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【转载】嵌入式开发（BL618芯片）定时器中断建构

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查看924 | 回复6 | 2023-11-29 20:08:39 | 显示全部楼层 |阅读模式

版权声明：本文为博主原创文章，遵循 CC 4.0 BY-SA 版权协议，转载请附上原文出处链接和本声明。 本文链接：https://blog.csdn.net/weixin_64069585/article/details/130900203 ———————————————— 版权声明：本文为CSDN博主「maeve1228」的原创文章，遵循CC 4.0 BY-SA版权协议，转载请附上原文出处链接及本声明。 原文链接：https://blog.csdn.net/weixin_64069585/article/details/130900203

嵌入式开发（BL618芯片）定时器中断建构

概要

选择的开发环境为：vscode

开发板为：BL618

串口调试助手 整体架构流程

vscode程序开发编译步骤：

使用make CHIP=bl616
使用make flash COMX=comX(X是你开发板链接的端口，打开设备管理器查看即可）
使用riscv64-unknown-elf-gdb进行命令行下的调试，进入gdb进行详细配置

技术细节

链接好开发板之后进入vscode，编写一个c程序，例如

#include "bflb_mtimer.h"
#include "board.h"

#define DBG_TAG "MAIN"
#include "log.h"

int main(void)
{
    board_init();

    while (1) {
        LOG_F("hello world fatal\r\n");
        LOG_E("hello world error\r\n");
        LOG_W("hello world warning\r\n");
        LOG_I("hello world information\r\n");
        LOG_D("hello world debug\r\n");
        LOG_T("hello world trace\r\n");
        LOG_RF("hello world fatal raw\r\n");
        LOG_RE("hello world error raw\r\n");
        LOG_RW("hello world warning raw\r\n");
        LOG_RI("hello world information raw\r\n");
        LOG_RD("hello world debug raw\r\n");
        LOG_RT("hello world trace raw\r\n");
        bflb_mtimer_delay_ms(1000);
    }
}

然后将文件目录定位到当前目录，在vscode里，可以直接用powershell或者可以打开终端来进行以下操作：

make CHIP=bl616
使用make flash COMX=com5（我的端口号为5）
接下来打开串口调试助手，确认好端口等，这里有一点很重要的是：波特率的设定，必须设置为2000000（否则会出现乱码，别问我怎么知道的呜呜呜）

然后确定好之后点击开发板上的RST复位键，就输出内容了 902a95cd247743ada02174e14f30d074.png

在powershell里面进行命令编写的时候，我们也可以换个写法：

  1. make CHIP=bl618 BOARD=bl618g0
  2. make flash COMX=com5

同样的，打开串口调试器，你依旧可以得到以上一样的结果

8bd7327542464e03912324429d6812b3.png

开发板设备代码详细信息

#include "bflb_core.h"
#include "bl616_memorymap.h"
#include "bl616_irq.h"

#define DMA_CHANNEL_OFFSET 0x100

struct bflb_device_s bl616_device_table[] = {
    { .name = "adc",
      .reg_base = AON_BASE,
      .irq_num = BL616_IRQ_GPADC_DMA,
      .idx = 0,
      .sub_idx = 0,
      .dev_type = BFLB_DEVICE_TYPE_ADC,
      .user_data = NULL },
    { .name = "dac",
      .reg_base = GLB_BASE,
      .irq_num = 0xff,
      .idx = 0,
      .sub_idx = 0,
      .dev_type = BFLB_DEVICE_TYPE_DAC,
      .user_data = NULL },
    { .name = "ef_ctrl",
      .reg_base = EF_CTRL_BASE,
      .irq_num = 0xff,
      .idx = 0,
      .sub_idx = 0,
      .dev_type = BFLB_DEVICE_TYPE_EF_CTRL,
      .user_data = NULL },
    { .name = "gpio",//名字
      .reg_base = GLB_BASE,//寄存器基地址
      .irq_num = BL616_IRQ_GPIO_INT0,//中端向量号
      .idx = 0,//索引
      .sub_idx = 0,
      .dev_type = BFLB_DEVICE_TYPE_GPIO,//设备类型
      .user_data = NULL },//通过这些东西可以找到设备
    { .name = "uart0",
      .reg_base = UART0_BASE,
      .irq_num = BL616_IRQ_UART0,
      .idx = 0,
      .dev_type = BFLB_DEVICE_TYPE_UART,
      .user_data = NULL },
    { .name = "uart1",
      .reg_base = UART1_BASE,
      .irq_num = BL616_IRQ_UART1,
      .idx = 1,
      .dev_type = BFLB_DEVICE_TYPE_UART,
      .user_data = NULL },
    { .name = "spi0",
      .reg_base = SPI_BASE,
      .irq_num = BL616_IRQ_SPI0,
      .idx = 0,
      .dev_type = BFLB_DEVICE_TYPE_SPI,
      .user_data = NULL },
    { .name = "pwm_v2_0",
      .reg_base = PWM_BASE,
      .irq_num = BL616_IRQ_PWM,
      .idx = 0,
      .sub_idx = 0,
      .dev_type = BFLB_DEVICE_TYPE_PWM,
      .user_data = NULL },
    { .name = "dma0_ch0",
      .reg_base = DMA_BASE + 1 * DMA_CHANNEL_OFFSET,
      .irq_num = BL616_IRQ_DMA0_ALL,
      .idx = 0,
      .sub_idx = 0,
      .dev_type = BFLB_DEVICE_TYPE_DMA,
      .user_data = NULL },
    { .name = "dma0_ch1",
      .reg_base = DMA_BASE + 2 * DMA_CHANNEL_OFFSET,
      .irq_num = BL616_IRQ_DMA0_ALL,
      .idx = 0,
      .sub_idx = 1,
      .dev_type = BFLB_DEVICE_TYPE_DMA,
      .user_data = NULL },
    { .name = "dma0_ch2",
      .reg_base = DMA_BASE + 3 * DMA_CHANNEL_OFFSET,
      .irq_num = BL616_IRQ_DMA0_ALL,
      .idx = 0,
      .sub_idx = 2,
      .dev_type = BFLB_DEVICE_TYPE_DMA,
      .user_data = NULL },
    { .name = "dma0_ch3",
      .reg_base = DMA_BASE + 4 * DMA_CHANNEL_OFFSET,
      .irq_num = BL616_IRQ_DMA0_ALL,
      .idx = 0,
      .sub_idx = 3,
      .dev_type = BFLB_DEVICE_TYPE_DMA,
      .user_data = NULL },
    { .name = "dma0_ch4",
      .reg_base = DMA_BASE + 5 * DMA_CHANNEL_OFFSET,
      .irq_num = BL616_IRQ_DMA0_ALL,
      .idx = 0,
      .sub_idx = 4,
      .dev_type = BFLB_DEVICE_TYPE_DMA,
      .user_data = NULL },
    { .name = "dma0_ch5",
      .reg_base = DMA_BASE + 6 * DMA_CHANNEL_OFFSET,
      .irq_num = BL616_IRQ_DMA0_ALL,
      .idx = 0,
      .sub_idx = 5,
      .dev_type = BFLB_DEVICE_TYPE_DMA,
      .user_data = NULL },
    { .name = "dma0_ch6",
      .reg_base = DMA_BASE + 7 * DMA_CHANNEL_OFFSET,
      .irq_num = BL616_IRQ_DMA0_ALL,
      .idx = 0,
      .sub_idx = 6,
      .dev_type = BFLB_DEVICE_TYPE_DMA,
      .user_data = NULL },
    { .name = "dma0_ch7",
      .reg_base = DMA_BASE + 8 * DMA_CHANNEL_OFFSET,
      .irq_num = BL616_IRQ_DMA0_ALL,
      .idx = 0,
      .sub_idx = 7,
      .dev_type = BFLB_DEVICE_TYPE_DMA,
      .user_data = NULL },
    { .name = "i2c0",
      .reg_base = I2C0_BASE,
      .irq_num = BL616_IRQ_I2C0,
      .idx = 0,
      .sub_idx = 0,
      .dev_type = BFLB_DEVICE_TYPE_I2C,
      .user_data = NULL },
    { .name = "i2c1",
      .reg_base = I2C1_BASE,
      .irq_num = BL616_IRQ_I2C1,
      .idx = 1,
      .sub_idx = 0,
      .dev_type = BFLB_DEVICE_TYPE_I2C,
      .user_data = NULL },
    { .name = "i2s0",
      .reg_base = I2S_BASE,
      .irq_num = BL616_IRQ_I2S,
      .idx = 0,
      .sub_idx = 0,
      .dev_type = BFLB_DEVICE_TYPE_I2S,
      .user_data = NULL },
    { .name = "timer0",
      .reg_base = TIMER_BASE,
      .irq_num = BL616_IRQ_TIMER0,
      .idx = 0,
      .sub_idx = 0,
      .dev_type = BFLB_DEVICE_TYPE_TIMER,
      .user_data = NULL },
    { .name = "timer1",
      .reg_base = TIMER_BASE,
      .irq_num = BL616_IRQ_TIMER1,
      .idx = 1,
      .sub_idx = 0,
      .dev_type = BFLB_DEVICE_TYPE_TIMER,
      .user_data = NULL },
    { .name = "rtc",
      .reg_base = HBN_BASE,
      .irq_num = BL616_IRQ_HBN_OUT0,
      .idx = 0,
      .sub_idx = 0,
      .dev_type = BFLB_DEVICE_TYPE_RTC,
      .user_data = NULL },
    { .name = "aes",
      .reg_base = SEC_ENG_BASE,
      .irq_num = 0xff,
      .idx = 0,
      .sub_idx = 0,
      .dev_type = BFLB_DEVICE_TYPE_AES,
      .user_data = NULL },
    { .name = "sha",
      .reg_base = SEC_ENG_BASE,
      .irq_num = 0xff,
      .idx = 0,
      .sub_idx = 0,
      .dev_type = BFLB_DEVICE_TYPE_SHA,
      .user_data = NULL },
    { .name = "trng",
      .reg_base = SEC_ENG_BASE,
      .irq_num = 0xff,
      .idx = 0,
      .sub_idx = 0,
      .dev_type = BFLB_DEVICE_TYPE_TRNG,
      .user_data = NULL },
    { .name = "pka",
      .reg_base = SEC_ENG_BASE,
      .irq_num = 0xff,
      .idx = 0,
      .sub_idx = 0,
      .dev_type = BFLB_DEVICE_TYPE_PKA,
      .user_data = NULL },
    { .name = "emac0",
      .reg_base = EMAC_BASE,
      .irq_num = BL616_IRQ_EMAC,
      .idx = 0,
      .sub_idx = 0,
      .dev_type = BFLB_DEVICE_TYPE_ETH,
      .user_data = NULL },
    { .name = "watchdog",
      .reg_base = TIMER_BASE,
      .irq_num = BL616_IRQ_WDG,
      .idx = 0,
      .sub_idx = 0,
      .dev_type = BFLB_DEVICE_TYPE_TIMER,
      .user_data = NULL },
    { .name = "cks",
      .reg_base = CKS_BASE,
      .irq_num = 0,
      .idx = 0,
      .sub_idx = 0,
      .dev_type = BFLB_DEVICE_TYPE_CKS,
      .user_data = NULL },
    { .name = "mjpeg",
      .reg_base = MJPEG_BASE,
      .irq_num = BL616_IRQ_MJPEG,
      .idx = 0,
      .sub_idx = 0,
      .dev_type = BFLB_DEVICE_TYPE_MJPEG,
      .user_data = NULL },
    { .name = "irrx",
      .reg_base = IR_BASE,
      .irq_num = BL616_IRQ_IRRX,
      .idx = 0,
      .sub_idx = 0,
      .dev_type = BFLB_DEVICE_TYPE_IR,
      .user_data = NULL },
    { .name = "cam0",
      .reg_base = DVP2AXI0_BASE,
      .irq_num = BL616_IRQ_DVP2BUS_INT0,
      .idx = 0,
      .sub_idx = 0,
      .dev_type = BFLB_DEVICE_TYPE_CAMERA,
      .user_data = NULL },
    { .name = "cam1",
      .reg_base = DVP2AXI1_BASE,
      .irq_num = BL616_IRQ_DVP2BUS_INT1,
      .idx = 0,
      .sub_idx = 0,
      .dev_type = BFLB_DEVICE_TYPE_CAMERA,
      .user_data = NULL },
    { .name = "auadc",
      .reg_base = AUADC_BASE,
      .irq_num = BL616_IRQ_AUADC,
      .idx = 0,
      .sub_idx = 0,
      .dev_type = BFLB_DEVICE_TYPE_AUDIOADC,
      .user_data = NULL },
    { .name = "audac",
      .reg_base = AUDAC_BASE,
      .irq_num = BL616_IRQ_AUDAC,
      .idx = 0,
      .sub_idx = 0,
      .dev_type = BFLB_DEVICE_TYPE_AUDIODAC,
      .user_data = NULL },
    { .name = "sdio2",
      .reg_base = SDU_BASE,
      .irq_num = BL616_IRQ_SDIO,
      .idx = 0,
      .sub_idx = 0,
      .dev_type = BFLB_DEVICE_TYPE_SDIO2,
      .user_data = NULL },
    { .name = "dbi",
      .reg_base = DBI_BASE,
      .irq_num = BL616_IRQ_DBI,
      .idx = 0,
      .sub_idx = 0,
      .dev_type = BFLB_DEVICE_TYPE_DBI,
      .user_data = NULL },
    { .name = "plfm_dma_ch0",
      .reg_base = PLFM_DMA_BASE,
      .irq_num = 0,
      .idx = 0,
      .sub_idx = 0,
      .dev_type = BFLB_DEVICE_TYPE_PLFMDMA,
      .user_data = NULL },
    { .name = "plfm_dma_ch1",
      .reg_base = PLFM_DMA_BASE,
      .irq_num = 0,
      .idx = 1,
      .sub_idx = 0,
      .dev_type = BFLB_DEVICE_TYPE_PLFMDMA,
      .user_data = NULL },
    { .name = "plfm_dma_ch2",
      .reg_base = PLFM_DMA_BASE,
      .irq_num = 0,
      .idx = 2,
      .sub_idx = 0,
      .dev_type = BFLB_DEVICE_TYPE_PLFMDMA,
      .user_data = NULL },  
    { .name = "plfm_dma_ch3",
      .reg_base = PLFM_DMA_BASE,
      .irq_num = 0,
      .idx = 3,
      .sub_idx = 0,
      .dev_type = BFLB_DEVICE_TYPE_PLFMDMA,
      .user_data = NULL },
    { .name = "plfm_dma_ch4",
      .reg_base = PLFM_DMA_BASE,
      .irq_num = 0,
      .idx = 4,
      .sub_idx = 0,
      .dev_type = BFLB_DEVICE_TYPE_PLFMDMA,
      .user_data = NULL },
};

struct bflb_device_s *bflb_device_get_by_name(const char *name)
{
    for (uint8_t i = 0; i < sizeof(bl616_device_table) / sizeof(bl616_device_table[0]); i++) {
        if (strcmp(bl616_device_table[i].name, name) == 0) {
            return &bl616_device_table[i];
        }
    }
    return NULL;
}

struct bflb_device_s *bflb_device_get_by_id(uint8_t type, uint8_t idx)
{
    for (uint8_t i = 0; i < sizeof(bl616_device_table) / sizeof(bl616_device_table[0]); i++) {
        if ((bl616_device_table[i].dev_type == type) && (bl616_device_table[i].idx = idx)) {
            return &bl616_device_table[i];
        }
    }
    return NULL;
}

void bflb_device_set_userdata(struct bflb_device_s *device, void *user_data)
{
    device->user_data = user_data;
}

其中，我们可以根据每一块的基本数据内容来对设备进行访问，例如：

fcbc93af6c674d22b1eb34c7cd6c6504.png

博流计时器

博流618内部有两个定时器，分别为定时器1和定时器0，每个定时器里会有三个比较器，每个比较器的值到达的时候就会产生硬件中断，那么我们把响应的中断来修改相应的GPIO的输出，由此可将两个样例结合。

首先完成gpio的配置：

3bff0849e61e436f818295123e287ea4.png

7d9318434a444046ae0670f3f97089e6.png

6fb531280dae44b0b3be06fd17848cf5.png

3ef91c49ab944e76be03254d570f441e.png

计时器和比较器对gpio的代码：

#include "bflb_mtimer.h"
#include "bflb_timer.h"
#include "board.h"

#define TEST_TIMER_COMP_ID TIMER_COMP_ID_2

struct bflb_device_s *timer0;
struct bflb_device_s *timer1;

void timer0_isr(int irq, void *arg)
{
    bool status = bflb_timer_get_compint_status(timer0, TIMER_COMP_ID_0);
    if (status) {
        bflb_timer_compint_clear(timer0, TIMER_COMP_ID_0);
        printf("timer0 comp0 trigger\r\n");
    }
    status = bflb_timer_get_compint_status(timer0, TIMER_COMP_ID_1);
    if (status) {
        bflb_timer_compint_clear(timer0, TIMER_COMP_ID_1);
        printf("timer0 comp1 trigger\r\n");
    }
    status = bflb_timer_get_compint_status(timer0, TIMER_COMP_ID_2);
    if (status) {
        bflb_timer_compint_clear(timer0, TIMER_COMP_ID_2);
        printf("timer0 comp2 trigger\r\n");
    }
}

void timer1_isr(int irq, void *arg)
{
    bool status = bflb_timer_get_compint_status(timer1, TIMER_COMP_ID_0);
    if (status) {
        bflb_timer_compint_clear(timer1, TIMER_COMP_ID_0);
        printf("timer1 comp0 trigger\r\n");
    }
    status = bflb_timer_get_compint_status(timer1, TIMER_COMP_ID_1);
    if (status) {
        bflb_timer_compint_clear(timer1, TIMER_COMP_ID_1);
        printf("timer1 comp1 trigger\r\n");
    }
    status = bflb_timer_get_compint_status(timer1, TIMER_COMP_ID_2);
    if (status) {
        bflb_timer_compint_clear(timer1, TIMER_COMP_ID_2);
        printf("timer1 comp2 trigger\r\n");
    }
}

int main(void)
{
    board_init();
    printf("Timer basic test\n");

    /* timer clk = XCLK/(div + 1 )*/
    struct bflb_timer_config_s cfg0;
    cfg0.counter_mode = TIMER_COUNTER_MODE_PROLOAD; /* preload when match occur */
    cfg0.clock_source = TIMER_CLKSRC_XTAL;
    cfg0.clock_div = 39; /* for bl616/bl808/bl606p is 39, for bl702 is 31 */
    cfg0.trigger_comp_id = TEST_TIMER_COMP_ID;
    cfg0.comp0_val = 1000000; /* match value 0  */
    cfg0.comp1_val = 1500000; /* match value 1 */
    cfg0.comp2_val = 2500000; /* match value 2 */
    cfg0.preload_val = 0;    /* preload value */

    struct bflb_timer_config_s cfg1;
    cfg1.counter_mode = TIMER_COUNTER_MODE_PROLOAD;
    cfg1.clock_source = TIMER_CLKSRC_XTAL;
    cfg1.clock_div = 39; /* for bl616/bl808/bl606p is 39, for bl702 is 31 */
    cfg1.trigger_comp_id = TEST_TIMER_COMP_ID;
    cfg1.comp0_val = 1000000; /* match value 0  */
    cfg1.comp1_val = 1500000; /* match value 1 */
    cfg1.comp2_val = 2500000; /* match value 2 */
    cfg1.preload_val = 0;    /* preload value */

    timer0 = bflb_device_get_by_name("timer0");
    timer1 = bflb_device_get_by_name("timer1");

    /* Timer init with default configuration */
    bflb_timer_init(timer0, &cfg0);
    bflb_timer_init(timer1, &cfg1);

    bflb_irq_attach(timer0->irq_num, timer0_isr, NULL);
    bflb_irq_attach(timer1->irq_num, timer1_isr, NULL);
    bflb_irq_enable(timer0->irq_num);
    bflb_irq_enable(timer1->irq_num);

    /* Enable timer */
    bflb_timer_start(timer0);
    bflb_timer_start(timer1);

    printf("case success.\r\n");
    while (1) {
        bflb_mtimer_delay_ms(1500);
    }
}

经过flash编译执行之后，打开串口调试器，配置完成后点击开发板的复位键，进行输出

00f889594b7c4a70b62818ce0ed2d530.png

04cd28f3a2f94c51bb59570de26426c6.png

dd4e20d8b4f84858aa69fe49080ee6d3.png

70528467ee164682a425290cdc0a9cce.png

对上面四张图数据进行总结：

根据端口数据测量计算：

timer0的comp0和comp1 相差结果为：30.081-29.581=500微秒

观察代码cfg0.comp1-val-cfg0.comp0-val=500微秒

结果一致

通过观察其他数据的计算也可以得到与代码结果相吻合的效果，误差值很小。

定时器中断的使用

（在定时器中断里去控制gpio，通过gpio的输出{波形图}去判断定时器的延时，目前我的逻辑分析仪还没有到手，到手之后数据测量完成再进行详细说明，目前就是我的代码测试数据）

#include "bflb_mtimer.h"
#include "bflb_timer.h"
#include "board.h"
#include"bflb_gpio.h"

#define TEST_TIMER_COMP_ID TIMER_COMP_ID_2

struct bflb_device_s *timer0;
// struct bflb_device_s *timer1;
struct bflb_device_s *gpio;

bool gpio_30=false;
bool gpio_31=false;
bool gpio_32=false;//来控制灯

void timer0_isr(int irq, void *arg)//timer0中端服务程序
{
    bool status = bflb_timer_get_compint_status(timer0, TIMER_COMP_ID_0);//0来打印这个
    if (status) {
        bflb_timer_compint_clear(timer0, TIMER_COMP_ID_0);
        // printf("timer0 comp0 trigger\r\n");
        gpio_30=!gpio_30;

    }
    status = bflb_timer_get_compint_status(timer0, TIMER_COMP_ID_1);
    if (status) {//1来打印这个
        bflb_timer_compint_clear(timer0, TIMER_COMP_ID_1);
        // printf("timer0 comp1 trigger\r\n");
        gpio_31=!gpio_31;
    }
    status = bflb_timer_get_compint_status(timer0, TIMER_COMP_ID_2);
    if (status) {//2来打印此
        bflb_timer_compint_clear(timer0, TIMER_COMP_ID_2);
        // printf("timer0 comp2 trigger\r\n");
        gpio_32=!gpio_32;
    }
}

// void timer1_isr(int irq, void *arg)
// {
//     bool status = bflb_timer_get_compint_status(timer1, TIMER_COMP_ID_0);
//     if (status) {
//         bflb_timer_compint_clear(timer1, TIMER_COMP_ID_0);
//         printf("timer1 comp0 trigger\r\n");
//     }
//     status = bflb_timer_get_compint_status(timer1, TIMER_COMP_ID_1);
//     if (status) {
//         bflb_timer_compint_clear(timer1, TIMER_COMP_ID_1);
//         printf("timer1 comp1 trigger\r\n");
//     }
//     status = bflb_timer_get_compint_status(timer1, TIMER_COMP_ID_2);
//     if (status) {
//         bflb_timer_compint_clear(timer1, TIMER_COMP_ID_2);
//         printf("timer1 comp2 trigger\r\n");
//     }
// }

int main(void)
{
    board_init();//板级初始化，例如时钟初始化等
    printf("Timer basic test\n");

    gpio = bflb_device_get_by_name("gpio");
    //初始化为3个端口
    bflb_gpio_init(gpio, GPIO_PIN_30, GPIO_OUTPUT | GPIO_PULLUP | GPIO_SMT_EN | GPIO_DRV_0);
    bflb_gpio_init(gpio, GPIO_PIN_31, GPIO_OUTPUT | GPIO_PULLUP | GPIO_SMT_EN | GPIO_DRV_0);
    bflb_gpio_init(gpio, GPIO_PIN_32, GPIO_OUTPUT | GPIO_PULLUP | GPIO_SMT_EN | GPIO_DRV_0);

    /* timer clk = XCLK/(div + 1 )*/
    struct bflb_timer_config_s cfg0;
    cfg0.counter_mode = TIMER_COUNTER_MODE_PROLOAD; /* preload when match occur */
    cfg0.clock_source = TIMER_CLKSRC_XTAL;//外部时钟为40
    cfg0.clock_div = 39; /* for bl616/bl808/bl606p is 39, for bl702 is 31 *///初始的div分频应该是div+1=40
    //外部时钟40除以40分频，可获得一个1兆的时钟
    cfg0.trigger_comp_id = TEST_TIMER_COMP_ID;
    cfg0.comp0_val = 1000000; /* match value 0  *///说明1兆分了10^6,说明comp0进入时候触发的中端为1s
    cfg0.comp1_val = 1500000; /* match value 1 *///1.5s
    cfg0.comp2_val = 2000000; /* match value 2 *///2.0s
    cfg0.preload_val = 0;    /* preload value */

    // struct bflb_timer_config_s cfg1;
    // cfg1.counter_mode = TIMER_COUNTER_MODE_PROLOAD;
    // cfg1.clock_source = TIMER_CLKSRC_XTAL;
    // cfg1.clock_div = 39; /* for bl616/bl808/bl606p is 39, for bl702 is 31 */
    // cfg1.trigger_comp_id = TEST_TIMER_COMP_ID;
    // cfg1.comp0_val = 1000000; /* match value 0  */
    // cfg1.comp1_val = 1500000; /* match value 1 */
    // cfg1.comp2_val = 2500000; /* match value 2 */
    // cfg1.preload_val = 0;    /* preload value */

    timer0 = bflb_device_get_by_name("timer0");
    // timer1 = bflb_device_get_by_name("timer1");

    /* Timer init with default configuration */
    bflb_timer_init(timer0, &cfg0);
    // bflb_timer_init(timer1, &cfg1);

    bflb_irq_attach(timer0->irq_num, timer0_isr, NULL);
    // bflb_irq_attach(timer1->irq_num, timer1_isr, NULL);
    bflb_irq_enable(timer0->irq_num);
    // bflb_irq_enable(timer1->irq_num);

    /* Enable timer */
    bflb_timer_start(timer0);
    // bflb_timer_start(timer1);

    printf("case success.\r\n");
    while (1) {
        //bflb_mtimer_delay_ms(1500);
        gpio_30 ? bflb_gpio_set(gpio,GPIO_PIN_30) : bflb_gpio_reset(gpio,GPIO_PIN_30);
        gpio_31 ? bflb_gpio_set(gpio,GPIO_PIN_31) : bflb_gpio_reset(gpio,GPIO_PIN_31);
        gpio_32 ? bflb_gpio_set(gpio,GPIO_PIN_32) : bflb_gpio_reset(gpio,GPIO_PIN_32);
        //控制灯光什么时候亮什么时候灭
    }
}

通过控制板子的灯光来进行相关数据测试，后续逻辑分析仪回来后会持续更新。。。

总结

嵌入式真的比算法有趣多啦哈哈哈，po上一张学习的图，一起加油！！！

69415c26f01c4267b91595603c27ff0c.jpeg

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WT_0213 | 2023-11-30 09:17:12 | 显示全部楼层
写的不错
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干簧管 | 2023-11-30 09:57:49 | 显示全部楼层
牛，顶
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496199544 | 2023-11-30 12:52:44 | 显示全部楼层
顶
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干簧管 | 2023-11-30 14:19:48 | 显示全部楼层
打卡
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san | 2023-12-1 23:26:08 | 显示全部楼层
顶
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干簧管 | 2023-12-4 09:57:01 | 显示全部楼层
不错
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