Overview
Design & Development
Software & Tools
Sample Code
Models
ECAD Models
Schematic symbols, PCB footprints, and 3D CAD models from SamacSys can be found by clicking on the CAD Model links in the Product Options table. If a symbol or model isn't available, it can be requested directly from SamacSys.

Support
Support Communities
FAQs
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Can I change the interrupt priority level for H8/Tiny or H8/300L?
No it is not possible to change the priority level. However it is possible to set the priority level of an interrupt request by software. To make the interrupt priority level higher, one can enable interrupt requests during the interrupt handling. This will make the pending/new interrupt a ...
Mar 18, 2009 -
What is the maximum speed of the serial ports of H8/300L ?
Most of the serial ports available on the H8/300L family can operate in either synchronous or asynchronous ( UART ) mode. In sync mode the maximum data rate is 2 Mbps with a 16 MHz crystal and in async mode the maximum data rate is 250 kbaud at 16 MHz.
Mar 18, 2009 -
How do I put my H8 300SLP device into boot mode ?
To put the device into boot mode you should follow the instructions given in the ROM section of the Hardware manual. The example below shows how to boot the H8/38024F: TEST0 - Low Level.; Port 9.50 - Low Level ; Port 3.41 - High Level.Once these conditions have been ...
Mar 18, 2009