEN:])
self.sendtailframe(seq+1)

def download(self, filename1, filename2):

f=open(filename1,"rb")
data = f.read()
f.close()

print 'Sending', filename1, '...'
self.senddata(data,self.bootheadaddress[self.chip])
print 'Done\n'

if filename2:
f=open(filename2,"rb")
data = f.read()
f.close()

print 'Sending', filename2, '...'
self.senddata(data,self.bootdownloadaddress[self.chip])
print 'Done\n'

def burnboot(chiptype, serialport, filename1, filename2=''):
downloader = bootdownload(chiptype, serialport)
downloader.download(filename1, filename2)

def startterm(serialport=0):
try:
miniterm = Miniterm(
serialport,
115200,
'N',
rtscts=False,
xonxoff=False,
echo=False,
convert_outgoing=2,
repr_mode=0,
)
except serial.SerialException, e:
sys.stderr.write("could not open port %r: %s\n" % (port, e))
sys.exit(1)
miniterm.start()
miniterm.join(True)
miniterm.join()

def main(argv):
'''
img2 = 'fastboot2.img'
'''
img1 = 'fastboot1.img'
img2 = ''
dev = '/dev/serial/by-id/usb-䕇䕎䥎_㄰㌲㔴㜶㤸-if00-port0'
try:
opts, args = getopt.getopt(argv,"hd:",["img1=","img2="])
except getopt.GetoptError:
print 'hisi-idt.py -d device --img1 <fastboot1> --img2 <fastboot2>'
sys.exit(2)
for opt, arg in opts:
if opt == '-h':
print 'hisi-idt.py -d device --img1 <fastboot1> --img2 <fastboot2>'
sys.exit()
elif opt in ("-d"):
dev = arg
elif opt in ("--img1"):
img1 = arg
elif opt in ("--img2"):
img2 = arg
print '+----------------------+'
print ' Serial: ', dev
print ' Image1: ', img1
print ' Image2: ', img2
print '+----------------------+\n'

if not os.path.isfile(img1):
print "Image don't exists:", img1
sys.exit(1)

if (img2):
if not os.path.isfile(img2):
print "Image don't exists:", img2
sys.exit(1)

burnboot('hi3716cv200', dev, img1, img2)

if __name__ == "__main__":
main(sys.argv[1:])

logs:

��������������������������������������������������������������������������������������������������������������������������0
===>vbus_is_high!
fastboot1 charger_type:CHARGER_TYPE_PC
get_hw_config_int,hw_afreq:1200000.
get_efuse_value,efuse ATE_flag temp:0x0af00000.
ATE PASS,ate flag value:0x00000001.
get_efuse_value,efuse acpu_freq change level:0x8e186100.
get_efuse_value,efuse afreq change level val:0x00000000.
get_efuse_value,efuse acpu_freq level:0x8e186100.
get_efuse_value,efuse acpu freq sys level:0x00000000.
###INFO###,soc_freq = hw_afreq, efuse_afreq:1200000,hw_afreq:1200000.
efuse ACPU 1.4G HPM:0.
efuse ACPU 1.2G HPM:0.
efuse ACPU 960M HPM:0.
fastboot: acpu_dvfs_init successful!
begin get voltage by hpm...
prof[729000]: hpm_dly_exp = 0x00000cb0, hpm_dly_exit = 0x00000cf6!
prof[960000]: hpm_dly_exp = 0x00000cb6, hpm_dly_exit = 0x00000cfc!
prof[1200000]: hpm_dly_exp = 0x00000e94, hpm_dly_exit = 0x00000eda!
acpu support freq num:5
volt:0x0000004a 0x0000004a 0x0000004a 0x0000004a 0x00000057
acpu_get_dvfs_volt,g_afreq_max_pro is :5��acpu max freq:1200000.
#### success !!!!! set_acpu_freq: acpu support freq num is 5 and start is 4 .
get_ddr_type 1; (lpddr2: 0; lpddr3: 1)
pass the func addr: [0xfff81b10]: 0xf980d044ddr_init(): get_ddr_type: 1
ddr freq: 800000
in lpddr3_init: mode: 0; freq_config: 800
switch ddr voltage: 1.25V -> 1.2V
lpddr3_init 150
lpddr3_150_rank0_init_pass
lpddr3_150_rank1_init_pass
lpddr3_init 266
lpddr3_266_rank0_init_pass
lpddr3_266_rank1_init_pass
lpddr3_init 400
lpddr3_400_rank0_init_pass
lpddr3_400_rank1_init_pass
switch ddr voltage: 1.2V -> 1.25V
lpddr3_init 533
lpddr3_rank0_phydraminit_pass
lpddr3_cat_pass
lpddr3_533_rank0_init_pass
rdet_lbs_passrdet_ds_passrdet_rbs_av_passwdet_lbs_passwdet_ds_passwdet_rbs_av_passlpddr3_533_rank1_init_pass
lpddr3_init 800
lpddr3_rank0_phydraminit_pass
lpddr3_cat_pass
lpddr3_800_rank0_init_pass
rdet_lbs_passrdet_ds_passrdet_rbs_av_passwdet_lbs_passwdet_ds_passwdet_rbs_av_passlpddr3_800_rank1_init_pass
ERROR: tmp_freq: 0
tmp_freq: 400000
MR8 value=:0x0000005b
MR5 value=:0x00000001
Samsung DDR
MR6 value=:0x00000004
MR5 value=:0x00000000
[MR7,MR6,MR5]=:0x00000401
ddr init pll1 0x00007800!ddrc_qos_init done
bootloader_logger got buffer at 0x07300000, size 0x00040000
bootloader_logger: no valid data in buffer , (sig = 0x43474244)

[emmc_set_card_ready]emmc id:0xb64432c9 0x520644c1 0x474e4433 0x15010038

[emmc_set_card_ready]manufid: 0x00000015
DDR mode emmc
--error: gps/ldo16
[SEC]check_oem_hw: carrier_id = 0x00000000
DX_BIV_SwImageVerification image id is 0x00000011, return is 0xf1000002 !
execute_load_fastboot2: In secure mode and fastboot2 verify failed!
Load fastboot2 failed!
hw_error_print : led = 12. func = 0. err = 0.
[fastboot]:k3_led_green_on
[fastboot]:k3_led_green_on
[fastboot]:k3_led_green_on
[fastboot]:k3_led_green_on
[fastboot]:k3_led_green_on
[fastboot]:k3_led_green_on
enter fatal_exception!
Unrecovery Error, go to onchiprom usbloader!
USB Soft Disconnect
��������������������������������������������������������������������������������������������������������������������������0
===>vbus_is_high!
fastboot1 charger_type:CHARGER_TYPE_PC
get_hw_config_int,hw_afreq:1200000.
get_efuse_value,efuse ATE_flag temp:0x0af00000.
ATE PASS,ate flag value:0x00000001.
get_efuse_value,efuse acpu_freq change level:0x8e186100.
get_efuse_value,efuse afreq change level val:0x00000000.
get_efuse_value,efuse acpu_freq level:0x8e186100.
get_efuse_value,efuse acpu freq sys level:0x00000000.
###INFO###,soc_freq = hw_afreq, efuse_afreq:1200000,hw_afreq:1200000.
efuse ACPU 1.4G HPM:0.
efuse ACPU 1.2G HPM:0.
efuse ACPU 960M HPM:0.
fastboot: acpu_dvfs_init successful!
begin get voltage by hpm...
prof[729000]: hpm_dly_exp = 0x00000caf, hpm_dly_exit = 0x00000cf5!
prof[960000]: hpm_dly_exp = 0x00000cb5, hpm_dly_exit = 0x00000cfb!
prof[1200000]: hpm_dly_exp = 0x00000e90, hpm_dly_exit = 0x00000ed6!
acpu support freq num:5
volt:0x0000004a 0x0000004a 0x0000004a 0x0000004a 0x00000057
acpu_get_dvfs_volt,g_afreq_max_pro is :5��acpu max freq:1200000.
#### success !!!!! set_acpu_freq: acpu support freq num is 5 and start is 4 .
get_ddr_type 1; (lpddr2: 0; lpddr3: 1)
pass the func addr: [0xfff81b10]: 0xf980d044ddr_init(): get_ddr_type: 1
ddr freq: 800000
in lpddr3_init: mode: 0; freq_config: 800
switch ddr voltage: 1.25V -> 1.2V
lpddr3_init 150
lpddr3_150_rank0_init_pass
lpddr3_150_rank1_init_pass
lpddr3_init 266
lpddr3_266_rank0_init_pass
lpddr3_266_rank1_init_pass
lpddr3_init 400
lpddr3_400_rank0_init_pass
lpddr3_400_rank1_init_pass
switch ddr voltage: 1.2V -> 1.25V
lpddr3_init 533
lpddr3_rank0_phydraminit_pass
lpddr3_cat_pass
lpddr3_533_rank0_init_pass
rdet_lbs_passrdet_ds_passrdet_rbs_av_passwdet_lbs_passwdet_ds_passwdet_rbs_av_passlpddr3_533_rank1_init_pass
lpddr3_init 800
lpddr3_rank0_phydraminit_pass
lpddr3_cat_pass
lpddr3_800_rank0_init_pass
rdet_lbs_passrdet_ds_passrdet_rbs_av_passwdet_lbs_passwdet_ds_passwdet_rbs_av_passlpddr3_800_rank1_init_pass
ERROR: tmp_freq: 0
tmp_freq: 400000
MR8 value=:0x0000005b
MR5 value=:0x00000001
Samsung DDR
MR6 value=:0x00000004
MR5 value=:0x00000000
[MR7,MR6,MR5]=:0x00000401
ddr init pll1 0x00007800!ddrc_qos_init done
bootloader_logger got buffer at 0x07300000, size 0x00040000
bootloader_logger: no valid data in buffer , (sig = 0x43474244)

[emmc_set_card_ready]emmc id:0xb64432c9 0x520644c1 0x474e4433 0x15010038

[emmc_set_card_ready]manufid: 0x00000015
DDR mode emmc
--error: gps/ldo16
[SEC]check_oem_hw: carrier_id = 0x00000000
DX_BIV_SwImageVerification image id is 0x00000011, return is 0xf1000002 !
execute_load_fastboot2: In secure mode and fastboot2 verify failed!
Load fastboot2 failed!
hw_error_print : led = 12. func = 0. err = 0.
[fastboot]:k3_led_green_on
[fastboot]:k3_led_green_on
[fastboot]:k3_led_green_on
[fastboot]:k3_led_green_on
[fastboot]:k3_led_green_on
[fastboot]:k3_led_green_on
enter fatal_exception!
Unrecovery Error, go to onchiprom usbloader!
USB Soft Disconnect
��������������������������������������������������������������������������������������������������������������������������́v
nUpdate debug uart baudRate to :921600
===>vbus_is_high!
fastboot1 download_mode:1
fastboot1 charger_type:CHARGER_TYPE_PC
get_hw_config_int,hw_afreq:1200000.
get_efuse_value,efuse ATE_flag temp:0x0af00000.
ATE PASS,ate flag value:0x00000001.
get_efuse_value,efuse acpu_freq change level:0x8e186100.
get_efuse_value,efuse afreq change level val:0x00000000.
get_efuse_value,efuse acpu_freq level:0x8e186100.
get_efuse_value,efuse acpu freq sys level:0x00000000.
###INFO###,soc_freq = hw_afreq, efuse_afreq:1200000,hw_afreq:1200000.
efuse ACPU 1.4G HPM:0.
efuse ACPU 1.2G HPM:0.
efuse ACPU 960M HPM:0.
fastboot: acpu_dvfs_init successful!
begin get voltage by hpm...
prof[729000]: hpm_dly_exp = 0x00000cad, hpm_dly_exit = 0x00000cf3!
prof[960000]: hpm_dly_exp = 0x00000cad, hpm_dly_exit = 0x00000cf3!
prof[1200000]: hpm_dly_exp = 0x00000e88, hpm_dly_exit = 0x00000ece!
acpu support freq num:5
volt:0x0000004a 0x0000004a 0x0000004a 0x0000004a 0x00000057
acpu_get_dvfs_volt,g_afreq_max_pro is :5��acpu max freq:1200000.
#### success !!!!! set_acpu_freq: acpu support freq num is 5 and start is 4 .
get_ddr_type 1; (lpddr2: 0; lpddr3: 1)
pass the func addr: [0xfff81b10]: 0xf980d044ddr_init(): get_ddr_type: 1
ddr freq: 800000
in lpddr3_init: mode: 0; freq_config: 800
switch ddr voltage: 1.25V -> 1.2V
lpddr3_init 150
lpddr3_150_rank0_init_pass
lpddr3_150_rank1_init_pass
lpddr3_init 266
lpddr3_266_rank0_init_pass
lpddr3_266_rank1_init_pass
lpddr3_init 400
lpddr3_400_rank0_init_pass
lpddr3_400_rank1_init_pass
switch ddr voltage: 1.2V -> 1.25V
lpddr3_init 533
lpddr3_rank0_phydraminit_pass
lpddr3_cat_pass
lpddr3_533_rank0_init_pass
rdet_lbs_passrdet_ds_passrdet_rbs_av_passwdet_lbs_passwdet_ds_passwdet_rbs_av_passlpddr3_533_rank1_init_pass
lpddr3_init 800
lpddr3_rank0_phydraminit_pass
lpddr3_cat_pass
lpddr3_800_rank0_init_pass
rdet_lbs_passrdet_ds_passrdet_rbs_av_passwdet_lbs_passwdet_ds_passwdet_rbs_av_passlpddr3_800_rank1_init_pass
ERROR: tmp_freq: 0
tmp_freq: 400000
MR8 value=:0x0000005b
MR5 value=:0x00000001
Samsung DDR
MR6 value=:0x00000004
MR5 value=:0x00000000
[MR7,MR6,MR5]=:0x00000401
ddr init pll1 0x00007800!ddrc_qos_init done
bootloader_logger got buffer at 0x07300000, size 0x00040000
bootloader_logger: found existing buffer, size 1044, addr 24
USB_DOWNLOAD_MODE
timestamp: 0xfff2c982
return from fastboot1!
uFileAddress=ss=07000000
uFileAddress=ss=07000000
uFileAddress=ss=07000000
image verify failed!