Holtek HT32 MCU User manual

HT32 MCU

Starter Kit User Manual

Revision: V1.10 Date: August 12, 2020

Rev. 1.10 2 of 20 August 12, 2020

HT32 MCU

Starter Kit User Manual

Table of Contents

1 Introduction............................................................................................................. 5

Features................................................................................................................................. 5

2 Hardware Layout..................................................................................................... 6

Separating the e-Link32 Lite ............................................................................................................ 7

Serial Wire Debug Interface Switch – S1 ......................................................................................... 8

SWD-10P Connector – CN2, CN6.................................................................................................... 8

e-Link32 Lite Power Option – R8...................................................................................................... 9

e-Link32 Lite Power Option – J8....................................................................................................... 9

Boot Option – Located on the Board Reverse Side.......................................................................... 9

High Speed External Crystal Oscillator (HSE) Option ..................................................................... 9

Low Speed External Crystal Oscillator (LSE) Option ..................................................................... 10

USB D+/D- Option .......................................................................................................................... 10

MCU Power Jumper – J1................................................................................................................ 10

UART Option Jumper – J2.............................................................................................................. 10

e-Link32 UART Connector – CN8....................................................................................................11

Extension Connector CN4-1 ............................................................................................................11

Extension connector CN4-2............................................................................................................ 12

Micro USB Type B Connector – CN5.............................................................................................. 13

3 Connection between the e-Link32 Lite and the Target Board .......................... 14

4 Schematics............................................................................................................ 15

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HT32 MCU

Starter Kit User Manual

Table of Contents

List of Tables

Table 1. SWD-10P Connector................................................................................................................... 8

Table 2. Extension Connector 1...............................................................................................................11

Table 3. Extension Connector 2.............................................................................................................. 12

Table 4. Micro USB Type B Connector ................................................................................................... 13

Rev. 1.10 4 of 20 August 12, 2020

HT32 MCU

Starter Kit User Manual

List of Figures

Figure 1. HT32 Starter Kit......................................................................................................................... 5

Figure 2. HT32 Starter Kit Block Diagram ................................................................................................ 6

Figure 3. HT32 Starter Kit Layout – using the ESK32-30501 V2.0 as an example .................................. 7

Figure 4. SWD-10P Connector ................................................................................................................. 8

Figure 5. Extension Connector 1 .............................................................................................................11

Figure 6. Extension Connector 2 ............................................................................................................ 12

Figure 7. Micro USB Type B Connector.................................................................................................. 13

Figure 8. Connection between the e-Link32 Lite V2.0 and the Target Board ......................................... 14

Figure 9. Connection between e-Link32 Lite V2.3 and Target Board ..................................................... 14

Figure 10. e-Link32 Lite V2.0.................................................................................................................. 16

Figure 11. e-Link32 Lite V2.2 .................................................................................................................. 17

Figure 12. e-Link32 Lite V2.3.................................................................................................................. 18

Figure 13. HT32F52352 Target Board – ESK32-30501.......................................................................... 19

Rev. 1.10 5 of 20 August 12, 2020

HT32 MCU

Starter Kit User Manual

1 Introduction

List of Figures

11 Introduction

The HT32 Starter Kit is based around the 32-bit Arm®Cortex®-M0+/M3 high performance

microcontroller and is designed to assist users to get up and running with the Holtek 32-bit device

range as quickly as possible.

Standard C language programs can be developed using the integrated development environment

from Keil μVision and IAR EWARM. Using this foundation, Holtek also provides a comprehensive

function library to avoid complicated lower level function development in order to allow designers

to focus their time on their specic application development. Using a simple USB cable connection,

users only have to connect their PC to the integrated hardware debug interface (e-Link32 Lite

Serial-Wire Debugger) to automatically download the programs and immediately commence debug

operations.

e-Link32 Lite

CMSIS-DAP

Debug Adapter

Target MCU

Tool Part No.

Figure 1. HT32 Starter Kit

Features

▆Uses the HT32 high performance microcontrollers

Integrated Timer, I2C, SPI, USART, UART, 12-bit A/D converter, USB and I2S etc. Refer to the

datasheet of the corresponding MCU for details.

▆Comprises Target Board and e-Link32 Lite Serial-Wire Debugger

▆Can be used for the testing and development of many external devices

▆Can use either the Target Board USB connector or the e-Link32 Lite USB connector to supply power

Rev. 1.10 6 of 20 August 12, 2020

HT32 MCU

Starter Kit User Manual

2 Hardware Layout

22 Hardware Layout

I/O Extension-62P

I/O Extension-60P

USB LED

State LED

SWD

switch

SWD-10P

8 MHz

32.768 kHz

HT32 MCU

ARM Cortex-

M0+/M3

Microcontroller

LED1 LED2 Power

5V-to-3.3V

Regulator

Power

Jumper

reset

Micro

USB

UART

Jumper

Micro

USB

e-Link32

MCU

3.3V

LDO

Adjustment

SWD-10P

Voltage

translation

UART

e-Link32 Lite

CMSIS-DAP

Target Board

Figure 2. HT32 Starter Kit Block Diagram

Rev. 1.10 7 of 20 August 12, 2020

HT32 MCU

Starter Kit User Manual

2 Hardware Layout

Figure 3. HT32 Starter Kit Layout – using the ESK32-30501 V2.0 as an example

Separating the e-Link32 Lite

Not Separated (Default) Separated

Rev. 1.10 8 of 20 August 12, 2020

HT32 MCU

Starter Kit User Manual

2 Hardware Layout

Serial Wire Debug Interface Switch – S1

S1 Description

Connect the SWD interface between the e-Link32 Lite and the Target MCU

– default setting

Disconnect the SWD interface between the e-Link32 Lite and the Target MCU

SWD-10P Connector – CN2, CN6

CN2 is the Serial Wire Debug interface connector on the e-Link32 Lite side, while CN6 is on the

Target Board side.

Figure 4. SWD-10P Connector

Table 1. SWD-10P Connector

Pin No. Description Pin No. Description

1 VDD 2 SWDIO

3 GND 4 SWCLK

5 GND 6 NC

7 NC 8 NC

9 GND 10 Reset

Rev. 1.10 9 of 20 August 12, 2020

HT32 MCU

Starter Kit User Manual

2 Hardware Layout

e-Link32 Lite Power Option – R8

R8 Description

Pin 1 on the CN2 connector on the e-Link32 Lite side is used as the input. The

reference voltage is supplied through this pin to the voltage conversion chip – default

setting

Note that if the e-Link32 Lite has not been separated, the 3.3V on the Target Board

will have been connected to CN2-1 through the PCB wire connection

Pin 1 on the CN2 connector on the e-Link32 Lite side is used as the output. Here the

e-Link32 Lite voltage conversion chip is xed using 3.3V as the reference voltage.

Note that the 3.3V voltage on the Target Board has been connected to CN2-1

through the PCB wire connection, therefore this option is not allowed if the e-Link32

Lite has not been separated

Only the e-Link32 Lite V2.0 version has the R8 option.

e-Link32 Lite Power Option – J8

J8 Description

Pin 1 on the CN2 connector on the e-Link32 Lite side is used as the input. The

reference voltage is supplied through this pin to the voltage conversion chip – default

setting

Note that if the e-Link32 Lite has not been separated, the 3.3V on the Target Board

will be connected to CN2-1 through the S1 switch and the PCB wire connection

Pin 1 of the CN2 connector on the e-Link32 Lite side is used as the output. Here the

e-Link32 Lite voltage conversion chip is xed using the 3.3V as the reference voltage

Note that the 3.3V on the Target Board will be connected to CN2-1 through the S1

switch and the PCB wire connection. If the e-Link32 Lite has not been separated,

users should switch the S1 to the OFF position to use this option

Only the e-Link32 Lite V2.2 or V2.3 version has the J8 option.

Boot Option – Located on the Board Reverse Side

R18 Description

1 or NC – MCU boots from main ash – default setting

0 – MCU boots from bootloader – ISP

High Speed External Crystal Oscillator (HSE) Option

R23 & R24 Description

Open, HSE I/O pins disconnected from CN4 – default setting

Short, HSE I/O pins connected to CN4 pins 9 and 10. Y2 must be removed.

The designators on the ESK32-30105 (HT32F12366 SK) are R21 and R22.

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HT32 MCU

Starter Kit User Manual

2 Hardware Layout

Low Speed External Crystal Oscillator (LSE) Option

R21 & R22 Description

Open, LSE I/O pins disconnected from CN4 – default setting

Short, LSE I/O pins connected to CN4 pins 31 and 32. X1 must be removed.

The designators on the ESK32-30105 (HT32F12366 SK) are R23 and R24.

USB D+/D- Option

R26 & R27 Description

Open, USB D+/D- pins disconnected from the CN4 – default setting

Short, USB D+/D- pins connected to the CN4 pins 55 and 56.

The early Starter Kit board or its Target MCU does not have an integrated USB or its USB D+/D-

are not bonded with the GPIO, therefore this option is not available.

MCU Power Jumper – J1

J1 Description

The MCU VDD pin is connected to the 3.3V power – default setting

The MCU VDD pin is disconnected from the 3.3V power

The jumper is useful when it is required to measure the MCU power consumption.

UART Option Jumper – J2

The Starter Kit arranges a group of the Target MCU UART to be used as external communication

interfaces, which can connect to the host computer or other devices. The Target MCU RX pin has

the option of connecting to the e-Link32 UART TX pin or to the extension connector, CN4_6:

RS232_TX.

J2 Description

The MCU UART RX is connected to the extension connector, CN4_6: RS232_TX

– default setting

The MCU UART RX is connected to the e-Link32 UART TX

Table of contents

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