/** **************************************************************************************** * @brief Enable hardware flow control * @param[in] UART QN_UART0 or QN_UART1 * @description * Enable specified UART port hardware flow control ***************************************************************************************** */ void uart_flow_on(QN_UART_TypeDef *UART) { //uart_uart_SetCRWithMask(UART, UART_MASK_CTS_EN|UART_MASK_RTS_EN, MASK_ENABLE); #if CONFIG_ENABLE_DRIVER_UART0==TRUE // Switch RTS/CTS back if(UART == QN_UART0) { syscon_SetPMCR0WithMask(QN_SYSCON, P02_MASK_PIN_CTRL | P01_MASK_PIN_CTRL, P02_UART0_RTS_PIN_CTRL | P01_UART0_CTS_PIN_CTRL); } #endif #if CONFIG_ENABLE_DRIVER_UART1==TRUE if(UART == QN_UART1) { // NOTE!!!!! // Assume UART1 used P2.2 and P3.6 as RTS/CTS. Other case this snippet should be modified. syscon_SetPMCR1WithMask(QN_SYSCON, P22_MASK_PIN_CTRL | P36_MASK_PIN_CTRL, P22_UART1_RTS_PIN_CTRL | P36_UART1_CTS_PIN_CTRL); } #endif }
/** **************************************************************************************** * @brief Configure the SPI GPIO and set RS 、 RST GPIO output,Init them. * @description * **************************************************************************************** */ void oled_io_config(void) { // pin mux syscon_SetPMCR0WithMask(QN_SYSCON, P03_MASK_PIN_CTRL | P07_MASK_PIN_CTRL | P11_MASK_PIN_CTRL | P13_MASK_PIN_CTRL, P03_GPIO_3_PIN_CTRL | P07_GPIO_7_PIN_CTRL #if (FB_OLED && FB_SPI_OLED) | P13_SPI1_CLK_PIN_CTRL //P1.3 spi1 clk | P11_SPI1_DAT_PIN_CTRL //P1.1 spi1 data out #else | P13_GPIO_11_PIN_CTRL | P11_GPIO_9_PIN_CTRL #endif ); //Init Gpio with a callback,it's necessary //gpio_init(gpio_callback); //set the LCD_RS_PIN an output gpio_set_direction(OLED_RS_PIN,GPIO_OUTPUT); gpio_write_pin(OLED_RS_PIN,GPIO_LOW); //set the LCD_RS_PIN an output gpio_set_direction(OLED_RST_PIN,GPIO_OUTPUT); //prevent it reset the lcd gpio_write_pin(OLED_RST_PIN,GPIO_HIGH); #if (FB_OLED && FB_IIC_OLED) //set the LCD_RS_PIN an output gpio_set_direction(OLED_SCLK_PIN,GPIO_OUTPUT); //prevent it reset the lcd gpio_write_pin(OLED_SCLK_PIN,GPIO_HIGH); //set the LCD_RS_PIN an output gpio_set_direction(OLED_SDIN_PIN,GPIO_OUTPUT); //prevent it reset the lcd gpio_write_pin(OLED_SDIN_PIN,GPIO_HIGH); #endif }
void pwm_io_config(void) { uint32_t reg; uint32_t reg_mask; /** * PMCR0 register pin configure */ reg = P07_SW_CLK_PIN_CTRL | P06_SW_DAT_PIN_CTRL; reg_mask = P07_MASK_PIN_CTRL | P06_MASK_PIN_CTRL; syscon_SetPMCR0WithMask(QN_SYSCON, reg_mask, reg); /** * PMCR1 register pin configure */ reg = P27_PWM0_PIN_CTRL | P26_PWM1_PIN_CTRL; reg_mask = P27_MASK_PIN_CTRL | P26_MASK_PIN_CTRL; syscon_SetPMCR1WithMask(QN_SYSCON, reg_mask, reg); // pin pull ( 00 : High-Z, 01 : Pull-down, 10 : Pull-up, 11 : Reserved ) syscon_SetPPCR0(QN_SYSCON, 0xAAAA5AAA); syscon_SetPPCR1(QN_SYSCON, 0x2AAAAAAA); }
/** **************************************************************************************** * @brief Disable hardware flow control * @param[in] UART QN_UART0 or QN_UART1 * @return TRUE * @description * Disable specified UART port hardware flow control ***************************************************************************************** */ bool uart_flow_off(QN_UART_TypeDef *UART) { //uart_uart_SetCRWithMask(UART, UART_MASK_CTS_EN|UART_MASK_RTS_EN, MASK_DISABLE); //return true; bool rt = false; uint32_t int_restore = 0; // Disable UART interrupt #if CONFIG_ENABLE_DRIVER_UART0==TRUE if(UART == QN_UART0) int_restore = NVIC->ISER[0] & ((1<<UART0_TX_IRQn) | (1<<UART0_RX_IRQn)); #endif #if CONFIG_ENABLE_DRIVER_UART1==TRUE if(UART == QN_UART1) int_restore = NVIC->ISER[0] & ((1<<UART1_TX_IRQn) | (1<<UART1_RX_IRQn)); #endif NVIC->ICER[0] = int_restore; do { // Check if no tx is ongoing if(UART_TX_FREE == uart_check_tx_free(UART)) break; // Disable rx (RTS/CTS -> GPIO high) #if CONFIG_ENABLE_DRIVER_UART0==TRUE if(UART == QN_UART0) { syscon_SetPMCR0WithMask(QN_SYSCON, P02_MASK_PIN_CTRL | P01_MASK_PIN_CTRL, P02_GPIO_2_PIN_CTRL | P01_GPIO_1_PIN_CTRL); gpio_write_pin(GPIO_P02, GPIO_HIGH); gpio_write_pin(GPIO_P01, GPIO_HIGH); } #endif #if CONFIG_ENABLE_DRIVER_UART1==TRUE if(UART == QN_UART1) { // NOTE!!!!! // Assume UART1 used P2.2 and P3.6 as RTS/CTS. Other case this snippet should be modified. syscon_SetPMCR1WithMask(QN_SYSCON, P22_MASK_PIN_CTRL | P36_MASK_PIN_CTRL, P22_GPIO_18_PIN_CTRL | P36_GPIO_30_PIN_CTRL); gpio_write_pin(GPIO_P22, GPIO_HIGH); gpio_write_pin(GPIO_P36, GPIO_HIGH); } #endif // Wait for 1 bytes duration to guarantee host has not started a tx at this time. // Assume buadrate 115200 delay(100); // Check if data has been received during the waiting time if(uart_uart_GetIntFlag(UART) & UART_MASK_RX_IF) { // Switch RTS/CTS back #if CONFIG_ENABLE_DRIVER_UART0==TRUE if(UART == QN_UART0) { syscon_SetPMCR0WithMask(QN_SYSCON, P02_MASK_PIN_CTRL | P01_MASK_PIN_CTRL, P02_UART0_RTS_PIN_CTRL | P01_UART0_CTS_PIN_CTRL); } #endif #if CONFIG_ENABLE_DRIVER_UART1==TRUE if(UART == QN_UART1) { // NOTE!!!!! // Assume UART1 used P2.2 and P3.6 as RTS/CTS. Other case this snippet should be modified. syscon_SetPMCR1WithMask(QN_SYSCON, P22_MASK_PIN_CTRL | P36_MASK_PIN_CTRL, P22_UART1_RTS_PIN_CTRL | P36_UART1_CTS_PIN_CTRL); } #endif // failed. break; } // success. rt = true; } while(false); // Restore uart interrupt status NVIC->ISER[0] = int_restore; return rt; }