Ublox NINA-B3 Series - Page 25

NINA-B3 series - System integration manual
UBX-17056748 - R13 Software Page 25 of 72
C1-Public
☞ In contrast to the s-center configuration, UART hardware flow is not used for updating software
using AT commands. The file download uses standard XMODEM-CRC16 protocol and 128 byte
packets.
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 8. This
information is needed during the install. The defined values to include in the command, together with
the signature file (NINA-B31X-SI-x.x.x-xxx.txt), are shown in Figure 5.
[
{
"Label": "ConnectivitySoftware",
"Description": "NINA-B31X u-blox connectivity software",
"File": "NINA-B31X-SW-3.0.0-005.bin",
"Version": "NINA-B31X-SW-3.0.0-005",
"Address": "0x26000",
"Size": "0x4C95C",
"Id": "0x0",
"Permissions": "rwx",
"SignatureFile": "NINA-B31X-SI-3.0.0-005.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 7: Defined values for ConnectivitySoftware and SoftDevice as shown in the JSON file
N04lae2U7ztBojLvyBmHJKvuQmyioscrE3kdQviDcqSwST59Dg8WZbcN5C6xwZtA3vE/A0M2h3JulhVv49UIIjzh
TZwYLLrnWGNWgu4cAPkmMHkZa5MZl/QSb/GeT8naXe7oVTS2S2NzXX83N+ovmTVBMpkfQiEoNJw5u5+agXq3J4kz
9g1LylUNtHbucAJR5cs1hsrOC+UZSULY2+4jNqxdN3m6BlvQyycxJCJ2J49cnB85RdY4bfJlPGTwcqtGp2Z014Y/
Z7PjeNOMoTFUKZDWN6e+U8a8e6pULCBLqBH5gC/UU/aSLJLsLL64VEKt2NJB5lZ2fqgzZr82Dqmrpw==
Figure 8: 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 7.