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The following alternative design approaches were considered by this project but then discarded for some reason:
None
3.5. Test Plan
3.6. Secure Download Area
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The i.MXRT1050 EVK board.
Micron M25P32 SPI Flash Memory, as a separate chip.
Connect the SPI Flash memory via the "SD TF to TF Flexible Card Extension cable Extender Adapter" attached to the TF Card Slot
J20. Details of those connection are as follows:
SPI Memory Signal/Function | J20 Pin# | MCU Signal | MCU PAD |
CS#/Chip Select | 5 | LPSPI1_PCS0 | GPIO_SD_B0_01 |
SCLK/Clock Input | 3 | LPSPI1_SCK | GPIO_SD_B0_00 |
SI/Serial Data Input | 7 | LPSPI1_SDO | GPIO_SD_B0_02 |
SO/Serial Data Output | 8 | LPSPI1_SDI | GPIO_SD_B0_03 |
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