OUMEX STM32-LCD Development Board User Manual

: June 5, 2024
: OUMEX

OUMEX STM32-LCD Development Board

INTRODUCTION:

STM32-LCD is a development prototype board with an STM32F103ZE micro- controller from STMicroelectronics. This powerful microcontroller supports various serial interfaces such as USB, USART, SPI. In addition, you will find also an accelerometer, JTAG, TFT LCD, mini SD/MMC card connector on this board and most of the GPIOs are on extension headers where you can connect your additional circuits. All this allows you to build a diversity of powerful applications to be used in a wide range of situations.

BOARD FEATURES:

Microcontroller – STM32F103ZE – high-performance ARM® Cortex™-M3 32-bit RISC core operating at a 72 MHz frequency, high-speed embedded memories (Flash memory – 512 Kbytes and SRAM – 64 Kbytes), and an extensive range of enhanced I/Os and peripherals connected to two APB buses.
JTAG connector
EXT connector
UEXT40 connector
UEXT1 connector
UEXT2 connector
EXT_PWR connector
Mini SD/MMC
Mini USB
LCD TFT 320×240 pixels colored with touch screen
Power source connector
Accelerometer
8 MHz crystal oscillator
Reset circuit
Clock circuit
PCB: FR-4, 1.5 mm (0,062″), solder mask, silkscreen component print
Dimensions 79.2×57.6 mm (3.12×2.27)”

ELECTROSTATIC WARNING:

The STM32-LCD board is shipped in protective anti-static packaging. The board must not be subject to high electrostatic potentials. General practice for working with static sensitive devices should be applied when working with this board.

BOARD USE REQUIREMENTS:

Cables: The required cables depend on the programmer/debugger that you use. Additionally, you might need USB mini cable for USB connection
Hardware: You need a JTAG or SWD debugger or programmer to be able to program the board. The board has a standard 20-pin JTAG connector and typical layout (further detailed later in the document).
You may check on our products ARM-JTAG-COOCOX, ARM-USB-OCD-H, and ARM-USB- TINY-H.

PROCESSOR FEATURES:

STM32-LCD use a High-density performance line ARM-based 32-bit MCU with these features:

Core: ARM 32-bit Cortex™-M3 CPU
72 MHz maximum frequency, 1.25 DMIPS/MHz (Dhrystone 2.1) performance at 0 wait state memory access
Single-cycle multiplication and hardware division
Memories
512 Kbytes of Flash memory
64 Kbytes of SRAM
Flexible static memory controller with 4 Chip Select. Supports Compact Flash, SRAM, PSRAM, NOR and NAND memories
LCD parallel interface, 8080/6800 modes
Clock, reset and supply management
2.0 to 3.6 V application supply and I/Os
POR, PDR, and programmable voltage detector (PVD)
4-to-16 MHz crystal oscillator
Internal 8 MHz factory-trimmed RC
Internal 40 kHz RC with calibration
32 kHz oscillator for RTC with calibration
Low power
Sleep, Stop and Standby modes
VBAT supply for RTC and backup registers
3 × 12-bit, 1 µs A/D converters (up to 21 channels)
Conversion range: 0 to 3.6 V
Triple-sample and hold capability
Temperature sensor
2 × 12-bit D/A converters
DMA: 12-channel DMA controller
Supported peripherals: timers, ADCs, DAC, SDIO, I2Ss, SPIs, I2Cs and USARTs
Debug mode
Serial wire debug (SWD) & JTAG interfaces
Cortex-M3 Embedded Trace Macrocell™
112 fast I/O ports
112 I/Os, all mappable on 16 external interrupt vectors, all 5 V-tolerant except for analog inputs
11 timers
four 16-bit timers, each with up to 4 IC/OC/PWM or pulse counter and quadrature (incremental) encoder input
2 × 16-bit motor control PWM timers with dead-time generation and emergency stop
2 × watchdog timers (Independent and Window)
SysTick timer: a 24-bit down counter
2 × 16-bit basic timers to drive the DAC
13 communication interfaces
2 × I2C interfaces (SMBus/PMBus)
5 USARTs (ISO 7816 interface, LIN, IrDA capability, modem control)
3 SPIs (18 Mbit/s), 2 with I2S interface multiplexed
CAN interface (2.0B Active)
USB 2.0 full speed interface
SDIO interface
CRC calculation unit, 96-bit unique ID

BLOCK DIAGRAM:

OUMEX STM32-LCD Development Board-
fig-1

MEMORY MAP:

OUMEX STM32-LCD Development Board-fig-2

SCHEMATIC:

OUMEX STM32-LCD Development Board-fig-3

BOARD LAYOUT

OUMEX STM32-LCD Development Board-fig-4

POWER SUPPLY CIRCUIT:
STM32-LCD can take power from four sources:

Power connector – 4V – 6V DC.
BAT_PWR from EXT_PWR – 4V DC.
+5V_J-LINK from JTAG connector
+5V_USB from USB connector
The programmed board power consumption is about 200 mA.

RESET CIRCUIT:

STM32-LCD reset circuit includes R8 (10k), R69 (560 Ohm), C28 (100nF) pin 15 of JTAG connector, EXT pin 32, UEXT40 pin 32 and STM32F103ZE pin 25 (NRST).

CLOCK CIRCUIT:
Quartz crystal 8 MHz is connected to STM32F103ZE pin 23 (OSC_IN) and pin 24 (OSC_OUT).
Quartz crystal 32.768 kHz is connected to STM32F103ZE pin 8 (PC14/OSC32_IN) and pin 9 (PC15/OSC32_OUT).

JUMPER DESCRIPTION:

Boot mode selection pins	Boot Mode	Aliasing
BOOT1	BOOT0
x	0	Main Flash memory
0	1	System memory
1	1	Embedded SRAM

INPUT/OUTPUT:
– LCD TFT 320×240 pixels colored with touch screen.

EXTERNAL CONNECTORS DESCRIPTION:

UEXT1

Pin #	Signal Name
1	3.3V
2	GND
3	USART1_TX
4	USART1_RX
5	I2C1_SCL1
6	I2C1_SDA1
7	SPI1_MISO
8	SPI1_MOSI
9	SPI1_SCK
10	SPI1_NSS

UEXT2

Pin #	Signal Name
1	3.3V
2	GND
3	USART2_TX
4	USART2_RX
5	I2C1_SCL2
6	I2C1_SDA2
7	SPI2_MISO
8	SPI2_MOSI
9	SPI2_SCK
10	SPI2_NSS

OUMEX STM32-LCD Development Board-fig-8

Pin #	Signal Name	Pin #	Signal Name
1	3.3 V	2	GND
3	PE0	4	PE1
5	PE5	6	PE6
7	PC6	8	PC7
9	PC13	10	PB5
11	3.3 V	12	GND
13	+5V_USB	14	VIN
15	PG15	16	PG14
17	PG13	18	PG12
19	PG11	20	PG10
21	PG9	22	PG8
23	PG7	24	PG6
25	PG5	26	PG4
27	PG3	28	PG2
29	PG1	30	PG0
31	VBAT	32	RST
33	GND	34	PD6
35	PD12	36	PD11
37	PB2	38	USB_P
39	PA1	40	PA8

UEXT40

OUMEX STM32-LCD Development Board-fig-9

Pin #	Signal Name	Pin #	Signal Name
1	3.3 V	2	GND
3	USART1_TX	4	USART1_RX
5	I2C1_SCL1	6	I2C1_SDA1
7	SPI1_MISO	8	SPI1_MOSI
9	SPI1_SCK	10	SPI1_NSS
11	3.3 V	12	GND
13	+5V_USB	14	VIN
15	PF15	16	PF14
17	PF13	18	PF12
19	PF11	20	PF10
21	PF9	22	PF8
23	PF7	24	PF6
25	PF5	26	PF4
27	PF3	28	PF2
29	PF1	30	PF0
31	3.3V_A	32	RST
33	AGND	34	ADC12_IN8
35	VREF+	36	ADC12_IN9
37	SPI1_NSS	38	ADC12_IN14
39	SPI1_SCK	40	ADC12_IN15

JTAG:
The JTAG connector allows a debugger or programmer to talk via a JTAG (Joint Test Action Group) port directly to the core. Instructions may be inserted and executed by the core thus allowing STM32F103ZE memory to be programmed with code and executed step by step by the host software.

Pin #	Signal Name	Pin #	Signal Name
1	3.3V	2	3.3V
3	TRST	4	GND
5	TDI	6	GND
7	TMS	8	GND
9	TCK	10	GND
11	pull-down	12	GND
13	TDO	14	GND
15	RST	16	GND
17	pull-down	18	GND
19	+5V J-LINK	20	GND

USB

Pin #	Signal Name
1	+5V_USB
2	USBDM
3	USBDP
4	NC
5	GND

PWR

Pin #	Signal Name
1	VIN (4 – 6) V DC
2	GND

SD/MMC

Pin #	Signal Name
1	SD_D2
2	SD_D3
3	SD_CMD
4	VDD (3.3V)
5	SD_CLK
6	GND
7	SD_D0
8	SD_D1
9	Not connected
10	Not connected
11	Not connected
12	Not connected

MECHANICAL DIMENSIONS

AVAILABLE DEMO SOFTWARE

EW-ARM general demo code – the code of the initial STM32-LCD demo
EW-ARM Demo code for MOD-GSM and MOD-GSM-EDGE – (high speed) GSM modules connected to STM32-LCD

ORDER CODE: STM32-LCD – assembled and tested board

How to order?
You can order directly from us or from any of our distributors.
Please check our website https://www.olimex.com for more info.

Revision history:
Manual revision: Rev. Initial, May 2009 Rev. A, June 2011 – changed schematically Rev. B, October 2011 – added more detailed mechanical dimensions
Rev. C, May 2014 – updated board schematic, added board revision history, updated disclaimer, updated links Board revision: Rev. Initial, May 2009 Rev. A, May 2014

The analog GND got properly connected to the digital GND through a 0 Ohm resistor
Fixed the JTAG label (was “JATG” before)
The LCD GND got properly connected
The cathodes of the LCD’s backlight got connected to GND
C1 i C3 is moved further away from the LCD connector
The accelerometer is changed from LISxx to SMB380
Added RC filter to the power supply of SMB380

Disclaimer:

2014 Olimex Ltd. Olimex®, logo, and combinations thereof, are registered trademarks of Olimex Ltd. Other product names may be trademarks of others and the rights belong to their respective owners.
The information in this document is provided in connection with Olimex products. No license, express or implied or otherwise, to any intellectual property right is granted by this document or in connection with the sale of Olimex products.
It is possible that the pictures in this manual differ from the latest revision of the board.

The product described in this document is subject to continuous development and improvements. All particulars of the product and its use contained in this document are given by OLIMEX in good faith. However, all warranties implied or expressed including but not limited to implied warranties of merchantability or fitness for purpose are excluded. This document is intended only to assist the reader in the use of the product. OLIMEX Ltd. shall not be liable for any loss or damage arising from the use of any information in this document or any error or omission in such information or any incorrect use of the product.

This evaluation board/kit is intended for use for engineering development, demonstration, or evaluation purposes only and is not considered by OLIMEX to be a finished end-product fit for general consumer use. Persons handling the product must have electronics training and observe good engineering practice standards. As such, the goods being provided are not intended to be complete in terms of required design-, marketing-, and/or
manufacturing-related protective considerations, including product safety and environmental measures typically found in end products that incorporate such semiconductor components or circuit boards.

Olimex currently deals with a variety of customers for products, and therefore our arrangement with the user is not exclusive. Olimex assumes no liability for applications assistance, customer product design, software performance, or infringement of patents or services described herein.

THERE IS NO WARRANTY FOR THE DESIGN MATERIALS AND THE COMPONENTS USED TO CREATE STM32-LCD. THEY ARE CONSIDERED SUITABLE ONLY FOR STM32-LCD.