sforkowany z mirror/meshtastic-firmware
eink bootloader finished
rodzic
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@ -1,5 +1,7 @@
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# You probably don't want to use this script, it programs a custom bootloader build onto a nrf52 board
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set -e
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BOOTDIR=/home/kevinh/development/meshtastic/Adafruit_nRF52_Bootloader
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nrfjprog --eraseall -f nrf52
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@ -9,7 +11,7 @@ nrfjprog --eraseall -f nrf52
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echo Programming bootloader and soft device
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# the following ling incorrectly enables reset pin, because the running code rewrites it
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nrfjprog --program $BOOTDIR/_build/build-ttgo_eink/ttgo_eink_bootloader-0.3.2-122-gf6bfaac-dirty_s140_6.1.1.hex -f nrf52
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nrfjprog --program $BOOTDIR/_build/build-ttgo_eink/ttgo_eink_bootloader-0.3.2-123-g4f9022d-dirty_s140_6.1.1.hex -f nrf52
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# this generates an intel hex file that can be programmed into a NRF52 to tell the adafruit bootloader that the current app image is valid
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# Bootloader settings are at BOOTLOADER_SETTINGS (rw) : ORIGIN = 0xFF000, LENGTH = 0x1000
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@ -51,11 +51,14 @@ feedback to give:
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* remove ipx connector for nfc, instead use two caps and loop traces on the back of the board as an antenna?
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* the i2c RTC seems to talk fine on the i2c bus
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* I've made the serial flash chip work, but if you do a new spin of the board I recommend:
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connect pin 3 and pin 7 of U4 to spare GPIOs on the processor (instead of their current connections),
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This would allow using 4 bit wide interface mode to the serial flash.
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doubling the transfer speed! see example here:
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This would allow using 4 bit wide interface mode to the serial flash - doubling the transfer speed! see example here:
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https://infocenter.nordicsemi.com/topic/ug_nrf52840_dk/UG/nrf52840_DK/hw_external_memory.html?cp=4_0_4_7_4
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Once again - I'm glad you added that external flash chip.
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*/
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/*----------------------------------------------------------------------------
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