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| author | Joey Castillo <jose.castillo@gmail.com> | 2021-07-20 15:45:04 -0400 |
|---|---|---|
| committer | Joey Castillo <jose.castillo@gmail.com> | 2021-07-20 15:45:04 -0400 |
| commit | bc1ee49d80252defad1fcf0723cd4af68a374c06 (patch) | |
| tree | 52287aa21faece1408fb796174b228538cbe6f72 /Sensor Watch Starter Project | |
| parent | 18054a9e8f77cd9379d09d8f03a2f6243eed027f (diff) | |
| download | Sensor-Watch-bc1ee49d80252defad1fcf0723cd4af68a374c06.tar.gz Sensor-Watch-bc1ee49d80252defad1fcf0723cd4af68a374c06.tar.bz2 Sensor-Watch-bc1ee49d80252defad1fcf0723cd4af68a374c06.zip | |
get UART working on SERCOM3 (9-pin A2/D1)
Diffstat (limited to 'Sensor Watch Starter Project')
| -rwxr-xr-x | Sensor Watch Starter Project/main.c | 24 |
1 files changed, 12 insertions, 12 deletions
diff --git a/Sensor Watch Starter Project/main.c b/Sensor Watch Starter Project/main.c index 844b3d88..27e6efb7 100755 --- a/Sensor Watch Starter Project/main.c +++ b/Sensor Watch Starter Project/main.c @@ -40,8 +40,8 @@ HAL_GPIO_PIN(LED, A, 21) HAL_GPIO_PIN(BUTTON, A, 30) -HAL_GPIO_PIN(UART_TX, A, 22) -HAL_GPIO_PIN(UART_RX, A, 23) +HAL_GPIO_PIN(UART_TX, B, 0) +HAL_GPIO_PIN(UART_RX, B, 2) //----------------------------------------------------------------------------- static void timer_set_period(uint16_t i) @@ -93,28 +93,28 @@ static void uart_init(uint32_t baud) HAL_GPIO_UART_RX_in(); HAL_GPIO_UART_RX_pmuxen(HAL_GPIO_PMUX_C); - MCLK->APBCMASK.reg |= MCLK_APBCMASK_SERCOM0; + MCLK->APBCMASK.reg |= MCLK_APBCMASK_SERCOM3; - GCLK->PCHCTRL[SERCOM0_GCLK_ID_CORE].reg = GCLK_PCHCTRL_GEN(0) | GCLK_PCHCTRL_CHEN; - while (0 == (GCLK->PCHCTRL[SERCOM0_GCLK_ID_CORE].reg & GCLK_PCHCTRL_CHEN)); + GCLK->PCHCTRL[SERCOM3_GCLK_ID_CORE].reg = GCLK_PCHCTRL_GEN(0) | GCLK_PCHCTRL_CHEN; + while (0 == (GCLK->PCHCTRL[SERCOM3_GCLK_ID_CORE].reg & GCLK_PCHCTRL_CHEN)); - SERCOM0->USART.CTRLA.reg = + SERCOM3->USART.CTRLA.reg = SERCOM_USART_CTRLA_DORD | SERCOM_USART_CTRLA_MODE(1/*USART_INT_CLK*/) | - SERCOM_USART_CTRLA_RXPO(3/*PAD3*/) | SERCOM_USART_CTRLA_TXPO(1/*PAD2*/); + SERCOM_USART_CTRLA_RXPO(0/*PAD0*/) | SERCOM_USART_CTRLA_TXPO(1/*PAD2*/); - SERCOM0->USART.CTRLB.reg = SERCOM_USART_CTRLB_RXEN | SERCOM_USART_CTRLB_TXEN | + SERCOM3->USART.CTRLB.reg = SERCOM_USART_CTRLB_RXEN | SERCOM_USART_CTRLB_TXEN | SERCOM_USART_CTRLB_CHSIZE(0/*8 bits*/); - SERCOM0->USART.BAUD.reg = (uint16_t)br; + SERCOM3->USART.BAUD.reg = (uint16_t)br; - SERCOM0->USART.CTRLA.reg |= SERCOM_USART_CTRLA_ENABLE; + SERCOM3->USART.CTRLA.reg |= SERCOM_USART_CTRLA_ENABLE; } //----------------------------------------------------------------------------- static void uart_putc(char c) { - while (!(SERCOM0->USART.INTFLAG.reg & SERCOM_USART_INTFLAG_DRE)); - SERCOM0->USART.DATA.reg = c; + while (!(SERCOM3->USART.INTFLAG.reg & SERCOM_USART_INTFLAG_DRE)); + SERCOM3->USART.DATA.reg = c; } //----------------------------------------------------------------------------- |