Lenovo ThinkCenter M71

Maybe

Windows 10 Shutdown (Power-off) Issue
ThinkCentre M71e won’t shutdown after Windows 10 Upgrade

 1. Boot from the Windows 10 install media
 2. After booting to the UEFI device you see the Install Windows 10 screen, press Shift + F10 to open a command prompt.
 3. Type Diskpart, press Enter
 4. Type List Disk , press Enter
 5. Type Select Disk # (where # is the number your drive shows up as), press Enter
 6. Type Clean, press Enter
 7. Type Convert GPT, press Enter
 8. Type Exit, press Enter.
 9. Close the Command Prompt window.
 10. Click the "Next" button.
 11. Click the "Install now" button

Not working!

powermgr.exe hibernate off

Fix: Lenovo is not shutting down (Lenovo Laptop, Desktop does not turn off)

STM32/ARM Cortex-M: pgmspace.h, pgm_read_byte(), PROGMEM

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github.com/PaulStoffregen/cores/blob/master/teensy3/avr/pgmspace.h
github.com/arduino/ArduinoCore-sam/blob/master/cores/arduino/avr/pgmspace.h

ESP8266

pgm_read_byte() does not work well without delay() #3140

Microchip C18

How to port pgm_read_byte macro (AVR-GCC) to Mircrochip C18 Compiler?

ESP8266/ESP32 Driver Install: CP2102, CP2104, CH340, CH341

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esp8266_deauther: Installation
CH340/340 Treiber für Arduino Boards installieren

STM32duino SysTick

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STM32G071RB

Twice initialization

Code

HAL_Init():
SystemCoreClock = 16'000'000 Hz = 16 MHz
SystemClock_Config():
SystemCoreClock = 64'000'000 Hz = 64 MHz

#ifndef F_CPU
  #define F_CPU SystemCoreClock
#endif

void hw_config_init(void)
{
  /* Initialize the HAL */
  HAL_Init();

  /* Configure the system clock */
  SystemClock_Config();
}

/* The SystemCoreClock variable is updated in three ways:
    1) by calling CMSIS function SystemCoreClockUpdate()
    2) by calling HAL API function HAL_RCC_GetHCLKFreq()
    3) each time HAL_RCC_ClockConfig() is called to configure the system clock frequency
       Note: If you use this function to configure the system clock; then there
             is no need to call the 2 first functions listed above, since SystemCoreClock
             variable is updated automatically.
*/
uint32_t SystemCoreClock = 16000000UL;

HAL_StatusTypeDef HAL_RCC_ClockConfig(RCC_ClkInitTypeDef *RCC_ClkInitStruct, uint32_t FLatency)
{
  [...]

  /* Update the SystemCoreClock global variable */
  SystemCoreClock = (HAL_RCC_GetSysClockFreq() >> ((AHBPrescTable[(RCC->CFGR & RCC_CFGR_HPRE) >> RCC_CFGR_HPRE_Pos]) & 0x1FU));

  /* Configure the source of time base considering new system clocks settings*/
  return HAL_InitTick(uwTickPrio);
}

void noOsSystickHandler() { } // empty

void osSystickHandler() __attribute__((weak, alias("noOsSystickHandler")));
void SysTick_Handler(void)
{
  HAL_IncTick();
  HAL_SYSTICK_IRQHandler();
  osSystickHandler();
}

STM32Cube / STM32duino FreeRTOS

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STM32Cube

MOOC – FreeRTOS on STM32 (Playlist)

STM32CubeMX – With Example Work-flow
STM32Cube – Drivers and Middleware for STM32 ARM Cortex-M MCUs

STM32duino

STM32duino FreeRTOS
github.com/stm32duino/STM32FreeRTOS, Real Time Operating System implemented for STM32

STM32F401CC / STM32F411CE

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ST

STM32F401CC, High-performance access line, Arm Cortex-M4 core with DSP and FPU, 256 Kbytes of Flash memory, 84 MHz CPU, ART Accelerator
STM32F411CC, High-performance access line, Arm Cortex-M4 core with DSP and FPU, 256 Kbytes of Flash memory, 100 MHz CPU, ART Accelerator