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Improve the comments around VSYS/VBUS config. (#1414)

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Peter Harper 2023-06-07 17:52:07 +01:00 committed by GitHub
parent ab766096e5
commit c0a615e99c
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2 changed files with 11 additions and 5 deletions
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5
src/boards/include/boards/pico.h
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@ -81,12 +81,13 @@
#define PICO_RP2040_B0_SUPPORTED 1
#endif
// Pin get VBUS
// The GPIO Pin used to read VBUS to determine if the device is battery powered.
#ifndef PICO_VBUS_PIN
#define PICO_VBUS_PIN 24
#endif
// Pin used to monitor VSYS using ADC
// The GPIO Pin used to monitor VSYS. Typically you would use this with ADC.
// There is an example in adc/read_vsys in pico-examples.
#ifndef PICO_VSYS_PIN
#define PICO_VSYS_PIN 29
#endif

11
src/boards/include/boards/pico_w.h
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@ -99,17 +99,22 @@
#define CYW43_WL_GPIO_LED_PIN 0
#endif
// CYW43 GPIO to get VBUS
// If CYW43_WL_GPIO_VBUS_PIN is defined then a CYW43 GPIO has to be used to read VBUS.
// This can be passed to cyw43_arch_gpio_get to determine if the device is battery powered.
// PICO_VBUS_PIN and CYW43_WL_GPIO_VBUS_PIN should not both be defined.
#ifndef CYW43_WL_GPIO_VBUS_PIN
#define CYW43_WL_GPIO_VBUS_PIN 2
#endif
// VSYS pin is shared with CYW43
// If CYW43_USES_VSYS_PIN is defined then CYW43 uses the VSYS GPIO (defined by PICO_VSYS_PIN) for other purposes.
// If this is the case, to use the VSYS GPIO it's necessary to ensure CYW43 is not using it.
// This can be achieved by wrapping the use of the VSYS GPIO in cyw43_thread_enter / cyw43_thread_exit.
#ifndef CYW43_USES_VSYS_PIN
#define CYW43_USES_VSYS_PIN 1
#endif
// Pin used to monitor VSYS using ADC
// The GPIO Pin used to monitor VSYS. Typically you would use this with ADC.
// There is an example in adc/read_vsys in pico-examples.
#ifndef PICO_VSYS_PIN
#define PICO_VSYS_PIN 29
#endif