[FL-3179] 1-Wire Overdrive Mode (#2522)
* Separate ibutton to its own module, add one_wire to f18 * Move onewire cli to a separate app * Add definitions for normal and overdrive timings * Update api definitions * Add rough overdrive timings definition for onewire emulation * Remove one_wire_host_timing.h * Add rough overdrive timings for onewire host * Improve overdrive mode * Working overdrive mode from flipper to flipper * Update thermometer example app * Turn on otg power when running thermometer example app * Implement reset overdrive switching * Always exit out of overdrive mode * Improve overdrive timings * Fix typos * Fix reset behaviour * Use overdrive mode everywhere in DS1996 * Improve comments * Bump API version Co-authored-by: あく <alleteam@gmail.com>
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@@ -19,9 +19,12 @@
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#include <one_wire/maxim_crc.h>
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#include <one_wire/one_wire_host.h>
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#include <furi_hal_power.h>
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#define UPDATE_PERIOD_MS 1000UL
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#define TEXT_STORE_SIZE 64U
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#define DS18B20_CMD_SKIP_ROM 0xccU
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#define DS18B20_CMD_CONVERT 0x44U
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#define DS18B20_CMD_READ_SCRATCHPAD 0xbeU
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@@ -92,7 +95,7 @@ static void example_thermo_request_temperature(ExampleThermoContext* context) {
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/* After the reset, a ROM operation must follow.
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If there is only one device connected, the "Skip ROM" command is most appropriate
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(it can also be used to address all of the connected devices in some cases).*/
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onewire_host_skip(onewire);
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onewire_host_write(onewire, DS18B20_CMD_SKIP_ROM);
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/* After the ROM operation, a device-specific command is issued.
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In this case, it's a request to start measuring the temperature. */
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onewire_host_write(onewire, DS18B20_CMD_CONVERT);
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@@ -133,7 +136,7 @@ static void example_thermo_read_temperature(ExampleThermoContext* context) {
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/* After the reset, a ROM operation must follow.
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If there is only one device connected, the "Skip ROM" command is most appropriate
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(it can also be used to address all of the connected devices in some cases).*/
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onewire_host_skip(onewire);
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onewire_host_write(onewire, DS18B20_CMD_SKIP_ROM);
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/* After the ROM operation, a device-specific command is issued.
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This time, it will be the "Read Scratchpad" command which will
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@@ -267,6 +270,9 @@ static void example_thermo_input_callback(InputEvent* event, void* ctx) {
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/* Starts the reader thread and handles the input */
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static void example_thermo_run(ExampleThermoContext* context) {
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/* Enable power on external pins */
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furi_hal_power_enable_otg();
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/* Configure the hardware in host mode */
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onewire_host_start(context->onewire);
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@@ -299,6 +305,9 @@ static void example_thermo_run(ExampleThermoContext* context) {
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/* Reset the hardware */
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onewire_host_stop(context->onewire);
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/* Disable power on external pins */
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furi_hal_power_disable_otg();
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}
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/******************** Initialisation & startup *****************************/
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