diff options
Diffstat (limited to 'tinyusb/hw/bsp/ngx4330/ngx4330.c')
| -rwxr-xr-x | tinyusb/hw/bsp/ngx4330/ngx4330.c | 264 |
1 files changed, 264 insertions, 0 deletions
diff --git a/tinyusb/hw/bsp/ngx4330/ngx4330.c b/tinyusb/hw/bsp/ngx4330/ngx4330.c new file mode 100755 index 00000000..b63f9b89 --- /dev/null +++ b/tinyusb/hw/bsp/ngx4330/ngx4330.c @@ -0,0 +1,264 @@ +/* + * The MIT License (MIT) + * + * Copyright (c) 2019 Ha Thach (tinyusb.org) + * + * Permission is hereby granted, free of charge, to any person obtaining a copy + * of this software and associated documentation files (the "Software"), to deal + * in the Software without restriction, including without limitation the rights + * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell + * copies of the Software, and to permit persons to whom the Software is + * furnished to do so, subject to the following conditions: + * + * The above copyright notice and this permission notice shall be included in + * all copies or substantial portions of the Software. + * + * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR + * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, + * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE + * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER + * 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. + * + * This file is part of the TinyUSB stack. + */ + +#include "chip.h" +#include "../board.h" + +#define LED_PORT 1 +#define LED_PIN 12 +#define LED_STATE_ON 0 + +#define BUTTON_PORT 0 +#define BUTTON_PIN 7 +#define BUTTON_STATE_ACTIVE 0 + +#define BOARD_UART_PORT LPC_USART0 +#define BOARD_UART_PIN_PORT 0x0f +#define BOARD_UART_PIN_TX 10 // PF.10 : UART0_TXD +#define BOARD_UART_PIN_RX 11 // PF.11 : UART0_RXD + +/*------------------------------------------------------------------*/ +/* BOARD API + *------------------------------------------------------------------*/ + +/* System configuration variables used by chip driver */ +const uint32_t OscRateIn = 12000000; +const uint32_t ExtRateIn = 0; + +static const PINMUX_GRP_T pinmuxing[] = +{ + // LED P2.12 as GPIO 1.12 + {2, 11, (SCU_MODE_INBUFF_EN | SCU_MODE_PULLDOWN | SCU_MODE_FUNC0)}, + + // Button P2.7 as GPIO 0.7 + {2, 7, (SCU_MODE_PULLUP | SCU_MODE_INBUFF_EN | SCU_MODE_ZIF_DIS | SCU_MODE_FUNC0)}, + + // USB + {2, 6, (SCU_MODE_PULLUP | SCU_MODE_INBUFF_EN | SCU_MODE_FUNC4)}, // USB1_PWR_EN + {2, 5, (SCU_MODE_INACT | SCU_MODE_INBUFF_EN | SCU_MODE_ZIF_DIS | SCU_MODE_FUNC2)}, // USB1_VBUS + {1, 7, (SCU_MODE_PULLUP | SCU_MODE_INBUFF_EN | SCU_MODE_FUNC4)}, // USB0_PWRN_EN + + // SPIFI + {3, 3, (SCU_PINIO_FAST | SCU_MODE_FUNC3)}, /* SPIFI CLK */ + {3, 4, (SCU_PINIO_FAST | SCU_MODE_FUNC3)}, /* SPIFI D3 */ + {3, 5, (SCU_PINIO_FAST | SCU_MODE_FUNC3)}, /* SPIFI D2 */ + {3, 6, (SCU_PINIO_FAST | SCU_MODE_FUNC3)}, /* SPIFI D1 */ + {3, 7, (SCU_PINIO_FAST | SCU_MODE_FUNC3)}, /* SPIFI D0 */ + {3, 8, (SCU_PINIO_FAST | SCU_MODE_FUNC3)} /* SPIFI CS/SSEL */ +}; + +// Invoked by startup code +void SystemInit(void) +{ +#ifdef __USE_LPCOPEN + extern void (* const g_pfnVectors[])(void); + unsigned int *pSCB_VTOR = (unsigned int *) 0xE000ED08; + *pSCB_VTOR = (unsigned int) g_pfnVectors; + +#if __FPU_USED == 1 + fpuInit(); +#endif +#endif // __USE_LPCOPEN + + // Set up pinmux + Chip_SCU_SetPinMuxing(pinmuxing, sizeof(pinmuxing) / sizeof(PINMUX_GRP_T)); + + //------------- Set up clock -------------// + Chip_Clock_SetBaseClock(CLK_BASE_SPIFI, CLKIN_IRC, true, false); // change SPIFI to IRC during clock programming + LPC_SPIFI->CTRL |= SPIFI_CTRL_FBCLK(1); // and set FBCLK in SPIFI controller + + Chip_SetupCoreClock(CLKIN_CRYSTAL, MAX_CLOCK_FREQ, true); + + /* Reset and enable 32Khz oscillator */ + LPC_CREG->CREG0 &= ~((1 << 3) | (1 << 2)); + LPC_CREG->CREG0 |= (1 << 1) | (1 << 0); + + /* Setup a divider E for main PLL clock switch SPIFI clock to that divider. + Divide rate is based on CPU speed and speed of SPI FLASH part. */ +#if (MAX_CLOCK_FREQ > 180000000) + Chip_Clock_SetDivider(CLK_IDIV_E, CLKIN_MAINPLL, 5); +#else + Chip_Clock_SetDivider(CLK_IDIV_E, CLKIN_MAINPLL, 4); +#endif + Chip_Clock_SetBaseClock(CLK_BASE_SPIFI, CLKIN_IDIVE, true, false); + + /* Setup system base clocks and initial states. This won't enable and + disable individual clocks, but sets up the base clock sources for + each individual peripheral clock. */ + Chip_Clock_SetBaseClock(CLK_BASE_USB1, CLKIN_IDIVD, true, true); +} + +void board_init(void) +{ + SystemCoreClockUpdate(); + +#if CFG_TUSB_OS == OPT_OS_NONE + // 1ms tick timer + SysTick_Config(SystemCoreClock / 1000); +#elif CFG_TUSB_OS == OPT_OS_FREERTOS + // If freeRTOS is used, IRQ priority is limit by max syscall ( smaller is higher ) + //NVIC_SetPriority(USB0_IRQn, configLIBRARY_MAX_SYSCALL_INTERRUPT_PRIORITY ); +#endif + + Chip_GPIO_Init(LPC_GPIO_PORT); + + // LED + Chip_GPIO_SetPinDIROutput(LPC_GPIO_PORT, LED_PORT, LED_PIN); + + // Button + Chip_GPIO_SetPinDIRInput(LPC_GPIO_PORT, BUTTON_PORT, BUTTON_PIN); + +#if 0 + //------------- UART -------------// + scu_pinmux(BOARD_UART_PIN_PORT, BOARD_UART_PIN_TX, MD_PDN, FUNC1); + scu_pinmux(BOARD_UART_PIN_PORT, BOARD_UART_PIN_RX, MD_PLN | MD_EZI | MD_ZI, FUNC1); + + UART_CFG_Type UARTConfigStruct; + UART_ConfigStructInit(&UARTConfigStruct); + UARTConfigStruct.Baud_rate = CFG_BOARD_UART_BAUDRATE; + UARTConfigStruct.Clock_Speed = 0; + + UART_Init(BOARD_UART_PORT, &UARTConfigStruct); + UART_TxCmd(BOARD_UART_PORT, ENABLE); // Enable UART Transmit +#endif + + //------------- USB -------------// + enum { + USBMODE_DEVICE = 2, + USBMODE_HOST = 3 + }; + + enum { + USBMODE_VBUS_LOW = 0, + USBMODE_VBUS_HIGH = 1 + }; + + /* USB0 + * For USB Device operation; insert jumpers in position 1-2 in JP17/JP18/JP19. GPIO28 controls USB + * connect functionality and LED32 lights when the USB Device is connected. SJ4 has pads 1-2 shorted + * by default. LED33 is controlled by GPIO27 and signals USB-up state. GPIO54 is used for VBUS + * sensing. + * For USB Host operation; insert jumpers in position 2-3 in JP17/JP18/JP19. USB Host power is + * controlled via distribution switch U20 (found in schematic page 11). Signal GPIO26 is active low and + * enables +5V on VBUS2. LED35 light whenever +5V is present on VBUS2. GPIO55 is connected to + * status feedback from the distribution switch. GPIO54 is used for VBUS sensing. 15Kohm pull-down + * resistors are always active + */ +#if CFG_TUSB_RHPORT0_MODE + Chip_USB0_Init(); +#endif + + /* USB1 + * When USB channel #1 is used as USB Host, 15Kohm pull-down resistors are needed on the USB data + * signals. These are activated inside the USB OTG chip (U31), and this has to be done via the I2C + * interface of GPIO52/GPIO53. + * J20 is the connector to use when USB Host is used. In order to provide +5V to the external USB + * device connected to this connector (J20), channel A of U20 must be enabled. It is enabled by default + * since SJ5 is normally connected between pin 1-2. LED34 lights green when +5V is available on J20. + * JP15 shall not be inserted. JP16 has no effect + * + * When USB channel #1 is used as USB Device, a 1.5Kohm pull-up resistor is needed on the USB DP + * data signal. There are two methods to create this. JP15 is inserted and the pull-up resistor is always + * enabled. Alternatively, the pull-up resistor is activated inside the USB OTG chip (U31), and this has to + * be done via the I2C interface of GPIO52/GPIO53. In the latter case, JP15 shall not be inserted. + * J19 is the connector to use when USB Device is used. Normally it should be a USB-B connector for + * creating a USB Device interface, but the mini-AB connector can also be used in this case. The status + * of VBUS can be read via U31. + * JP16 shall not be inserted. + */ +#if CFG_TUSB_RHPORT1_MODE + Chip_USB1_Init(); + +// Chip_GPIO_SetPinDIROutput(LPC_GPIO_PORT, 5, 6); /* GPIO5[6] = USB1_PWR_EN */ +// Chip_GPIO_SetPinState(LPC_GPIO_PORT, 5, 6, true); /* GPIO5[6] output high */ +#endif +} + +//--------------------------------------------------------------------+ +// USB Interrupt Handler +//--------------------------------------------------------------------+ +void USB0_IRQHandler(void) +{ + #if CFG_TUSB_RHPORT0_MODE & OPT_MODE_HOST + tuh_int_handler(0); + #endif + + #if CFG_TUSB_RHPORT0_MODE & OPT_MODE_DEVICE + tud_int_handler(0); + #endif +} + +void USB1_IRQHandler(void) +{ + #if CFG_TUSB_RHPORT1_MODE & OPT_MODE_HOST + tuh_int_handler(1); + #endif + + #if CFG_TUSB_RHPORT1_MODE & OPT_MODE_DEVICE + tud_int_handler(1); + #endif +} + +//--------------------------------------------------------------------+ +// Board porting API +//--------------------------------------------------------------------+ + +void board_led_write(bool state) +{ + Chip_GPIO_SetPinState(LPC_GPIO_PORT, LED_PORT, LED_PIN, state ? LED_STATE_ON : (1-LED_STATE_ON)); +} + +uint32_t board_button_read(void) +{ + return BUTTON_STATE_ACTIVE == Chip_GPIO_GetPinState(LPC_GPIO_PORT, BUTTON_PORT, BUTTON_PIN); +} + +int board_uart_read(uint8_t* buf, int len) +{ + //return UART_ReceiveByte(BOARD_UART_PORT); + (void) buf; (void) len; + return 0; +} + +int board_uart_write(void const * buf, int len) +{ + //UART_Send(BOARD_UART_PORT, &c, 1, BLOCKING); + (void) buf; (void) len; + return 0; +} + +#if CFG_TUSB_OS == OPT_OS_NONE +volatile uint32_t system_ticks = 0; +void SysTick_Handler (void) +{ + system_ticks++; +} + +uint32_t board_millis(void) +{ + return system_ticks; +} +#endif |