Ublox NINA-B4 Series, Руководство по системной интеграции, Страница: 43 / 61

NINA-B4 series - System integration manual
UBX-19052230 - R09 u-connectXpress software Page 43 of 61
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Prerequisites
As a prerequisite to updating software using AT commands, you must open the JSON file included in
the download container and make note of the defined values to be parsed with the update command.
You also need to copy the signatures given in the related txt files, as shown in
Figure 19 . This
information is needed during the install. The defined values to include in the command, together with
the signature file (
NINA-B41X-SI-x.x.x-xxx.txt
), are shown in Table 19 .
[
{
"Label": "ConnectivitySoftware",
"Description": "NINA-B41X u-blox connectivity software",
"File": "NINA-B41X-SW-1.0.0-001.bin",
"Version": "NINA-B41X-SW-1.0.0-001",
"Address": "0x26000",
"Size": "0x4C95C",
"Id": "0x0",
"Permissions": "rwx",
"SignatureFile": "NINA-B41X-SI-1.0.0-001.txt"
},
{
"Label": "SoftDevice",
"Description": "S140 softdevice from Nordic for NINA-NRF",
"File": "NINA-S140-SD-6.1.1.bin",
"Version": "NINA-S140-SD-6.1.1",
"Address": "0x0",
"Size": "0x25DE8",
"Id": "0x1",
"Permissions": "rw",
"SignatureFile": "NINA-S140-SI-6.1.1.txt"
}
]
Figure 18: Defined values for ConnectivitySoftware and SoftDevice as shown in the JSON file
N04lae2U7ztBojLvyBmHJKvuQmyioscrE3kdQviDcqSwST59Dg8WZbcN5C6xwZtA3vE/A0M2h3JulhVv49UIIjzh
TZwYLLrnWGNWgu4cAPkmMHkZa5MZl/QSb/GeT8naXe7oVTS2S2ovmTVBMpkfQiEagXq3J4kz
9g1LylUNtHbucAJR5c4jNqxdN3m6BlvQyycxJCJ2J49cnB85RdY4bfJlPGTwcqtGp2Z014Y/
Z7PjeNOMoTFUU8a8e6pULCBLqBH5gC/UU/aSLJLsLL64VEKt2NJB5lZ2fqgzZr82Dqmrpw==
Figure 19: Typical ConnectivitySoftware and SoftDevice signature file
Command syntax
You use the software update command
AT+UFWUPD
with following syntax to update both the
u-connectXpress and SoftDevice software.
AT+UFWUPD=<mode>,<baud_rate>[,<id>,<size>,<signature>,<name>,<flags>]
The defined values for each parameter are shown in Table 19 .
Parameter Type Description
<mode> Enumerator Download mode:
0: Update mode for the ConnectivitySoftware through the serial port
1: Bootloader mode for update of the SoftDevice through the serial port.
<baud rate> Enumerator Baud rate in bits per second: 115200 (default), 230400, 460800, or 921600
<id> Integer ID number of the software image.
<size>
Integer Size of the firmware image. Enter the size integer for the respective software as
defined in the
NINA-B41X-SI-x.x.x-xxx.txt
file. Shown in hex format in the JSON
file but must entered as bytes in decimal notation in the command.
<signature> String RSA signature of the firmware image as base64-encoded string.
Enter the 344-character text string defined in the
NINA-B41X-SI-x.x.x-xxx.txt
file.