4c0f897953
Ensure that all pins are set to their default configuration during sleep mode. Disable the workaround for FTPAN58 (SPI freezes when transfering a single byte) at the end of the transfer. This disables the resources needed for the workaround. Those changes reduce the power usage by 430-490µA.
40 lines
985 B
C++
40 lines
985 B
C++
#include "drivers/Spi.h"
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#include <hal/nrf_gpio.h>
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#include <nrfx_log.h>
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using namespace Pinetime::Drivers;
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Spi::Spi(SpiMaster& spiMaster, uint8_t pinCsn) : spiMaster {spiMaster}, pinCsn {pinCsn} {
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nrf_gpio_cfg_output(pinCsn);
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nrf_gpio_pin_set(pinCsn);
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}
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bool Spi::Write(const uint8_t* data, size_t size) {
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return spiMaster.Write(pinCsn, data, size);
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}
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bool Spi::Read(uint8_t* cmd, size_t cmdSize, uint8_t* data, size_t dataSize) {
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return spiMaster.Read(pinCsn, cmd, cmdSize, data, dataSize);
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}
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void Spi::Sleep() {
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nrf_gpio_cfg_default(pinCsn);
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NRF_LOG_INFO("[SPI] Sleep")
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}
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bool Spi::WriteCmdAndBuffer(const uint8_t* cmd, size_t cmdSize, const uint8_t* data, size_t dataSize) {
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return spiMaster.WriteCmdAndBuffer(pinCsn, cmd, cmdSize, data, dataSize);
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}
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bool Spi::Init() {
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nrf_gpio_cfg_output(pinCsn);
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nrf_gpio_pin_set(pinCsn);
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return true;
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}
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void Spi::Wakeup() {
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nrf_gpio_cfg_output(pinCsn);
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nrf_gpio_pin_set(pinCsn);
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NRF_LOG_INFO("[SPI] Wakeup")
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}
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