cs1180 init

Signed-off-by: huhui <huhui@sharkgulf.com>

Application/bsp/cs1180.c

@@ -5,7 +5,7 @@
 #define CS1180_RDATAC   0X03
 #define CS1180_STOPC    0x0f
 #define CS1180_RREG     0x10
-#define CS1180_WREG     0x05
+#define CS1180_WREG     0x50
 #define CS1180_CALSELF  0xf0
 #define CS1180_OCALSELF 0xf1
 #define CS1180_SLFGCAL  0xf2
@@ -16,42 +16,176 @@
 #define CS1180_SLEEP    0xfd
 #define CS1180_RESET    0xfe
 
+#define GAIN 0x07
 
-static void _spi_write_data(uint8_t data);
-static uint8_t _spi_read_data(uint8_t data);
+static void cs1180_write_one_data(uint8_t data);
+static uint8_t cs1180_read_one_data(uint8_t data);
 
+static void delay(void)
+{
+	uint32_t  count = 3;
+	while(count--); 
+}
+static void delay_50us(void)
+{
+	uint32_t  count = 3*50;
+	while(count--); 
+}
 
-void cs1180_init(void){
-	spi1_init();
-	
-	_spi_read_data(0xFF);
+static void delay_1ms(int ms){
 }
 
-static void _spi_write_data(uint8_t data){
-	spi1_send_byte(data, NULL);
+static void spi_write_reg(uint8_t reg, uint8_t *data, uint8_t len){
+	cs1180_cs(0);
+	cs1180_write_one_data(CS1180_WREG|reg);
+	cs1180_write_one_data(len - 1);
+	while(len -- > 0){
+		cs1180_write_one_data(*data);
+		data++;
+	}
 }
 
-static uint8_t _spi_read_data(uint8_t data){
-	uint8_t r_data = 0xFF;
-	spi1_send_byte(data, &r_data);
-	return r_data;
+#if 0
+static void spi_read_reg(uint8_t reg, uint8_t *data, uint8_t len){
+	cs1180_cs(0);
+	cs1180_write_one_data(CS1180_RREG|reg);
+	cs1180_write_one_data(len - 1);
+	while(len -- > 0){
+		*data = cs1180_read_one_data(0xFF);
+		data++;
+	}
+}
+#endif
+static void cs1180_osalsys(void)
+{
+	cs1180_cs(0);
+	cs1180_write_one_data(CS1180_OCALSYS);
+	cs1180_cs(1);
 }
 
-void cs1180_osalsys(void)
+static void cs1180_calibSelf(void)
 {
-		//------自校准
 	cs1180_cs(0);
-	_spi_write_data(CS1180_OCALSYS);
+	cs1180_write_one_data(CS1180_CALSELF);
 	cs1180_cs(1);
 }
 
-void cs1180_calibSelf(void)
+
+void cs1180_init(void){
+	spi1_init();
+	delay();
+	cs1180_cs(0);
+	cs1180_write_one_data(CS1180_RESET);
+	delay();
+	cs1180_cs(1);
+
+	cs1180_cs(0);
+	delay();
+	/* 0x07 pga =128   设置STEPUP寄存器 
+	 * 0x01 设置ad 通道
+	 * 0x02 输出频率 15hz,参考电压2.5V 输出数据高位在前，输入缓冲器除能，采样频率 OSC/128,数据格式双极性
+	*/
+	uint8_t data[] = {0xF&GAIN, 0x01, 0x00};
+	spi_write_reg(0x00, data, 3);
+	delay();
+	cs1180_cs(1);
+	delay_50us();	
+	cs1180_calibSelf();
+	while (IS_CS1180_READY());
+	while (!IS_CS1180_READY());
+	delay_1ms(10);
+	while (IS_CS1180_READY()); //扔调一次数据
+
+	cs1180_calibSelf();
+
+//****************************************************
+	cs1180_osalsys();
+	while (IS_CS1180_READY());
+	while (!IS_CS1180_READY());
+	delay_1ms(10);
+	while (IS_CS1180_READY()); //扔调一次数据
+	cs1180_osalsys();
+//****************************************************
+	delay_1ms(500);
+	//**************************************************************************/
+	while (IS_CS1180_READY());
+}
+
+
+//adc/2^19/128*1.25/0.001
+int32_t Cal_Current(uint32_t adc,uint8_t fh )
 {
-		//------自校准
+#if 0
+	const uint32_t jing_du = 0x0007FFFF;
+	uint8_t zeng_yi = 128;//(g_zeng_yi<<7);
+	double vrf_v = 123500000.0/RSENSE_VAL;// 1.25*1000,dianzu 1mo*100,*1000ma
+	int32_t cur = 0;
+
+	cur = (int32_t)((double)adc/jing_du/zeng_yi*vrf_v);
+
+	if(fh == 1)
+		cur = 0 - cur;
+
+	return cur;
+#else
+	return 0;
+#endif
+}
+/**************************************************************************************
+*函数原型： unsigned long ReadAdData(void)
+*功能： 从CS1160中读取ad转换结果，并将结果以长整型数据返回
+**************************************************************************************/
+int32_t ReadAdData(void)
+{
+	uint8_t i,fh = 0;
+	uint8_t Buf_rev[3];
+	uint32_t a;
+
+	while (IS_CS1180_READY()); //当drdy 为高时，不读取数据
+	a = 0;
+
 	cs1180_cs(0);
-	_spi_write_data(CS1180_CALSELF);
+	cs1180_write_one_data(CS1180_RDATA); //0X01
+
+	//for (i=0;i<5;i++)
+	{
+		delay_50us();
+	}
+	
+	
+	for (i=0;i<3;i++)
+	{
+		Buf_rev[i] = cs1180_read_one_data(0xFF);
+	}
 	cs1180_cs(1);
+		
+	a = Buf_rev[0];
+	a = a<<8;
+	a |= Buf_rev[1];
+	a = a<<8;
+	a |= Buf_rev[2];
+	a>>=4;
+
+	if(a >= 0x80000)
+	{
+		a = ~a;
+		a = a&0x7FFFF;
+		fh = 1;
+	}
+	
+	
+	return Cal_Current(a,fh) - 5;
+	
 }
 
 
+static void cs1180_write_one_data(uint8_t data){
+	spi1_send_byte(data, NULL);
+}
+
+static uint8_t cs1180_read_one_data(uint8_t data){
+	uint8_t r_data = 0xFF;
+	spi1_send_byte(data, &r_data);
+	return r_data;
+}