- This topic has 4 个回复, 2 个参与人, and was last updated 4 years, 10 months 前 by
Howard.
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十月 24, 2019 - 2:53 下午 #1936
hyq666
参与者\rv32m1_vega\driver_examples\gpio\input_interrupt 仿照这么这个例子改为其他按键,例如SW3,一直不行,什么原因?
十月 24, 2019 - 2:56 下午 #1937hyq666
参与者void BOARD_InitPins(void) {
CLOCK_EnableClock(kCLOCK_PortA);
CLOCK_EnableClock(kCLOCK_PortC); /* Clock Gate Control: 0x01u */
CLOCK_EnableClock(kCLOCK_PortE); /* Clock Gate Control: 0x01u */const port_pin_config_t porte12_pinL12_config = {
kPORT_PullDisable, /* Internal pull-up/down resistor is disabled */
kPORT_FastSlewRate, /* Fast slew rate is configured */
kPORT_PassiveFilterDisable, /* Passive filter is disabled */
kPORT_OpenDrainDisable, /* Open drain is disabled */
kPORT_LowDriveStrength, /* Low drive strength is configured */
kPORT_MuxAsGpio, /* Pin is configured as PTE12 */
kPORT_UnlockRegister /* Pin Control Register fields [15:0] are not locked */};
PORT_SetPinConfig(PORTE, PIN12_IDX, &porte12_pinL12_config); /* PORTE12 (pin L12) is configured as PTE12 */
PORT_SetPinMux(PORTA, PIN24_IDX, kPORT_MuxAsGpio); /* PORTA24 (pin D6) is configured as PTA24 */
PORT_SetPinMux(PORTC, PIN7_IDX, kPORT_MuxAlt3); /* PORTC7 (pin N2) is configured as LPUART0_RX */
PORT_SetPinMux(PORTC, PIN8_IDX, kPORT_MuxAlt3); /* PORTC8 (pin P3) is configured as LPUART0_TX */
}#define BOARD_SW5_GPIO GPIOE
#define BOARD_SW5_PORT PORTE
#define BOARD_SW5_GPIO_PIN 12U
#define BOARD_SW5_IRQ PORTE_IRQn
#define BOARD_SW5_IRQ_HANDLER PORTE_IRQHandler
#define BOARD_SW5_NAME “SW5”/* Board led color mapping */
#define BOARD_LED_RED_GPIO GPIOA
#define BOARD_LED_RED_GPIO_PIN 24U/*! @brief The TPM channel used for board */
#define BOARD_TPM_CHANNEL 0U十月 24, 2019 - 2:57 下午 #1938hyq666
参与者只能使用例子中SW2吗?
十月 24, 2019 - 3:30 下午 #1939hyq666
参与者// LSU error
jal x0, LSU_Handler 程序跳到这里不走了是什么错误????十月 25, 2019 - 2:33 下午 #1940Howard
参与者- GPIOE是 Rapid/Fast GPIO,还需要打开Rapid/Fast GPIO 的clock,所以在BOARD_InitPins()中要enable rgpio clock
void BOARD_InitPins(void) {
CLOCK_EnableClock(kCLOCK_PortA); /* Clock Gate Control: 0x01u */
CLOCK_EnableClock(kCLOCK_PortC); /* Clock Gate Control: 0x01u */
CLOCK_EnableClock(kCLOCK_PortE); /* Clock Gate Control: 0x01u */
CLOCK_EnableClock(kCLOCK_Rgpio1);……
}
- 由于RISC-V中断只支持32个外部硬件中断信号,所以更多的中断信号是通过INTMUX模块来复用的。所以要初始化INTMUX这个模块。所以要在程序中添加INTMUX 驱动,即加入rv32m1_sdk_riscv\devices\RV32M1\drivers\fsl_intmux.c文件,然后在gpio_input_interrupt.c文件中 #include “fsl_intmux.h”,并且在初始化GPIOE中断加入红色代码行
/* Init input switch GPIO. */
INTMUX_Init(INTMUX0);
INTMUX_EnableInterrupt(INTMUX0, 0, PORTE_IRQn);PORT_SetPinInterruptConfig(BOARD_SW3_PORT, BOARD_SW3_GPIO_PIN, kPORT_InterruptFallingEdge);
EnableIRQ(BOARD_SW3_IRQ);
GPIO_PinInit(BOARD_SW3_GPIO, BOARD_SW3_GPIO_PIN, &sw_config);- 其它修改对照SW2做对应修改
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