Telit Wireless Solutions BlueMod+S50, Руководство пользователя по оборудованию

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S50 Hardware User Guide
1VV0301505 Rev. 3
Page 22 of 60 2021-05-05
Not Subject to NDA
• The other two combinations start the bootloader for firmware update of the
programmed firmware. These two modes are not scope of this document.
The following table shows the possible combinations:
Testmode# Boot0 Mode
Active Inactive Testmode(38400, 8N1)
Active Active DTM (19200, 8N1)
Inactive Active Bootloader (15200, 8N1)
Inactive Inactive Firmware
Table 4: Testmode# / Boot0 Logic
To enter and use the test modes, access to the following signals is required:
• BOOT0
• TESTMODE#
• UART-RXD
•
UART-TXD
•
UART-RTS#
•
UART-CTS#
•
GND
These pins shall be routed to some test pads on an outer layer but can be left open during
normal operation when not used.
Warning: Please note the UART is required for operation of DTM. For
any regulatory approval, UART-RXD, UART-TXD, UART-RTS# and
UART-CTS# must be freely accessible.
4.9. NFC Function
Functionality is defined project specific in the firmware used.
The NFCT peripheral supports communication signal interface type A and 106 kbps bit
rate from the NFC Forum. With appropriate software, the NFC peripheral can be used to
emulate the listening device NFC-A as specified by the NFC Forum.
Main features for the NFC peripheral:
•
NFC-A listen mode operation
•
13.56 MHz input frequency
•
Bit rate 106 kbps