Holtek HT8 Easy DEV User manual

HT8 Easy DEV User’s Guide
Revision: V1.00 Date: May 24, 2019

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Table of Contents
1. General Description......................................................................................... 3
1.1 Main Features ........................................................................................................................3
1.2 Hardware Description.............................................................................................................3
2. e-link On-Chip Debug Support – OCDS ........................................................ 4
2.1 Software Introduction .............................................................................................................4
2.2 Hardware Introduction............................................................................................................5
3. e-Link In Circuit Programming Function – ICP ............................................. 7
3.1 Software Introduction .............................................................................................................7
3.2 Hardware Introduction............................................................................................................7
4. Pin Assignment and Schematic ..................................................................... 8
4.1 DEV16NSOP025....................................................................................................................9
4.2 DEV16NSOP002..................................................................................................................10
4.3 DEV20NSOP019 ................................................................................................................. 11
4.4 DEV20SSOP004 .................................................................................................................12
4.5 DEV24SSOP175..................................................................................................................13
4.6 DEV28SSOP185 .................................................................................................................14
4.7 DEV28SSOP195..................................................................................................................15

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1. General Description
1.1 Main Features
• Directly connects to the e-Link without need for wiring
• Locates on the e-Socket (ESKT40DIPC) for programming using the e-WriterPro
• Three power supply options: 5V(USB)/3.3V/VDD(e-Link)
• Preload breathing light (LED)DEMO CODE, providing board status at a glance
• Compact board – a PAD hole distance multiple of 100mil, allows for convenient usage
1.2 Hardware Description
The following illustrations show whether or not OCDSCK and OCDSDA are pin-shared with ICPCK
and ICPDA respectively.
• When OCDSCK and OCDSDA are not pin-shared with the ICPCK and ICPDA:
e-Link Interface
Micro USB
Power Selection
IO Port
OCDS or ICP Selection
LED Jumper
IO Port
OCDS EV
OCDS or ICP Selection

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• When OCDSCK and OCDSDA are pin-shared with the ICPCK and ICPDA:
LED Jumper
e-Link Interface
Micro USB
Power Selection
IO Port IO Port
OCDS EV
2. e-link On-Chip Debug Support – OCDS
2.1 Software Introduction
(1) Download the software from the Holtek ocial website to obtain relevant information.
Download path: MCU Development Tools — Software — ICE Software — HT-IDE3000
(2) After the HT-IDE3000 installation has completed, the Holtek HT8OCDS-ICE User’s Guide can be
accessed from its menu.
(3) Update the e-Link to the e-Link OCDS mode using the HT-IDE3000 software.

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2.2 Hardware Introduction
(1) e-Link HT8OCDS Pin Assignment
(2) Hardware Connection Schematic Diagram - using the DEV16NSOP002 as an example
The jumper socket
close to the OCDSCK
USB
OCDS
The jumper socket
close to the OCDSDA

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Connect to the USB port for programming using the HT-IDE3000. If problems are encountered, refer to
the HT-IDE3000 User’s Guide.
• If the connection is successful, the following message will pop up.
• If the connection fails or there is no connection the following message will pop up.

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3. e-Link In Circuit Programming Function – ICP
3.1 Software Introduction
(1) Download the software from the Holtek ocial website to obtain relevant information.
Download path: MCU Development Tools — Software — Programmer Software — HOPE3000 for
e-Link.
(2) After the HOPE3000 e-Link installation has completed the User’s Guide can be accessed from the menu.
(3) Update the e-Link to the e-Link ICP mode using the HOPE3000 e-Link software.
3.2 Hardware Introduction
(1) e-Link ICP Pin Assignment

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(2) Hardware Connection Schematic Diagram – uses the DEV16NSOP002 as an example
USB
ICP The jumper socket
close to the ICPCK
The jumper socket
close to the ICPDA
The e-Link is connected to the USB port for programming. If the connection is successful, a prompt will
be generated informing the user that the writter is connected.. If problems are encountered, refer to the
HOPE3000 e-Link User’s Guide.
4. Pin Assignment and Schematic
No. Part No. OCDS EV VDD VSS OCDSDA OCDSCK ICPDA ICPCK LED
1 DEV16NSOP025 HT66V0025 1 16 9 8 15 PA0 4PA7 3PA5
2 DEV16NSOP002 HT66V002
No. Part No. OCDS EV VDD VSS OCDSDA/ICPDA OCDSCK/ICPCK LED
3 DEV20NSOP019 HT66V019 20 1 5 PA0 7PA2 13 PA7
4 DEV20SSOP004 HT66V004 20 1 5 PA0 7PA2 13 PA7
5 DEV24SSOP175 HT66V0175 24 1 5 PA0 9PA2 15 PA7
6 DEV28SSOP185 HT66V0185 28 1 5 PA0 11 PA2 17 PA7
7 DEV28SSOP195 HT66V0195
PCB Di󰀨erence Comparison Table

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4.1 DEV16NSOP025
• Pin Assignment – size: 20mm×40mm
• Schematic

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4.2 DEV16NSOP002
• Pin Assignment - size: 20mm×40mm
• Schematic

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4.3 DEV20NSOP019
• Pin Assignment – size: 20mm×40mm
• Schematic
P3

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4.4 DEV20SSOP004
• Pin Assignment – size: 20mm×40mm
• Schematic

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4.5 DEV24SSOP175
• Pin Assignment – size: 20mm×50mm
• Schematic

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4.6 DEV28SSOP185
• Pin Assignment – size: 20mm×50mm
• Schematic

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4.7 DEV28SSOP195
• Pin Assignment – size: 20mm×50mm
• Schematic

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Copyright©2019 by HOLTEK SEMICONDUCTOR INC.
The information appearing in this Data Sheet is believed to be accurate at the time
of publication. However, Holtek assumes no responsibility arising from the use of
the specications described. The applications mentioned herein are used solely
for the purpose of illustration and Holtek makes no warranty or representation that
such applications will be suitable without further modification, nor recommends
the use of its products for application that may present a risk to human life due to
malfunction or otherwise. Holtek's products are not authorized for use as critical
components in life support devices or systems. Holtek reserves the right to alter
its products without prior notication. For the most up-to-date information, please
visit our web site at http://www.holtek.com.