SPI with CC2530

Ajit_Wadekar

Other Parts Discussed in Thread: Z-STACK

Hello Everyone,

I am using Z-Stack HA, here I need to do SPI Communication between two controllers, I have tried it with using SPI on UART1 by disabling HAL_LCD, but I am unable to achieve the communication also i am not getting the required clock.

Can anyone help me with the Sample code for the same.

I have attached my code here.

static void SPI_Init(void)
{
PERCFG |= BV(1);
P1SEL |= BV(6);
P1SEL |= BV(5);
P1SEL |= BV(4);
P1SEL |= BV(7);
P1DIR |= BV(6);
P1DIR |= BV(5);
P1DIR |= BV(4);
P1DIR &= ~BV(7);
P2SEL &= ~0x20;
U1GCR = 11;
U1BAUD = 216;
U1CSR   = 0x00;
U1UCR   = 0x00;
U1GCR   = 0x00;
U1GCR |= BV(5);
U1GCR |= BV(4);
U1CSR |= 0x40;
}

static void SPI_TX_Data(void)
{
U1DBUF = data;
while( !(U1CSR & BV(1)) );

}

over 11 years ago

0 YiKai Chen over 11 years ago

Guru 735695 points

Your SPI_TX_Data should be like

void SPI_TX_Data(uint8 data)
{
U1CSR &= ~(BV(2) | BV(1));
U1DBUF = data;
while( !(U1CSR & BV(1)) );
}

0 Ajit_Wadekar over 11 years ago in reply to YiKai Chen

Mastermind 7620 points

Thank you for reply sir.

Sir are my other settings appropriate because I am unable to get proper clock signal.

0 YiKai Chen over 11 years ago in reply to Ajit_Wadekar

Guru 735695 points

You should see clock output if you use my SPI_TX_data function on clock pint.

0 Ajit_Wadekar over 11 years ago in reply to YiKai Chen

Mastermind 7620 points

Sir I have solved the clock problem but there is some issue with SPI initialization, if i just initialize the SPI it starts sending data on MOSI pin.
What could be the issue?

0 Ajit_Wadekar over 11 years ago in reply to Ajit_Wadekar

Mastermind 7620 points

Sorry for the inconvenience I have rectified the problem.

Thank you sir.

0 YiKai Chen over 11 years ago in reply to Ajit_Wadekar

Guru 735695 points

You are welcome.

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SPI with CC2530