C++ (Cpp) spi_read_data Examples

Example #1

File: p2498_wvga_nt35510.c Project: 4Fwolf/lcm_drivers

static unsigned int lcm_compare_id(void)
{
	unsigned int    id1 = 0;
	unsigned int    id2 = 0;
	unsigned int    id = 0;


        config_gpio();

	SET_RESET_PIN(1);
	MDELAY(20);
	SET_RESET_PIN(0);
	MDELAY(20);
	SET_RESET_PIN(1);
	MDELAY(120);

	set_lcm_register(0xF000,0x55);             
	set_lcm_register(0xF001,0xAA);             
	set_lcm_register(0xF002,0x52);             
	set_lcm_register(0xF003,0x08);             
	set_lcm_register(0xF004,0x01);
	
	send_ctrl_cmd(0xc500);
	id1 = spi_read_data();  //spi_read_data();
	MDELAY(20);
	send_ctrl_cmd(0xc501);
	id2 = spi_read_data();  //spi_read_data();

	id = (id1<<8)|id2;


	return (LCM_ID == id)?1:0;
}

Example #2

File: mirf.c Project: webdev1001/nRF24L01

// Reads mirf_PAYLOAD bytes into data array
void mirf_get_data(uint8_t *data) {
	mirf_CSN_lo; // Pull down chip select
	spi_transfer(R_RX_PAYLOAD); // Send cmd to read rx payload
	spi_read_data(data, mirf_PAYLOAD); // Read payload
	mirf_CSN_hi; // Pull up chip select
	mirf_config_register(STATUS,(1<<RX_DR)); // Reset status register
}

Example #3

File: h40d07_wvga_nt35510.c Project: 4Fwolf/lcm_drivers

static unsigned int lcm_compare_id(void)
{
	unsigned int    id1 = 0;
	unsigned int    id2 = 0;
	unsigned int    id = 0;
//return 1 ;//amy0503 add 
	#if 1
	SET_RESET_PIN(1);
	MDELAY(20);
	SET_RESET_PIN(0);
	MDELAY(20);
	SET_RESET_PIN(1);
	MDELAY(120);//LK@0314,at least 120ms
	#endif
	set_lcm_register(0xF000,0x55);             
	set_lcm_register(0xF001,0xAA);             
	set_lcm_register(0xF002,0x52);             
	set_lcm_register(0xF003,0x08);             
	set_lcm_register(0xF004,0x01);
	
	send_ctrl_cmd(0xc500);
	id1 = spi_read_data();
	MDELAY(20);
	send_ctrl_cmd(0xc501);
	id2 = spi_read_data();

	id = (id1<<8)|id2;

#ifdef BUILD_UBOOT
	printf("lcd_id1=0x%x,lcd_id2=0x%x,lcd_id=0x%x  \r\n",id1,id2,id);
#else
	printk("lcd_id1=0x%x,lcd_id2=0x%x,lcd_id=0x%x  \r\n",id1,id2,id);
#endif
	
    return (LCM_ID == id)?1:0;

}

Example #4

File: mirf.c Project: webdev1001/nRF24L01

// Reads an array of bytes from the MiRF registers.
void mirf_read_register(uint8_t reg, uint8_t *value, uint8_t len) {
	mirf_CSN_lo;
	spi_transfer(R_REGISTER | (REGISTER_MASK & reg));
	spi_read_data(value, len);
	mirf_CSN_hi;
}