diff options
Diffstat (limited to 'libmaple/util.c')
| -rw-r--r-- | libmaple/util.c | 31 |
1 files changed, 21 insertions, 10 deletions
diff --git a/libmaple/util.c b/libmaple/util.c index a747948..be29e7e 100644 --- a/libmaple/util.c +++ b/libmaple/util.c @@ -1,4 +1,4 @@ -/* ***************************************************************************** +/****************************************************************************** * The MIT License * * Copyright (c) 2010 Perry Hung. @@ -20,13 +20,13 @@ * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN * THE SOFTWARE. - * ****************************************************************************/ + *****************************************************************************/ /** - * @file util.h + * @file util.h * - * @brief Utility procedures for debugging, mostly an error LED fade and - * messages dumped over a uart for failed asserts. + * @brief Utility procedures for debugging, mostly an error LED fade + * and messages dumped over a uart for failed asserts. */ #include "libmaple.h" @@ -52,14 +52,14 @@ void _fail(const char* file, int line, const char* exp) { /* Turn off ADC */ adc_disable(); - /* Turn off all usarts */ + /* Turn off all usarts */ usart_disable_all(); /* Initialize the error usart */ gpio_set_mode(ERROR_TX_PORT, ERROR_TX_PIN, GPIO_MODE_AF_OUTPUT_PP); usart_init(ERROR_USART_NUM, ERROR_USART_BAUD); - /* Print failed assert message */ + /* Print failed assert message */ usart_putstr(ERROR_USART_NUM, "ERROR: FAILED ASSERT("); usart_putstr(ERROR_USART_NUM, exp); usart_putstr(ERROR_USART_NUM, "): "); @@ -68,14 +68,25 @@ void _fail(const char* file, int line, const char* exp) { usart_putudec(ERROR_USART_NUM, line); usart_putc(ERROR_USART_NUM, '\n'); usart_putc(ERROR_USART_NUM, '\r'); - - /* Turn on the error LED */ + + /* Turn on the error LED */ gpio_set_mode(ERROR_LED_PORT, ERROR_LED_PIN, GPIO_MODE_OUTPUT_PP); - /* Turn the USB interrupt back on so the bootloader keeps on functioning */ + /* Turn the USB interrupt back on so the bootloader keeps on functioning */ nvic_irq_enable(NVIC_INT_USBHP); nvic_irq_enable(NVIC_INT_USBLP); + /* Error fade */ + throb(); +} + +void throb(void) { + int32 slope = 1; + uint32 CC = 0x0000; + uint32 TOP_CNT = 0x0200; + uint32 i = 0; + + gpio_set_mode(ERROR_LED_PORT, ERROR_LED_PIN, GPIO_MODE_OUTPUT_PP); /* Error fade */ while (1) { if (CC == TOP_CNT) { |