diff --git a/inc/i2c.h b/inc/i2c.h index e592da8..c606a4a 100644 --- a/inc/i2c.h +++ b/inc/i2c.h @@ -69,7 +69,9 @@ void i2c_send_nack(void); uint8_t i2c_wait_ack(void); +void i2c_send_byte(uint8_t byte); +uint8_t i2c_receive_byte(uint8_t ack); void i2c_config(void); diff --git a/sdk/CMSIS/src/system_gd32e23x.c b/sdk/CMSIS/src/system_gd32e23x.c index 6a048f0..d8ab26e 100644 --- a/sdk/CMSIS/src/system_gd32e23x.c +++ b/sdk/CMSIS/src/system_gd32e23x.c @@ -45,9 +45,9 @@ /* select a system clock by uncommenting the following line */ //#define __SYSTEM_CLOCK_8M_HXTAL (__HXTAL) -#define __SYSTEM_CLOCK_8M_IRC8M (__IRC8M) +// #define __SYSTEM_CLOCK_8M_IRC8M (__IRC8M) // #define __SYSTEM_CLOCK_72M_PLL_HXTAL (uint32_t)(72000000) -// #define __SYSTEM_CLOCK_72M_PLL_IRC8M_DIV2 (uint32_t)(72000000) +#define __SYSTEM_CLOCK_72M_PLL_IRC8M_DIV2 (uint32_t)(72000000) #define RCU_MODIFY(__delay) do{ \ volatile uint32_t i; \ diff --git a/src/i2c.c b/src/i2c.c index bd104e9..667efab 100644 --- a/src/i2c.c +++ b/src/i2c.c @@ -26,7 +26,7 @@ void i2c_gpio_config(void) { } void i2c_delay(void) { - delay_us(5); // Adjust delay as needed + delay_us(40); // Adjust delay as needed } /*! @@ -48,27 +48,41 @@ void si2c_config(void) { I2C_SDA_HIGH(); } +// void sda_out(void) { +// gpio_mode_set(I2C_SDA_PORT, GPIO_MODE_OUTPUT, GPIO_PUPD_PULLUP, I2C_SDA_PIN); +// gpio_output_options_set(I2C_SDA_PORT, GPIO_OTYPE_OD, GPIO_OSPEED_50MHZ, I2C_SDA_PIN); +// } +// +// void sda_in(void) { +// gpio_mode_set(I2C_SDA_PORT, GPIO_MODE_INPUT, GPIO_PUPD_PULLUP, I2C_SDA_PIN); +// } + void i2c_start(void) { + // sda_out(); I2C_SDA_HIGH(); I2C_SCL_HIGH(); i2c_delay(); I2C_SDA_LOW(); i2c_delay(); I2C_SCL_LOW(); + i2c_delay(); + i2c_delay(); // 从全高开始，SCL为高期间，SDA下降沿表示start信号，再拉低SCL } void i2c_stop(void) { + // sda_out(); I2C_SCL_LOW(); I2C_SDA_LOW(); i2c_delay(); I2C_SCL_HIGH(); i2c_delay(); I2C_SDA_HIGH(); - // 从全低开始，SCL为高期间，SDA上升沿表示stop信号，再拉高SCL + // 从全低开始，SCL为高期间，SDA上升沿表示stop } void i2c_send_ack(void) { + // sda_out(); I2C_SDA_LOW(); i2c_delay(); I2C_SCL_HIGH(); @@ -80,6 +94,7 @@ void i2c_send_ack(void) { } void i2c_send_nack(void) { + // sda_out(); I2C_SDA_HIGH(); i2c_delay(); I2C_SCL_HIGH(); @@ -91,6 +106,7 @@ void i2c_send_nack(void) { } uint8_t i2c_wait_ack(void) { + // sda_in(); I2C_SDA_HIGH(); i2c_delay(); I2C_SCL_HIGH(); @@ -102,6 +118,7 @@ uint8_t i2c_wait_ack(void) { } void i2c_send_byte(uint8_t byte) { + // sda_out(); for (int i = 0; i < 8; i++) { if (byte & 0x80) { //通过&操作获取第一位是1还是0 I2C_SDA_HIGH(); //SCL低电平期间，SDA高电平表示1 @@ -113,11 +130,13 @@ void i2c_send_byte(uint8_t byte) { I2C_SCL_HIGH(); //SCL拉高电平，SDA电平状态保持不变 i2c_delay(); I2C_SCL_LOW(); //SCL拉低电平 + delay_us(5); } - i2c_wait_ack(); + // i2c_wait_ack(); } uint8_t i2c_receive_byte(uint8_t ack) { + // sda_in(); uint8_t byte = 0; I2C_SDA_HIGH(); //从高开始 for (int i = 0; i < 8; i++) { diff --git a/src/led.c b/src/led.c index 2c0d34a..f203941 100644 --- a/src/led.c +++ b/src/led.c @@ -16,10 +16,10 @@ void led_config(void) { timer_parameter_struct timer_initpara; timer_struct_para_init(&timer_initpara); - timer_initpara.prescaler = 799; + timer_initpara.prescaler = 7199; timer_initpara.alignedmode = TIMER_COUNTER_EDGE; timer_initpara.counterdirection = TIMER_COUNTER_UP; - timer_initpara.period = 999; + timer_initpara.period = 9999; timer_initpara.clockdivision = TIMER_CKDIV_DIV1; timer_init(LED_TIMER, &timer_initpara); diff --git a/src/main.c b/src/main.c index c23361b..8712ad3 100644 --- a/src/main.c +++ b/src/main.c @@ -15,8 +15,20 @@ #include "ldc1612.h" #include "tmp112.h" -uint32_t g_temperature_uint32; -uint32_t g_eddy_current_value_uint32; +// uint32_t g_temperature_uint32; +// uint32_t g_eddy_current_value_uint32; + +void watchdog_init(void) { + /* Enable the LSI clock */ + rcu_osci_on(RCU_IRC40K); + rcu_osci_stab_wait(RCU_IRC40K); + + /* Configure FWDGT counter clock: 40KHz(IRC40K) / 64 = 0.625 KHz */ + fwdgt_config(625, FWDGT_PSC_DIV256); // Set timeout to 1 seconds (625 / 0.625 KHz) + + /* Enable FWDGT */ + fwdgt_enable(); +} /*! \brief main function @@ -32,21 +44,76 @@ int main(void) { rs485_config(); /* configure LED */ led_config(); + + // watchdog_init(); /* configure I2C */ // i2c_gpio_config(); // i2c_config(); // ldc1612_iic_get_sensor_infomation(); /* configure LDC1612 */ - ldc1612_single_ch0_config(); + // ldc1612_single_ch0_config(); + + uint8_t data[2] = {0}; + + printf("Start\n"); + + while (1) { - delay_ms(100); - g_eddy_current_value_uint32 = 0; - g_temperature_uint32 = 0; - g_eddy_current_value_uint32 = ldc1612_get_raw_channel_result(CHANNEL_0); - g_temperature_uint32 = tmp112a_get_raw_channel_result(); - // printf("1"); + si2c_config(); + printf("111\n"); + + i2c_start(); + i2c_send_byte((0x2B << 1) + 1); + if (!i2c_wait_ack()) + { + printf("NACK\n"); + } + + i2c_delay(); + + i2c_send_byte(0x7E); + // if (!i2c_wait_ack()) + // { + // printf("NACK\n"); + // } + + i2c_delay(); + i2c_start(); + + i2c_send_byte((0x2B << 1)); + if (!i2c_wait_ack()) + { + printf("NACK\n"); + } + + i2c_delay(); + + data[0] = i2c_receive_byte(1); + i2c_delay(); + data[1] = i2c_receive_byte(0); + + delay_us(5); + i2c_stop(); + // printf("OK\n"); + + printf("0x%x 0x%x\n", data[0], data[1]); + + + + + + // i2c_start(); + // delay_ms(1); + // i2c_stop(); + // delay_ms(1); + delay_ms(1000); + // g_eddy_current_value_uint32 = 0; + // g_temperature_uint32 = 0; + // g_eddy_current_value_uint32 = ldc1612_get_raw_channel_result(CHANNEL_0); + // g_temperature_uint32 = tmp112a_get_raw_channel_result(); + printf("1\n"); } } diff --git a/src/rs485.c b/src/rs485.c index b578061..cde7b3f 100644 --- a/src/rs485.c +++ b/src/rs485.c @@ -52,9 +52,9 @@ void process_command(uint8_t *cmd, size_t length) { // printf("%d", length); sprintf(combined_str, "%c%c", cmd[3], cmd[4]); if (strcmp(combined_str, "M1") == 0) { - eddy_current_value_report(); + // eddy_current_value_report(); } else if (strcmp(combined_str, "M2") == 0) { - tempture_value_report(); + // tempture_value_report(); } else { printf("%c%c%c%c%c%c%c", 0xB5, 0xF0, 0x03, 0x65, 0x72, 0x72, 0x3C); return;