Arm Community
Site
Search
User
Site
Search
User
Groups
Arm Research
DesignStart
Education Hub
Graphics and Gaming
High Performance Computing
Innovation
Multimedia
Open Source Software and Platforms
Physical
Processors
Security
System
Software Tools
TrustZone for Armv8-M
中文社区
Blog
Announcements
Artificial Intelligence
Automotive
Healthcare
HPC
Infrastructure
Innovation
Internet of Things
Machine Learning
Mobile
Smart Homes
Wearables
Forums
All developer forums
IP Product forums
Tool & Software forums
Pelion IoT Platform
Support
Open a support case
Documentation
Downloads
Training
Arm Approved program
Arm Design Reviews
Community Help
More
Cancel
boon wa
Questions
Profile
Achievements
Activity
Groups
Friends
Blog Posts
Questions
Bookmarks
Jump...
Cancel
Not Answered
Keil support T89C51AC3 ??
0
Keil C51 Tools
169
views
1
reply
Latest
over 14 years ago
by
Keil Software Support Intl.
Not Answered
RS232 replecement with NOT gates
0
Microcontroller (MCU)
358
views
7
replies
Latest
over 15 years ago
by
Robert Wey