PSOC 4 De-Multiplexer SPIM UDB Component Timing issues ???? | Cypress Semiconductor
PSOC 4 De-Multiplexer SPIM UDB Component Timing issues ????
I have a second problem which i think needs a seperate thread.
I got a SSD1306 OLED Display running connected to a PSOC 4.
Now i wanted to connect two. Yes I know the SPI Bus is able to control more than one Device. but the displays i have dont have a chip select input -.- its really sad. so i thought its running via SPIM_UDB so i would hook MOSI and SCK to two de multiplexer and then switch between them with a control register. The D/C and RESET pins i control already seperate.
NOPE not working. I got a dissortet Transmission and also missing bytes while Data transmit to the RAM. Then i thought i could use a analog switch but the editor dislikes my idea.
Are there any possibilities to do that ? Maybe that my port choosing is not quite effective for the demux.
Ah, if i rewire the ports in the TopDesign each Display works seperately . ( if i hookup each set of pins directly to the UDB component).
here the connection chart:
SCK_1 = 1.5
D/C_1 = 1.2
SCK_2 = 0.1
D/C_2 = 4.2