L
lynch
Guest
We are debugging a PCI board and met some difficulties. The main chip is
PCI 9052(for PCI bus), the local device is SJA1000 (for can bus). We used
8-bit local bus (LAD[7:0]) as data-address multiplexed-mode, and using this
local bus for PCI to communicate with SJA1000. Questions as follow:
1. How to use the pin LBE[3:0], in the 8-bit multiplexed mode.
2. The difficulty I met is I canĄŻt read the register of SJA1000.I
want to know the possible cause and how to solve it.
3. I want to know how to configure the Ą°Local Address Space (0~1) Bus
Region Descriptor Register DescriptionĄą, maybe there is some wrong with the
timing between the PCI9052 and SJA1000.
PCI 9052(for PCI bus), the local device is SJA1000 (for can bus). We used
8-bit local bus (LAD[7:0]) as data-address multiplexed-mode, and using this
local bus for PCI to communicate with SJA1000. Questions as follow:
1. How to use the pin LBE[3:0], in the 8-bit multiplexed mode.
2. The difficulty I met is I canĄŻt read the register of SJA1000.I
want to know the possible cause and how to solve it.
3. I want to know how to configure the Ą°Local Address Space (0~1) Bus
Region Descriptor Register DescriptionĄą, maybe there is some wrong with the
timing between the PCI9052 and SJA1000.