CCF_100/InfiniTime
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New implementation of the I²C/TWI driver.

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Fix reset timing and add dummy reading in Cst816S to fix init error on some devices.
This commit is contained in:
JF
2020-07-19 20:30:44 +02:00
parent 42d8a18fe7
commit 6af5bbcbc8
9 changed files with 239 additions and 55 deletions
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15
src/main.cpp
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@@ -42,6 +42,9 @@ static constexpr uint8_t pinSpiMiso = 4;
static constexpr uint8_t pinSpiFlashCsn = 5;
static constexpr uint8_t pinLcdCsn = 25;
static constexpr uint8_t pinLcdDataCommand = 18;
static constexpr uint8_t pinTwiScl = 7;
static constexpr uint8_t pinTwiSda = 6;
static constexpr uint8_t touchPanelTwiAddress = 0x15;
Pinetime::Drivers::SpiMaster spi{Pinetime::Drivers::SpiMaster::SpiModule::SPI0, {
Pinetime::Drivers::SpiMaster::BitOrder::Msb_Lsb,
@@ -58,7 +61,15 @@ Pinetime::Drivers::St7789 lcd {lcdSpi, pinLcdDataCommand};
Pinetime::Drivers::Spi flashSpi {spi, pinSpiFlashCsn};
Pinetime::Drivers::SpiNorFlash spiNorFlash {flashSpi};
Pinetime::Drivers::Cst816S touchPanel {};
// The TWI device should work @ up to 400Khz but there is a HW bug which prevent it from
// respecting correct timings. According to erratas heet, this magic value makes it run
// at ~390Khz with correct timings.
static constexpr uint32_t MaxTwiFrequencyWithoutHardwareBug{0x06200000};
Pinetime::Drivers::TwiMaster twiMaster{Pinetime::Drivers::TwiMaster::Modules::TWIM1,
Pinetime::Drivers::TwiMaster::Parameters {
MaxTwiFrequencyWithoutHardwareBug, pinTwiSda, pinTwiScl}};
Pinetime::Drivers::Cst816S touchPanel {twiMaster, touchPanelTwiAddress};
Pinetime::Components::LittleVgl lvgl {lcd, touchPanel};
@@ -213,7 +224,7 @@ int main(void) {
debounceTimer = xTimerCreate ("debounceTimer", 200, pdFALSE, (void *) 0, DebounceTimerCallback);
systemTask.reset(new Pinetime::System::SystemTask(spi, lcd, spiNorFlash, touchPanel, lvgl, batteryController, bleController,
systemTask.reset(new Pinetime::System::SystemTask(spi, lcd, spiNorFlash, twiMaster, touchPanel, lvgl, batteryController, bleController,
dateTimeController, notificationManager));
systemTask->Start();
nimble_port_init();