Hello, I am tryong to use to masters to communicate with two accelerometers.
Q1_ I found the following image from Nordic's website that shows SPI0 pins but there is no indication for SPI1's pins . Can someone point this out to me? 
Q2_ I am using the following code and so far Im getting the clock the MOSI and the Chip Select pins right. However my MISO is noisy for both slaves that I am using. What could be the problem beside the connections? Thank You
static void spi_master_init(spi_master_hw_instance_t spi_master_instance,
spi_master_event_handler_t spi_master_event_handler,
const bool lsb)
{
uint32_t err_code = NRF_SUCCESS;
switch (spi_master_instance)
{
case SPI_MASTER_0:
{
spi_master_config_t spi_config0 = SPI_MASTER_INIT_DEFAULT;
spi_config0.SPI_Pin_SCK = 29;
spi_config0.SPI_Pin_MISO = 28;
spi_config0.SPI_Pin_MOSI = 25;
spi_config0.SPI_Pin_SS = 24;
spi_config0.SPI_CONFIG_ORDER = (lsb ? SPI_CONFIG_ORDER_LsbFirst : SPI_CONFIG_ORDER_MsbFirst);
err_code = spi_master_open(spi_master_instance, &spi_config0);
APP_ERROR_CHECK(err_code);
}
break;
case SPI_MASTER_1:
{
spi_master_config_t spi_config1 = SPI_MASTER_INIT_DEFAULT1;
spi_config1.SPI_Pin_SCK = 19;
spi_config1.SPI_Pin_MISO = 28;
spi_config1.SPI_Pin_MOSI = 25;
spi_config1.SPI_Pin_SS = 20;
spi_config1.SPI_CONFIG_ORDER = (lsb ? SPI_CONFIG_ORDER_LsbFirst : SPI_CONFIG_ORDER_MsbFirst);
err_code = spi_master_open(spi_master_instance, &spi_config1);
APP_ERROR_CHECK(err_code);
}
break;
default:
break;
}
.....
int main(void)
{// @brief Function for main application entry.
// Setup bsp module.
bsp_configuration();
spi_master_init(SPI_MASTER_0, spi_master_0_event_handler, false);
spi_master_send_recv(SPI_MASTER_0, Powermode_Set, 2, m_rx_data_spi, 2);
spi_master_send_recv(SPI_MASTER_0, Data_Format, 2, m_rx_data_spi, 2);
//nrf_delay_ms(10);
spi_master_init(SPI_MASTER_1, spi_master_1_event_handler, false);
spi_master_send_recv(SPI_MASTER_1, Powermode_Set, 2, m_rx_data_spi, 2);
spi_master_send_recv(SPI_MASTER_1, Data_Format, 2, m_rx_data_spi, 2);
tx_DARA0=(0x80 | 0x32);//spi_master_close(SPI_MASTER_0);
tx_DARA0=(tx_DARA0|0x40);
for (;; )
{
// if (m_transfer_completed)
// {
// spi_master_send_recv(SPI_MASTER_0, Device, 2, ID,2 );
spi_master_send_recv(SPI_MASTER_0, &tx_DARA0, 1, m_rx_data_spi,8 );
nrf_delay_ms(1);
spi_master_send_recv(SPI_MASTER_1, &tx_DARA0, 1, m_rx_data_spi1,8 );
nrf_delay_ms(1);
}
}