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Automatic switching form PIC mode to EDBG (AVR) mode, for MPLAB Snap and PICkit 4 tools.

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2024-12-30 15:41:52 +00:00
parent 7535267a3b
commit 020d174a2d
9 changed files with 162 additions and 52 deletions
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76
src/DebugToolDrivers/Microchip/MplabSnap/MplabSnap.cpp
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@@ -1,7 +1,8 @@
#include "MplabSnap.hpp"
#include "src/TargetController/Exceptions/DeviceNotFound.hpp"
#include "src/Services/PathService.hpp"
#include "src/Logger/Logger.hpp"
#include "src/TargetController/Exceptions/DeviceInitializationFailure.hpp"
namespace DebugToolDrivers::Microchip
{
@@ -15,38 +16,59 @@ namespace DebugToolDrivers::Microchip
{}
void MplabSnap::init() {
using Exceptions::DeviceNotFound;
using Exceptions::DeviceInitializationFailure;
try {
EdbgDevice::init();
} catch (const DeviceNotFound& exception) {
/*
* The MPLAB Snap could be connected but not in AVR mode - if this is the case, inform the user and direct
* them to the AVR mode article.
*/
auto nonEdbgDevices = this->findMatchingDevices(
MplabSnap::NON_EDBG_USB_VENDOR_ID,
MplabSnap::NON_EDBG_USB_PRODUCT_ID
if (!UsbDevice::devicePresent(this->vendorId, this->productId)) {
auto blDevice = Usb::UsbDevice::tryDevice(
MplabSnap::PIC_MODE_USB_VENDOR_ID,
MplabSnap::BL_MODE_USB_PRODUCT_ID
);
if (nonEdbgDevices.empty()) {
// The MPLAB Snap sometimes uses another product ID when not in AVR mode.
nonEdbgDevices = this->findMatchingDevices(
MplabSnap::NON_EDBG_USB_VENDOR_ID,
MplabSnap::NON_EDBG_USB_PRODUCT_ID_ALTERNATIVE
);
if (blDevice.has_value()) {
if (!this->toolConfig.exitBootloaderMode) {
throw DeviceInitializationFailure{"Device is currently in bootloader mode"};
}
Logger::warning("Found device in bootloader mode - attempting exit operation");
this->exitBootloaderMode(*blDevice);
Logger::info("Waiting for device to re-enumerate...");
if (
!Usb::UsbDevice::waitForDevice(
MplabSnap::PIC_MODE_USB_VENDOR_ID,
MplabSnap::PIC_MODE_USB_PRODUCT_ID,
std::chrono::seconds{8}
)
) {
throw DeviceInitializationFailure{"Timeout exceeded whilst waiting for device to re-enumerate"};
}
Logger::info("Re-enumerated device found - exit operation was successful");
}
if (!nonEdbgDevices.empty()) {
throw DeviceNotFound{
"The connected MPLAB Snap device is not in \"AVR mode\". Please follow the instructions at "
+ Services::PathService::homeDomainName() + "/docs/avr-mode"
};
}
auto picDevice = Usb::UsbDevice::tryDevice(
MplabSnap::PIC_MODE_USB_VENDOR_ID,
MplabSnap::PIC_MODE_USB_PRODUCT_ID
);
throw exception;
if (picDevice.has_value()) {
if (!this->toolConfig.enableEdbgMode) {
throw DeviceInitializationFailure{"Device is currently in PIC mode"};
}
Logger::warning("Found device in PIC mode - attempting to switch to EDBG (AVR) mode");
this->enableEdbgMode(*picDevice);
Logger::info("Waiting for device to re-enumerate...");
if (!Usb::UsbDevice::waitForDevice(this->vendorId, this->productId, std::chrono::seconds{8})) {
throw DeviceInitializationFailure{"Timeout exceeded whilst waiting for device to re-enumerate"};
}
Logger::info("Re-enumerated device found - mode switch operation was successful");
}
}
EdbgDevice::init();
}
void MplabSnap::configureAvr8Interface() {

6
src/DebugToolDrivers/Microchip/MplabSnap/MplabSnap.hpp
View File

@@ -28,9 +28,9 @@ namespace DebugToolDrivers::Microchip
static const inline std::uint16_t USB_PRODUCT_ID = 0x2180;
static const inline std::uint8_t CMSIS_HID_INTERFACE_NUMBER = 0;
static const inline std::uint16_t NON_EDBG_USB_VENDOR_ID = 0x04d8;
static const inline std::uint16_t NON_EDBG_USB_PRODUCT_ID = 0x9018;
static const inline std::uint16_t NON_EDBG_USB_PRODUCT_ID_ALTERNATIVE = 0x9017;
static const inline std::uint16_t PIC_MODE_USB_VENDOR_ID = 0x04d8;
static const inline std::uint16_t PIC_MODE_USB_PRODUCT_ID = 0x9018;
static const inline std::uint16_t BL_MODE_USB_PRODUCT_ID = 0x9019;
MplabSnap(const DebugToolConfig& debugToolConfig);