DS90UB933-Q1: ds90ub933 use gpo3 as clk in and gpo2 as clk out for isp, gpo0 for fsync, gpo1 for rst

xue chuanzheng

Part Number: DS90UB933-Q1

hardware:

ds90ub933 use gpo3 as clk in and gpo2 as clk out for isp, gpo0 for fsync, gpo1 for rst, how to config the registers of ds90ub933

0 Hamzeh Jaradat over 4 years ago

Hello Xue,

what is the paired DES?

Also, are you planning to get these signals forwarded through the DES, or you want to generate the logics only in the SER?

0 xue chuanzheng over 4 years ago in reply to Hamzeh Jaradat

Deser is DS90UB954.

0 Hamzeh Jaradat over 4 years ago in reply to xue chuanzheng

Hello Xue,

If you use the 933 in External Oscillator mode, you will feed the CLK to GPIO3, and GPIO2 will work as CLKout.

To use GPIO1 for RST signal, you need to configure register 0x0D bit [4] = 1, and bit [7] to the logic you want.

GPIO0, FSync signal can't be generated in the SER locally. It makes also no sense. This signal must come from the DES or the SoC.

0 xue chuanzheng over 4 years ago in reply to Hamzeh Jaradat

Hello Hamzeh,

For 933 in External Oscillator mode, Do I need any config for register to enable gpio 2 and gpio3’s function for clk

0 Hamzeh Jaradat over 4 years ago in reply to xue chuanzheng

Hello Xue,

in this mode, you do not need extra configs for GPIO2 and GPIO3.