STM32F103C8 based boards common

Shared files and configuration for STM32F103C8 based boards.

CLOCK_CORECLOCK
1
(72000000U)
CLOCK_HSE
1
(8000000U)
CLOCK_LSE
1
(1U)
CLOCK_AHB_DIV
1
RCC_CFGR_HPRE_DIV1
CLOCK_AHB
1
(CLOCK_CORECLOCK / 1)
CLOCK_APB1_DIV
1
RCC_CFGR_PPRE1_DIV2     /* max 36MHz */
CLOCK_APB1
1
(CLOCK_CORECLOCK / 2)
CLOCK_APB2_DIV
1
RCC_CFGR_PPRE2_DIV1     /* max 72MHz */
CLOCK_APB2
1
(CLOCK_CORECLOCK / 1)
CLOCK_PLL_PREDIV
1
(1)
CLOCK_PLL_MUL
1
(9)
ADC_CONFIG
 1
 2
 3
 4
 5
 6
 7
 8
 9
10
11
12
{                                     \
    { .dev = 0, .pin = GPIO_PIN(PORT_A, 0), .chan = 0 }, \
    { .dev = 0, .pin = GPIO_PIN(PORT_A, 1), .chan = 1 }, \
    { .dev = 0, .pin = GPIO_PIN(PORT_A, 2), .chan = 2 }, \
    { .dev = 0, .pin = GPIO_PIN(PORT_A, 3), .chan = 3 }, \
    { .dev = 0, .pin = GPIO_PIN(PORT_A, 4), .chan = 4 }, \
    { .dev = 0, .pin = GPIO_PIN(PORT_A, 5), .chan = 5 }, \
    { .dev = 0, .pin = GPIO_PIN(PORT_A, 6), .chan = 6 }, \
    { .dev = 0, .pin = GPIO_PIN(PORT_A, 7), .chan = 7 }, \
    { .dev = 0, .pin = GPIO_PIN(PORT_B, 0), .chan = 8 }, \
    { .dev = 0, .pin = GPIO_PIN(PORT_B, 1), .chan = 9 }, \
}
ADC_NUMOF
1
10
const timer_conf_t timer_config()
 1
 2
 3
 4
 5
 6
 7
 8
 9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
= {
    {
        .dev      = TIM2,
        .max      = 0x0000ffff,
        .rcc_mask = RCC_APB1ENR_TIM2EN,
        .bus      = APB1,
        .irqn     = TIM2_IRQn
    },
    {
        .dev      = TIM3,
        .max      = 0x0000ffff,
        .rcc_mask = RCC_APB1ENR_TIM3EN,
        .bus      = APB1,
        .irqn     = TIM3_IRQn
    },
    {
        .dev      = TIM4,
        .max      = 0x0000ffff,
        .rcc_mask = RCC_APB1ENR_TIM4EN,
        .bus      = APB1,
        .irqn     = TIM4_IRQn
    }
}
TIMER_0_ISR
1
isr_tim2
TIMER_1_ISR
1
isr_tim3
TIMER_2_ISR
1
isr_tim4
TIMER_NUMOF
1
(sizeof(timer_config) / sizeof(timer_config[0]))
const uart_conf_t uart_config()
 1
 2
 3
 4
 5
 6
 7
 8
 9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
= {
    {
        .dev        = USART1,
        .rcc_mask   = RCC_APB2ENR_USART1EN,
        .rx_pin     = GPIO_PIN(PORT_A, 10),
        .tx_pin     = GPIO_PIN(PORT_A, 9),
        .bus        = APB2,
        .irqn       = USART1_IRQn
    },
    {
        .dev        = USART2,
        .rcc_mask   = RCC_APB1ENR_USART2EN,
        .rx_pin     = GPIO_PIN(PORT_A, 3),
        .tx_pin     = GPIO_PIN(PORT_A, 2),
        .bus        = APB1,
        .irqn       = USART2_IRQn
    },
    {
        .dev        = USART3,
        .rcc_mask   = RCC_APB1ENR_USART3EN,
        .rx_pin     = GPIO_PIN(PORT_B, 11),
        .tx_pin     = GPIO_PIN(PORT_B, 10),
        .bus        = APB1,
        .irqn       = USART3_IRQn
    }
}
UART_0_ISR
1
(isr_usart1)
UART_1_ISR
1
(isr_usart2)
UART_2_ISR
1
(isr_usart3)
UART_NUMOF
1
(sizeof(uart_config) / sizeof(uart_config[0]))
const i2c_conf_t i2c_config()
 1
 2
 3
 4
 5
 6
 7
 8
 9
10
11
12
13
14
15
16
17
18
19
20
21
22
= {
    {
        .dev            = I2C1,
        .speed          = I2C_SPEED_NORMAL,
        .scl_pin        = GPIO_PIN(PORT_B, 8),
        .sda_pin        = GPIO_PIN(PORT_B, 9),
        .bus            = APB1,
        .rcc_mask       = RCC_APB1ENR_I2C1EN,
        .clk            = CLOCK_APB1,
        .irqn           = I2C1_EV_IRQn
    },
    {
        .dev            = I2C2,
        .speed          = I2C_SPEED_NORMAL,
        .scl_pin        = GPIO_PIN(PORT_B, 10),
        .sda_pin        = GPIO_PIN(PORT_B, 11),
        .bus            = APB1,
        .rcc_mask       = RCC_APB1ENR_I2C2EN,
        .clk            = CLOCK_APB1,
        .irqn           = I2C2_EV_IRQn
    }
}
I2C_0_ISR
1
isr_i2c1_ev
I2C_1_ISR
1
isr_i2c2_ev
I2C_NUMOF
1
(sizeof(i2c_config) / sizeof(i2c_config[0]))
const pwm_conf_t pwm_config()
 1
 2
 3
 4
 5
 6
 7
 8
 9
10
11
12
= {
    {
        .dev      = TIM1,
        .rcc_mask = RCC_APB2ENR_TIM1EN,
        .chan     = { { .pin = GPIO_PIN(PORT_A, 8),  .cc_chan = 0 },
                      { .pin = GPIO_PIN(PORT_A, 9),  .cc_chan = 1 },
                      { .pin = GPIO_PIN(PORT_A, 10), .cc_chan = 2 },
                      { .pin = GPIO_PIN(PORT_A, 11), .cc_chan = 3 } },
        .af       = GPIO_AF_OUT_PP,
        .bus      = APB2
    }
}
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,  
        4,  
        2,  
        1   
    },
    {       
        7,  
        7,  
        5,  
        3,  
        2   
    }
}
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
= {
    {
        .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),
        .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),
        .rccmask  = RCC_APB1ENR_SPI2EN,
        .apbbus   = APB1
    }
}
SPI_NUMOF
1
(sizeof(spi_config) / sizeof(spi_config[0]))