MSP430F4784: oled display interface

sai devaraj m

Part Number: MSP430F4784

Hi,

Currently I'm using MSP430F4784. I'm trying to interface OLED display to view data. Display interface using I2C.

issue here is when I run program in debug mode that to in step in only display works.

not working in step over also. After POR display is not working not showing anything even while running load is not taking.

but in step in debug I'm getting appropriate load. As I'm using OLED I made a delay before sending commands to display.

But no changes happened.

What could be the issue?

Please help me out with this.

Thanks in advance

0 Evan Lew over 4 years ago

Hi sai devaraj m,

Can you clarify your problem? I'm unable to understand exactly what is broken.

We can help you debug issues related to I2C and MSP430, however if the issue is with configurating the OLED display that is outside of our expertise.

Regards,

Evan

0 sai devaraj m over 4 years ago in reply to Evan Lew

Thanks for your response,

In transmit when I try to debug, as per the datasheet once UCB1TXBUF is filled, UCTXSTT becomes 0.

but the bit is 1 even after giving stop condition(UCTXSTP). And also the stop condition is not becoming 0,

program getting halted here // while (UCB1CTL1 & UCTXSTP);

regards,

sai

0 Evan Lew over 4 years ago in reply to sai devaraj m

Thanks for clarifying.

I would start my by running an example. Once you've got the example working you can build it out to work for your design. Take a look here:

Regards,

Evan

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