diff --git a/examples/stm32/f1/other/rtc/rtc.c b/examples/stm32/f1/other/rtc/rtc.c index 28ae24ca..7203e5d5 100644 --- a/examples/stm32/f1/other/rtc/rtc.c +++ b/examples/stm32/f1/other/rtc/rtc.c @@ -73,7 +73,7 @@ void rtc_isr(void) volatile u32 j = 0, c = 0; /* The interrupt flag isn't cleared by hardware, we have to do it. */ - rtc_clear_flag(RTC_SEC); + rtc_clear_flag(RTC_SEC); /* Visual output. */ gpio_toggle(GPIOC, GPIO12); @@ -110,7 +110,7 @@ int main(void) /* Enable the RTC interrupt to occur off the SEC flag. */ rtc_interrupt_enable(RTC_SEC); - while(1); + while (1); return 0; } diff --git a/examples/stm32/f1/other/systick/systick.c b/examples/stm32/f1/other/systick/systick.c index 173ff2af..2422d6e9 100644 --- a/examples/stm32/f1/other/systick/systick.c +++ b/examples/stm32/f1/other/systick/systick.c @@ -37,11 +37,11 @@ void gpio_setup(void) GPIO_CNF_OUTPUT_PUSHPULL, GPIO7); } -void sys_tick_handler() +void sys_tick_handler(void) { temp32++; - - /* we call this handler every 1ms so 1000ms = 1s on/off */ + + /* We call this handler every 1ms so 1000ms = 1s on/off. */ if (temp32 == 1000) { gpio_toggle(GPIOB, GPIO6); /* LED2 on/off */ temp32 = 0; @@ -50,26 +50,26 @@ void sys_tick_handler() int main(void) { - rcc_clock_setup_in_hse_16mhz_out_72mhz(); + rcc_clock_setup_in_hse_16mhz_out_72mhz(); gpio_setup(); gpio_clear(GPIOB, GPIO7); /* LED1 on */ gpio_set(GPIOB, GPIO6); /* LED2 off */ - + temp32 = 0; /* 72MHz / 8 => 9000000 counts per second */ - systick_set_clocksource(STK_CTRL_CLKSOURCE_AHB_DIV8); + systick_set_clocksource(STK_CTRL_CLKSOURCE_AHB_DIV8); /* 9000000/9000 = 1000 overflows per second - every 1ms one interrupt */ systick_set_reload(9000); systick_interrupt_enable(); - /* start counting */ + /* Start counting. */ systick_counter_enable(); - - while(1); /* Halt. */ + + while (1); /* Halt. */ return 0; } diff --git a/examples/stm32/f1/other/timer_interrupt/timer.c b/examples/stm32/f1/other/timer_interrupt/timer.c index 422df885..b523503a 100644 --- a/examples/stm32/f1/other/timer_interrupt/timer.c +++ b/examples/stm32/f1/other/timer_interrupt/timer.c @@ -35,51 +35,51 @@ void gpio_setup(void) GPIO_CNF_OUTPUT_PUSHPULL, GPIO7); } -void nvic_setup() +void nvic_setup(void) { - /* without this the timer interrupt routine will never be called */ + /* Without this the timer interrupt routine will never be called. */ nvic_enable_irq(NVIC_TIM2_IRQ); - nvic_set_priority(NVIC_TIM2_IRQ, 1); + nvic_set_priority(NVIC_TIM2_IRQ, 1); } -void tim2_isr() +void tim2_isr(void) { - /* LED2 on/off */ - gpio_toggle(GPIOB, GPIO6); - - /* clear interrrupt flag */ - TIM_SR(TIM2) &= ~TIM_SR_UIF; + gpio_toggle(GPIOB, GPIO6); /* LED2 on/off. */ + TIM_SR(TIM2) &= ~TIM_SR_UIF; /* Clear interrrupt flag. */ } int main(void) { - rcc_clock_setup_in_hse_16mhz_out_72mhz(); + rcc_clock_setup_in_hse_16mhz_out_72mhz(); gpio_setup(); nvic_setup(); gpio_clear(GPIOB, GPIO7); /* LED1 on */ gpio_set(GPIOB, GPIO6); /* LED2 off */ - + rcc_peripheral_enable_clock(&RCC_APB1ENR, RCC_APB1ENR_TIM2EN); - /* the goal is to let the LED2 glow for a second and then be off for a second */ + /* + * The goal is to let the LED2 glow for a second and then be + * off for a second. + */ - /* Set timer start value */ + /* Set timer start value. */ TIM_CNT(TIM2) = 1; - /* Set timer prescaler. 72MHz/1440 => 50000 counts per second */ + /* Set timer prescaler. 72MHz/1440 => 50000 counts per second. */ TIM_PSC(TIM2) = 1440; - /* End timer value. If this value is reached an interrupt is generated */ + /* End timer value. If this is reached an interrupt is generated. */ TIM_ARR(TIM2) = 50000; - /* Update interrupt enable */ + /* Update interrupt enable. */ TIM_DIER(TIM2) |= TIM_DIER_UIE; - /* Start timer */ + /* Start timer. */ TIM_CR1(TIM2) |= TIM_CR1_CEN; - while(1); /* Halt. */ + while (1); /* Halt. */ return 0; } diff --git a/examples/stm32/f1/other/usb_cdcacm/cdcacm.c b/examples/stm32/f1/other/usb_cdcacm/cdcacm.c index d26b898e..6e8b0ed7 100644 --- a/examples/stm32/f1/other/usb_cdcacm/cdcacm.c +++ b/examples/stm32/f1/other/usb_cdcacm/cdcacm.c @@ -24,25 +24,27 @@ #include static const struct usb_device_descriptor dev = { - .bLength = USB_DT_DEVICE_SIZE, - .bDescriptorType = USB_DT_DEVICE, - .bcdUSB = 0x0200, - .bDeviceClass = USB_CLASS_CDC, - .bDeviceSubClass = 0, - .bDeviceProtocol = 0, - .bMaxPacketSize0 = 64, - .idVendor = 0x0483, - .idProduct = 0x5740, - .bcdDevice = 0x0200, - .iManufacturer = 1, - .iProduct = 2, - .iSerialNumber = 3, - .bNumConfigurations = 1, + .bLength = USB_DT_DEVICE_SIZE, + .bDescriptorType = USB_DT_DEVICE, + .bcdUSB = 0x0200, + .bDeviceClass = USB_CLASS_CDC, + .bDeviceSubClass = 0, + .bDeviceProtocol = 0, + .bMaxPacketSize0 = 64, + .idVendor = 0x0483, + .idProduct = 0x5740, + .bcdDevice = 0x0200, + .iManufacturer = 1, + .iProduct = 2, + .iSerialNumber = 3, + .bNumConfigurations = 1, }; -/* This notification endpoint isn't implemented. According to CDC spec its - * optional, but its absence causes a NULL pointer dereference in Linux cdc_acm - * driver. */ +/* + * This notification endpoint isn't implemented. According to CDC spec its + * optional, but its absence causes a NULL pointer dereference in Linux + * cdc_acm driver. + */ static const struct usb_endpoint_descriptor comm_endp[] = {{ .bLength = USB_DT_ENDPOINT_SIZE, .bDescriptorType = USB_DT_ENDPOINT, @@ -159,7 +161,7 @@ static const char *usb_strings[] = { "x", "Black Sphere Technologies", "CDC-ACM Demo", - "DEMO" + "DEMO", }; static int cdcacm_control_request(struct usb_setup_data *req, u8 **buf, @@ -170,13 +172,15 @@ static int cdcacm_control_request(struct usb_setup_data *req, u8 **buf, switch(req->bRequest) { case USB_CDC_REQ_SET_CONTROL_LINE_STATE: { - /* This Linux cdc_acm driver requires this to be implemented - * even though it's optional in the CDC spec, and we don't - * advertise it in the ACM functional descriptor. */ + /* + * This Linux cdc_acm driver requires this to be implemented + * even though it's optional in the CDC spec, and we don't + * advertise it in the ACM functional descriptor. + */ char buf[10]; - struct usb_cdc_notification *notif = (void*)buf; + struct usb_cdc_notification *notif = (void *)buf; - /* We echo signals back to host as notification */ + /* We echo signals back to host as notification. */ notif->bmRequestType = 0xA1; notif->bNotification = USB_CDC_NOTIFY_SERIAL_STATE; notif->wValue = 0; @@ -184,11 +188,11 @@ static int cdcacm_control_request(struct usb_setup_data *req, u8 **buf, notif->wLength = 2; buf[8] = req->wValue & 3; buf[9] = 0; - //usbd_ep_write_packet(0x83, buf, 10); + // usbd_ep_write_packet(0x83, buf, 10); return 1; } case USB_CDC_REQ_SET_LINE_CODING: - if(*len < sizeof(struct usb_cdc_line_coding)) + if(*len < sizeof(struct usb_cdc_line_coding)) return 0; return 1; @@ -202,7 +206,8 @@ static void cdcacm_data_rx_cb(u8 ep) char buf[64]; int len = usbd_ep_read_packet(0x01, buf, 64); - if(len) { + + if (len) { usbd_ep_write_packet(0x82, buf, len); buf[len] = 0; } @@ -217,14 +222,14 @@ static void cdcacm_set_config(u16 wValue) usbd_ep_setup(0x83, USB_ENDPOINT_ATTR_INTERRUPT, 16, NULL); usbd_register_control_callback( - USB_REQ_TYPE_CLASS | USB_REQ_TYPE_INTERFACE, + USB_REQ_TYPE_CLASS | USB_REQ_TYPE_INTERFACE, USB_REQ_TYPE_TYPE | USB_REQ_TYPE_RECIPIENT, cdcacm_control_request); } int main(void) { - rcc_clock_setup_in_hsi_out_48mhz(); + rcc_clock_setup_in_hsi_out_48mhz(); rcc_peripheral_enable_clock(&RCC_APB2ENR, RCC_APB2ENR_IOPAEN); rcc_peripheral_enable_clock(&RCC_APB2ENR, RCC_APB2ENR_AFIOEN); @@ -237,9 +242,9 @@ int main(void) usbd_register_set_config_callback(cdcacm_set_config); gpio_set(GPIOA, GPIO15); - gpio_set_mode(GPIOA, GPIO_MODE_OUTPUT_2_MHZ, - GPIO_CNF_OUTPUT_PUSHPULL, GPIO15); + gpio_set_mode(GPIOA, GPIO_MODE_OUTPUT_2_MHZ, + GPIO_CNF_OUTPUT_PUSHPULL, GPIO15); - while (1) + while (1) usbd_poll(); } diff --git a/examples/stm32/f1/other/usb_dfu/usbdfu.c b/examples/stm32/f1/other/usb_dfu/usbdfu.c index 15bb536c..3144c709 100644 --- a/examples/stm32/f1/other/usb_dfu/usbdfu.c +++ b/examples/stm32/f1/other/usb_dfu/usbdfu.c @@ -111,7 +111,7 @@ static const char *usb_strings[] = { "DFU Demo", "DEMO", /* This string is used by ST Microelectronics' DfuSe utility. */ - "@Internal Flash /0x08000000/8*001Ka,56*001Kg" + "@Internal Flash /0x08000000/8*001Ka,56*001Kg", }; static u8 usbdfu_getstatus(u32 *bwPollTimeout) diff --git a/examples/stm32/f1/other/usb_hid/usbhid.c b/examples/stm32/f1/other/usb_hid/usbhid.c index 7c0186e9..1555ead3 100644 --- a/examples/stm32/f1/other/usb_hid/usbhid.c +++ b/examples/stm32/f1/other/usb_hid/usbhid.c @@ -33,23 +33,23 @@ #endif const struct usb_device_descriptor dev = { - .bLength = USB_DT_DEVICE_SIZE, - .bDescriptorType = USB_DT_DEVICE, - .bcdUSB = 0x0200, - .bDeviceClass = 0, - .bDeviceSubClass = 0, - .bDeviceProtocol = 0, - .bMaxPacketSize0 = 64, - .idVendor = 0x0483, - .idProduct = 0x5710, - .bcdDevice = 0x0200, - .iManufacturer = 1, - .iProduct = 2, - .iSerialNumber = 3, - .bNumConfigurations = 1, + .bLength = USB_DT_DEVICE_SIZE, + .bDescriptorType = USB_DT_DEVICE, + .bcdUSB = 0x0200, + .bDeviceClass = 0, + .bDeviceSubClass = 0, + .bDeviceProtocol = 0, + .bMaxPacketSize0 = 64, + .idVendor = 0x0483, + .idProduct = 0x5710, + .bcdDevice = 0x0200, + .iManufacturer = 1, + .iProduct = 2, + .iSerialNumber = 3, + .bNumConfigurations = 1, }; -/* I have no idea what this means. I haven't read the HID spec. */ +/* I have no idea what this means. I haven't read the HID spec. */ static const u8 hid_report_descriptor[] = { 0x05, 0x01, 0x09, 0x02, 0xA1, 0x01, 0x09, 0x01, 0xA1, 0x00, 0x05, 0x09, 0x19, 0x01, 0x29, 0x03, @@ -60,7 +60,7 @@ static const u8 hid_report_descriptor[] = { 0x81, 0x06, 0xC0, 0x09, 0x3c, 0x05, 0xff, 0x09, 0x01, 0x15, 0x00, 0x25, 0x01, 0x75, 0x01, 0x95, 0x02, 0xb1, 0x22, 0x75, 0x06, 0x95, 0x01, 0xb1, - 0x01, 0xc0 + 0x01, 0xc0, }; static const struct { @@ -174,13 +174,13 @@ static int hid_control_request(struct usb_setup_data *req, u8 **buf, u16 *len, { (void)complete; - if((req->bmRequestType != 0x81) || + if((req->bmRequestType != 0x81) || (req->bRequest != USB_REQ_GET_DESCRIPTOR) || - (req->wValue != 0x2200)) - return 0; + (req->wValue != 0x2200)) + return 0; - /* Handle the HID report descriptor */ - *buf = (u8*)hid_report_descriptor; + /* Handle the HID report descriptor. */ + *buf = (u8 *)hid_report_descriptor; *len = sizeof(hid_report_descriptor); return 1; @@ -192,8 +192,8 @@ static void dfu_detach_complete(struct usb_setup_data *req) (void)req; gpio_set_mode(GPIOA, GPIO_MODE_INPUT, 0, GPIO15); - gpio_set_mode(GPIOA, GPIO_MODE_OUTPUT_2_MHZ, - GPIO_CNF_OUTPUT_PUSHPULL, GPIO10); + gpio_set_mode(GPIOA, GPIO_MODE_OUTPUT_2_MHZ, + GPIO_CNF_OUTPUT_PUSHPULL, GPIO10); gpio_set(GPIOA, GPIO10); scb_reset_core(); } @@ -201,11 +201,11 @@ static void dfu_detach_complete(struct usb_setup_data *req) static int dfu_control_request(struct usb_setup_data *req, u8 **buf, u16 *len, void (**complete)(struct usb_setup_data *req)) { - (void)buf; + (void)buf; (void)len; - if((req->bmRequestType != 0x21) || (req->bRequest != DFU_DETACH)) - return 0; /* Only accept class request */ + if ((req->bmRequestType != 0x21) || (req->bRequest != DFU_DETACH)) + return 0; /* Only accept class request. */ *complete = dfu_detach_complete; @@ -230,7 +230,7 @@ static void hid_set_config(u16 wValue) dfu_control_request); #endif - systick_set_clocksource(STK_CTRL_CLKSOURCE_AHB_DIV8); + systick_set_clocksource(STK_CTRL_CLKSOURCE_AHB_DIV8); systick_set_reload(100000); systick_interrupt_enable(); systick_counter_enable(); @@ -238,7 +238,7 @@ static void hid_set_config(u16 wValue) int main(void) { - rcc_clock_setup_in_hsi_out_48mhz(); + rcc_clock_setup_in_hsi_out_48mhz(); rcc_peripheral_enable_clock(&RCC_APB2ENR, RCC_APB2ENR_IOPAEN); rcc_peripheral_enable_clock(&RCC_APB2ENR, RCC_APB2ENR_AFIOEN); @@ -250,10 +250,10 @@ int main(void) usbd_register_set_config_callback(hid_set_config); gpio_set(GPIOA, GPIO15); - gpio_set_mode(GPIOA, GPIO_MODE_OUTPUT_2_MHZ, - GPIO_CNF_OUTPUT_PUSHPULL, GPIO15); + gpio_set_mode(GPIOA, GPIO_MODE_OUTPUT_2_MHZ, + GPIO_CNF_OUTPUT_PUSHPULL, GPIO15); - while (1) + while (1) usbd_poll(); } @@ -265,8 +265,10 @@ void sys_tick_handler(void) buf[1] = dir; x += dir; - if(x > 30) dir = -dir; - if(x < -30) dir = -dir; + if (x > 30) + dir = -dir; + if (x < -30) + dir = -dir; usbd_ep_write_packet(0x81, buf, 4); }