ADS1293: HOW TO USE THE ADS1293 IN STREAMING MODE??

Hi again i've tried using streaming mode and  9.2.2 5-Lead ECG Application of the datasheet,  i've tried to read from the DATA LOOP register but i don't know if the data are right, is there a way to verify the DATA? and other question is how can i read the CHANNEL DATA without using the streaming mode?

I think the datasheet is not friendly with the SPI description part and this is an important part.

this is the code i've tried to use:

//------------------------------------------------------------------------------
// void TI_ADS1293_SPIStreamReadReg(uint8_t *buffer, uint8_t count)
//
// DESCRIPTION:
// Special read function for reading status, pace and ecg data registers of selected
// channels. Channels to be read must be selected in CH_CNFG before calling this function.
// Data Loop Register read is extended "count+1" times where "count" is number of source bytes
// enabled in CH_CNFG. Data read are deposited sequentially starting at address "buffer"
// until "count" bytes have been read.
//------------------------------------------------------------------------------
void TI_ADS1293_SPIStreamReadReg(uint8_t *buffer, uint8_t count)
{
uint8_t i, inst;

TI_ADS1293_CSn_PxOUT &= ~TI_ADS1293_CSn_PIN; // /CS enable

inst = ADS1293_READ_BIT | TI_ADS1293_DATA_LOOP_REG; // read from data loop register

while (!(UCA1IFG&UCTXIFG)); // Wait for TXBUF ready
UCA1TXBUF = inst; // Send register address

for(i=0; i<count; i++)
{
while (!(UCA1IFG&UCTXIFG)); // Wait for TXBUF ready
UCA1TXBUF = 0; // Dummy write so we can read data

while (UCA1STAT & UCBUSY); // Wait for TX complete
*(buffer+i) = UCA1RXBUF; // Read register data
}

TI_ADS1293_CSn_PxOUT |= TI_ADS1293_CSn_PIN; // /CS disable

}

Forcing the input to a known value such as GND and attaching a probe to the serial data output is a manual way of verifying that you are at least getting output data. It will not read a flat zero due to small amounts of noise in the system.

If you have not already, I would recommend reading the entire programming section, 8.5. Figure 29. Shows the SPI interface timing protocol including how to address registers to directly read/write. Take a look at section 8.6 as well which shows the register map section, including the address to read specific ECG channel data.