I2S driver - fixed support for 24 and 32-bits, fixed tx/rx at the same time
- Modify sample can test with 24, 32-bits audio
- Add i2s sample README
- simply i2s_push function
- change sample rates, bits per sample, channel on fly
See merge request !483
Feature/btdm ble bt separa
@Jack @snake @igrokhotkov @angus @island please help to review the code.
Separate the bt/ble code. After the separate, can save 15k~25k ram & 240k~460k code size(depending on the menuconfig).
See merge request !684
Split common SPI stuff out of master driver; add slave driver; add workaround for DMA issue.
This merge req mainly adds a slave device. In order to do this, the original master driver is refactored into common code shared by master and slave modes, and a slave driver is added.
The other things added are:
- Added a workaround for a 'feature' of the ESP32 silicon that can lock up the receive DMA channel in some situations. This can only be fixed by resetting *both* DMA channels. The workaround implemented makes sure that the reset only happens when both channels are idle
- Got rid of the automatic choice between register- and DMA-based transfers. The master (and slave) code will now always go for a DMA transfer if a DMA channel is given, and always go for register-based transfers if no DMA channel is given.
- Add in a bunch of fixes for outstanding Github issues.
See merge request !659
Add support 24, 32 bits
@jxmao optimize i2s_zero_buffer
@jxmao correct config support slave mode
@jxmao correct setup pin support tx/rx at the same time
Enhance pin power
@jxmao add dynamic change number of channels
remove nvs_init
remove start log and enhance power pin setup
using enum for i2s_channel and i2s_bits_per_sample, return ESP_ERR_INVALID_ARG when check params
validate i2s_bits_per_sample and channel
check tx & rx buffer before fill zero
remove checking channel as @jxmao suggest
limit dma buffer
modify i2s pin back to gpio mux before configure gpio matrix, resolve github issue #512
Add support 24, 32 bits
reduce push function
Modify sample can test with 24, 32-bits
Add i2s sample README
Fixed i2s_set_clk got reset sometime
can changes bit-wide while running
Fix sample rate calculation for DAC mode from @jeroen
modify example can change bits per sample every 5 seconds
cleanup
add comment for bytes_per_sample
update as @angus suggestions
Add i2s_set_clk api
I2S driver bug fixed as following log:
@jxmao optimize i2s_zero_buffer
@jxmao correct config support slave mode
@jxmao correct setup pin support tx/rx at the same time
Enhance pin power
@jxmao add dynamic change number of channels
remove nvs_init
remove start log and enhance power pin setup
using enum for i2s_channel and i2s_bits_per_sample, return ESP_ERR_INVALID_ARG when check params
validate i2s_bits_per_sample and channel
check tx & rx buffer before fill zero
remove checking channel as @jxmao suggest
limit dma buffer
modify i2s pin back to gpio mux before configure gpio matrix, resolve github issue #512
limit dma buffer to 4092
change gpio_matrix_*_check to inline function, remove some comments and rename test_i2s function to setup_triangle_sine_waves
for change commit title
add support for 32k XTAL as RTC_SLOW_CLK source
- RTC_CNTL_SLOWCLK_FREQ define is removed; rtc_clk_slow_freq_get_hz
function can be used instead to get an approximate RTC_SLOW_CLK
frequency
- Clock calibration is performed at startup. The value is saved and used
for timekeeping and when entering deep sleep.
- When using the 32k XTAL, startup code will wait for the oscillator to
start up. This can be possibly optimized by starting a separate task
to wait for oscillator startup, and performing clock switch in that
task.
- Fix a bug that 32k XTAL would be disabled in rtc_clk_init.
- Fix a rounding error in rtc_clk_cal, which caused systematic frequency
error.
- Fix an overflow bug which caused rtc_clk_cal to timeout early if the
slow_clk_cycles argument would exceed certain value
- Improve 32k XTAL oscillator startup time by introducing bootstrapping
code, which uses internal pullup/pulldown resistors on 32K_N/32K_P
pins to set better initial conditions for the oscillator.
Ref TW11683.
Ref https://esp32.com/viewtopic.php?f=13&t=1570
Fixes https://github.com/espressif/esp-idf/issues/337.
See merge request !696
- RTC_CNTL_SLOWCLK_FREQ define is removed; rtc_clk_slow_freq_get_hz
function can be used instead to get an approximate RTC_SLOW_CLK
frequency
- Clock calibration is performed at startup. The value is saved and used
for timekeeping and when entering deep sleep.
- When using the 32k XTAL, startup code will wait for the oscillator to
start up. This can be possibly optimized by starting a separate task
to wait for oscillator startup, and performing clock switch in that
task.
- Fix a bug that 32k XTAL would be disabled in rtc_clk_init.
- Fix a rounding error in rtc_clk_cal, which caused systematic frequency
error.
- Fix an overflow bug which caused rtc_clk_cal to timeout early if the
slow_clk_cycles argument would exceed certain value
- Improve 32k XTAL oscillator startup time by introducing bootstrapping
code, which uses internal pullup/pulldown resistors on 32K_N/32K_P
pins to set better initial conditions for the oscillator.
wear levelling
This MR adds wear levelling component. It presents an interface similar to the interface of spi_flash and esp_partition. Inside, it stores data inside a partition to in a way that reduces worst case number of erase cycles for any given sector.
Also included are APIs similar to the ones provided for SDMMC to mount FAT filesystem on top of the wear levelling partition. A simple example shows how this API can be used.
Ref TW10338.
See merge request !567
Fix device_name check in gatt_client example
`strcmp` was used against `adv_name` array, which was not a zero terminated string, causing `strcmp` check to fail for valid names.
Ref. https://github.com/espressif/esp-idf/pull/502
See merge request !652
Feature/btdm avrc
The source branch "feature/btdm_avrc" includes classic Bluetooth profiles A2DP(sink role) and AVRCP(controller role);
Menuconfig options to control whether to enable classic BT is added.
See merge request !591
wifi performance: add wifi performance examples including TCP&UDP TX/RX
Add wifi performance examples including TCP and UDP send and receive.
See merge request !577
request new lines must be `\r\n` as specified in the HTTP RFC.
Also the following logic checks for the socket to be closed by the server. This only happens with HTTP/1.0 not HTTP/1.1. So I have adjusted the protocol in the request, too.
You can set esp32 as AP/STA, client/sever, sender/recever in menuconfig.
You can set whether to display delay time info in menuconfig.
Now you can transfer data between esp and esp.
examples: Standardise naming of files, symbols, etc. in examples
* Use "example" in all example function & variable names,
ie use i2c_example_xxx instead of i2c_xxx for example functions.
Closes#198https://github.com/espressif/esp-idf/issues/198
* Mark example functions, etc. static
* Replace uses of "test" & "demo" with "example"
* Split the UART example into two
* Rename "main" example files to end with "_main.c" for disambiguation
See merge request !601
* Use "example" in all example function & variable names,
ie use i2c_example_xxx instead of i2c_xxx for example functions.
Closes#198https://github.com/espressif/esp-idf/issues/198
* Mark example functions, etc. static
* Replace uses of "test" & "demo" with "example"
* Split the UART example into two
* Rename "main" example files to end with "_main.c" for disambiguation
Error handling in NVS initialization
Previously nvs_flash_init worked under an assumption that there should always be at least one free page available. This is true during normal operation, but in some cases (such as when changing application partition table from a non-OTA to an OTA one), NVS partition may get truncated, which will cause empty pages to be lost.
This MR adds error checks for this condition, and updates code which calls `nvs_flash_init` to check for the return code.
For most examples, a simple `ESP_ERROR_CHECK` is added around `nvs_flash_init`. For NVS examples and the OTA example, more robust error handling is added.
This change also removes nvs_flash_init calls from examples which don't use NVS.
See merge request !582
1. Add low speed channels for LEDC module.
2. Improve fade object allocate mechanism.
3. Improve ledc example, add 2 low speed channels in example.
4. Remove debug code
5. Improve the register bit field name of slow clock.
nvs_flash_init may return an error code in some cases, and applications
should check this error code (or at least assert on it being ESP_OK, to
make potential issues more immediately obvious).
This change modifies all the examples which use NVS to check the error
code. Most examples get a simple ESP_ERROR_CHECK assert, while NVS
examples, OTA example, and NVS unit tests get a more verbose check which
may be used in real applications.
add wakeup from touch sensor, and deep sleep example
- add new deep sleep wakeup mode
- change documentation to explain incompatibilities between different wakeup mode, add error checks
- add new ULP instructions necessary for ULP wakeup scenario
- fix issues with I_WR_REG, I_SLEEP, I_END instructions
- add deep sleep example, illustrating the use of timer, gpio, touch, and ULP wakeup triggers
See merge request !461
Examples on using capacitive touch sensors
- `touch_pad_read` - read sensor values and show on terminal
- `touch_pad_interrupt` - perform simple calibration; trigger an interrupt when any pad is touched
See merge request !530
esptool version bump and new "espefuse.py set_flash voltage" command
* New "espefuse.py set_flash_voltage" command to easily set a fix
VDD_SDIO regulator voltage (1.8V, 3.3V or disabled).
* Fixes bugs when flashing files with non-4-byte aligned lengths
(doesn't effect esp-idf image files)
* esptool README improvements
* Detect overlapping files in write_flash
* read_mac now works correctly on ESP32
* Integrates reset fix for older dev boards (formerly the "Windows ESP32R0 reset workaround")
See merge request !481
* New "espefuse.py set_flash_voltage" command to easily set a fix
VDD_SDIO regulator voltage (1.8V, 3.3V or disabled).
* Fixes bugs when flashing files with non-4-byte aligned lengths
(doesn't effect esp-idf image files)
* README improvements
Allow separate ethernet & wifi configuration
If only 1/2 of ethernet & WiFi are enabled in config, the other interface is no longer linked into the firmware.
* Fixes bug where enabling Ethernet but not WiFi would fail to compile.
* Also means that enabling WiFi but not Ethernet no longer links some unused ethernet interface functions.
See merge request !525
Partition/SPI/OTA docs & OTA new functionality
* Update partition, SPI flash & OTA docs to reflect functionality changes
* Refactor OTA implementation to perform checks mentioned in API doc
* Add new functions to OTA API: esp_ota_get_running_partition() & esp_ota_get_next_update_partition() functions
* Add spi_flash_cache2phys() & spi_flash_phys2cache() functions to support esp_ota_get_running_partition()
See merge request !513
1. indicate adv/scan start complete success or failed
2. controller do limit of adv/scan concurrence, so add some codes to report adv/scan start failed or not.
1. add new APIs bt controller enable/disab/deinit
2. make bt controller work need to call two APIs of esp_bt_controller_init and enable
3. modify phy init to make mac reset once
