17 Aug
2017
17 Aug
'17
2:49 p.m.
On 17 August 2017 at 15:38, Michael Mrozek EvilDragon@openpandora.org wrote:
- The timings are DIFFERENT when running with 400MHz (DDR3-800) and
often not in the datasheets.
The datasheet of the RAM does specify the timings to be used for DDR3-800, and we are using them. These timings are also the same as for the single-rank ram.
- Also, if we're running at low speed, the DLL can interfere with the
RAM. This can be disabled via Mode-Register
Uhh, no, the DLL should normally always be enabled.
DLL-disabled mode is only for running ram at speeds lower than the minimum clock frequency (333 MHz), and the timings in that mode are unspecified.