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@@ -0,0 +1,398 @@
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+#include "hal_sy6970.h"
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+
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+#define __nop() __asm__("NOP")
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+
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+#define GPIO_SDA DioConf_DioChannel_PTA10_GPIO_IN_OUT_MCU_BATT_IIC_SDA
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+#define GPIO_SCL DioConf_DioChannel_PTC5_GPIO_IN_OUT_MCU_BATT_IIC_SCK
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+
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+#define READ_SDA4 Dio_ReadChannel(GPIO_SDA)
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+
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+#define GPIO_SETPIN(channel) Dio_WriteChannel(channel,1)
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+#define GPIO_RESETPIN(channel) Dio_WriteChannel(channel,0)
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+
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+
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+#define IIC_SDA4(n) (n?GPIO_SETPIN(GPIO_SDA):GPIO_RESETPIN(GPIO_SDA))
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+#define IIC_SCL4(n) (n?GPIO_SETPIN(GPIO_SCL):GPIO_RESETPIN(GPIO_SCL))
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+
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+
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+
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+#define sy6970_speed 5
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+
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+//需要示波器调1us的时间
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+static void delay_us(uint16_t time)
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+{
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+ uint16_t i;
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+
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+ for(i=time;i>0;i--)
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+ {
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+ __nop();__nop();__nop();__nop();__nop();__nop();__nop();__nop();__nop();__nop();
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+ __nop();__nop();__nop();__nop();__nop();__nop();__nop();__nop();__nop();__nop();
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+ __nop();__nop();__nop();__nop();__nop();__nop();__nop();__nop();__nop();__nop();
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+ __nop();__nop();__nop();__nop();__nop();__nop();__nop();__nop();__nop();__nop();
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+ __nop();__nop();__nop();__nop();__nop();__nop();__nop();__nop();__nop();__nop();
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+ __nop();__nop();__nop();__nop();__nop();__nop();__nop();__nop();__nop();__nop();
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+ __nop();__nop();__nop();__nop();__nop();__nop();__nop();__nop();__nop();__nop();
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+ __nop();__nop();__nop();__nop();__nop();__nop();__nop();__nop();__nop();__nop();
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+ __nop();__nop();__nop();__nop();__nop();__nop();__nop();__nop();__nop();__nop();
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+ __nop();__nop();__nop();__nop();__nop();__nop();__nop();__nop();__nop();__nop();
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+ __nop();__nop();__nop();__nop();__nop();__nop();__nop();__nop();__nop();__nop();
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+ __nop();__nop();__nop();__nop();__nop();__nop();__nop();__nop();__nop();__nop();
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+ __nop();__nop();__nop();__nop();__nop();__nop();__nop();__nop();__nop();__nop();
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+ __nop();__nop();__nop();__nop();__nop();__nop();__nop();__nop();__nop();__nop();
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+ __nop();__nop();__nop();__nop();__nop();__nop();__nop();__nop();__nop();__nop();
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+ __nop();__nop();__nop();__nop();__nop();__nop();__nop();__nop();__nop();__nop();
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+ __nop();__nop();__nop();__nop();__nop();__nop();__nop();__nop();__nop();__nop();
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+ __nop();__nop();__nop();__nop();__nop();__nop();__nop();__nop();__nop();__nop();
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+ }
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+}
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+
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+//static void iic4_init(void)
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+//{
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+// stc_gpio_init_t pstcGpioInit1;
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+// GPIO_StructInit(&pstcGpioInit1);
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+//
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+// pstcGpioInit1.u16PinDir = PIN_DIR_OUT;
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+// pstcGpioInit1.u16PinState = PIN_STAT_RST;
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+// GPIO_Init(GPIO_PORT_A, GPIO_PIN_11,&pstcGpioInit1);
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+// GPIO_Init(GPIO_PORT_A, GPIO_PIN_12,&pstcGpioInit1);
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+//
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+// GPIO_SetPins(GPIO_PORT_A, GPIO_PIN_11);
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+// GPIO_SetPins(GPIO_PORT_A, GPIO_PIN_12);
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+//}
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+
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+//void sy6970_init(void)
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+//{
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+// iic4_init();
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+//}
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+
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+static void SDA_IN4(void)
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+{
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+// stc_gpio_init_t pstcGpioInit3;//iic的引脚
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+// pstcGpioInit3.u16PinDir = PIN_DIR_IN;
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+// //pstcGpioInit3.u16PinInputType = PIN_PU_ON;
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+// GPIO_Init(GPIO_PORT_A, GPIO_PIN_12,&pstcGpioInit3);
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+ Port_SetPinDirection(PortConfigSet_PortContainer_GPIO_PTA10_GPIO_IN_OUT_MCU_BATT_IIC_SDA,PORT_CI_PORT_PIN_IN);
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+ //????Port_SetPinDirection(GPIO_SDA,PORT_CI_PORT_PIN_IN);
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+}
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+
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+static void SDA_OUT4(void)
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+{
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+// stc_gpio_init_t pstcGpioInit3;
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+// pstcGpioInit3.u16PinDir = PIN_DIR_OUT;
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+// pstcGpioInit3.u16PinOutputType=PIN_OUT_TYPE_NMOS;
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+// GPIO_Init(GPIO_PORT_A, GPIO_PIN_12,&pstcGpioInit3);
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+ Port_SetPinDirection(PortConfigSet_PortContainer_GPIO_PTA10_GPIO_IN_OUT_MCU_BATT_IIC_SDA,PORT_CI_PORT_PIN_OUT);
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+ //????Port_SetPinDirection(GPIO_SDA,PORT_CI_PORT_PIN_OUT);
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+}
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+
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+
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+
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+static void iic_start(void)
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+{
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+ SDA_OUT4();
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+
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+ IIC_SDA4(1);
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+ IIC_SCL4(1);
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+ delay_us(sy6970_speed);
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+
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+ IIC_SDA4(0);
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+ delay_us(sy6970_speed);
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+ IIC_SCL4(0);
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+}
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+
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+
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+static void iic_stop(void)
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+{
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+ SDA_OUT4();
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+
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+ IIC_SCL4(0);
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+ IIC_SDA4(0);
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+ delay_us(sy6970_speed);
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+
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+ IIC_SCL4(1);
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+ IIC_SDA4(1);
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+ delay_us(sy6970_speed);
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+}
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+
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+static void iic_ack(void)
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+{
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+ SDA_OUT4();
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+
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+ IIC_SCL4(0);
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+ IIC_SDA4(0);
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+ delay_us(sy6970_speed);
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+
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+ IIC_SCL4(1);
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+ delay_us(sy6970_speed);
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+ IIC_SCL4(0);
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+}
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+
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+static void iic_nack(void)
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+{
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+ SDA_OUT4();
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+
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+ IIC_SCL4(0);
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+ IIC_SDA4(1);
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+ delay_us(sy6970_speed);
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+
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+ IIC_SCL4(1);
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+ delay_us(sy6970_speed);
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+ IIC_SCL4(0);
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+}
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+
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+
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+static uint8_t iic_wait_ack(void)
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+{
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+ uint16_t t =200;
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+ SDA_OUT4();
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+
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+ IIC_SDA4(1);delay_us(1);
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+ IIC_SCL4(1);delay_us(1);
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+
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+ SDA_IN4();
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+
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+ while(READ_SDA4)
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+ {
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+ t--;
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+
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+ if(t==0)
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+ {
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+ iic_stop();
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+ return 1;
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+ }
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+ delay_us(1);
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+ }
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+ IIC_SCL4(0);
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+
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+ return 0;
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+}
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+
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+
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+static void iic_send_byte(uint8_t byte)
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+{
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+ uint8_t bit_cnt;
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+ SDA_OUT4();
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+ IIC_SCL4(0);
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+
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+ for(bit_cnt=0;bit_cnt<8;bit_cnt++)
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+ {
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+ if(byte&0x80)
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+ IIC_SDA4(1);
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+ else
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+ IIC_SDA4(0);
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+
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+ byte<<=1;
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+ delay_us(sy6970_speed);
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+ IIC_SCL4(1);
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+ delay_us(sy6970_speed);
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+ IIC_SCL4(0);
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+ }
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+}
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+
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+
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+static uint8_t iic_recive_byte(unsigned char ack)
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+{
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+ uint8_t retc = 0;
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+ uint8_t bit_cnt;
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+
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+ SDA_IN4();
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+ delay_us(1);
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+
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+ for(bit_cnt=0;bit_cnt<8;bit_cnt++)
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+ {
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+ IIC_SCL4(0);
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+ delay_us(sy6970_speed);
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+ IIC_SCL4(1);
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+
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+ retc=retc<<1;
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+
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+ if(READ_SDA4)
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+ retc++;
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+
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+ delay_us(sy6970_speed);
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+ }
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+
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+ return(retc);
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+}
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+
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+
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+
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+static void sy6970_write_byte(uint8_t dev_addr,uint8_t RAddr, uint8_t WData)
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+{
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+ iic_start();
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+ iic_send_byte(dev_addr);
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+ iic_wait_ack();
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+ iic_send_byte(RAddr);
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+ iic_wait_ack();
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+ iic_send_byte(WData);
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+ iic_wait_ack();
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+ iic_stop();
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+}
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+
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+
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+static void sy6970_read_byte(uint8_t dev_addr,uint8_t RAddr, uint8_t *RData)
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+{
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+ iic_start();
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+ iic_send_byte(dev_addr);
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+ iic_wait_ack();
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+ iic_send_byte(RAddr);
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+ iic_wait_ack();
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+ iic_start();
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+ iic_send_byte(dev_addr|0x01);
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+ iic_wait_ack();
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+ *RData = iic_recive_byte(0);
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+ iic_stop();
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+}
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+
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+
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+
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+
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+_Bool sy6970_write_bytes ( unsigned char SlaveAddr, unsigned char RegAddr, unsigned char *Buf, unsigned char Num )
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+{
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+ iic_start(); //起始信号
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+ //发送设备地址(写)
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+ iic_send_byte ( SlaveAddr ); //等待应答
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+ iic_wait_ack();
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+
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+ //发送寄存器地址
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+ iic_send_byte ( RegAddr ) ; //等待应答
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+ iic_wait_ack();
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+ while ( Num-- ) //循环写入数据
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+ {
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+ //发送数据
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+ iic_send_byte ( *Buf ); //等待应答
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+ iic_wait_ack();
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+ Buf++; //数据指针偏移到下一个
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+ delay_us(10);
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+ }
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+ iic_stop(); //停止信号
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+ return 0;
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+}
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+
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+
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+
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+
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+_Bool sy6970_read_bytes ( unsigned char SlaveAddr, unsigned char RegAddr, unsigned char *Buf, unsigned char Num )
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+{
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+ iic_start(); //起始信号
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+ //发送设备地址(写)
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+ iic_send_byte ( SlaveAddr ); //等待应答
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+ iic_wait_ack();
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+ //发送寄存器地址
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+ iic_send_byte ( RegAddr ); //等待应答
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+ iic_wait_ack();
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+ iic_start(); //重启信号
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+ //发送设备地址(读)
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+ iic_send_byte ( SlaveAddr + 1 ); //等待应答
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+ iic_wait_ack();
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+ while ( Num-- )
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+ {
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+ //偏移到下一个数据存储地址
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+ if ( Num == 0 )
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+ {
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+ *Buf = iic_recive_byte ( 0 ); //最后一个数据需要回NOACK
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+ }
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+ else
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+ {
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+ *Buf = iic_recive_byte ( 1 ); //回应ACK
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+ }
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+ Buf++;
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+ }
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+ iic_stop();
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+ return 0;
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+}
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+
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+
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+
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+
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+/**********************************************SY6970 操作函数****************************************************/
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+/*
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+ * 设置sy6970输入电流的大小
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+ *
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+ * set_val 需要操作的从机设备
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+ Fast Charge Current Limit:
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+ ICHG=[ICHG]*64mA
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+ Range:0mA(0000000)-5056mA(1001111)
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+ 0000000=0mA(Disable Charge)
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+ 0000001=64mA
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+ …
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+ 0100000=2048mA(Default)
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+ …
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+ 1001111~1111111=5056mA
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+ *
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+ * 返回值：void
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+ * */
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+void sy6970_set_input_current_limit(uint8_t set_val)
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+{
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+ set_val&= 0x7F;
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+ sy6970_write_byte(SY6970_ADDR,0x04,set_val);
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+}
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+
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+
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+
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+/*
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+ * 设置sy6970输入电压的大小
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+ *
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+ * set_val 需要操作的从机设备
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+ Charge Voltage Limit:
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+ VREG=3.840V+[VREG]*16mV
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+ Range:3.840V-4.608V(110000)
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+ 000000=3.840V
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+ 000001=3.856V
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+ …
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+ 010111=4.208V(Default)
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+ …
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+ 110000~111111=4.608V
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+ *
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+ * 返回值：void
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+ * */
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+void sy6970_set_input_voltage_limit(uint8_t set_val)
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+{
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+ set_val&= 0xFC;
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+ sy6970_write_byte(SY6970_ADDR,0x06,set_val);
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+}
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+
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+/*充电使能*/
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+void sy6970_charge_enable(void)
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+{
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+ uint8_t set_val = 0x00;
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+ set_val&= 0x01<<4;
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+ sy6970_write_byte(SY6970_ADDR,0x03,set_val);
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+}
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+
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+/*充电不使能*/
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+void sy6970_charge_disable(void)
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+{
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+ uint8_t set_val = 0x00;
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+ set_val&= 0x00<<4;
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+ sy6970_write_byte(SY6970_ADDR,0x03,set_val);
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+}
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+
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+
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+/*充电状态查询
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+返回值：
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+00-Not Charging
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+01-Pre-charge (VBAT <VBATLOWV)
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+10-Fast Charging
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+11-Charge Termination Done
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+*/
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+uint8_t sy6970_charge_status(void)
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+{
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+ uint8_t status = 0;
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+ sy6970_read_byte(SY6970_ADDR,0x0b,&status);
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+ status >>=3;
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+ status &=0x03;
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+ return status;
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+}
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+
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+uint8_t statusx = 0;
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+#include "FreeRTOS.h"
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+#include "task.h"
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+void sy6970_task(void *argv)
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+{
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+ while(1)
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+ {
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+ statusx = sy6970_charge_status();
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+ vTaskDelay(500);
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+ }
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+}
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BJQX-ZHENGCHAO\Zhengchao