oddWires IOT-Bus JTAG¶
This IoT-Bus module provides JTAG debugging for the oddWires IoT-Bus Io and oddWires Proteus IoT-Bus boards (can be used with other boards too, see wiring connections below). The board uses the FT232H to provide a USB controller with JTAG support. Both debugging and flashing is possible using this port. Vendor information…
Configuration¶
You can configure debugging tool using debug_tool option in “platformio.ini” (Project Configuration File):
[env:myenv]
platform = ...
board = ...
debug_tool = iot-bus-jtag
If you would like to use this tool for firmware uploading, please change upload protocol:
[env:myenv]
platform = ...
board = ...
debug_tool = iot-bus-jtag
upload_protocol = iot-bus-jtag
More options:
Drivers¶
- Windows:
See https://community.platformio.org/t/esp32-pio-unified-debugger/4541/20
- Mac:
macOS contains default FTDIUSBSerialDriver driver which conflicts with debug tools which are based on this chip. FTDI Chip company recommends removing this default driver from a system. Everything should work after system rebooting. See detailed instruction in official application note (Page 16, Section 4: Uninstalling FTDI Drivers on OS X) AN134: FTDI Drivers Installation guide for MAC OS X
- Linux:
Please install “udev” rules 99-platformio-udev.rules. If you already installed them before, please check that your rules are up-to-date or repeat steps.
Wiring Connections¶
IOT-Bus JTAG Pin |
Board JTAG Pin |
Description |
|---|---|---|
3V3 |
VCC |
Positive Supply Voltage — Power supply for JTAG interface drivers |
GND |
GND |
Digital ground |
12 |
TDI |
Test Data In pin |
14 |
TMS |
Test Mode State pin |
13 |
TCK |
JTAG Return Test Clock |
15 |
TDO |
Test Data Out pin |
EN |
RESET |
Connect this pin to the (active low) reset input of the target CPU (EN for ESP32) |
Platforms¶
Name |
Description |
|---|---|
Espressif Systems is a privately held fabless semiconductor company. They provide wireless communications and Wi-Fi chips which are widely used in mobile devices and the Internet of Things applications. |
Frameworks¶
Name |
Description |
|---|---|
Arduino Wiring-based Framework allows writing cross-platform software to control devices attached to a wide range of Arduino boards to create all kinds of creative coding, interactive objects, spaces or physical experiences. |
|
Espressif IoT Development Framework. Official development framework for ESP32. |
|
Simba is an RTOS and build framework. It aims to make embedded programming easy and portable. |
Boards¶
Note
For more detailed board information please scroll tables below by horizontal.
Name |
Platform |
Debug |
MCU |
Frequency |
Flash |
RAM |
|---|---|---|---|---|---|---|
External |
ESP32 |
240MHz |
4MB |
320KB |
||
External |
ESP32 |
240MHz |
4MB |
320KB |
||
External |
ESP32 |
240MHz |
4MB |
320KB |
||
External |
ESP32 |
240MHz |
4MB |
320KB |
||
External |
ESP32 |
240MHz |
4MB |
320KB |
||
External |
ESP32 |
240MHz |
4MB |
320KB |
||
External |
ESP32 |
240MHz |
4MB |
320KB |
||
On-board |
ESP32 |
240MHz |
4MB |
320KB |
||
External |
ESP32 |
240MHz |
4MB |
320KB |
||
External |
ESP32 |
240MHz |
4MB |
320KB |
||
External |
ESP32 |
240MHz |
4MB |
320KB |
||
External |
ESP32 |
240MHz |
4MB |
320KB |
||
External |
ESP32 |
240MHz |
4MB |
320KB |
||
External |
ESP32 |
240MHz |
4MB |
320KB |
||
External |
ESP32 |
240MHz |
4MB |
320KB |
||
External |
ESP32 |
240MHz |
4MB |
320KB |
||
External |
ESP32 |
240MHz |
4MB |
320KB |
||
External |
ESP32 |
240MHz |
4MB |
320KB |
||
External |
ESP32 |
240MHz |
4MB |
320KB |
||
External |
ESP32 |
240MHz |
4MB |
320KB |
||
External |
ESP32 |
240MHz |
4MB |
320KB |
||
External |
ESP32 |
240MHz |
4MB |
320KB |
||
External |
ESP32 |
240MHz |
4MB |
320KB |
||
External |
ESP32 |
240MHz |
4MB |
320KB |
||
External |
ESP32 |
240MHz |
4MB |
320KB |
||
External |
ESP32 |
240MHz |
4MB |
320KB |
||
External |
ESP32 |
240MHz |
4MB |
320KB |