From 06642910f4e1d5c333d0a18388428e1799d230e9 Mon Sep 17 00:00:00 2001 From: Greg Steiert Date: Sun, 3 Jan 2021 18:11:13 +0000 Subject: [PATCH] neopixel driver one byte at a time non-func --- hw/bsp/double_m33_express/board.mk | 4 +- .../double_m33_express/double_m33_express.c | 183 +++++++++++++++--- 2 files changed, 157 insertions(+), 30 deletions(-) diff --git a/hw/bsp/double_m33_express/board.mk b/hw/bsp/double_m33_express/board.mk index 5b297cc3e..df42ad4cc 100644 --- a/hw/bsp/double_m33_express/board.mk +++ b/hw/bsp/double_m33_express/board.mk @@ -23,7 +23,9 @@ SRC_C += \ $(MCU_DIR)/drivers/fsl_clock.c \ $(MCU_DIR)/drivers/fsl_gpio.c \ $(MCU_DIR)/drivers/fsl_power.c \ - $(MCU_DIR)/drivers/fsl_reset.c + $(MCU_DIR)/drivers/fsl_reset.c \ + $(MCU_DIR)/drivers/fsl_usart.c \ + $(MCU_DIR)/drivers/fsl_flexcomm.c INC += \ $(TOP)/$(MCU_DIR)/../../CMSIS/Include \ diff --git a/hw/bsp/double_m33_express/double_m33_express.c b/hw/bsp/double_m33_express/double_m33_express.c index 3d4a8f53d..7992f424c 100644 --- a/hw/bsp/double_m33_express/double_m33_express.c +++ b/hw/bsp/double_m33_express/double_m33_express.c @@ -29,6 +29,7 @@ #include "fsl_gpio.h" #include "fsl_power.h" #include "fsl_iocon.h" +#include "fsl_sctimer.h" //--------------------------------------------------------------------+ // Forward USB interrupt events to TinyUSB IRQ Handler @@ -55,16 +56,128 @@ void USB1_IRQHandler(void) #define BUTTON_PIN 5 #define BUTTON_STATE_ACTIVE 0 +// Number of neopixels +#define NEOPIXEL_NUMBER 2 +#define NEOPIXEL_PORT 0 +#define NEOPIXEL_PIN 27 + +// UART +#define UART_DEV USART0 + // IOCON pin mux #define IOCON_PIO_DIGITAL_EN 0x0100u /*!<@brief Enables digital function */ #define IOCON_PIO_FUNC0 0x00u /*!<@brief Selects pin function 0 */ #define IOCON_PIO_FUNC1 0x01u /*!<@brief Selects pin function 1 */ +#define IOCON_PIO_FUNC4 0x04u /*!<@brief Selects pin function 4 */ #define IOCON_PIO_FUNC7 0x07u /*!<@brief Selects pin function 7 */ #define IOCON_PIO_INV_DI 0x00u /*!<@brief Input function is not inverted */ #define IOCON_PIO_MODE_INACT 0x00u /*!<@brief No addition pin function */ #define IOCON_PIO_OPENDRAIN_DI 0x00u /*!<@brief Open drain is disabled */ #define IOCON_PIO_SLEW_STANDARD 0x00u /*!<@brief Standard mode, output slew rate control is enabled */ +#define IOCON_PIO_DIG_FUNC0_EN (IOCON_PIO_DIGITAL_EN | IOCON_PIO_FUNC0) /*!<@brief Digital pin function 0 enabled */ +#define IOCON_PIO_DIG_FUNC1_EN (IOCON_PIO_DIGITAL_EN | IOCON_PIO_FUNC1) /*!<@brief Digital pin function 1 enabled */ +#define IOCON_PIO_DIG_FUNC4_EN (IOCON_PIO_DIGITAL_EN | IOCON_PIO_FUNC4) /*!<@brief Digital pin function 2 enabled */ +#define IOCON_PIO_DIG_FUNC7_EN (IOCON_PIO_DIGITAL_EN | IOCON_PIO_FUNC7) /*!<@brief Digital pin function 2 enabled */ + +//--------------------------------------------------------------------+ +// Neopixel Driver +//--------------------------------------------------------------------+ +#define NEO_SCT SCT0 +#define NEO_MATCH_PERIOD 0 +#define NEO_MATCH_0 1 +#define NEO_MATCH_1 2 +#define NEO_EVENT_RISE 2 +#define NEO_EVENT_FALL_0 0 +#define NEO_EVENT_FALL_1 1 +#define NEO_EVENT_NEXT 3 +#define NEO_EVENT_START 4 +#define NEO_SCT_OUTPUT 6 +#define NEO_STATE_IDLE 8 + +volatile uint8_t _neopixel_array[3*NEOPIXEL_NUMBER] = {0}; +volatile uint32_t _neopixel_count = 0; + +void neopixel_int_handler(void){ + uint32_t eventFlag = NEO_SCT->EVFLAG; + if ((eventFlag == (1 << NEO_EVENT_NEXT)) && (_neopixel_count < (3*NEOPIXEL_NUMBER))) { + NEO_SCT->EV[NEO_EVENT_FALL_0].STATE = 0xFF & (~_neopixel_array[_neopixel_count]); + _neopixel_count += 1; + } + NEO_SCT->EVFLAG = eventFlag; + NEO_SCT->CTRL &= ~(SCT_CTRL_HALT_L_MASK); +} + +void SCT0_DriverIRQHandler(void){ + neopixel_int_handler(); + SDK_ISR_EXIT_BARRIER; +} + +void neopixel_update(uint32_t pixel, uint32_t color){ + if (pixel < NEOPIXEL_NUMBER) { + uint32_t index = 3*pixel; + _neopixel_array[index++] = color>>8; // green first + _neopixel_array[index++] = color>>16; // red + _neopixel_array[index] = color; // blue + _neopixel_count = 0; + NEO_SCT->EV[NEO_EVENT_FALL_0].STATE = 0xFF & (~_neopixel_array[0]); + NEO_SCT->CTRL &= ~(SCT_CTRL_HALT_L_MASK); + } +} + +void neopixel_init(void) { + CLOCK_EnableClock(kCLOCK_Sct0); + RESET_PeripheralReset(kSCT0_RST_SHIFT_RSTn); + + NEO_SCT->CONFIG = ( + SCT_CONFIG_UNIFY(1) | + SCT_CONFIG_CLKMODE(kSCTIMER_System_ClockMode) | + SCT_CONFIG_NORELOAD_L(1) ); + NEO_SCT->CTRL = ( + SCT_CTRL_HALT_L(1) | + SCT_CTRL_CLRCTR_L(1) ); + + NEO_SCT->MATCH[NEO_MATCH_PERIOD] = 120; + NEO_SCT->MATCH[NEO_MATCH_0] = 30; + NEO_SCT->MATCH[NEO_MATCH_1] = 60; + NEO_SCT->EV[NEO_EVENT_START].STATE = (1 << 24U); + NEO_SCT->EV[NEO_EVENT_START].CTRL = ( + kSCTIMER_OutputLowEvent | SCT_EV_CTRL_IOSEL(NEO_SCT_OUTPUT) | + SCT_EV_CTRL_STATELD(1) | SCT_EV_CTRL_STATEV(7)); + NEO_SCT->EV[NEO_EVENT_RISE].STATE = 0xFFFFFE; + NEO_SCT->EV[NEO_EVENT_RISE].CTRL = ( + kSCTIMER_MatchEventOnly | SCT_EV_CTRL_MATCHSEL(NEO_MATCH_PERIOD) | + SCT_EV_CTRL_STATELD(0) | SCT_EV_CTRL_STATEV(31)); + NEO_SCT->EV[NEO_EVENT_FALL_0].STATE = 0x0; + NEO_SCT->EV[NEO_EVENT_FALL_0].CTRL = ( + kSCTIMER_MatchEventOnly | SCT_EV_CTRL_MATCHSEL(NEO_MATCH_0) | + SCT_EV_CTRL_STATELD(0) | SCT_EV_CTRL_STATEV(31)); + NEO_SCT->EV[NEO_EVENT_FALL_1].STATE = 0xFFFFFF; + NEO_SCT->EV[NEO_EVENT_FALL_1].CTRL = ( + kSCTIMER_MatchEventOnly | SCT_EV_CTRL_MATCHSEL(NEO_MATCH_1) | + SCT_EV_CTRL_STATELD(0) | SCT_EV_CTRL_STATEV(31)); + NEO_SCT->EV[NEO_EVENT_NEXT].STATE = 0x1; + NEO_SCT->EV[NEO_EVENT_NEXT].CTRL = ( + kSCTIMER_MatchEventOnly | SCT_EV_CTRL_MATCHSEL(NEO_MATCH_PERIOD) | + SCT_EV_CTRL_STATELD(1) | SCT_EV_CTRL_STATEV(NEO_STATE_IDLE)); + + NEO_SCT->LIMIT = (1 << NEO_EVENT_START) | (1 << NEO_EVENT_RISE); + NEO_SCT->HALT = (1 << NEO_EVENT_NEXT); + NEO_SCT->START = (1 << NEO_EVENT_START); + + NEO_SCT->OUT[NEO_SCT_OUTPUT].SET = (1 << NEO_EVENT_START) | (1 << NEO_EVENT_RISE); + NEO_SCT->OUT[NEO_SCT_OUTPUT].CLR = (1 << NEO_EVENT_FALL_0) | (1<< NEO_EVENT_FALL_1); + + NEO_SCT->STATE = NEO_STATE_IDLE; + NEO_SCT->OUTPUT = 0x0; + NEO_SCT->RES = SCT_RES_O6RES(0x2); + NEO_SCT->EVEN = (1 << NEO_EVENT_NEXT); + EnableIRQ(SCT0_IRQn); + + neopixel_update(0, 0x404040); +} + + /**************************************************************** name: BOARD_BootClockFROHF96M outputs: @@ -115,40 +228,49 @@ void board_init(void) NVIC_SetPriority(USB0_IRQn, configLIBRARY_MAX_SYSCALL_INTERRUPT_PRIORITY ); #endif - GPIO_PortInit(GPIO, LED_PORT); - GPIO_PortInit(GPIO, BUTTON_PORT); + GPIO_PortInit(GPIO, 0); + GPIO_PortInit(GPIO, 1); // LED - gpio_pin_config_t const led_config = { kGPIO_DigitalOutput, 0}; + /* PORT0 PIN1 configured as PIO0_1 */ + IOCON_PinMuxSet(IOCON, 0U, 1U, IOCON_PIO_DIG_FUNC0_EN); + + gpio_pin_config_t const led_config = { kGPIO_DigitalOutput, 1}; GPIO_PinInit(GPIO, LED_PORT, LED_PIN, &led_config); - board_led_write(true); + + // Neopixel + /* PORT0 PIN27 configured as SCT0_OUT6 */ + IOCON_PinMuxSet(IOCON, 0U, 27U, IOCON_PIO_DIG_FUNC4_EN); + + neopixel_init(); // Button - const uint32_t port1_pin18_config = ( - IOCON_PIO_FUNC0 | /* Pin is configured as PIO1_18 */ - IOCON_PIO_MODE_INACT | /* No addition pin function */ - IOCON_PIO_SLEW_STANDARD | /* Standard mode, output slew rate control is enabled */ - IOCON_PIO_INV_DI | /* Input function is not inverted */ - IOCON_PIO_DIGITAL_EN | /* Enables digital function */ - IOCON_PIO_OPENDRAIN_DI /* Open drain is disabled */ - ); - /* PORT1 PIN18 (coords: 64) is configured as PIO1_18 */ - IOCON_PinMuxSet(IOCON, 1U, 18U, port1_pin18_config); + /* PORT0 PIN5 configured as PIO0_5 */ + IOCON_PinMuxSet(IOCON, 0U, 5U, IOCON_PIO_DIG_FUNC0_EN); gpio_pin_config_t const button_config = { kGPIO_DigitalInput, 0}; GPIO_PinInit(GPIO, BUTTON_PORT, BUTTON_PIN, &button_config); + // UART + /* PORT0 PIN29 (coords: 92) is configured as FC0_RXD_SDA_MOSI_DATA */ + IOCON_PinMuxSet(IOCON, 0U, 29U, IOCON_PIO_DIG_FUNC1_EN); + /* PORT0 PIN30 (coords: 94) is configured as FC0_TXD_SCL_MISO_WS */ + IOCON_PinMuxSet(IOCON, 0U, 30U, IOCON_PIO_DIG_FUNC1_EN); + +#if defined(UART_DEV) && CFG_TUSB_DEBUG + // Enable UART when debug log is on + CLOCK_AttachClk(kFRO12M_to_FLEXCOMM0); + usart_config_t uart_config; + USART_GetDefaultConfig(&uart_config); + uart_config.baudRate_Bps = BOARD_UART_BAUDRATE; + uart_config.enableTx = true; + uart_config.enableRx = true; + USART_Init(UART_DEV, &uart_config, 12000000); +#endif + // USB VBUS - const uint32_t port0_pin22_config = ( - IOCON_PIO_FUNC7 | /* Pin is configured as USB0_VBUS */ - IOCON_PIO_MODE_INACT | /* No addition pin function */ - IOCON_PIO_SLEW_STANDARD | /* Standard mode, output slew rate control is enabled */ - IOCON_PIO_INV_DI | /* Input function is not inverted */ - IOCON_PIO_DIGITAL_EN | /* Enables digital function */ - IOCON_PIO_OPENDRAIN_DI /* Open drain is disabled */ - ); - /* PORT0 PIN22 (coords: 78) is configured as USB0_VBUS */ - IOCON_PinMuxSet(IOCON, 0U, 22U, port0_pin22_config); + /* PORT0 PIN22 configured as USB0_VBUS */ + IOCON_PinMuxSet(IOCON, 0U, 22U, IOCON_PIO_DIG_FUNC7_EN); // USB Controller POWER_DisablePD(kPDRUNCFG_PD_USB0_PHY); /*Turn on USB0 Phy */ @@ -163,27 +285,30 @@ void board_init(void) RESET_PeripheralReset(kUSB1_RST_SHIFT_RSTn); RESET_PeripheralReset(kUSB1RAM_RST_SHIFT_RSTn); -#if (defined USB_DEVICE_CONFIG_LPCIP3511HS) && (USB_DEVICE_CONFIG_LPCIP3511HS) +#if (defined CFG_TUSB_RHPORT1_MODE) && (CFG_TUSB_RHPORT1_MODE & OPT_MODE_DEVICE) CLOCK_EnableClock(kCLOCK_Usbh1); /* Put PHY powerdown under software control */ - *((uint32_t *)(USBHSH_BASE + 0x50)) = USBHSH_PORTMODE_SW_PDCOM_MASK; + USBHSH->PORTMODE = USBHSH_PORTMODE_SW_PDCOM_MASK; /* According to reference mannual, device mode setting has to be set by access usb host register */ - *((uint32_t *)(USBHSH_BASE + 0x50)) |= USBHSH_PORTMODE_DEV_ENABLE_MASK; + USBHSH->PORTMODE |= USBHSH_PORTMODE_DEV_ENABLE_MASK; /* enable usb1 host clock */ CLOCK_DisableClock(kCLOCK_Usbh1); #endif -#if 1 || (defined USB_DEVICE_CONFIG_LPCIP3511FS) && (USB_DEVICE_CONFIG_LPCIP3511FS) +#if (defined CFG_TUSB_RHPORT0_MODE) && (CFG_TUSB_RHPORT0_MODE & OPT_MODE_DEVICE) + // Enable USB Clock Adjustments to trim the FRO for the full speed controller + ANACTRL->FRO192M_CTRL |= ANACTRL_FRO192M_CTRL_USBCLKADJ_MASK; CLOCK_SetClkDiv(kCLOCK_DivUsb0Clk, 1, false); CLOCK_AttachClk(kFRO_HF_to_USB0_CLK); /* enable usb0 host clock */ CLOCK_EnableClock(kCLOCK_Usbhsl0); /*According to reference mannual, device mode setting has to be set by access usb host register */ - *((uint32_t *)(USBFSH_BASE + 0x5C)) |= USBFSH_PORTMODE_DEV_ENABLE_MASK; + USBFSH->PORTMODE |= USBFSH_PORTMODE_DEV_ENABLE_MASK; /* disable usb0 host clock */ CLOCK_DisableClock(kCLOCK_Usbhsl0); CLOCK_EnableUsbfs0DeviceClock(kCLOCK_UsbfsSrcFro, CLOCK_GetFreq(kCLOCK_FroHf)); /* enable USB Device clock */ #endif + } //--------------------------------------------------------------------+