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Sigma-delta modulation driver #2370

Open
Tracked by #2492
katyo opened this issue Oct 19, 2024 · 0 comments · May be fixed by #2371
Open
Tracked by #2492

Sigma-delta modulation driver #2370

katyo opened this issue Oct 19, 2024 · 0 comments · May be fixed by #2371

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@katyo
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katyo commented Oct 19, 2024 •
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Motivations

Almost all ESP SoCs has Sigma-delta modulation periphery which can be used as a DAC (multi-channel).

ESP32 SoC Number of SigmaDelta channels
ESP32 8
ESP32-S2 8
ESP32-S3 8
ESP32-C3 4
ESP32-C6 4
ESP32-H2 4

Solution

An SDM driver as a part of HAL.

Alternatives

LEDC PWM driver also can be used in such case but SDM typically has lower noise.

Links

Wikipedia Article
IDF API documentation
IDF HAL (C3)
IDF SDM interface
IDF SDM implementation
IDF SDM example
@katyo katyo added the status:needs-attention This should be prioritized label Oct 19, 2024
katyo added a commit to katyo/esp-hal that referenced this issue Oct 20, 2024
@katyo
Add sigma-delta modulator driver
db8bab0 
Solution for issue esp-rs#2370
katyo added a commit to katyo/esp-hal that referenced this issue Oct 20, 2024
@katyo
Add example for sigma-delta modulation
ba31e63 
Issue esp-rs#2370
katyo added a commit to katyo/esp-hal that referenced this issue Oct 20, 2024
@katyo
Add sigma-delta modulator driver
9d39e43 
Solution for issue esp-rs#2370
katyo added a commit to katyo/esp-hal that referenced this issue Oct 20, 2024
@katyo
Add example for sigma-delta modulation
3fbbc58 
Issue esp-rs#2370
katyo added a commit to katyo/esp-hal that referenced this issue Oct 20, 2024
@katyo
Add SDM driver to changelog
6914919 
Issue esp-rs#2370
katyo added a commit to katyo/esp-hal that referenced this issue Oct 20, 2024
@katyo
Add example for sigma-delta modulation
c731e05 
Issue esp-rs#2370
katyo added a commit to katyo/esp-hal that referenced this issue Oct 20, 2024
@katyo
Add sigma-delta modulation driver to changelog
6ed29ac 
Issue esp-rs#2370
katyo added a commit to katyo/esp-hal that referenced this issue Oct 20, 2024
@katyo
Add sigma-delta modulation driver
3cca769 
Solution for issue esp-rs#2370
katyo added a commit to katyo/esp-hal that referenced this issue Oct 20, 2024
@katyo
Add example for sigma-delta modulation
f3d7c40 
Issue esp-rs#2370
katyo added a commit to katyo/esp-hal that referenced this issue Oct 20, 2024
@katyo
Add sigma-delta modulation driver to changelog
9559a1d 
Issue esp-rs#2370
katyo added a commit to katyo/esp-hal that referenced this issue Oct 20, 2024
@katyo
Add sigma-delta modulation driver
7819f9c 
Solution for issue esp-rs#2370
katyo added a commit to katyo/esp-hal that referenced this issue Oct 20, 2024
@katyo
Add example for sigma-delta modulation
ea1157d 
Issue esp-rs#2370
katyo added a commit to katyo/esp-hal that referenced this issue Oct 20, 2024
@katyo
Add sigma-delta modulation driver to changelog
f30393a 
Issue esp-rs#2370
katyo added a commit to katyo/esp-hal that referenced this issue Oct 20, 2024
@katyo
Add sigma-delta modulation driver
0ce7ff1 
Solution for issue esp-rs#2370
katyo added a commit to katyo/esp-hal that referenced this issue Oct 20, 2024
@katyo
Add example for sigma-delta modulation
f063946 
Issue esp-rs#2370
katyo added a commit to katyo/esp-hal that referenced this issue Oct 20, 2024
@katyo
Add sigma-delta modulation driver to changelog
2147280 
Issue esp-rs#2370
katyo added a commit to katyo/esp-hal that referenced this issue Oct 20, 2024
@katyo
Add example for sigma-delta modulation
194a98f 
Issue esp-rs#2370
katyo added a commit to katyo/esp-hal that referenced this issue Oct 20, 2024
@katyo
Add sigma-delta modulation driver to changelog
03edc6a 
Issue esp-rs#2370
katyo added a commit to katyo/esp-hal that referenced this issue Oct 20, 2024
@katyo
Add sigma-delta modulation driver
d4e571c 
Solution for issue esp-rs#2370
katyo added a commit to katyo/esp-hal that referenced this issue Oct 20, 2024
@katyo
Add example for sigma-delta modulation
89a3b1a 
Issue esp-rs#2370
katyo added a commit to katyo/esp-hal that referenced this issue Oct 20, 2024
@katyo
Add sigma-delta modulation driver to changelog
8a6260a 
Issue esp-rs#2370
@SergioGasquez SergioGasquez linked a pull request Oct 21, 2024 that will close this issue
Add sdm #2371
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@SergioGasquez SergioGasquez removed the status:needs-attention This should be prioritized label Oct 21, 2024
This was referenced Dec 6, 2024
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Add sdm katyo/esp-hal
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@katyo @SergioGasquez