Wiznet WIZ610io User Manual page 8

/* Pseudo Code for Read data of 8bit per packet */
#define data_read_command
uint16 addr; // Address : 16bits
int16 data_len; // Data length :15bits
uint8 data_buf[];
SpiSendData(); // Send data from MCU to W6100
SpiRecvData(); // Receive data from W6100 to MCU
{
ISR_DISABLE(); // Interrupt Service Routine disable
CSoff(); // CS=0, SPI start
// SpiSendData
SpiSendData(((addr+idx) & 0xFF00) >> 8);
SpiSendData((addr+idx) & 0x00FF);
// Data write command + Data length upper 7bits
SpiSendData((data_read_command| ((data_len& 0x7F00) >> 8)));
// Data length bottom 8bits
SpiSendData((data_len& 0x00FF));
// Read data:On data_len> 1, Burst Read Processing Mode.
for(int idx = 0; idx<data_len; idx++)
{
WIZ610io User Manual (WIZnet Co.,Ltd.)
< Read Sequence >
0x00
// Array for data
// Address byte 2
// Address byte 1
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