User manual
GHI Electronics,LLC Embedded Master User Manual
Embedded Master Products
signals to SV3 header. This can be used to connect to almost any LCD of your choice!
(GHI support is required).
You should not connect more than one display to the system.
2.1.10 SV1 header
This header has the 3 most common serial interfaces (SPI1, I2C and UART) exposed. It
also includes 3.3V and ground pins. This header can be used to connect to other
circuits. The pinout is compatible with UEXT used by Olimex and; therefore, a circuit
designed with UEXT pinout can be used with this header.
Some example are the MP3 decoder board and the RF transmitter/receiver.
For I2C, the development system already has pull-up resistors, on SCL and SDA.
SV1 Header
Header Pin # Function
1 3.3V
2 GND
3 E29/P2.8 or P4.22 TFT rev./UART_TXD2
4 E28/P2.9 or P4.23 TFT rev./UART_RXD2
5 E11/P0.28/I2C_SCL
6 E12/P0.27/I2C_SDA
7 E25/P0.17/SPI1_MISO
8 E24/P0.18/SPI1_MOSI
9 E27/P0.15/SPI1_SCK
10 E26/P0.16/SPI1_SSEL
2.1.11 Analog
Both analog inputs (ADC) and analog output (DAC) are available on this header. Analog
input 3 (AD3) is multiplexed with Analog output (DAC) and, therefore, the user must
choose which feature should be used for this pin.
Note: These pins are used for touch screen on TFT systems. Use analog pins on SV4
instead.
Rev. 2.06 TFT Page 16 of 102 www.ghielectronics.com