Commit graph

243 commits

Author SHA1 Message Date
Angus Gratton
18c5cfadae Fix function prototypes 2019-08-13 17:14:16 +10:00
Angus Gratton
eb7ad6ca17 bootloader: Fix SPI dummy clock settings for ESP32S2-beta 2019-08-13 17:14:16 +10:00
Angus Gratton
d5f5fadbee bootloader: Include FreeRTOS component for the FREERTOS_UNICORE header, only 2019-08-13 17:14:16 +10:00
Angus Gratton
309376f51a spi_flash: Force legacy mode for ESP32-S2
Can be removed once IDF-763 is merged
2019-08-13 17:14:16 +10:00
Angus Gratton
8f74271d5d esp_rom: Fail immediately if the wrong SoC's header file is included 2019-08-12 16:57:40 +10:00
Angus Gratton
2f56116db2 Cleanup of previous merge commit 2019-08-12 16:57:40 +10:00
Michael (XIAO Xufeng)
264ffbeb14 timer_group: use the LL 2019-08-09 13:46:31 +08:00
Angus Gratton
04ae56806c Merge branch 'master' into feature/esp32s2beta_update 2019-08-08 15:26:58 +10:00
Angus Gratton
24d26fccde Merge branch 'master' into feature/esp32s2beta_update 2019-08-08 13:44:24 +10:00
fuzhibo
572084821b add Comment for touchpad 2019-08-07 11:39:17 +08:00
fuzhibo
b055bff580 1.update touch driver; 2.update adc/dac driver; 3.add temp sensor driver; 2019-08-05 16:21:18 +08:00
Michael Zimmermann
74a459dd3d make code conform to Wstrict-prototypes
Merges https://github.com/espressif/esp-idf/pull/2937
2019-08-01 16:28:56 +07:00
Anton Maklakov
afbaf74007 tools: Mass fixing of empty prototypes (for -Wstrict-prototypes) 2019-08-01 16:28:56 +07:00
chenjianqiang
d77c74770a bugfix(flash): add flash config in app startup
We fixed some flash bugs in bootloader, but for the users used the old
vrsion bootloader, they can not fix these bugs via OTA, the solution is
add these updates in app startup.

These updates include:
1. SPI flash gpio matrix and drive strength configuration
2. SPI flash clock configuration
3. SPI flash read dummy configuration
4. SPI flash cs timing configuration
5. Update flash id of g_rom_flashchip
2019-07-18 14:40:59 +08:00
Angus Gratton
409181361f Merge branch 'bugfix/fix_flash_read_error_in_dio_26MHz_mode' into 'master'
bugfix(flash): fix flash read error in DIO/26MHz mode

See merge request espressif/esp-idf!5381
2019-07-10 08:13:35 +08:00
chenjianqiang
266baa8839 bugfix(flash): fix flash read error in DIO/26MHz mode 2019-07-08 01:50:07 +00:00
Michael (XIAO Xufeng)
25ab8380c8 ci: support to build esp32s2beta simple examples 2019-07-08 09:16:06 +08:00
chenjianqiang
d6c40c7c1d bugfix(flash): improve spi cs timing settings for flash
cs setup time is recomemded to be 1.5T, and cs hold time is recommended to be 2.5T.
(cs_setup = 1, cs_setup_time = 0; cs_hold = 1, cs_hold_time = 1)
2019-07-05 21:21:17 +08:00
Vikram Dattu
4b42f535ed Add mmu pages available check in non-secure image hash check path.
Made MMU pages available check in `esp_image_format.c`
This now makes it possible to map and process bootoader image as well in chunks when image doesn't fit completely into available free pages.

Signed-off-by: Vikram Dattu <vikram.dattu@espressif.com>
2019-07-01 20:04:15 +00:00
Vikram Dattu
eb99b27f2e Bugfix: ota fails with secure boot on for image size greater than 3.2MB
When an OTA image size is larger than 50 MMU pages (approx. 3.2 MB), secure_boot_generate fails while trying to map it into memory:
https://gitlab.espressif.cn:6688/idf/esp-idf/blob/master/components/bootloader_support/src/esp32/secure_boot.c#L72
Instead of trying to map the whole image, secure boot code should split the image into chunks and map them one by one, like it is done in esp_image_format.c:
https://gitlab.espressif.cn:6688/idf/esp-idf/blob/master/components/bootloader_support/src/esp_image_format.c#L372

Closes https://jira.espressif.com:8443/browse/IDF-709

Signed-off-by: Vikram Dattu <vikram.dattu@espressif.com>
2019-07-01 20:04:15 +00:00
Renz Christian Bagaporo
9edc867c62 bootloader: fix secure boot issues
Do not include bootloader in flash target when secure boot is enabled.
Emit signing warning on all cases where signed apps are enabled (secure
boot and signed images)
Follow convention of capital letters for SECURE_BOOT_SIGNING_KEY variable, since it is
relevant to other components, not just bootloader.
Pass signing key and verification key via config, not requiring
bootloader to know parent app dir.
Misc. variables name corrections
2019-06-28 10:54:21 +08:00
Renz Christian Bagaporo
2adf313838 bootloader_support: move embedding key after component registration
Bootloader build requires verification key to be embedded in the binary.
Under specific configs, this key is generated during build time from the
signing key. Move the key generation to after the component
registration, since non scriptable commands are used in the process
(during early expansion)
2019-06-28 10:50:52 +08:00
Angus Gratton
c8570ffa6d bootloader_support: Add C++ header guards
As reported on forum https://esp32.com/viewtopic.php?f=13&t=11173&p=45470
2019-06-26 11:26:56 +10:00
Hemal Gujarathi
a68c7c21e1 Improve flash encryption documentation and add Development & Release modes
This MR improves existing flash encryption document to provide simplified steps
Adds two new modes for user: Development & Release
Adds a simple example
Supports encrypted write through make command
2019-06-25 23:41:18 +00:00
Angus Gratton
9a412d3a08 Merge branch 'feature/use_new_component_registration_apis' into 'master'
Use new component registration API

See merge request idf/esp-idf!4898
2019-06-25 10:24:11 +08:00
Angus Gratton
5cb71b5213 Merge branch 'feature/add_doc_about_app_desc_t' into 'master'
docs: Add description about the app image

Closes IDF-597

See merge request idf/esp-idf!4912
2019-06-24 18:40:02 +08:00
Renz Christian Bagaporo
9b350f9ecc cmake: some formatting fixes
Do not include bootloader in flash target when secure boot is enabled.
Emit signing warning on all cases where signed apps are enabled (secure
boot and signed images)
Follow convention of capital letters for SECURE_BOOT_SIGNING_KEY
variable, since it is
relevant to other components, not just bootloader.
Pass signing key and verification key via config, not requiring
bootloader to know parent app dir.
Misc. variables name corrections
2019-06-21 19:53:29 +08:00
Renz Christian Bagaporo
9eccd7c082 components: use new component registration api 2019-06-21 19:53:29 +08:00
Konstantin Kondrashov
0ed590640e bootloader: Move some structs to separated file
Moved structures which describe the app image to separated file.

Closes: IDF-597
2019-06-21 18:43:27 +08:00
suda-morris
3f7a571c90 fix errors when ci testing for esp32 2019-06-19 15:31:47 +08:00
Michael (XIAO Xufeng)
1036a091fe spi_flash: support working on differnt buses and frequency 2019-06-18 06:32:52 +00:00
Wang Jia Lin
e2d1c6234f Merge branch 'bugfix/improve_flash_dio_read_timing' into 'master'
bugfix(flash): fix flash dio read mode configuration error on SPI0

See merge request idf/esp-idf!5086
2019-06-14 12:10:46 +08:00
Ivan Grokhotkov
08557be5df Merge branch 'fix/bootloader_region_overlap_update' into 'master'
bootloader: remove duplicate region overlap logic

See merge request idf/esp-idf!5128
2019-06-13 16:07:05 +08:00
Renz Christian Bagaporo
54ef60f26b component: revert some of the dependency corrections
!4452 and !4897 made some ill-advised corrections to dependency info;
revert those in this MR. Handling pre-built binaries as imported
libraries is retained, however.
2019-06-11 18:09:26 +08:00
suda-morris
4a79d750a5 clean up build warnings 2019-06-11 13:07:37 +08:00
Angus Gratton
8d949c3c9d esp32s2beta: Apply new Kconfig names to esp32s2beta
Still using ESP32_xxx prefix on all chips: CORE_DUMP, APP_TRACE

Still using the same config prefix and duplicate names in esp32 & esp32s2beta: SPIRAM, PM
2019-06-11 13:07:37 +08:00
Ivan Grokhotkov
73b30af2b3 confgen.py: don't output compatibility definitions for options which are not defined
For example, if a renamed option CONFIG_NEW is a bool with value "n", kconfiglib will not generate a define for it in the Kconfig file. The define (#define CONFIG_NEW 1) will only be generated if the option is "y" or "m".
However the compatibility definition was always generated: #define CONFIG_OLD CONFIG_NEW. This broke the #ifdef checks which depended on the old option names.
2019-06-11 13:07:37 +08:00
suda-morris
84b2f9f14d build and link hello-world for esp32s2beta 2019-06-11 13:07:37 +08:00
suda-morris
61ce868396 make bootloader_support support esp32s2beta 2019-06-11 13:07:02 +08:00
Angus Gratton
c9bf3a3b17 Merge branch 'bugfix/remove_secure_boot_test_mode' into 'master'
remove secure boot test mode

See merge request idf/esp-idf!5059
2019-06-11 07:25:07 +08:00
Michael (XIAO Xufeng)
c8d967417c bootloader: remove duplicate region overlap logic
(MINOR CHANGE)
2019-06-05 14:43:23 +08:00
Konstantin Kondrashov
399d2d2605 all: Using xxx_periph.h
Using xxx_periph.h in whole IDF instead of xxx_reg.h, xxx_struct.h, xxx_channel.h ... .

Cleaned up header files from unnecessary headers (releated to soc/... headers).
2019-06-03 14:15:08 +08:00
Angus Gratton
30d9ee56fb Merge branch 'feature/config_spi_pins_based_on_efuse_value' into 'master'
feat(psram): config SPI psram pins based on efuse value

See merge request idf/esp-idf!4950
2019-05-31 16:15:56 +08:00
Angus Gratton
31b854e17d Merge branch 'feature/do_not_use_link_groups' into 'master'
Do not use link groups

See merge request idf/esp-idf!4897
2019-05-29 15:18:31 +08:00
Angus Gratton
73b90387cb Merge branch 'bugfix/reset_log_uart_port' into 'master'
esp32: Add reset CONSOLE_UART port

See merge request idf/esp-idf!5011
2019-05-29 14:28:37 +08:00
chenjianqiang
db138ae19b feat(psram): config SPI psram pins based on efuse value 2019-05-28 21:25:16 +08:00
chenjianqiang
d68f1907ef bugfix(flash): improve flash dio read timing
When flash work in DIO Mode, in order to ensure the fast read mode of flash
is a fixed value, we merged the mode bits into address part, and the fast
read mode value is 0 (the default value).
2019-05-28 14:51:04 +08:00
Renz Christian Bagaporo
2c12080049 components: correct dependency information for linking without link groups 2019-05-28 10:51:02 +08:00
hemal.gujarathi
865b24144e remove secure boot test mode 2019-05-23 14:13:08 +05:30
Roland Dobai
1ad2283641 Rename Kconfig options (components/bootloader) 2019-05-21 09:32:55 +02:00
Roland Dobai
997b29a9ca Rename Kconfig options (components/esptool_py) 2019-05-21 09:32:55 +02:00
Roland Dobai
0ae53691ba Rename Kconfig options (components/esp32) 2019-05-21 09:09:01 +02:00
Konstantin Kondrashov
be6f5563b4 esp32: Add reset uart
Fixed the case when the first part of log was missed
this was happened when:
 * CONFIG_CONSOLE_UART_CUSTOM option is selected (UART1)
 * The selected CONSOLE_UART port is used also for the console component
 * in code esp_restart() or abort() functions were called.
2019-05-21 06:18:28 +00:00
Angus Gratton
8c6ff874af Merge branch 'bugfix/custom_log_uart_rx_pin' into 'master'
bootloader_support: Fix UART RXD pin for console output (CUSTOM option)

Closes IDFGH-505

See merge request idf/esp-idf!5009
2019-05-20 13:58:37 +08:00
Konstantin Kondrashov
98c77cebb2 bootloader_support: Fix UART RXD pin for console output (CUSTOM option)
The RXD pin is assigned as input (fix for custom uart option).

Closes: https://github.com/espressif/esp-idf/issues/2843

Closes: IDFGH-505
2019-05-16 11:18:56 +00:00
Renz Christian Bagaporo
477fa49fc0 examples: update idf_as_lib example to use new api 2019-05-14 18:01:14 +08:00
Renz Christian Bagaporo
ffec9d4947 components: update with build system changes 2019-05-13 19:59:17 +08:00
Angus Gratton
fe2565f5d7 Merge branch 'feature/make_bootloader_support_target_dependent' into 'master'
make bootloader_support depend on IDF_TARGET

See merge request idf/esp-idf!4798
2019-04-26 15:36:48 +08:00
suda-morris
3f2d6a0891 make bootloader_support depend on IDF_TARGET
1. move chip-specific code(e.g. encryption) into IDF_TARGET directory
2. splict app-only code to idf directory which won't be compiled into bootloader
2019-04-16 17:37:56 +08:00
Michael (XIAO Xufeng)
562af8f65e global: move the soc component out of the common list
This MR removes the common dependency from every IDF components to the SOC component.

Currently, in the ``idf_functions.cmake`` script, we include the header path of SOC component by default for all components.
But for better code organization (or maybe also benifits to the compiling speed), we may remove the dependency to SOC components for most components except the driver and kernel related components.

In CMAKE, we have two kinds of header visibilities (set by include path visibility):

(Assume component A --(depends on)--> B, B is the current component)

1. public (``COMPONENT_ADD_INCLUDEDIRS``): means this path is visible to other depending components (A) (visible to A and B)
2. private (``COMPONENT_PRIV_INCLUDEDIRS``): means this path is only visible to source files inside the component (visible to B only)

and we have two kinds of depending ways:

(Assume component A --(depends on)--> B --(depends on)--> C, B is the current component)

1. public (```COMPONENT_REQUIRES```): means B can access to public include path of C. All other components rely on you (A) will also be available for the public headers. (visible to A, B)
2. private (``COMPONENT_PRIV_REQUIRES``): means B can access to public include path of C, but don't propagate this relation to other components (A). (visible to B)

1. remove the common requirement in ``idf_functions.cmake``, this makes the SOC components invisible to all other components by default.
2. if a component (for example, DRIVER) really needs the dependency to SOC, add a private dependency to SOC for it.
3. some other components that don't really depends on the SOC may still meet some errors saying "can't find header soc/...", this is because it's depended component (DRIVER) incorrectly include the header of SOC in its public headers. Moving all this kind of #include into source files, or private headers
4. Fix the include requirements for some file which miss sufficient #include directives. (Previously they include some headers by the long long long header include link)

This is a breaking change. Previous code may depends on the long include chain.
You may need to include the following headers for some files after this commit:

- soc/soc.h
- soc/soc_memory_layout.h
- driver/gpio.h
- esp_sleep.h

The major broken include chain includes:

1. esp_system.h no longer includes esp_sleep.h. The latter includes driver/gpio.h and driver/touch_pad.h.
2. ets_sys.h no longer includes soc/soc.h
3. freertos/portmacro.h no longer includes soc/soc_memory_layout.h

some peripheral headers no longer includes their hw related headers, e.g. rom/gpio.h no longer includes soc/gpio_pins.h and soc/gpio_reg.h

BREAKING CHANGE
2019-04-16 13:21:15 +08:00
Anurag Kar
62b0d51c02 Enable secure boot only after encrypting flash
This prevents a device from being bricked in case when both secure boot & flash encryption are enabled and encryption gets interrupted during first boot. After interruption, all partitions on the device need to be reflashed (including the bootloader).

List of changes:
* Secure boot key generation and bootloader digest generation logic, implemented inside function esp_secure_boot_permanently_enable(), has been pulled out into new API esp_secure_boot_generate_digest(). The enabling of R/W protection of secure boot key on EFUSE still happens inside esp_secure_boot_permanently_enable()
* Now esp_secure_boot_permanently_enable() is called only after flash encryption process completes
* esp_secure_boot_generate_digest() is called before flash encryption process starts
2019-04-10 18:17:58 +05:30
Angus Gratton
8e91677701 Merge branch 'bugfix/bootloader_flash_crypt_cnt_ff' into 'master'
flash encryption: reduce FLASH_CRYPT_CNT bit width to 7 bits

See merge request idf/esp-idf!4642
2019-04-09 08:10:06 +08:00
Angus Gratton
4b4cd7fb51 efuse/flash encryption: Reduce FLASH_CRYPT_CNT to a 7 bit efuse field
8th bit is not used by hardware.

As reported https://esp32.com/viewtopic.php?f=2&t=7800&p=40895#p40894
2019-04-03 14:07:20 +11:00
Mahavir Jain
fcff80ecf8 fix cmake build for bootloader 2019-04-01 15:47:01 +05:30
Mahavir Jain
202f689baa bootloader: use mbedTLS for secure boot verification in firmware 2019-04-01 15:46:52 +05:30
morris
709a320f33 move hwcrypto from esp32 to mbedtls 2019-03-26 16:24:22 +08:00
morris
c159984264 separate rom from esp32 component to esp_rom
1. separate rom include files and linkscript to esp_rom
2. modefiy "include rom/xxx.h" to "include esp32/rom/xxx.h"
3. Forward compatible
4. update mqtt
2019-03-21 18:51:45 +08:00
morris
fae39dc326 merge esp_flash_data_types into esp_flash_partitions 2019-03-18 08:51:55 +00:00
Angus Gratton
1cc726b2a3 secure boot: Use mbedtls_sha256() not esp_sha()
Latter is probably compiled into most firmwares already, saves some size.

Ref https://github.com/espressif/esp-idf/issues/3127
2019-03-14 05:56:06 +00:00
Konstantin Kondrashov
509e1264b9 efuse: Fix to pass CI tests 2019-02-28 07:31:29 +00:00
Konstantin Kondrashov
7626145e6d bootloader: Add support efuse component 2019-02-28 07:31:29 +00:00
Ivan Grokhotkov
8cc6226051 soc: define named constants for DPORT_CPUPERIOD_SEL values 2019-02-26 17:07:59 +08:00
Ivan Grokhotkov
178e5b25e6 bootloader: check previously used clock frequency at run time
In the situation when bootloader was compiled for 240MHz, and app was
compiled for 160MHz, and the chip is a revision 0 chip, the
bootloader will assume that the application has also been running at
240MHz. This will cause the chip to lock up later. Modify this to use
a run time check of DPORT_CPUPERIOD_SEL, which indicates which of the
PLL frequencies was used.

Closes https://github.com/espressif/esp-idf/issues/2731.
2019-02-26 17:02:34 +08:00
Konstantin Kondrashov
e916cf52a3 bootloader: Add support of anti-rollback
Added:
* set a secure version in app/bootloader.
* description anti-rollback to ota part
* emulate the secure_version write and read operations
* efuse_em partition.
* a description about a rollback for native_ota_example.

Closes: TW26335
2019-02-14 18:51:43 +08:00
Ivan Grokhotkov
96d0f7f5e2 bootloader: account for load address when mapping cache pages
Bootloader used to calculate the number of cache pages assuming that
load address was aligned, while in reality load address for DROM and
IROM was offset by 0x20 bytes from the start of 64kB page. This
caused the bootloader to map one less page if the size of the image
was 0x4..0x1c less than a multiple of 64kB.

Reported in https://esp32.com/viewtopic.php?f=13&t=6952.
2019-01-19 14:44:55 +08:00
Ivan Grokhotkov
182e917d78 bootloader: fix IROM and DROM swapped in log messages 2019-01-19 14:44:55 +08:00
Konstantin Kondrashov
dde1fd9b94 bootloader: Add support flags for rollback app
Added
* Set actual ota_seq if both ota are init or incorrect.
* Description of rollback
* UT tests

Closes TW15459
2018-12-11 11:54:21 +08:00
Konstantin Kondrashov
f9522a0eb6 bootloader app_update: Refactoring otadata part 2018-12-05 11:20:03 +08:00
Konstantin Kondrashov
3b9cb25fe1 esp32: Add firmware version to app
Added a new structure esp_app_desc_t. It has info about firmware:
version, secure_version, project_name, time/date build and IDF version.
Added the ability to add a custom structure with a description of the firmware.

The esp_app_desc_t is located in fixed place in start of ROM secotor. It is located after structures esp_image_header_t and esp_image_segment_header_t.

app_version is filed from PROJECT_VER variable (if set in custom make file) or PROJECT_PATH/version.txt or git repo (git describe).

Add API to get app_desc from partition.
2018-12-03 16:52:04 +08:00
Ivan Grokhotkov
964f5a91f7 bootloader, esp32: add workaround for Tensilica erratum 572
If zero-overhead loop buffer is enabled, under certain rare conditions
when executing a zero-overhead loop, the CPU may attempt to execute an invalid instruction. Work around by disabling the buffer.
2018-11-19 04:39:35 +00:00
Anurag Kar
1f6622b2d1 CMake : Secure Boot support added 2018-11-06 17:09:55 +05:30
Ivan Grokhotkov
73d1b5a7a0 bootloader: verify that loaded image does not overlap bootloader code
Fixes CVE-2018-18558
2018-10-26 12:44:10 +08:00
Renz Bagaporo
cc774111bf cmake: Add support for test build 2018-10-20 12:07:24 +08:00
Ivan Grokhotkov
bd11965f6c Merge branch 'bugfix/ndebug_build' into 'master'
soc,sdmmc: fix build failures when NDEBUG is used

See merge request idf/esp-idf!3352
2018-10-19 11:55:37 +08:00
Angus Gratton
f53fef9936 Secure Boot & Flash encryption: Support 3/4 Coding Scheme
Includes esptool update to v2.6-beta1
2018-10-16 16:24:10 +11:00
Ivan Grokhotkov
a1f809fcc5 bootloader: provide implementation of abort
ROM definition of `abort` was removed in 9240bbb. The old definition
resulted in a panic due to a jump to a null pointer (abort member in
ROM stub table was zero). The new definition triggers a debug
exception if JTAG is connected, or goes into an infinite loop to be
reset by the WDT.
2018-10-15 15:02:56 +08:00
Angus Gratton
1b272bb77e Merge branch 'bugfix/rom_export_functions' into 'master'
esp32, bootloader: fix issues related to linking order

See merge request idf/esp-idf!3375
2018-10-05 12:40:05 +08:00
Angus Gratton
326d791ebb bootloader: Fix secure boot digest generation for image length where (len%128 < 32) 2018-10-02 15:17:14 +10:00
Ivan Grokhotkov
f694d057be bootloader_support: exclude bootloader_init.c when building app
Depending on link order of libraries, bootloader implementation of
__assert_func could be linked instead of the one provided by newlib.
2018-10-02 01:20:04 +00:00
Angus Gratton
98b42a8b71 Merge branch 'bugfix/disable_coding_scheme_security_features' into 'master'
bootloader: Don't enable secure boot or flash encryption for 3/4 Coding Scheme

See merge request idf/esp-idf!3369
2018-10-02 07:54:11 +08:00
Ivan Grokhotkov
22b840f3df bootloader: don’t reload RTC_FAST DRAM after deep sleep
When CONFIG_ESP32_RTCDATA_IN_FAST_MEM is enabled, RTC data is placed
into RTC_FAST memory region, viewed from the data bus. However the
bootloader was missing a check that this region should not be
overwritten after deep sleep, which caused .rtc.bss segment to loose
its contents after wakeup.
2018-09-29 14:02:16 +08:00
Angus Gratton
ff33406e74 bootloader: Don't enable secure boot or flash encryption for 3/4 Coding Scheme 2018-09-26 18:26:06 +10:00
Sagar Bijwe
48fccbf5dd nvs_flash: Add support for nvs encryption 2018-09-24 11:25:21 +05:30
Renz Christian Bagaporo
d9939cedd9 cmake: make main a component again 2018-09-11 09:44:12 +08:00
Angus Gratton
b355854d4d Merge branch 'master' into feature/cmake 2018-09-05 10:35:04 +08:00
Angus Gratton
2ec0fd8fd6 Merge branch 'feature/signature_verify_updates' into 'master'
secure boot: Support signed app verification without hardware secure boot

See merge request idf/esp-idf!2814
2018-09-04 18:56:47 +08:00
Angus Gratton
e54f3d9616 Merge branch 'bugfix/bootloader_random_in_app' into 'master'
esp32: Allow bootloader_random.h use in app, add esp_fill_random() function

See merge request idf/esp-idf!3124
2018-09-04 10:39:12 +08:00
Konstantin Kondrashov
9c715d7946 bootloader_support: Fix enable rtc_wdt for resolve issue with varying supply
Eliminates the issue with the lock up in the bootloader due to a power drawdown during its operation.

Closes https://github.com/espressif/esp-idf/issues/1814
2018-09-03 05:43:01 +00:00
Angus Gratton
83a179abb0 esp32: Add esp_fill_random() function
Convenience function to fill a buffer with random bytes.

Add some unit tests (only sanity checks, really.)
2018-09-03 04:39:45 +00:00
Angus Gratton
767ec27350 bootloader_support: Move bootloader_random.h to public header directory 2018-09-03 04:39:45 +00:00