QNX RTOS v4 Knowledge Base
QNX RTOS v4 Knowledge Base
| Title |
Sample code for ISA DMA transfers in QNX4 |
| Ref. No. |
QNX.000009379 |
| Category(ies) |
Development |
| Issue |
We are using QNX4, and are having trouble in our program getting DMA transfers on ISA bus to work.
Is there any sample code of how to do this?
|
| Solution |
You should take a look at the free software archives :
http://www.qnx.com/cgi-bin/dir_find.cgi?/usr/free/
at the Das_toolkit. This is an example how to program the 8237 DMA and how to allocate DMA safe memory in QNX.
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