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Answer
The external SPI of the Sterling-EWB can be programmed on the DVK using Segger Jflash-SPI.
Use Pinout SPI 20-pin from the Segger site to connect jlink plus to following Sterling-EWB pins.
| JLINK | Sterling-EWB | Sterling-EWB Schematic |
|---|---|---|
| pin 1 - VTref | J10-1 | 3v3 MCU |
| pin 5 - DI | J6-9 | PA7/MICRO_SPI1_MOSI |
| pin 7 - nCS | J6-5 | PA4/MICRO_SPI1_NSS |
| pin 9 - CLK | J6-3 | PA5/MICRO_SPI1_SCK |
| pin 13 - DO | J6-7 | PA6/MICRO_SPI1_MISO |
| pin 15 - nRESET | J10-15 | MICRO_RST_N |