1834 - MachXO2: When using the device in Dual-Boot configuration mode, what address should the 'Golden' bitstream image (.bit file) be stored in the external Slave-SPI device?<br>

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• 681 - LatticeECP2: How to setup LatticeECP2 dual boot application to load the golden bitstream instead of primary bitstream?

  Description: A dual boot application using the LatticeECP2 device has both a golden bitstream act as the golden image, and a primary bitstream act as user image which is periodically updated in SPI Flash. In a typical dual boot configuration ...

• 1663 - MachXO2: How can I force to boot from the “golden boot” image in the external SPI Flash when using the dual boot feature?

  The MachXO2 has a dual boot feature that works in an automatic mode. If the image loaded from the internal flash is found to have an issue (CRC error), or if the internal flash is erased, then the part will automatically try to load the golden image ...

• 3817 - LatticeXP2: Is the download/configuration time from Internal/External SPI Flash different while using Dual Boot Mode in LatticeXP2 device?

  While using Dual Boot Mode, the configuration time (time required for the bitstream to get configured inside the device) from Internal Flash is less. Data transfer is faster because the Internal Flash interface with SRAM is parallel, whereas it is a ...

• 1422 - Can I configure the configuration SRAM memory with the Slave SPI Mode(SSPI)?<br>

  You can not configure the configuration SRAM memory directly with the Slave SPI Mode(SSPI), nor can you read back SRAM memory with the SSPI. But you can use the SSPI to configure the SRAM memory through a REFRESH instruction. The effect is the same ...

• 103 - Can the LatticeXP2 use encrypted configuration bitstreams supplied by an external SPI Master or SPI Slave?

  The LatticeXP2 provides two methods to supply non-volatile programming images into the FPGA configuration memory. The first method employs an on-chip flash memory that is read and loaded at power-up or image refresh. The second method allows an ...