cc1110 UART driver problems [Only Rx and Tx]

I have tested with the UART_BRIDGE example, but it uses this UART driver and I can't make it work.

I am going to try one more time, but with your reference.

Thanks.

I can't make it work, I am trying again the uart_bridge code from Simpliciti1.2.0.

This is my code:

/*----------------------------------------------------------------------------
* Demo Application for SimpliciTI
*
* L. Friedman
* Texas Instruments, Inc.
*----------------------------------------------------------------------------
*/
/******************************************************************************************

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**************************************************************************************************/
#define INDICATOR_TIME_OUT 250;

#include <stdio.h>
#include "bsp.h"
#include "mrfi.h"
#include "nwk_types.h"
#include "nwk_api.h"
#include "nwk_pll.h"
#include "bsp_leds.h"
#ifdef MRFI_CC430
#include "uart_intfc_cc430.h"
#else
#include "uart_intfc.h"
#endif

#include "rf_protocol.h"


#define SMPL_LINKID_USER_UUD ((linkID_t) ~0)

void main (void)
{
/* holds length of current message */
uint8_t len8;
uint16_t len16;

#ifdef LINK_TO
/* the link token */
linkID_t myID = 4;
#else
/* the link token */A
linkID_t myID = 2;
#endif


/* the transmit and receive buffers */
uint8_t rx[MAX_APP_PAYLOAD], tx[MAX_APP_PAYLOAD];

/* holds led indicator time out counts */
uint16_t led_tmr;

BSP_Init( );

addr_t myAddress = {0x79, 0x56, 0x34, myID};

SMPL_Ioctl(IOCTL_OBJ_ADDR, IOCTL_ACT_SET, &myAddress);

SMPL_Init( NULL );

uart_intfc_init( );

/* turn on the radio so we are always able to receive data asynchronously */
SMPL_Ioctl( IOCTL_OBJ_RADIO, IOCTL_ACT_RADIO_RXON, NULL );

/* turn on LED. */
BSP_TURN_ON_LED1( );

tx_send_wait( "Link Established!\r\nReady...\r\n", 29 ); // this works
while(1){

if(len8 = rx_receive( rx, MAX_APP_PAYLOAD ) > 0){ // this return always 0 to len8.
printf("%s",rx);
}
MRFI_DelayMs( 5 );
}
}

And this link is the UART driver specifications:

http://www.ti.com/lit/an/swra306/swra306.pdf

Why are you running a SimpliciTI example instead of the basic stand-alone UART example Niklas referred you to?

The examples works fine running on the SmartRF04EB, but might need modifications based on your HW, which I am not familiar with.

Siri

Hi,

I have tested a lot of things, maybe, I have found the problem.

I put a breakpoint in this interruption function and it never launches this interruption. :

_Pragma("vector=0x13") __near_func __interrupt void UART0_RX_ISR(void){

URX0IF = 0;

uartRxBuffer[uartRxIndex++] = U0DBUF;

printf("%c",uartRxBuffer[uartRxIndex-1]);

if (uartRxIndex >= SIZE_OF_UART_RX_BUFFER) {

uartRxIndex = 0; IEN0 &= ~0x04;

}

}

If I try to send with this interruption function, then it works fine:

_Pragma("vector=0x3B") __near_func __interrupt void UART0_TX_ISR(void){
UTX0IF = 0;
if (uartTxIndex >= SIZE_OF_UART_TX_BUFFER) {
uartTxIndex = 0; IEN2 &= ~0x08; return;
}
U0DBUF = uartTxBuffer[uartTxIndex++];
}

The connection diagram is like this:

Arduino due board                                                     CC1110 mini kit dev
            RX                                      -                                     P0.3
            TX                                      -                                     P0.2
          GND                                    -                                     GND

I think the Uart initialization is correct, because I can send over Uart, but I can't receive.

Can someone help me about this topic?