SPI + I2C

[Register 3]

Hi,

 

I'm trying to make a clock with a Tiny RTC module and a iTead 5110 Nokia LCD. I'm using Adafruit RTClib and the energia LCD_5110_SPI.

Each library an device are working fine separately but when put together it stops working, is it possible to have SPI and I2C device working simultaneously?

 

Thanks.

 

[spirilis 1,265]

on the MSP430G2 launchpad?  no, sadly not, the SPI/I2C peripherals share the same line.

On the newer launchpads there is an I2C peripheral in the lower left corner (pins 9 and 10 of the J1 header), and I think there's a SoftwareI2C library floating around to implement I2C in software on those pins too (for the MSP430G2 launchpad).  Might look for that one.  I think @@Rei Vilo wrote it?

[Register 3]

Thanks for your reply. I tried to switch from LCD_5110_SPI to the LCD_5110 library and it freeze as soon as i try to acces to the RTC object. I'm going to ask to Rei Vilo.

 

And yes it's a MSP430G2 with 2553.

 

Regards,

[Rei Vilo 695]

I suggest to go step-by-step and validate each of them.

• Step 1: Try the Nokia 5110 only with hardware SPI
• Step 2: Try the Nokia 5110 only with software SPI
• Step 3: Try the RTC only with hardware I

  

[Register 3]

Thanks for your reply.

 

Seems I made a mistake and forgot

Wire.begin();

when making some cut and past between scripts.... So now it's working with LCD_5110 library, will try to test the SPI version soon.

 

Regards

[Rei Vilo 695]

Glad to know! Congratulations  

[SixSixSevenSeven 23]

Thanks for your reply.

 

Seems I made a mistake and forgot

Wire.begin();

when making some cut and past between scripts.... So now it's working with LCD_5110 library, will try to test the SPI version soon.

 

Regards

We've all made that sort of mistake at some point...

[jdariolopez 0]

hello! could you make this work?