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#include "led.h"
#include "delay.h"
#include "sys.h"
#include "key.h"
#include "usart.h"
#include "exti.h"
#include "wdg.h"
#include "timer.h"
#include "stmflash.h"
#include "usb_lib.h"
#include "math.h"
#include "hw_config.h"
#include "string.h"
#include "stdlib.h"
#include "lcd.h"
#include "task_manage.h"
#include "bsp_ads1256.h"
int main(void)
{
int32_t adc[8];
int32_t volt[8];
uint8_t i;
uint8_t ch_num;
char infoBackPC[64];
char infoShowLCD[64];
SystemInit();
delay_init(72); //延时初始化
NVIC_Configuration();
uart_init(256000); //串口初始化
key_init();//按键初始化
initial_lcd();//液晶初始化
LCD_Clear();
LCD_Refresh_Gram();
LCD_Show_CEStr(0,0,"ADS1256");//黑色
LCD_Refresh_Gram();
USBRelinkConfig();
delay_ms(100); /* 等待上电稳定，等基准电压电路稳定, bsp_InitADS1256() 内部会进行自校准 */
bsp_InitADS1256(); /* 初始化配置ADS1256. PGA=1, DRATE=30KSPS, BUFEN=1, 输入正负5V */
/* 打印芯片ID (通过读ID可以判断硬件接口是否正常) , 正常时状态寄存器的高4bit = 3 */
{
uint8_t id;
id = ADS1256_ReadChipID();
USB_SendStr("\r\n");
USB_SendStr("读取芯片ID\r\n");
if (id != 3)
{
sprintf(infoBackPC, "Error, ASD1256 Chip ID = 0x%X\r\n", id);
}
else
{
sprintf(infoBackPC, "Ok, ASD1256 Chip ID = 0x%X\r\n", id);
}
USB_TxWrite((uint8_t*)infoBackPC, strlen(infoBackPC));
}
/* 设置PGA增益，数据更新速率 */
#if 1
USB_SendStr("\r\nPGA增益 = 1, 数据输出速率 = 15sps, 单端8路扫描\r\n\r\n");
ADS1256_CfgADC(ADS1256_GAIN_1, ADS1256_15SPS); /* 配置ADC参数： 增益1:1, 数据输出速率 15Hz */
/*
中断服务程序会自动读取ADC结果保存在全局变量，主程序通过 ADS1256_GetAdc() 函数来读取这些数据
*/
ADS1256_StartScan(0); /* 启动中断扫描模式. 0表示单端8路，1表示差分4路 */
ch_num = 8; /* 通道数 = 8 或者4 */
#else
USB_SendStr("\r\nPGA增益 = 1, 数据输出速率 = 15sps, 差分4路扫描\r\n\r\n");
ADS1256_CfgADC(ADS1256_GAIN_1, ADS1256_15SPS); /* 配置ADC参数： 增益1:1, 数据输出速率 15Hz */
/*
中断服务程序会自动读取ADC结果保存在全局变量，主程序通过 ADS1256_GetAdc() 函数来读取这些数据
*/
ADS1256_StartScan(1); /* 启动中断扫描模式. 0表示单端8路，1表示差分4路 */
ch_num = 4; /* 通道数 = 8 或者4 */
#endif
while(1)
{
for (i = 0; i < ch_num; i++)
{
/* 从全局缓冲区读取采样结果。 采样结果是在中断服务程序中读取的。*/
adc[i] = ADS1256_GetAdc(i);
/* 4194303 = 2.5V , 这是理论值，实际可以根据2.5V基准的实际值进行公式矫正 */
volt[i] = ((int64_t)adc[i] * 2500000) / 4194303; /* 计算实际电压值（近似估算的），如需准确，请进行校准 */
}
if(upToPC)
/* 打印采集数据 */
{
int32_t iTemp;
upToPC = 0;
sprintf(infoBackPC, "[%dCH_NUM]\r\n", ch_num);USB_TxWrite((uint8_t*)infoBackPC, strlen(infoBackPC));
for (i = 0; i < ch_num; i++)
{
iTemp = volt[i]; /* 余数，uV */
if (iTemp < 0)
{
iTemp = -iTemp;
sprintf(infoBackPC, "%d=%6d,(-%d.%03d %03d V) \r\n", i, adc[i], iTemp /1000000, (iTemp%1000000)/1000, iTemp%1000);
}
else
{
sprintf(infoBackPC,"%d=%6d,( %d.%03d %03d V) \r\n", i, adc[i], iTemp/1000000, (iTemp%1000000)/1000, iTemp%1000);
}
USB_TxWrite((uint8_t*)infoBackPC, strlen(infoBackPC));
}
//在液晶均显示8通道电压，单位0.1mv
for(i = 0; i < 4; i++)
{
sprintf(infoShowLCD, "CH%d", i*2);
LCD_ShowString(1,0 , i*16, (const u8*)infoShowLCD);
LCD_Refresh_Gram();
sprintf(infoShowLCD, "%05d", volt[i*2]/100);
LCD_ShowString(0,24 , i*16, (const u8*)infoShowLCD);
LCD_Refresh_Gram();
sprintf(infoShowLCD, "CH%d", i*2+1);
LCD_ShowString(1,64 , i*16, (const u8*)infoShowLCD);
LCD_Refresh_Gram();
sprintf(infoShowLCD, "%05d", volt[i*2+1]/100);
LCD_ShowString(0,88 , i*16, (const u8*)infoShowLCD);
LCD_Refresh_Gram();
}
LCD_Refresh_Gram();
}
}
}
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