esp-idf/components/soc
Angus Gratton 17adb40ca8 bootloader: Calculate SHA256 hash of image on every boot
Makes app image booting more reliable (256-bit rather than 8-bit verification.)

Some measurements, time to boot a 655KB app.bin file and run to app_main() execution.

(All for rev 1 silicon, ie no 340ms spurious WDT delay.)

80MHz QIO mode:
before = 300ms
after = 140ms

40MHz DIO mode:
before = 712ms
after = 577ms

40MHz DIO mode, secure boot enabled
before = 1380ms
after = 934ms

(Secure boot involves two ECC signature verifications (partition table, app) that take approx 300ms each with 80MHz CPU.)
2017-07-19 18:31:59 +10:00
..
esp32 bootloader: Calculate SHA256 hash of image on every boot 2017-07-19 18:31:59 +10:00
include/soc heap: Rename memory "tags" to "types" to avoid confusion w/ old tag allocator API 2017-07-10 17:46:03 +08:00
test soc: add source code of rtc_clk, rtc_pm 2017-04-11 15:45:54 +08:00
component.mk heap: Refactor heap regions/capabilities out of FreeRTOS 2017-07-10 17:46:03 +08:00