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Olivier Gillet
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Added Yarns, Tides, Frames
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‎frames/__init__.py‎

Whitespace-only changes.

‎frames/bootloader/__init__.py‎

Whitespace-only changes.

‎frames/bootloader/bootloader.cc‎

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// Copyright 2013 Olivier Gillet.
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//
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// Author: Olivier Gillet ([email protected])
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//
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// Permission is hereby granted, free of charge, to any person obtaining a copy
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// of this software and associated documentation files (the "Software"), to deal
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// in the Software without restriction, including without limitation the rights
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// to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
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// copies of the Software, and to permit persons to whom the Software is
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// furnished to do so, subject to the following conditions:
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//
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// The above copyright notice and this permission notice shall be included in
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// all copies or substantial portions of the Software.
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//
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// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
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// IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
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// FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
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// AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
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// LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
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// OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
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// THE SOFTWARE.
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//
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// See http://creativecommons.org/licenses/MIT/ for more information.
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#include <stm32f10x_conf.h>
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#include <string.h>
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#include "stmlib/utils/dsp.h"
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#include "stmlib/utils/ring_buffer.h"
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#include "stmlib/system/bootloader_utils.h"
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#include "stmlib/system/flash_programming.h"
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#include "stmlib/system/system_clock.h"
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#include "stm_audio_bootloader/qpsk/packet_decoder.h"
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#include "stm_audio_bootloader/qpsk/demodulator.h"
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#include "frames/drivers/adc.h"
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#include "frames/drivers/switches.h"
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#include "frames/drivers/channel_leds.h"
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#include "frames/drivers/rgb_led.h"
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#include "frames/drivers/system.h"
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using namespace frames;
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using namespace stmlib;
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using namespace stm_audio_bootloader;
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const double kSampleRate = 48000.0;
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const double kModulationRate = 6000.0;
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const double kBitRate = 12000.0;
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const uint32_t kStartAddress = 0x08004000;
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Adc adc;
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System sys;
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ChannelLeds leds;
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RgbLed rgb;
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Switches switches;
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PacketDecoder decoder;
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Demodulator demodulator;
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extern "C" {
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void HardFault_Handler(void) { while (1); }
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void MemManage_Handler(void) { while (1); }
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void BusFault_Handler(void) { while (1); }
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void UsageFault_Handler(void) { while (1); }
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void NMI_Handler(void) { }
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void SVC_Handler(void) { }
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void DebugMon_Handler(void) { }
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void PendSV_Handler(void) { }
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}
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extern "C" {
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enum UiState {
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UI_STATE_WAITING,
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UI_STATE_RECEIVING,
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UI_STATE_ERROR,
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UI_STATE_PACKET_OK
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};
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volatile bool switch_released = false;
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volatile UiState ui_state;
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inline void UpdateLeds() {
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switch (ui_state) {
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case UI_STATE_WAITING:
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{
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bool on = system_clock.milliseconds() & 256;
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rgb.set_color(255, 128, 0);
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leds.set_channel(0, on ? 255 : 0);
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leds.set_channel(1, on ? 255 : 0);
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leds.set_channel(2, on ? 255 : 0);
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leds.set_channel(3, on ? 255 : 0);
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}
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break;
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case UI_STATE_RECEIVING:
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{
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uint8_t stage = (system_clock.milliseconds() >> 7) & 3;
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rgb.set_color(0, 255, 0);
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leds.set_channel(0, stage == 0 ? 255 : 0);
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leds.set_channel(1, stage == 1 ? 255 : 0);
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leds.set_channel(2, stage == 2 ? 255 : 0);
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leds.set_channel(3, stage == 3 ? 255 : 0);
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}
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break;
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case UI_STATE_ERROR:
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{
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bool on = system_clock.milliseconds() & 128;
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rgb.set_color(255, 0, 0);
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leds.set_channel(0, on ? 255 : 0);
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leds.set_channel(1, on ? 255 : 0);
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leds.set_channel(2, on ? 255 : 0);
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leds.set_channel(3, on ? 255 : 0);
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}
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break;
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case UI_STATE_PACKET_OK:
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{
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rgb.set_color(64, 255, 128);
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leds.set_channel(0, 255);
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leds.set_channel(1, 255);
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leds.set_channel(2, 255);
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leds.set_channel(3, 255);
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}
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break;
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}
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rgb.Write();
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leds.Write();
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}
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void SysTick_Handler() {
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system_clock.Tick(); // Tick global ms counter.
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switches.Debounce();
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if (switches.released(0)) {
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switch_released = true;
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}
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UpdateLeds();
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}
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uint16_t discard_samples = 8000;
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void TIM1_UP_IRQHandler(void) {
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if (TIM_GetITStatus(TIM1, TIM_IT_Update) == RESET) {
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return;
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}
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TIM_ClearITPendingBit(TIM1, TIM_IT_Update);
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if (!discard_samples) {
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int16_t sample = adc.value(0) >> 4;
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demodulator.PushSample(sample);
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} else {
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--discard_samples;
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}
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}
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}
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static uint32_t current_address;
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static uint16_t packet_index;
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void ProgramPage(const uint8_t* data, size_t size) {
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FLASH_Unlock();
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FLASH_ErasePage(current_address);
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const uint32_t* words = static_cast<const uint32_t*>(
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static_cast<const void*>(data));
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for (size_t written = 0; written < size; written += 4) {
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FLASH_ProgramWord(current_address, *words++);
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current_address += 4;
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}
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}
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void Init() {
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sys.Init(F_CPU / kSampleRate - 1, false);
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system_clock.Init();
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adc.Init(true);
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switches.Init();
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leds.Init();
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rgb.Init();
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sys.StartTimers();
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}
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void InitializeReception() {
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decoder.Init();
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demodulator.Init(
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kModulationRate / kSampleRate * 4294967296.0,
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kSampleRate / kModulationRate,
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2.0 * kSampleRate / kBitRate);
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demodulator.SyncCarrier(true);
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decoder.Reset();
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current_address = kStartAddress;
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packet_index = 0;
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ui_state = UI_STATE_WAITING;
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}
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uint8_t rx_buffer[PAGE_SIZE];
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const uint16_t kPacketsPerPage = PAGE_SIZE / kPacketSize;
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int main(void) {
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Init();
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InitializeReception();
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bool exit_updater = !switches.pressed_immediate(0);
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while (!exit_updater) {
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bool error = false;
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if (demodulator.state() == DEMODULATOR_STATE_OVERFLOW) {
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error = true;
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} else {
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demodulator.ProcessAtLeast(32);
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}
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while (demodulator.available() && !error && !exit_updater) {
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uint8_t symbol = demodulator.NextSymbol();
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PacketDecoderState state = decoder.ProcessSymbol(symbol);
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switch (state) {
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case PACKET_DECODER_STATE_OK:
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{
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ui_state = UI_STATE_RECEIVING;
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memcpy(
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rx_buffer + (packet_index % kPacketsPerPage) * kPacketSize,
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decoder.packet_data(),
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kPacketSize);
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++packet_index;
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if ((packet_index % kPacketsPerPage) == 0) {
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ui_state = UI_STATE_PACKET_OK;
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ProgramPage(rx_buffer, PAGE_SIZE);
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decoder.Reset();
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demodulator.SyncCarrier(false);
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ui_state = UI_STATE_RECEIVING;
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} else {
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decoder.Reset();
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demodulator.SyncDecision();
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}
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}
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break;
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case PACKET_DECODER_STATE_ERROR_SYNC:
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case PACKET_DECODER_STATE_ERROR_CRC:
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error = true;
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break;
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case PACKET_DECODER_STATE_END_OF_TRANSMISSION:
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exit_updater = true;
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break;
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default:
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break;
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}
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}
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if (error) {
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ui_state = UI_STATE_ERROR;
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switch_released = false;
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while (!switch_released); // Polled in ISR
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InitializeReception();
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}
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}
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adc.DeInit();
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Uninitialize();
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JumpTo(kStartAddress);
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while (1) { }
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}

‎frames/bootloader/makefile‎

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# Copyright 2013 Olivier Gillet.
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#
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# Author: Olivier Gillet ([email protected])
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#
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# Permission is hereby granted, free of charge, to any person obtaining a copy
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# of this software and associated documentation files (the "Software"), to deal
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# in the Software without restriction, including without limitation the rights
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# to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
9+
# copies of the Software, and to permit persons to whom the Software is
10+
# furnished to do so, subject to the following conditions:
11+
#
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# The above copyright notice and this permission notice shall be included in
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# all copies or substantial portions of the Software.
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#
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# THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
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# IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
17+
# FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
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# AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
19+
# LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
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# OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
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# THE SOFTWARE.
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#
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# See http://creativecommons.org/licenses/MIT/ for more information.
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# System specifications
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F_CRYSTAL = 8000000L
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F_CPU = 72000000L
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SYSCLOCK = SYSCLK_FREQ_72MHz
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FAMILY = f10x
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DENSITY = md
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MEMORY_MODE = flash
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# USB = enabled
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# Preferred upload command
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UPLOAD_COMMAND = upload_jtag
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# Packages to build
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TARGET = frames_bootloader
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PACKAGES = frames/bootloader frames/drivers stmlib/utils stmlib/system \
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stm_audio_bootloader/qpsk
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include stmlib/makefile.inc

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