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Initializing external flash SPI speed to SPI_FLASH_MAX_BAUDRATE, instead of using driver default speed (32MHz), before probing JEDEC identifier.

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This commit is contained in:
Pontus Oldberg 2022-12-21 16:33:06 +01:00
parent 2a1bb72797
commit 9f266c361b
2 changed files with 2 additions and 0 deletions
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1
ports/nrf/boards/challenger_840/mpconfigboard.h
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@ -10,6 +10,7 @@
#define SPI_FLASH_MISO_PIN (&pin_P0_11)
#define SPI_FLASH_SCK_PIN (&pin_P0_14)
#define SPI_FLASH_CS_PIN (&pin_P0_08)
#define SPI_FLASH_MAX_BAUDRATE 20000000
#endif
#define CIRCUITPY_AUTORELOAD_DELAY_MS 500

1
supervisor/shared/external_flash/spi_flash.c
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@ -151,6 +151,7 @@ void spi_flash_init(void) {
supervisor_flash_spi_bus.base.type = &busio_spi_type;
common_hal_busio_spi_construct(&supervisor_flash_spi_bus, SPI_FLASH_SCK_PIN, SPI_FLASH_MOSI_PIN, SPI_FLASH_MISO_PIN, false);
common_hal_busio_spi_never_reset(&supervisor_flash_spi_bus);
common_hal_busio_spi_configure(&supervisor_flash_spi_bus, SPI_FLASH_MAX_BAUDRATE, 0, 0, 8);
return;
}