STM32 Nucleo-F072RB

Support for the STM32 Nucleo-F072RB.

Overview

The Nucleo-F072 is a board from ST’s Nucleo family supporting a ARM Cortex-M0 STM32F072RB microcontroller with 16Kb of SRAM and 128Kb of ROM Flash.

Hardware

MCU

MCU STM32F072RB
Family ARM Cortex-M0
Vendor ST Microelectronics
RAM 16Kb
Flash 128Kb
Frequency up to 48MHz)
FPU yes
Timers 12 (2x watchdog, 1 SysTick, 8x 16-bit, 1x 32-bit)
ADCs 1x 12-bit (up to 16 channels)
UARTs 4
SPIs 2
I2Cs 2
RTC 1
Vcc 2.0V - 3.6V
Datasheet Datasheet
Reference Manual Reference Manual
Programming Manual Programming Manual
Board Manual Board Manual

MCU

MCU STM32F072RB
Family ARM Cortex-M0
Vendor ST Microelectronics
RAM 16Kb
Flash 128Kb
Frequency up to 48MHz)
FPU yes
Timers 12 (2x watchdog, 1 SysTick, 8x 16-bit, 1x 32-bit)
ADCs 1x 12-bit (up to 16 channels)
UARTs 4
SPIs 2
I2Cs 2
RTC 1
Vcc 2.0V - 3.6V
Datasheet Datasheet
Reference Manual Reference Manual
Programming Manual Programming Manual
Board Manual Board Manual

Implementation Status

Device ID Supported Comments
MCU STM32F072RB partly Energy saving modes not fully utilized
Low-level driver GPIO yes
PWM yes (4 pins available)
UART 3 UARTs USART2 via STLink/USB or D0(RX)/D1(TX), USART1 on PA10(RX)/PA09(TX) and USART3 on PC11(RX)/PC10(TX)
PWM 7 pins
ADC 6 pins
I2C no
SPI yes (SPI1)
USB no
Timer 1 32 bit timers (TIM1)

Flashing the device

The ST Nucleo-F072 board includes an on-board ST-LINK V2 programmer. The easiest way to program the board is to use OpenOCD. Once you have installed OpenOCD (look here for installation instructions), you can flash the board simply by typing

1
make BOARD=nucleo-f072 flash
and debug via GDB by simply typing 
1
make BOARD=nucleo-f072 debug

Supported Toolchains

For using the ST Nucleo-F072 board we strongly recommend the usage of the GNU Tools for ARM Embedded Processors toolchain.

CLOCK_CORECLOCK
1
(48000000U)
CLOCK_HSE
1
(8000000U)
CLOCK_LSE
1
(1)
CLOCK_AHB_DIV
1
RCC_CFGR_HPRE_DIV1
CLOCK_AHB
1
(CLOCK_CORECLOCK / 1)
CLOCK_APB1_DIV
1
RCC_CFGR_PPRE_DIV1      /* max 48MHz */
CLOCK_APB1
1
(CLOCK_CORECLOCK / 1)
CLOCK_APB2
1
(CLOCK_APB1)
CLOCK_PLL_PREDIV
1
(1)
CLOCK_PLL_MUL
1
(6)
const timer_conf_t timer_config()
1
2
3
4
5
6
7
8
9
= {
    {
        .dev      = TIM1,
        .max      = 0x0000ffff,
        .rcc_mask = RCC_APB2ENR_TIM1EN,
        .bus      = APB2,
        .irqn     = TIM1_CC_IRQn
    }
}
TIMER_0_ISR
1
isr_tim1_cc
TIMER_NUMOF
1
(sizeof(timer_config) / sizeof(timer_config[0]))
const uart_conf_t uart_config()
UART_0_ISR
1
(isr_usart2)
UART_1_ISR
1
(isr_usart1)
UART_2_ISR
1
(isr_usart3_8)
UART_NUMOF
1
(sizeof(uart_config) / sizeof(uart_config[0]))
const pwm_conf_t pwm_config()
PWM_NUMOF
1
(sizeof(pwm_config) / sizeof(pwm_config[0]))
const uint8_t spi_divtable()
 1
 2
 3
 4
 5
 6
 7
 8
 9
10
11
12
13
14
15
16
= {
    {       
        7,  
        6,  
        5,  
        2,  
        1   
    },
    {       
        7,  
        6,  
        5,  
        2,  
        1   
    }
}
const spi_conf_t spi_config()
 1
 2
 3
 4
 5
 6
 7
 8
 9
10
11
12
13
14
15
16
17
18
19
20
21
22
= {
    {
        .dev      = SPI1,
        .mosi_pin = GPIO_PIN(PORT_A, 7),
        .miso_pin = GPIO_PIN(PORT_A, 6),
        .sclk_pin = GPIO_PIN(PORT_A, 5),
        .cs_pin   = GPIO_PIN(PORT_A, 4),
        .af       = GPIO_AF0,
        .rccmask  = RCC_APB2ENR_SPI1EN,
        .apbbus   = APB2
    },
    {
        .dev      = SPI2,
        .mosi_pin = GPIO_PIN(PORT_B, 15),
        .miso_pin = GPIO_PIN(PORT_B, 14),
        .sclk_pin = GPIO_PIN(PORT_B, 13),
        .cs_pin   = GPIO_PIN(PORT_B, 12),
        .af       = GPIO_AF0,
        .rccmask  = RCC_APB1ENR_SPI2EN,
        .apbbus   = APB1
    },
}
SPI_NUMOF
1
(sizeof(spi_config) / sizeof(spi_config[0]))
ADC_CONFIG
1
2
3
4
5
6
7
8
{            \
    { GPIO_PIN(PORT_A, 0), 0 }, \
    { GPIO_PIN(PORT_A, 1), 1 }, \
    { GPIO_PIN(PORT_A, 4), 4 }, \
    { GPIO_PIN(PORT_B, 0), 8 }, \
    { GPIO_PIN(PORT_C, 1), 11 },\
    { GPIO_PIN(PORT_C, 0), 10 } \
}
ADC_NUMOF
1
(6)
RTC_NUMOF

Nucleos with MB1136 C-02 or MB1136 C-03 -sticker on it have the required LSE oscillator provided on the X2 slot. 

1
(1U)

See Nucleo User Manual UM1724 section 5.6.2.