USCI0_A and USCI0_B ISRs

Alb

Hello all,

I'm working with a msp4302410 and I need to config USCI0_A as UART and USCI0_B as I2C master. I think I'm almost done but I have a doubt, the two modules share the same TX and RX interrupt so it seems to me that I need to check in the ISR the source (A or B). Am I on the right track?

tnx

over 17 years ago

0 SRIHK over 17 years ago

Intellectual 975 points

use one ISR for UART or I2C that is use interrupts for UART and use directly UCB0TXBUF and UCB0RXBUF without interrupts bye or if u wanna use both then make a choice by using switch or if conditions

0 Brandon08 over 17 years ago

TI__Mastermind 24520 points

Alb said:

Hello all,

I'm working with a msp4302410 and I need to config USCI0_A as UART and USCI0_B as I2C master. I think I'm almost done but I have a doubt, the two modules share the same TX and RX interrupt so it seems to me that I need to check in the ISR the source (A or B). Am I on the right track?

tnx

Yes. Check out this code: "msp430xG46x_uscia0_uart_uscia0b0_i2c_1.c" in this zip file: http://www.ti.com/lit/zip/slac118

0 Alb over 17 years ago in reply to Brandon08

Prodigy 20 points

Brandon said:

Yes. Check out this code: "msp430xG46x_uscia0_uart_uscia0b0_i2c_1.c" in this zip file: http://www.ti.com/lit/zip/slac118

Thank you Brandon, it's exactly what I need.

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USCI0_A and USCI0_B ISRs