UM-B-041
SmartBond Production Line Tool
User Manual
Revision 4.8
02-Nov-2022
CFR0012
15 of 170
© 2022 Renesas Electronics
5
Hardware
5.1
Hardware Block Diagram
The Production Line Tool hardware consists of various blocks, as illustrated in
These
blocks are explained below.
●
Blue blocks:
USB-to-UART interfaces
○
Four
FT4232 FTDI
QUAD USB-to-UART interfaces are used for a 16-channel USB-to-UART
conversion
○
The GU is connected to the PC via an
FT232 FTDI
USB-to-UART interface
●
Red block:
A
CPLD
that has the following purpose
○
Switch UART signals between the PC USB-UART and DUTs
○
Switch DUTs VBAT signal
○
Switch DUTs VPP signal (only when VBAT is enabled)
○
Produce Reset signal to the DUTs
○
Produce very accurate 300 ms or 500 ms XTAL calibration pulse
●
Orange block:
A
Golden Unit
(GU) is mounted, which has the following functionality:
○
CPLD control using custom commands
○
Transceiver for Bluetooth RF signals to and from the DUTs
○
Produce an audio tone using PWM, used for audio testing
○
Scan for device Bluetooth
®
LE advertisements, after the customer firmware has been
programmed
●
Purple blocks:
Sixteen (16) device connectors
Figure 2: Production Line Tool Hardware Board Block Diagram
USB
HUB
FT4232
FT4232
FT4232
FT4232
CPLD
Golden Unit
USB Cable 2
FT232
USB Cable 1
Production Line Tool Hardware
URX/UTX
URX/UTX
URX/UTX
URX/UTX
4x URX/UTX
4x URX/UTX
4x URX/UTX
4x URX/UTX
Control &
Commands
URX/UTX
DUT1
DUT2
DUT3
DUT16
VPP Enable
VBAT Enable
XTAL trim pulse