1
1
2
2
3
3
4
4
D D
C C
B B
A A
1
200 Scenic View Dr.
Cumberland, RI 02864 111/3/2020
Sheet: of
INM-PCB-ACVF-CapSlider.SchDoc
INM-PCB-ACVF-CapSlider.PrjPcb
Originally Drawn By:
Project:
Sheet:
Variant: Default
Last Modified By:
Last Modified:
Copyright 2020, inMusic Brands
All Rights Reserved
Rev B
RST/NMI/SBWTDIO
1
TEST/SBWTCK
2
P1.4/UCA0TXD/UCA0SIMO/TA1.2/TCK/A4/VREF+
3
P1.5/UCA0RXD/UCA0SOMI/TA1.1/TMS/A5
4
P1.6/UCA0CLK/TA1CLK/TDI/TCLK/A6
5
P1.7/UCA0STE/SMCLK/TDO/A7
6
P1.0/UCB0STE/TA0CLK/A0/Veref+
7
P1.1/UCB0CLK/TA0.1/A1
8
P1.2/UCB0SIMO/UCB0SDA/TA0.2/A2/Veref-
9
P1.3/UCB0SOMI/UCB0SCL/MCLK/A3
10
P2.2/SYNC/ACLK
11
P3.0/CAP0.0
12
CAP0.1
13
P2.3/CAP0.2
14
CAP0.3
15
P3.1/UCA1STE/CAP1.0
16
P2.4/UCA1CLK/CAP1.1
17
P2.5/UCA1RXD/UCA1SOMI/CAP1.2
18
P2.6/UCA1TXD/UCA1SIMO/CAP1.3
19
VREG
20
CAP2.0
21
CAP2.1
22
CAP2.2
23
CAP2.3
24
P2.7/CAP3.0
25
CAP3.1
26
P3.2/CAP3.2
27
CAP3.3
28
P2.0/XOUT
29
P2.1/XIN
30
DVSS
31
DVCC
32
PAD
33
U1
MSP430FR2633
47.5K
R1
4.7uF
6.3V
C1
0.1uF
16V
C2
+3.3V
GND
1uF
6.3V
C3
GND
GND
1,000pF
16V
C4
GND
nRESET
TEST
I2C-SDA
I2C-SCL
UART-RX
UART-TX
475R2
475R3
475R4
475R5
+3.3V
IRQ
GND
TP1
+3.3V
1
2
3
4
5
6
7
8
9
10
J1
UART-TX
UART-RX
TEST
nRESET
I2C-SDA
I2C-SCL
IRQ
HOST INTERFACE
-MCU needs I2C-SCL, I2C-SDA, TEST, and nRESET
DEBUGGING NEEDS
-At a minimum: UART-TX, UART-RX, and GND should be brought out to a 0.1"
header for connection to CapTIvate programmer for touch analysis
-If space allows: optional 0-ohm resistors or jumpers that would re-route TEST and
nRESET to the debugging header instead of MCU. W ould allow direct programming
of MSP430 by external tool.
A
1
B
2
C
3
D
4
4 Element Capacitive Slider
CT1
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