How to enable SSPI programming in MachX03-9400 Development Board

To enable SSPI programming, this is the generic checklist user should follow through:

1. Enable SPI port in Diamond/Radiant Software Tools
   
1. some device may have Slave SPI port enabled, but it is essential for user to cross-check their project to ensure SSPI port is enabled.
   
2. Do not enable both SSPI/MSPI at the same time.
   
2. Rework Evaluation board to enable SSPI path as needed
   
1. Not all Evaluation Board enable the FTDI, USBN-2B Programming cable path to device SSPI port.
   
2. User should review Evaluation Board User Guide if it able to support SSPI programming mode

Here is an example of MachX03-9400 Development Board setup/rework to enable SSPI programming.

1. Enable SPI connection to JP2 connector by populating 0 ohm resistor to
   
1. MCLK - R76
   
2. SI - R82
   
3. SO - R77
   
4. SN -> SS R160 (Default already connected)
   
5. 5V SPI -> R79
   
2. Do not connect R67 which is for SPI flash. This is require to segregate SPI port from SPI flash
   

After rework, connect Programming cable as below:

1. Connect JP2 - MCLK, SI, SO, SS, 5V SPI, GND to USBN-2B programming cable, following the label stated on USBN-2B.
   
2. Connect FTDI, perform JTAG chain scan.
   
3. Set to Slave SPI programming with CLK Divider 10. Slower Freq is recommended for SPI programming.
   
4. Start program with SSPI.

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