Tool/software:
Hello,
Strongly based on the SDK's GPMC sample code, the GPMC module was set for synchronous communication (at 21.33MHz -192MHz/9-) looking for the following behavior on a write cycle (RE-Rising edge, FE-Falling edge):
RE0: BE1 low, Address/Data set, ADV low, WE low
FE0: CS0 low
RE1:ADV high
FE1: -
RE2: WAIT0 sampling (to be repeated if active until inactive)
FE2: CSn0 high
However, the WAIT0 signal seems to be ignored -for both low and high levels-, as seen in the scope (attached): waveform is the same irrespective of the WAIT0 state. Also attached is a memory dump of the GPMC registers settings.
Should another setting be changed to achieve the sampling of WAIT0 signal?
Regards,
Javier
0x48400018 00000000 00000000 00000000 00000000 00000000 00000000 00000000 0x48400034 00000000 00000000 00000000 00001FF0 484000AC 00000211 00000000 0x48400050 00000000 00000301 00000000 00000000 08601003 00020280 11010100 0x4840006C 02004280 03010202 01010001 00000F68 FFFBFFFB FFFBFFFB FFFBFFFB 0x48400088 00000000 00000000 00001000 00101001 22060514 10057016 010F1111 0x484000A4 8F070000 00000F00 ???????? ???????? ???????? 00000000 00000000 0x484000C0 00001000 00101001 22060514 10057016 010F1111 8F070000 00000F00 0x484000DC ???????? ???????? ???????? 00000000 00000000 00001000 00101001 0x484000F8 22060514 10057016 010F1111 8F070000 00000F00 ???????? ???????? 0x48400114 ???????? 00000000 00000000 00001000 00101001 22060514 10057016 0x48400130 010F1111 8F070000 00000F00 ???????? ???????? ???????? 00000000 0x4840014C 00000000 00001000 00101001 22060514 10057016 010F1111 8F070000 0x48400168 00000F00 ???????? ???????? ???????? 00000000 00000000 00001000 0x48400184 00101001 22060514 10057016 010F1111 8F070000 00000F00 ???????? 0x484001A0 ???????? ???????? 00000000 00000000 00001000 00101001 22060514 0x484001BC 10057016 010F1111 8F070000 00000F00 ???????? ???????? ???????? 0x484001D8 00000000 00000000 00004000 00000000 00000000 00000000 00000000 0x484001F4 00001030 00000000 FFFFF000 00000000 00000000 00000000 00000000 0x48400210 00000000 00000000 00000000 00000000 00000000 00000000 00000000
