esp32: Add Sigma-Delta peripheral #5452
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Would be nice to get this merged! (I guess you have some conflicts to resolve, though) |
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There's also one for the ESP8266: #4167 |
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Fixed docs conflict with a rebase |
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Oh my, the ESP8266 PR has been languishing for months :-( |
ports/esp32/esp32_sigmadelta.c
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| mp_raise_ValueError("duty must be between -128 and 127"); | ||
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| if (prescale < 0 || prescale > 255) { |
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prescale is an mp_uint_t (typedef to unsigned long); any point testing for <0?
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duty should be a int8_t (-128 ~ 127). Am I casting it to a mp_int_t correctly (line 65)?
prescale should be uint8_t (0 - 255). If it's being cast as unsigned, then no, as it's not possible to be < 0, so that could be removed.
I thought mp_uint_t was an int, not a long?
typedef unsigned int mp_uint_t;
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Ah, good point, mp_uint_t is port-dependent. Haven't quite tracked down what that pops out to for ESP32 but it seems to usually be an unsigned type...
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Looks good @mcauser! |
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Can this be merged @dpgeorge? |
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Rebased (a few times) |
Use `mp_arg_validate_type` for keyword args
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Rebased |
This is an ESP32-specific peripheral so lives in the esp32 module Signed-off-by: Mike Causer <mcauser@gmail.com>
Signed-off-by: Mike Causer <mcauser@gmail.com>
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Warning: The legacy sigma-delta driver is deprecated, please use |
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This is an automated heads-up that we've just merged a Pull Request See #13763 A search suggests this PR might apply the STATIC macro to some C code. If it Although this is an automated message, feel free to @-reply to me directly if |
https://docs.espressif.com/projects/esp-idf/en/stable/api-reference/peripherals/sigmadelta.html