Key facts
- Brand
- STMicroelectronics
- Model
- AN307
- Category
- Other Electronics
- Documents
- 4
- Languages
- EN
- Last added
- 2012-08-07
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STMicroelectronics AN3070 Application Note Managing Driver Enable Signal
This document addresses the critical timing requirements for the Driver Enable (DE) signal in half-duplex communication protocols like RS-485 and IO-Link. It details how the master device must switch the DE signal to ensure proper reception of slave responses without data collisions.
Read onlineSTMicroelectronics AN307 specifications
| Baud rate for transmission | 230400 baud |
|---|---|
| Stop bits | 1 stop bit |
| DE signal emulation pin | GPIO port C pin 6 (PC6) |
Source: STMicroelectronics AN3070 Application Note Managing Driver Enable Signal
All STMicroelectronics AN307 documents by type
How to use the product for one specific task, with worked examples.
Questions answered in these manuals
Which CPU frequencies are supported for timing measurements?
The examples support CPU frequencies of 72 MHz and 24 MHz.
From: STMicroelectronics AN3070 Application Note Managing Driver Enable Signal
What compilers are used for the firmware examples?
The examples are built with Keil 4.00 and IAR 5.40.
From: STMicroelectronics AN3070 Application Note Managing Driver Enable Signal
What is the address range for the IAP application?
The IAP application is loaded from the Flash memory base address (0x0800 0000) to the 0x0800 OFFF address.
From: STMicroelectronics AN3078 STM32F10x IAP over I2C Application Note
Where should the user application be loaded?
The user application must be loaded from the 0x0800 1000 address to the top Flash memory address.
From: STMicroelectronics AN3078 STM32F10x IAP over I2C Application Note
What precautions are needed when using triacs on inductive loads?
Designers must analyze various control modes and synchronization principles to guarantee correct operation and avoid overloads.
Why should triacs not be fired at zero mains voltage?
Firing at zero voltage can cause the induction to reach saturation, producing the highest transient overloads.