MSP430I2031: use 4 key and we use Double click & long press keyboard example

Hiren Thumar

Intellectual 470 points

Part Number: MSP430I2031
Other Parts Discussed in Thread: MSP430I2021

dear sir,

help for example code

use 4 key and we use Double click & long press keyboard example.

over 6 years ago

0 Nathan Siegel over 6 years ago

TI__Genius 10980 points

Hi,

Could you please provide more information on what you are trying to do? For example, what keyboard are you using? What is it using to interface with the MSP430?

Regards,
Nathan

0 Hiren Thumar over 6 years ago in reply to Nathan Siegel

Intellectual 470 points

Dear sir,

Thanks you for reply.

i want to implement 4 button logic in msp 430.

press 1 button = led 1 on

press 2 button = led 2 on

press 3 button = led 3 on

press 4 button = led 4 on

press 1 and 2 button = led 5 on

press 4 and 5 button = led 6 on

this type of logic implement in msp430I2031 using gpio interrupt and also reducing debouching error.

please provide this type of example.

0 Nathan Siegel over 6 years ago in reply to Hiren Thumar

TI__Genius 10980 points

Hi,

For GPIO interrupt examples, please see the code examples on the MSP430I2031 product page: www.ti.com/.../toolssoftware

msp430i20xx_P1_01 and msp430i20xx_P1_02 should show you how you can implement button presses. For pressing multiple at once, please take a look at the following thread that discusses this: e2e.ti.com/.../297183

Regards,
Nathan

0 Hiren Thumar over 6 years ago in reply to Nathan Siegel

Intellectual 470 points

i am working on msp430i2021.

i am used timer interrupt and gpio interrupt.

i read user guide.in vector table gpio interrupt is highest priority. but i require timer interrupt set highest piority and second highest set is gpio intterupt.

so please provide to help hoe to manage this.

0 Nathan Siegel over 6 years ago in reply to Hiren Thumar

TI__Genius 10980 points

Hi,

The User's Guide does not contain the interrupt vector priorities for the GPIO ports or the timer because they vary across the family of devices that the User's Guide covers. The datasheet provides these priorities, and it shows that both TimerA instances have a higher priority than the I/O ports. This information can be found in Table 6-3 of the datasheet. So this should work for what you have described that you are trying to do.

Regards,
Nathan

0 Hiren Thumar over 6 years ago in reply to Nathan Siegel

Intellectual 470 points

thanks for provide help

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MSP430I2031: use 4 key and we use Double click & long press keyboard example