On 11/4/19 5:33 PM, Fabio Estevam wrote:
Hi Giulio,
On Thu, Oct 31, 2019 at 9:11 AM Giulio Benetti
<giulio.bene...@benettiengineering.com> wrote:
...in this register and the next one there are parameters like CKEOFF
and ACT2PRE impossible to lead to classic tXXX sdram timing parameters.
I've done this way inspired by stm32-sdram, but maybe U should go back
using i.MXRT names(i.e. PRE2ACT instead of tRP) and list all possible
useful registers in DM as I've done for tRP etc.
What do you think?
I think it is OK to use the i.MXRT names.
Ok
#define TWR_1 0x0
+#define TWR_2 0x1
+#define TWR_3 0x2
+#define TWR_4 0x3
+#define TWR_5 0x4
+#define TWR_6 0x5
+#define TWR_7 0x6
+#define TWR_8 0x7
+#define TWR_9 0x8
+#define TWR_10 0x9
+#define TWR_11 0xA
+#define TWR_12 0xB
+#define TWR_13 0xC
+#define TWR_14 0xD
+#define TWR_15 0xE
+#define TWR_16 0xF
+
+#endif
...is it ok listing every possible value for DM parameter?
I mean, some of them would be 8-bit, this would mean having 256 cases,
that sound very ugly to me.
It doesn't seem necessary to write all 256 cases. I would suggest to
write the direct hex number.
Well, thanks a lot!
Best regards
--
Giulio Benetti
Benetti Engineering sas
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