GHI ChipworkX User Manual
G H I E l e c t r o n i c s
ChipworkX User Manual
Rev.4.3 September 21, 2011 User Manual
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Document Information
Information Description
Abstract This document covers complete information about the
ChipworkX™ Module and Development System,
specifications, tutorials, and references.
GHI Electronics,LLC ChipworkX User Manual
Rev.4.3 Page 2 of 50 www.ghielectronics.com
Revision History
Date Modification
09/21/11 Changed WiFi Module information and various updates
03/11/11 Various updates
09/14/10 Updated in-field update section
07/21/10 Updated information for NETMF 4.1
04/26/10 Updated network section
04/02/10 Updates and fixes
03/12/10 First version
GHI Electronics,LLC ChipworkX User Manual
Table of Contents
Table of Contents
1.Introduction...................................................................................4
1.1.What is Microsoft .NET Micro Framework (NETMF)?.........4
1.2.NETMF - Porting vs. Using..................................................4
1.3.GHI's .NET Micro Framework Based Solutions..................5
1.4.What is ChipworkX Module?...............................................5
1.5.Extended Framework Features...........................................6
1.6.ChipworkX Key Features.....................................................6
1.7.Example Applications..........................................................7
2.ChipworkX Development System.................................................8
3.ChipworkX Module Architecture..................................................10
3.1.Block Diagram...................................................................10
3.2.AT91SAM9261S Microcontroller.......................................11
3.3.SDRAM..............................................................................11
3.4.NOR Flash.........................................................................11
3.5.NAND Flash.......................................................................11
3.6.Serial DATAFLASH ..........................................................11
3.7.Ethernet PHY.....................................................................11
3.8.Runtime Loadable Procedure (RLP).................................12
3.9.Database Support..............................................................12
4.Pin-Out Description.....................................................................13
5.ChipworkX On Boot Up...............................................................17
5.1.Bootstrap Loader vs. TinyBooter vs. ChipworkX Firmware
.................................................................................................20
5.2.ChipworkX Access Interface..............................................21
Other Interfaces.................................................................21
6.TinyBooter...................................................................................22
6.1.TinyBooter update using bootstrap loader........................22
Erasing Process:...............................................................22
Emergency Bootstrap access...........................................22
Installing TinyBooter Updater USB Driver:........................23
Updating Tinybooter:.........................................................23
6.2.ChipworkX firmware update through TinyBooter..............24
7.ChipworkX Firmware...................................................................27
7.1.Getting Started with ChipworkX........................................27
All you need to start up.....................................................27
Development System First Power-up...............................28
Adding GHI NETMF Library..............................................32
7.2.ChipworkX Emulator..........................................................34
8.ChipworkX Features...................................................................35
8.1.Application Flash/RAM/EWR.............................................35
Extended Week References (EWR).................................35
NAND Flash......................................................................35
8.2.Debugging Interface (Access Interface)............................35
8.3.Digital Inputs/Outputs........................................................36
8.4.Serial Peripherals..............................................................37
Serial Port (UART)............................................................37
SPI.....................................................................................37
I2C.....................................................................................38
One-wire Interface.............................................................38
8.5.Networking (TCP/IP)..........................................................38
MAC address setting.........................................................38
IP address (DHCP or static):.............................................39
Ethernet.............................................................................39
Wireless LAN WiFi (IEEE 802.11b)...................................40
PPP (TCP/IP access through serial modems)..................41
SSL....................................................................................41
8.6.Graphics / Display.............................................................41
8.7.PWM..................................................................................42
8.8.Touch Screen Control........................................................42
8.9.USB Device (Client) ..........................................................43
USB cable connection detection.......................................43
8.10.USB Host and Supported USB Drivers...........................44
8.11.Storage Devices (Internal Flash, SD, USB) / File System
.................................................................................................44
Internal Flash Storage.......................................................44
SD/MMC Memory..............................................................44
USB Memory.....................................................................45
8.12.Output Compare..............................................................45
8.13.Database.........................................................................45
8.14.Power Control / Hibernate...............................................45
Power Control....................................................................45
Hibernate...........................................................................45
8.15.Real Time Clock..............................................................46
8.16.Battery RAM....................................................................46
8.17.Processor Register Access.............................................46
8.18.JTAG access....................................................................46
8.19.Runtime Loadable Procedure RLP.................................46
8.20.In-Field Update................................................................47
8.21.Watchdog.........................................................................47
9.Advanced Users..........................................................................48
10.ChipworkX design Consideration..............................................48
10.1.Hardware.........................................................................48
10.2.Software...........................................................................48
10.3.ChipworkX Placement.....................................................49
Appendix A: MFDeploy Tool...........................................................50
Legal Notice...................................................................................51
Licensing..................................................................................51
Disclaimer................................................................................51
Rev.4.3 Page 3 of 50 www.ghielectronics.com
GHI Electronics,LLC ChipworkX User Manual
Introduction
1. Introduction
1.1. What is Microsoft .NET Micro Framework (NETMF)?
Microsoft's .NET Micro Framework is a lightweight implementation of the .NET Framework.
It focuses on the specific requirements of resource-constrained embedded systems.
Supporting development in C# and debugging on an emulator or the device, both using
Microsoft's Visual Studio. The .NET Micro Framework is also open source, released under
the Apache 2.0 license and completely free.
Developers already experienced with .NET and Visual Studio can take advantage of their
skills immediately reducing the learning curve. The actual C# application development
process is completely shielded from the low-level design details of the hardware platform.
Combining the benefits with off-the-shelf, low-cost, network-enabled embedded systems
creates a rapid product development solution.
1.2. NETMF - Porting vs. Using
There are two sides to working with NETMF, porting it and using it. For example, writing a
JAVA game on a cell phone is much easier than porting the JAVA virtual machine (JVM) to
the phone. The phone manufacturer did all the hard work of porting JAVA to their phone
allowing the game programmers to use it with ease. NETMF works the same way, porting
is not easy but using it is effortless.
NETMF can be split into two major components, the core (CLR – Common Language
Runtime) and HAL (Hardware Access Layer). The core libraries are made so they are
hardware independent. Usually, no modifications are needed on the core libraries. A
developer porting NETMF for a hardware platform will need to make the HAL to handle
interfacing the hardware control to upper layers.
According to GHI's own experience with NETMF porting, it is not feasible to work on
porting NETMF to your new hardware in case you are targeting medium or low quantities
annually (less than 100,000 units). A faster-to-market option is by using one of the
available OEM modules/chipsets. These OEM devices have everything you need built in
the hardware and software.
Rev.4.3 Page 4 of 50 www.ghielectronics.com
GHI Electronics,LLC ChipworkX User Manual
Introduction
1.3. GHI's .NET Micro Framework Based Solutions
With GHI Electronics, you're getting an experienced partner that offers a wide range of
.NET Micro Framework hardware and software capabilities using the various drop-in
modules/chipsets such as ChipworkX™, Embedded Master, EMX and USBizi. In addition,
our free unlimited support is available to assist you at any point. New features and fixes
come seamlessly to your product at no cost to you.
On top of the great features that the .NET Micro Framework provides, such as Ethernet,
graphics and touch screen, GHI solutions has additional exclusive features such as USB
host, PPP (GPRS/3G), database and native code runtime libraries (RLP). All these
exclusive features are included for you at no extra cost.
1.4. What is ChipworkX Module?
The ChipworkX™ Module is a combination of hardware (ARM9 Processor, Flash, RAM,
Ethernet PHY...etc) on a small (67.6mm x47mm) OEM board MINI9261I with SO-DIMM200
slot that hosts Microsoft's .NET Micro Framework with various PAL/HAL drivers. In addition
to the benefits of the .NET Micro Framework, ChipworkX™ includes exclusive software
and hardware features.
The ChipworkX™ Module is a vastly sophisticated piece of hardware. This complexity
provides the end-user with a remarkably simple platform to implement in any hardware
design. Looking at the ChipworkX™ Development System schematic shows just how
simple it really is. All you need is 3.3 volts and some connections to bring the latest
technologies to your products. With manageable features like USB host, database and
WiFi, the possibilities are boundless.
Rev.4.3 Page 5 of 50 www.ghielectronics.com
GHI Electronics,LLC ChipworkX User Manual
Introduction
Top View
Back View
1.5. Extended Framework Features
ChipworkX™ supports a complete set of .NET Micro Framework features such as
TCP/IP, SSL, FAT, USB device and more. Including support for other exclusive GHI
features such as full USB host stack, CAN, ADC, DAC, PPP, GPRS, 3G, etc.
ChipworkX™ also allows developers to load their own compiled native code.
Furthermore, ChipworkX™ supports SQLite database, allowing fast logging and
retrieval of standard SQL quires.
For real-time and high processing needs, Runtime Loadable Procedures allow users to
load their own compiled native code (C or assembly) to run directly through manged
Micro Framework, similar to the use of DLLs on PCs.
1.6. ChipworkX Key Features
● .NET Micro Framework
● 200 MHz 32-bit ARM9 Processor,
AT91SAM9261S
● 64MB RAM
● 8MB FLASH
● 256MB Internal Flash with File System
● Embedded LCD controller
● Embedded Ethernet PHY with fast
DMA communication.
● Runtime Loadable Procedure
● Full TCP/IP Stack
● Web Services
● SSL
● ZG2100 WiFi Driver
● PPP ( GPRS/ 3G )
● DPWS
● Embedded USB host/device
● 80 Digital I/O Pins with interrupt
capabilities.
● 2 SPI (8/16bit)
● I2C
● 3 UART
● 1 PWM
● 3.3V I/Os voltage
● 0ºC to +70ºC Operational
● Power Consumption (TBD) mA
● Low Power Mode (TBD) mA
● 67.6mmx47mm
● Easily attached with SO-DIMM200
slot.
● RoHS, Lead Free
Rev.4.3 Page 6 of 50 www.ghielectronics.com
GHI Electronics,LLC ChipworkX User Manual
Introduction
1.7. Example Applications
● Designs with intensive processing or time-critical routines (using RLP)
● Vending machine
● Measurement tool or tester
● Network server device
● Robotics
● GPS navigation
● Medical instrument (with a color touch screen display).
● Central alarm system
● Smart appliances
● Industrial automation devices
● Windows SideShow devices
Rev.4.3 Page 7 of 50 www.ghielectronics.com
GHI Electronics,LLC ChipworkX User Manual
ChipworkX Development System
2. ChipworkX Development System
The ChipworkX™ Development System is the official kit from GHI Electronics for the
ChipworkX™ module. This kit exposes the various peripherals and interfaces that make it
an ideal starting point for any .NET Micro Framework project. Furthermore, most of
ChipworkX™ module signals such as GPIO, SPI and UART are accessible on a 0.1"
header for rapid prototyping.
The ChipworkX™ Development System Brochure and Pin-outs Document provides for a
more detailed view of this system.
Front View
Rev.4.3 Page 8 of 50 www.ghielectronics.com
L-Speaker
R-Speaker
RJ45
Ethernet
Dual Port
USB Host
USB Client
JTAG
XBee LEDs
XBee
connector
Power
LEDs
RTC
Battery
Power
Connector
2 LED
4.3” TFT Display
With touch screen
SD/MMC
connector
SV5 header
SV2 header
Buttons Pad
RS232
D-SUB
SV1 header
3D
Accelerometer
UEXT header
L-Speaker
Power
Connector
Power
LEDs
RS232
D-SUB
2 LED
SV1 header
SV2 header
XBee
connector
Accelerometer
XBee LEDs
3D
JTAG
SV5 header
UEXT header
4.3” TFT Display
With touch screen
USB Client
RTC
Battery
Dual Port
USB Host
RJ45
Ethernet
R-Speaker
SD/MMC
connector
Buttons Pad
GHI Electronics,LLC ChipworkX User Manual
ChipworkX Development System
Back View
Rev.4.3 Page 9 of 50 www.ghielectronics.com
ChipworkX™
Module
ChipworkX™
Module
Stereo Audio
Connector
RS232 level
converter
Touch
Controller
VS1053
MP3/MIDI decoder
Touch
Controller
RS232 level
converter
Stereo Audio
Connector
VS1053
MP3/MIDI decoder
GHI Electronics,LLC ChipworkX User Manual
ChipworkX Module Architecture
3. ChipworkX Module Architecture
ChipworkX is a combination of hardware (ARM Processor, Flash, RAM, Ethernet
PHY...etc) that hosts Microsoft's .NET Micro Framework with various PAL/HAL drivers. In
addition to the benefits of the .NET Micro Framework, ChipworkX™ includes exclusive
software and hardware features, such as support for USB host, PPP networking and more.
The (67.6mm x47mm) MINI9261-I module contains everything needed to run the .NET
Micro Framework. The module is a sophisticated piece of hardware developed with a
complex BGA design. This complexity provides the end-user with a remarkably simple
platform to implement in any hardware design.
3.1. Block Diagram
Rev.4.3 Page 10 of 50 www.ghielectronics.com
200MHz ARM9 CPU
Peripherals:GPIO,
Interrupts, PWM,USB HC,
USB Device,
LCD Controller,
Ethernet Controller ...etc
GHI Extended features:
USB Drivers, Hardware Access
ChipworkX™
Module Hardware
.NET Micro Framework
CLR
HALPAL
8MB NOR
Flash for
User
.NET and GHI
Managed Library
10/100
Ethernet PHY
256MB NAND FLASH
With FAT File System
64 MB SDRAM
User Runtime Loadable
Procedure region
GHI RLP
loader
GHI RLP
4MB
serial
Data
FLASH
GHI Electronics,LLC ChipworkX User Manual
ChipworkX Module Architecture
3.2. AT91SAM9261S Microcontroller
AT91SAM9261S 200Mhz ARM9 32-bit processor is the core of the ChipworkX™ Module.
The ChipworkX™ firmware includes HAL and PAL drivers for the various peripherals of this
microcontroller that can be accessed from the user's managed code.
We recommend you consult the AT91SAM9261S user manual for detailed information on
things such as registers, hardware and electrical characteristics.
3.3. SDRAM
64MB of SDRAM comes standard with the ChipworkX™ Module. Approximately 2MB is
reserved for developers native executable data, that includes the Runtime Loadable
Procedures.
3.4. NOR Flash
8MB of NOR flash is available on ChipworkX™ Modules. This memory is used for
ChipworkX™ firmware, user managed code and Extended Weak References.
To ensure long term system stability, GHI used better NOR flash for critical storage,
deployment and firmware.
On the other hand, the NAND flash is used only for File System operations where sector
failure will not cause system instability.
Note: The user MUST NOT access NOR Flash directly (Registers or JTAG...etc). This
might damage your ChipworkX™ module.
3.5. NAND Flash
256MB of NAND flash is used as FAT file system storage under the .NET Micro
Framework. It can be accessed just like any other media, SD card or USB storage device.
3.6. Serial DATAFLASH
ChipworkX™ includes a 4MB Atmel serial Dataflash chip which is used for the boot-up
process, GHI system configuration and TinyBooter.
3.7. Ethernet PHY
The ChipworkX™ Module hardware includes an industrial Ethernet PHY along with the
needed circuitry. The Ethernet oscillator is controlled by the processor allowing the user to
control its power consumption. The designer only needs to wire the signals to the Ethernet
connector. The recommended Ethernet connector is J0026D21.
Rev.4.3 Page 11 of 50 www.ghielectronics.com
GHI Electronics,LLC ChipworkX User Manual
ChipworkX Module Architecture
3.8. Runtime Loadable Procedure (RLP)
A highly useful and unique feature in ChipworkX™ is allowing users to load their own
compiled native code (C or assembly) and run it directly through managed code. This
feature is similar to the use of DLLs on PCs. RLP can be used to implement processing
intensive and time-critical routines.
3.9. Database Support
ChipworkX™ supports SQLite which is useful for logging and retrieving data through
standard SQL queries to databases created on SD card, NAND Flash or even on a USB
thumb drive.
Rev.4.3 Page 12 of 50 www.ghielectronics.com
GHI Electronics,LLC ChipworkX User Manual
Pin-Out Description
4. Pin-Out Description
Most signals on the ChipworkX™ Module are multiplexed to offer more than one function
for every pin. It is up to the developer to select which one of the functions to use. GHI
drivers and the .NET Micro Framework does some checking to make sure the user is not
trying to use two functions on the same pin. However, the developer should still
understand what functions are multiplexed so there is no conflict.
• The schematics of the ChipworkX™ Development System board should be used as
a reference design.
• Advanced details on oscillator and power tolerance can be found in the
AT91SAM9261S datasheet from Atmel website.
• Digital I/O pins are named IOxx, where xx is an assigned number.
SODIMM200 Pin-out
Name
No.
MINI9261I
AT91SAM9261S
H/W Name
ChipworkX IO2
nd
Feature
ChipworkX
Pin Description
1 GND_BG Connect to GroundConnect to Ground
2 ENET_TX- Ethernet transmit data minus.
Recommended
Ethernet connector is
J0026D21. Please
refer to ChipworkX
Development System
schematic.
Ethernet PHY is not
needed since it is
embedded in
ChipworkX hardware.
3 ENET_2.5 Connect to Ethernet Connector Magnet TCT and RCT pins.
4 ENET_TX+ Ethernet transmit data plus.
5 GND Connect to Ground
6 ENET_RX- Ethernet receive data minus.
8 ENET_RX+ Ethernet receive data plus.
11 ENET_LED1 Ethernet interface connection indicator LED
12 ENET_LED2 Ethernet interface activity indicator LED
13 GND3 Connect to Ground
20 3.3V_0 Connect to 3.3 volt source.
27 GND4 Connect to Ground
32 3.3V_1 Connect to 3.3 volt source.
40 GND16 Connect to Ground
41 GND5 Connect to Ground
46 3.3V_2 Connect to 3.3 volt source.
51 GND6 Connect to Ground
60 3.3V_3 Connect to 3.3 volt source.
65 GND7 Connect to Ground
72 3.3V_4 Connect to 3.3 volt source.
79 GND8 Connect to Ground
88 3.3V_5 Connect to 3.3 volt source.
89 NAND_RE (PC0)* Leave unconnected. Reserved for ChipworkX's NAND Flash use.
90 NAND_WE (PC1)* Leave unconnected. Reserved for ChipworkX's NAND Flash use.
91 PC2 (IRQ0) IO66 N/A General purpose digital I/O
92 PC3 IO67 N/A General purpose digital I/O
Rev.4.3 Page 13 of 50 www.ghielectronics.com
GHI Electronics,LLC ChipworkX User Manual
Pin-Out Description
Name
No.
MINI9261I
AT91SAM9261S
H/W Name
ChipworkX IO2
nd
Feature
ChipworkX
Pin Description
93 PC4 IO68 N/A General purpose digital I/O
94 PC5 IO69 N/A General purpose digital I/O
95 GND9 Connect to Ground
96 PC6 IO70 N/A General purpose digital I/O
97 PC7 IO71 N/A General purpose digital I/O
98 PC8 IO72
COM2
Serial port (UART) TXD transmit signal (Out) for COM2.
99 PC9 IO73 Serial port (UART) RXD receive signal (In) for COM2.
100 PC10 IO74 N/A General purpose digital I/O
101 MAC_INT(PC11)* Leave unconnected. Reserved for ChipworkX's Ethernet PHY use.
102 PC12 IO76
COM3
Serial port (UART) TXD transmit signal (Out) for COM3.
103 PC13 IO77 Serial port (UART) RXD receive signal (In) for COM3.
104 NAND_CS(PC14)* Leave unconnected. Reserved for ChipworkX's NAND Flash use.
105 NAND_BSY(PC15)* Leave unconnected. Reserved for ChipworkX's NAND Flash use.
106 3.3V_6 Connect to 3.3 volt source.
107 PA0 IO0
SPI1
SPI master bus interface MISO signal (Master In Slave Out)
for SPI1.
SPI1 is shared with
SD card driver, touch
screen controller.
108 PA1 IO1
SPI master bus interface MOSI signal (Master Out Slave In)
for SPI1.
109 PA2 IO2 SPI master bus interface SCK signal (Clock)for SPI1.
110 DataFlash_CS (PA3)* Leave unconnected. Reserved for ChipworkX's DataFlash use.
111 PA4 IO4 N/A General purpose digital I/O
112 PA5 IO5 N/A General purpose digital I/O
113 GND10 Connect to Ground
114 PA6 IO6
SDCard_
CS
Used as a Chip Select signal for SPI-based SD/MMC card communication.
115 PA7 IO7
I2C
(open drain pin) I2C Interface SDA
116 PA8 IO8 (open drain pin) I2C Interface SCL
117 PA9 IO9
COM1
Serial port (UART) RXD receive signal (In) for COM1.
118 PA10 IO10 Serial port (UART) TXD transmit signal (Out) for COM1.
119 PA11 IO11 N/A General purpose digital I/O
120 PA12 IO12
COM3
HW HS
Serial port (UART) RTS hardware handshaking signal for COM3.
121 PA13 IO13 Serial port (UART) CTS hardware handshaking signal for COM3.
122 PA14 IO14 N/A General purpose digital I/O
123 PA15 IO15 N/A General purpose digital I/O
124 3.3V_7 Connect to 3.3 volt source.
125 PA16 IO16 N/A General purpose digital I/O
126 PA17 IO17 N/A General purpose digital I/O
127 PA18 IO18
Down
Button
General purpose digital I/O
and TinyBooter/Firmware Down Button (Check hardware design consideration).
128 PA19 IO19 N/A General purpose digital I/O
129 PA20 IO20
Select
Button
General purpose digital I/O
and TinyBooter/Firmware Select Button (Check hardware design consideration).
130 PA21 IO21 N/A General purpose digital I/O
131 GND11 Connect to Ground
132 PA22 IO22 N/A General purpose digital I/O
133 PA23 IO23 Up Button
General purpose digital I/O
and TinyBooter/Firmware Up Button (Check hardware design consideration).
134 PA24 IO24 N/A General purpose digital I/O
Rev.4.3 Page 14 of 50 www.ghielectronics.com
GHI Electronics,LLC ChipworkX User Manual
Pin-Out Description
Name
No.
MINI9261I
AT91SAM9261S
H/W Name
ChipworkX IO2
nd
Feature
ChipworkX
Pin Description
135 PA25 IO25 N/A General purpose digital I/O
136 PA26 IO26 N/A General purpose digital I/O
137 PA27 IO27 N/A General purpose digital I/O
138 PA28 IO28 N/A General purpose digital I/O
139 PA29 IO29 N/A General purpose digital I/O
140 PA30 IO30 N/A General purpose digital I/O
141 PA31 IO31 N/A General purpose digital I/O
142 3.3V_8 Connect to 3.3 volt source.
143 PB0 IO32
LCD
V-Sync
TFT Display, Vertical sync.
144 PB1 IO33
LCD
H-Sync
TFT Display, Horizontal sync.
145 PB2 IO34 LCD CLK TFT Display, Clock.
146 PB3 IO35
LCDDEN /
BMS
General purpose digital I/O.
Some LCDs may operate using the LCD Enable pin.
This pin is multiplexed with BMS (Boot Mode Select)signal. Care should be taken
during reset time. and it should not be set high on reset. For more information
about BMS, check AT91SAM9261S user manual.
147 PB4 IO36 PWM PWM feature is mainly utilized to control the LCD back light illumination.
148 PB5 IO37 N/A General purpose digital I/O
149 PB6 IO38
TOUCH
IRQ
If TSC2046 touch controller chip (similar to the one on the Development System) is
used then wire this pin to PENIRQ at the controller's side (pin 11). Refer to
ChipworkX Development System schematic.
TSC2046's communication interface is SPI. (connect to SPI1 on ChipworkX)
150 PB7 IO39 N/A General purpose digital I/O
151 GND12 Connect to Ground
152 PB8 IO40 LCD B0 TFT Display, Blue signal bit 0.
153 PB9 IO41 LCD B1 TFT Display, Blue signal bit 1.
154 PB10 IO42 LCD B2 TFT Display, Blue signal bit 2.
155 PB11 IO43 LCD B3 TFT Display, Blue signal bit 3.
156 PB12 IO44 LCD B4 TFT Display, Blue signal bit 4.
157 PB13 IO45 N/A General purpose digital I/O
158 1WIRE_EEPROM (PB14)* Leave unconnected. Reserved for ChipworkX's EEPROM use.
159 PB15 IO47 N/A General purpose digital I/O
160 3.3V_9 Connect to 3.3 volt source.
161 PB16 IO48 LCD G0 TFT Display, Green signal bit 0.
162 PB17 IO49 LCD G1 TFT Display, Green signal bit 1.
163 PB18 IO50 LCD G2 TFT Display, Green signal bit 2.
164 PB19 IO51 LCD G3 TFT Display, Green signal bit 3.
165 PB20 IO52 LCD G4 TFT Display, Green signal bit 4.
166 PB21 IO53 N/A General purpose digital I/O
167 PB22 IO54
TOUCH
CS
If TSC2046 touch controller chip (similar to the one on the Development System) is
used then wire this pin to CS at the controller's side (pin 15). Refer to ChipworkX
Development System schematic.
TSC2046's communication interface is SPI. (connect to SPI1 on ChipworkX)
168 PB23 IO55 LCD R4 TFT Display, Red signal bit 4.
169 GND13 Connect to Ground
170 PB24 IO56 LCD G5 TFT Display, Green signal bit 5.
171 PB25 IO57 LCD R0 TFT Display, Red signal bit 0.
172 PB26 IO58 LCD R1 TFT Display, Red signal bit 1.
Rev.4.3 Page 15 of 50 www.ghielectronics.com
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