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Hi, I was using Motorola's 68000 to boot 2181. Now I have to load the 2191 DSP using 68000. In 2181 booting was done using IDMA. The structure of DMA is different in the 2191. There are 2 DMA mode: 1. Direcr DMA mode 2. Host port DMA mode. Now to use descriptor based DMA tranfer we have to load the I/O space with the appropriate DMA descriptors. But in host port mode access cannot be made to I/O space. Than how is booting done using host DMA mode. If anyone has an idea about booting using host port mode, please let me know how to set up booting using host port. Sriram |
Booting using host port
Started by ●May 21, 2002
