Directory Information
Document Driver reference manual and reversion history.
Library Driver header and source files.
SampleCode Driver sample code.
ThirdParty Library from third party
1 Document Information
Revision History.pdf Show all the revision history about specific BSP.
CMSIS.html Describe all of the information of CMSIS library, including CMSIS-CORE, CMSIS-DSP, CMSIS-RTOS API and CMSIS-SVD.
NuMicro M451 Series Driver Reference Guide.chm Describe the definition, input and output of each API.
Library Information
CMSIS CMSIS definitions by ARM® Corp.
Device CMSIS compliant device header file.
StdDriver All peripheral driver header and source files.
SmartcardLib Library for CCID smart card reader.
UsbHostLib Library for USB Host.
NuEdu Library for NuEdu board.
Sample Code Information
CardReader CCID[1] smart card reader sample code.
FreeRTOS Simple FreeRTOS™ demo code.
Hard_Fault_Sample Show hard fault information when hard fault happened.
Nu-LB-M451 Sample code for M451 learning board.
NuTiny-SDK-M451 Sample code for M451 Tiny Board.
Template Software Development Template.
Semihost Show how to debug with semi-host message print.
RegBased The sample code able to access control registers directly.
NuEdu Sample code for M451 NuEdu Evaluation Board.
StdDriver M451 Series Driver Samples
1. Circuit card interface device (CCID) is USB device that interface with integrated circuit cards.
4 SampleCodeNu-LB-M451
ADC_Knob Demonstrate how to use EADC to measure voltage which is controlled by variable resistor and show conversion result on LED and TFT-LCD.
CAN_NormalMode_TxRx Demonstrate how to transmit or receive message in Normal mode of CAN. This sample code needs to work with another Nu-LB-M451 board.
I2C_EEPROM Demonstrate how to access EEPROM through the I2C interface and print test results.
I2C_MPU6050 Demonstrate how to access MPS6050 and display relative information on TFT LCD panel.
I2S_NAU8822 Configure SPI1 as I2S Slave mode and demonstrate how I2S works in Slave mode with NAU8822 and play a sound.
IR_NEC Demonstrate remote control function based on NEC IR (Infrared receiver) protocol and display relative information on TFT LCD panel when system receives data from NEC IR.
SPI_Flash Demonstrate how to read from and write to SPI Flash.
SPI_TFT_LCD Demonstrate how to display an image on TFT LCD panel via the SPI interface.
SPI_TFT_LCD_String Demonstrate how to print a message on TFT LCD panel via the SPI interface.
StartKit Demonstrate how to display an image and print a message on TFT LCD panel via the SPI interface.
USBD_HID_Mouse Demonstrate how to implement a USB mouse device. The mouse cursor will move automatically when the mouse device is connected to PC by USB.
USBD_MassStorage_SDcard Demonstrate how to use a SD card as storage to implement a USB Mass-Storage device.
SampleCodeNuTiny-SDK-M451
LED Toggle PC.9 to turn on / off the board LED.
SampleCodeNuEdu
Smpl_Basic01_7_Segment
Demonstrate how to set GPIO pin mode and use pin data output control 7
Segment. Smpl_Basic01_ACMP
Demonstrate how ACMP[1] works with internal band-gap voltage.
Smpl_Basic01_ADC_Knob
Demonstrate how to use ADC to measure variable resistor and change the LED brightness with PWM according to the ADC conversion results.
Smpl_Basic01_Button
Demonstrate how to set GPIO pin mode and detect pin input signal. Smpl_Basic01_CRC_CRC8
Implement CRC in CRC-8 mode with CRC write data reverse function and get the CRC checksum result.
Smpl_Basic01_EEPROM
Demonstrate how to access EEPROM through I2C interface and print the test results on PC via NUCOM1 port of the NuEdu-Basic01 board.
Smpl_Basic01_FMC_IAP
Demonstrate a simple IAP function to show three independent programs including main routine, independent interrupt handler and updating or switching to another program with IAP function. Smpl_Basic01_FMC_ISP
Demonstrate LDROM updated through ISP function by branching to LDROM by software reset, and show debug messages via UART.
Smpl_Basic01_IrDA_NEC
Demonstrate remote control function based on NEC IR protocol and changes LED display via NuEdu-EVB-NUC240 and NuEdu-Basci01 boards when system receives data of NEC IR.
Smpl_Basic01_LED
Demonstrate how to set GPIO pin mode and use pin data output control LED.
Smpl_Basic01_PWMDAC
Demonstrate PWM function to simulate a DAC output.
Smpl_Basic01_RGBLED
Demonstrate how to set GPIO pin mode and use pin data output control RGBLED.
Smpl_Basic01_RTC
Demonstrate RTC application and wake-up function. Smpl_Basic01_SPI_Flash
Demonstrate how to access SPI Flash through SPI interface and print the test results on both 7-Segments and PC via NUCOM1 port of NuEdu-Basic01 board. Smpl_Basic01_SPI_Flash_w_PDMA
Demonstrate how to access SPI Flash through a SPI interface with combing PDMA function and print the test results on both 7-Segments and PC via NUCOM1 port of the NuEdu-Basic01 board. Smpl_Basic01_StartKit
Demonstrate functions of NuEdu-Basic01 via NuEdu-EVB-NUC240.
Smpl_Basic01_Timer
Demonstrate the timer periodic mode application and increase the number display on 7-segments from 0 to 99 via NuEdu-EVB-NUC240 and NuEdu-Basci01 boards when timer interrupt occurs. Smpl_Basic01_UART
Demonstrate a print message through UART port
Smpl_Basic01_UART_printf
Demonstrate a simple printf function to replace the standard printf library for reducing the code size issue.
SampleCodeRegBased ACMP
Demonstrate how ACMP[1] works with internal band-gap voltage.
ACMP_Wakeup
Show how to wake up MCU from Power-down mode by ACMP wake-up function.
CAN_Set_MaskFilter
Use MaskFilter to receive message in Normal mode. This sample code needs to work with CAN_Test_MaskFilter.
CAN_Test_MaskFilter
Use message object No.1 to send message objects (ID=0x700~0x70F). This sample code needs to work with CAN_Set_MaskFilter.
CLK_ClockDetector
Show the usage of clock fail detector and clock frequency monitor function.
CRC_CCITT
Implement CRC in CRC-CCITT mode and get the CRC checksum result.
CRC_CRC8
Implement CRC in CRC-8 mode and get the CRC checksum result.
DAC_PDMA_PWMTrigger
Show how to use PWM trigger DAC conversion with PDMA.
DAC_PDMA_ScatterGather_PWMTrigger
Show how to use PWM trigger DAC conversion with PDMA scatter gather mode.
DAC_PDMA_TimerTrigger
Show how to use timer trigger DAC conversion with PDMA.
DAC_PWMTrigger
Show how to use PWM trigger DAC conversion.
DAC_TimerTrigger
Show how to use timer trigger DAC conversion.
DAC_WriteDataTrigger
Show how to write a data to DAC_DAT to trigger DAC conversion.
EADC_ADINT_Trigger
Use ADINT interrupt to do the ADC continuous scan conversion.
EADC_PDMA_PWM_Trigger
Demonstrate how to trigger EADC by PWM and transfer conversion data by PDMA.
EADC_PWM_Trigger
Demonstrate how to trigger ADC by PWM. EADC_ResultMonitor
Monitor the conversion result of channel 2 by the digital compare function.
EADC_SWTRG_Trigger
Trigger ADC by writing EADC_SWTRG register.
EADC_Timer_Trigger
Show how to trigger ADC by timer.
EBI_NOR
Configure EBI interface to access MX29LV320T (NOR Flash) on EBI interface.
EBI_SRAM
Configure EBI interface to access BS616LV4017 (SRAM) with PDMA transfer on EBI interface.
FMC_ExeInSRAM
Implement a code and execute in SRAM to program embedded Flash.(Support KEIL® MDK Only)
FMC_IAP
Show how to call LDROM functions from APROM. The code in APROM will look up the table at 0x100E00 to get the address of function of LDROM and call the function.
FMC_MultiBoot
Implement a multi-boot system to boot from different applications in APROM. A LDROM code and 4 APROM code are implemented in this sample code.
FMC_RW
Show how to read/program embedded flash by ISP function.
GPIO_EINTAndDebounce
Show the usage of GPIO external interrupt function and de-bounce function.
GPIO_INT
Show the usage of GPIO interrupt function.
GPIO_OutputInput
Show how to set GPIO pin mode and use pin data input/output control.
GPIO_PowerDown
Show how to wake up system from Power-down mode by GPIO interrupt.
I2C_EEPROM
Show how to use I2C interface to access EEPROM.
I2C_GCMode_Master
Show how a Master uses I2C address 0x0 to write data to Slave. This sample code needs to work with I2C_GCMode_Slave.
I2C_GCMode_Slave
Show a Slave how to receive data from Master in GC (General Call) mode. This sample code needs to work with I2C_GCMode_Master.
I2C_Master
Show a Master how to access Slave. This sample code needs to work with I2C_Slave.
I2C_Slave
Show how to set I2C in Slave mode and receive the data from Master. This sample code needs to work with I2C_Master.
I2C_SMBus
Show how to control SMBus interface and use SMBus protocol between Host and Slave.
I2C_Wakeup_Master
Show how to wake up MCU from Power-down. This sample code needs to work with I2C_Wakeup_Slave.
I2C_Wakeup_Slave
Show how to wake up MCU from Power-down mode through I2C interface. This sample code needs to work with I2C_Wakeup_Master.
I2S_Master
Configure SPI1 as I2S Master mode and demonstrate how I2S works in Master mode. This sample code needs to work with I2S_Slave sample code.
I2S_Slave
Configure SPI1 as I2S Slave mode and demonstrate how I2S works in Slave mode. This sample code needs to work with I2S_Master sample code.
PDMA
Use PDMA channel 2 to transfer data from memory to memory.
PDMA_Scatter_Gather
Use PDMA channel 5 to transfer data from memory to memory by scatter-gather mode.
PDMA_ScatterGather_PingPongBuffer
Use PDMA to implement Ping-Pong buffer by scatter-gather mode (memory to memory).
PWM_Capture
Capture the PWM1 Channel 0 waveform by PWM1 Channel 2.
PWM_DeadZone
Demonstrate how to use PWM Dead Zone function.
PWM_DoubleBuffer
Change duty cycle and period of output waveform by PWM Double Buffer function.
PWM_PDMA_Capture
Capture the PWM1 Channel 0 waveform by PWM1 Channel 2, and use PDMA to transfer captured data.
RTC_AlarmWakeup
Use RTC alarm interrupt event to wake up system.
RTC_SpareRegisterRW
Show how to access RTC spare registers.
RTC_TimeAndTick
Get the current RTC data/time per tick.
SC_ReadATR
Read the smartcard ATR from smartcard 0 interface.
SCUART_TxRx
Show smartcard UART mode by connecting PA.0 and PA.1 pins.
SPI_Loopback
Implement SPI Master loop back transfer. This sample code needs to connect SPI0_MISO0 pin and SPI0_MOSI0 pin together. It will compare the received data with transmitted data.
SPI_MasterMode
Configure SPI0 as Master mode and demonstrate how to communicate with an off-chip SPI Slave device. This sample code needs to work with SPI_SlaveMode.
SPI_PDMA_LoopTest
Demonstrate SPI data transfer with PDMA. SPI0 will be configured as Master mode and SPI1 will be configured as Slave mode. Both TX PDMA function and RX PDMA function will be enabled. SPI_SlaveMode
Configure SPI0 as Slave mode and demonstrate how to communicate with an off-chip SPI Master device. This sample code needs to work with SPI_MasterMode.
SYS_BODWakeup
Show how to wake up system form Power-down mode by brown-out detector interrupt.
SYS_PLLClockOutput
Change system clock to different PLL frequency and output system clock from CLKO pin.
TIMER_CaptureCounter
Show how to use the timer2 capture function to capture timer2 counter value.
TIMER_EventCounter
Implement timer1 event counter function to count the external input event.
TIMER_PeriodicINT
Implement timer counting in periodic mode.
TIMER_TimeoutWakeup
Use timer0 periodic time-out interrupt event to wake up system.
UART_AutoBaudRate_Master
Show how to use auto baud rate detection function. This sample code needs to work with UART_AutoBaudRate_Slave.
UART_AutoBaudRate_Slave
Show how to use auto baud rate detection function. This sample code needs to work with UART_AutoBaudRate_Master.
UART_Autoflow_Master
Transmit and receive data with auto flow control. This sample code needs to work with UART_Autoflow_Slave.
UART_Autoflow_Slave
Transmit and receive data with auto flow control. This sample code needs to work with UART_Autoflow_Master.
UART_IrDA_Master
Transmit and receive data in UART IrDA mode. This sample code needs to work with UART_IrDA_Slave.
UART_IrDA_Slave
Transmit and receive data in UART IrDA mode. This sample code needs to work with UART_IrDA_Master.
UART_LIN
Transmit LIN header and response.
UART_PDMA
Transmit and receive UART data with PDMA.
UART_RS485_Master
Transmit and receive data in UART RS485 mode. This sample code needs to work with UART_RS485_Slave.
UART_RS485_Slave
Transmit and receive data in UART RS485 mode. This sample code needs to work with
UART_RS485_Master. UART_TxRxFunction
Transmit and receive data from PC terminal through RS232 interface.
UART_Wakeup
Show how to wake up system from Power-down mode by UART interrupt.
WDT_TimeoutWakeupAndReset
Implement WDT time-out interrupt event to wake up system and generate time-out reset system event while WDT time-out reset delay period expired.
WWDT_CompareINT
Show how to reload the WWDT counter value.
SampleCodeStdDriver
ACMP Demonstrate how ACMP works with internal band-gap voltage.
ACMP_Wakeup Show how to wake up MCU from Power-down mode by ACMP wake-up function.
CAN_BasicMode_Receive Implement receive message in Basic mode. This sample code needs to work with CAN_BasicMode_Transmit.
CAN_BasicMode_Transmit
Implement transmit message in Basic mode. This sample code needs to work with CAN_BasicMode_Receive.
CAN_NormalMode_Receive
Implement receive message in Normal mode. This sample code needs to work with CAN_NormalMode_Transmit.
CAN_NormalMode_Transmit
Implement transmit message in Normal mode. This sample code needs to work with CAN_NormalMode_Receive.
CAN_Wakeup
Show how to wake up system form Power-down mode by detecting a transition. CLK_ClockDetector
Show the usage of clock fail detector and clock frequency monitor function. CRC_CCITT
Implement CRC in CRC-CCITT mode and get the CRC checksum result. CRC_CRC8
Implement CRC in CRC-8 mode and get the CRC checksum result. DAC_PDMA_PWMTrigger
Show how to use PWM trigger DAC conversion with PDMA. DAC_PDMA_ScatterGather_PWMTrigger
Show how to use PWM trigger DAC conversion with PDMA scatter gather mode. DAC_PDMA_TimerTrigger
Show how to use timer trigger DAC conversion with PDMA. DAC_PWMTrigger
Show how to use PWM trigger DAC conversion.
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M451 Series
DAC_SoftwareTrigger
Show how to use software trigger DAC conversion.
DAC_TimerTrigger
Show how to use timer trigger DAC conversion.
DSP_FFT
Demonstrate how to call ARM CMSIS DSP library to calculate FFT.
EADC_ADINT_Trigger
Use ADINT interrupt to do the ADC continuous scan conversion.
EADC_PDMA_PWM_Trigger
Demonstrate how to trigger EADC by PWM and transfer conversion data by PDMA.
EADC_PWM_Trigger
Demonstrate how to trigger ADC by PWM.
EADC_ResultMonitor
Monitor the conversion result of channel 2 by the digital compare function.
EADC_SWTRG_Trigger
Trigger ADC by writing EADC_SWTRG register.
EADC_Timer_Trigger
Show how to trigger ADC by timer.
EBI_NOR
Configure EBI interface to access MX29LV320T (NOR Flash) on EBI interface.
EBI_SRAM
Configure EBI interface to access BS616LV4017 (SRAM) with PDMA transfer on EBI interface.
FMC_ExeInSRAM
Implement a code and execute in SRAM to program embedded Flash. (Support KEIL® MDK Only.)
FMC_IAP
Show how to reboot to LDROM functions from APROM. This sample code set VECMAP to LDROM and reset to re-boot to LDROM.
FMC_RW
Show how to read/program embedded flash by ISP function.
GPIO_EINTAndDebounce
Show the usage of GPIO external interrupt function and de-bounce function. GPIO_INT
Show the usage of GPIO interrupt function. GPIO_OutputInput
Show how to set GPIO pin mode and use pin data
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M451 Series
input/output control. GPIO_PowerDown
Show how to wake up system from Power-down mode by GPIO interrupt.
I2C_EEPROM
Show how to use I2C interface to access EEPROM.
I2C_GCMode_Master
Show how a Master uses I2C address 0x0 to write data to Slave. This sample code needs to work with I2C_GCMode_Slave.
I2C_GCMode_Slave
Show a Slave how to receive data from Master in GC (General Call) mode. This sample code needs to work with I2C_GCMode_Master.
I2C_Master
Show a Master how to access Slave. This sample code needs to work with I2C_Slave.
I2C_Slave
Show how to set I2C in Slave mode and receive the data from Master. This sample code needs to work with I2C_Master.
I2C_SMBus
Show how to control SMBus interface and use SMBus protocol between Host and Slave.
I2C_Wakeup_Master
Show how to wake up MCU from Power-down. This sample code needs to work with I2C_Wakeup_Slave.
I2C_Wakeup_Slave
Show how to wake up MCU from Power-down mode through I2C interface. This sample code needs to work with I2C_Wakeup_Master.
I2S_Master
Configure SPI1 as I2S Master mode and demonstrate how I2S works in Master mode. This sample code needs to work with I2S_Slave.
I2S_Slave
Configure SPI1 as I2S Slave mode and demonstrate how I2S works in Slave mode. This sample code needs to work with I2S_Master.
PDMA
Use PDMA channel 2 to transfer data from memory to memory.
PDMA_Scatter_Gather
Use PDMA channel 5 to transfer data from memory to memory by scatter-gather mode.
PDMA_ScatterGather_PingPongBuffer
Use PDMA to implement Ping-Pong buffer by scatter-gather mode (memory to memory).
PWM_Capture
Capture the PWM1 Channel 0 waveform by PWM1 Channel 2.
PWM_DeadZone
Demonstrate how to use PWM Dead Zone function.
PWM_DoubleBuffer
Change duty cycle and period of output waveform by PWM Double Buffer function.
PWM_PDMA_Capture
Capture the PWM1 Channel 0 waveform by PWM1 Channel 2, and use PDMA to transfer captured data.
RTC_AlarmWakeup
Use RTC alarm interrupt event to wake up system.
RTC_SpareRegisterRW
Show how to access RTC spare registers.
RTC_TimeAndTick
Get the current RTC data/time per tick.
SC_ReadATR
Read the smartcard ATR from smartcard 0 interface.
SCUART_TxRx
Show smartcard UART mode by connecting PA.0 and PA.1 pins.
SPI_Loopback
Implement SPI Master loop back transfer. This sample code needs to connect SPI0_MISO0 pin and SPI0_MOSI0 pin together. It will compare the received data with transmitted data. SPI_MasterMode
Configure SPI0 as Master mode and demonstrate how to communicate with an off-chip SPI Slave device. Needs to work with SPI_SlaveMode.
SPI_PDMA_LoopTest
Demonstrate SPI data transfer with PDMA. SPI0 will be configured as Master mode and SPI1 will be configured as Slave mode. Both TX PDMA function and RX PDMA function will be enabled. SPI_SlaveMode
Configure SPI0 as Slave mode and demonstrate how to communicate with an off-chip SPI Master device. This sample code needs to work with SPI_MasterMode. SYS_BODWakeup
Show how to wake up system form Power-down mode bybrown-out detector interrupt. SYS_PLLClockOutputChange system clock to different PLL frequency and output system clock from CLKO pin.
TIMER_EventCounter
Implement timer1 event counter function to count the external input event.
TIMER_CaptureCounter
Show how to use the timer2 capture function to capture timer2 counter value.
TIMER_Delay
Show how to use timer0 to create various delay time.
TIMER_PeriodicINT
Implement timer counting in periodic mode.
TIMER_TimeoutWakeup
Use timer0 periodic time-out interrupt event to wake up system.
UART_AutoBaudRate_Master
Show how to use auto baud rate detection function. This sample code needs to work with UART_AutoBaudRate_Slave.
UART_AutoBaudRate_Slave
Show how to use auto baud rate detection function. This sample code needs to work with UART_AutoBaudRate_Master.
UART_Autoflow_Master
Transmit and receive data with auto flow control. This sample code needs to work with UART_Autoflow_Slave.
UART_Autoflow_Slave
Transmit and receive data with auto flow control. This sample code needs to work with UART_Autoflow_Master.
UART_IrDA_Master
Transmit and receive data in UART IrDA mode. This sample code needs to work with UART_IrDA_Slave.
UART_IrDA_Slave
Transmit and receive data in UART IrDA mode. This sample code needs to work with UART_IrDA_Master.
UART_LIN
Transmit LIN header and response.
UART_PDMA
Transmit and receive UART data with PDMA.
UART_RS485_Master
Transmit and receive data in UART RS485 mode. This sample code needs to work with UART_RS485_Slave.
UART_RS485_Slave
Transmit and receive data in UART RS485 mode. This sample code needs to work with UART_RS485_Master.
UART_TxRxFunction
Transmit and receive data from PC terminal through RS232 interface.
UART_Wakeup
Show how to wake up system form Power-down mode by UART interrupt.
USBD_Audio_HID_NAU8822
Implement a USB audio class device with HID key. NAU8822 is used in this sample code to play the audio data from Host. It also supports to record data from NAU8822 to Host.
USBD_Audio_NAU8822
Demonstrate how to implement a USB audio class device. NAU8822 is used in this sample code to play the audio data from Host. It also supports to record data from NAU8822 to Host. USBD_HID_Keyboard
Show how to implement a USB keyboard device. This sample code supports to use GPIO to simulate key input.
USBD_HID_Mouse
Show how to implement a USB mouse device. The mouse cursor will move automatically when this mouse device connecting to PC by USB.
USBD_HID_MouseKeyboard
Demonstrate how to implement a USB mouse function and a USB keyboard on the same USB device. The mouse cursor will move automatically when this mouse device connecting to PC. This sample code uses a GPIO to simulate key input.
USBD_HID_Transfer
Transfer data between USB device and PC through USB HID interface. A windows tool is also included in this sample code to connect with USB device.
USBD_HID_Transfer_and_Keyboard
Demonstrate how to implement a composite device (HID Transfer and keyboard). Transfer data between USB device and PC through USB HID interface. A windows tool is also included in this sample code to connect with USB device.
USBD_HID_Transfer_and_MSC
Demonstrate how to implement a composite device (HID Transfer and Mass storage). Transfer data between USB
device and PC through USB HID interface. A windows tool is also included in this sample code to connect with a USB device.
USBD_MassStorage_CDROM
Demonstrate how to simulate a USB CD-ROM device.
USBD_MassStorage_DataFlash
Use embedded data flash as storage to implement a USB Mass-Storage device.
USBD_Micro_Printer
Show how to implement a USB micro printer device.
USBD_Printer_and_HID_Transfer
Demonstrate how to implement a composite device (USB micro printer device and HID Transfer). Transfer data between USB device and PC through USB HID interface. A windows tool is also included in this sample code to connect with a USB device.
USBD_VCOM_and_HID_Keyboard
Implement a USB composite device with virtual COM port and keyboard functions.
USBD_VCOM_and_HID_Transfer
Demonstrate how to implement a composite device (VCOM and HID Transfer). It supports one virtual COM port and transfers data between USB device and PC through USB HID interface. A windows tool is also included in this sample code to connect with a USB device.
USBD_VCOM_and_MassStorage
Implement a USB composite device. It supports one virtual COM port and one USB Mass-Storage device.
USBD_VCOM_DualPort
Demonstrate how to implement a USB dual virtual COM port device.
USBD_VCOM_SinglePort
Implement a USB virtual COM port device. It supports one virtual COM port.