Stm32 driver 12bit ad TLC2543 (I/O simulation mode)

 

/*************************************** **************************************** ***********
* File name: tlc2543.c
* Copyright:
* Module name: TLC2543 driver
* CPU: stm32f103rct6 clock speed: 72 m
* Author:
* Creation date:
* Function Overview:
* ---------------------------------------- Modification history ------------------------------------------
* Current version: modifier: modification date:
* Modification description:
**************************************** **************************************** **********/

# Include "cmdlib \ stm32f10x. H"
# Include "Hal. H"

# Define tlc2543_sck_h gpiob-> bsrr = gpio_pin_15
# Define tlc2543_sck_l gpiob-> BRR = gpio_pin_15

# Define tlc2543_si_h gpioc-> bsrr = gpio_pin_6
# Define tlc2543_si_l gpioc-> BRR = gpio_pin_6

# Define tlc2543_cs_h gpioc-> bsrr = gpio_pin_8
# Define tlc2543_cs_l gpioc-> BRR = gpio_pin_8

# Define tlc2543_so_h gpioc-> bsrr = gpio_pin_7
# Define tlc2543_so_l gpioc-> BRR = gpio_pin_7
# Define tlc2543_so_read gpioc-> IDR & gpio_pin_7
// # Define tlc2543_so_read1 gpioc-> ODR & gpio_pin_7

/*************************************** **************************************** ***********
* Function name: tlc2543_gpio_config
* Function description:
* Parameter: Parameter Name: input/output? Type description
*
* Return value:
* Author:
* Creation date:
* Global variables:
* Global static variables:
* Local static variables:
* ---------------------------------------- Modification history ------------------------------------------
* Current version: modifier: modification date:
* Modification description:
**************************************** **************************************** **********/
Void tlc2543_gpio_config (void)
{
Gpio_inittypedef gpio_initstructure;

Gpio_initstructure.gpio_pin = gpio_pin_6 | gpio_pin_8;
Gpio_initstructure.gpio_speed = gpio_speed_50mhz;
Gpio_initstructure.gpio_mode = gpio_mode_out_pp;
Gpio_init (gpioc, & gpio_initstructure );

Gpio_initstructure.gpio_pin = gpio_pin_7;
Gpio_initstructure.gpio_speed = gpio_speed_50mhz;
Gpio_initstructure.gpio_mode = gpio_mode_ipu;
Gpio_init (gpioc, & gpio_initstructure );

Gpio_initstructure.gpio_pin = gpio_pin_15;
Gpio_initstructure.gpio_speed = gpio_speed_50mhz;
Gpio_initstructure.gpio_mode = gpio_mode_out_pp;
Gpio_init (gpiob, & gpio_initstructure );
}
/*************************************** **************************************** ***********
* Function name: delay_ad
* Function description:
* Parameter: Parameter Name: input/output? Type description
*
* Return value:
* Author:
* Creation date:
* Global variables:
* Global static variables:
* Local static variables:
* ---------------------------------------- Modification history ------------------------------------------
* Current version: modifier: modification date:
* Modification description:
**************************************** **************************************** **********/
Void delay_ad (volatile u32 time)
{
2010i;
While (Time --)
{
For (I = 0; I <8; I ++ );
}
}

/*************************************** **************************************** ***********
* Function name: getchannelval
* Function description:
* Parameter: Parameter Name: input/output? Type description
*
* Return value:
* Author:
* Creation date:
* Global variables:
* Global static variables:
* Local static variables:
* ---------------------------------------- Modification history ------------------------------------------
* Current version: modifier: modification date:
* Modification description:
**************************************** **************************************** **********/
B2getchannelval (u8 port)
{
U8 I;
U8 ucsend = port;
2010adval = 0;

If (Port> 0x0f)
Return 0;
Delay_active (600 );
Tlc2543_sck_l;
Delay_ad (6 );
Tlc2543_cs_l;
Delay_ad (6 );
Ucsend <= 4;
For (I = 0; I <12; I ++)

{

If (tlc2543_so_read )! = 0)
Adval | = 1; // table [I];
Else
Adval | = 0;

If (ucsend & 0x80 )! = 0)
Tlc2543_si_h;
Else
Tlc2543_si_l;
Delay_ad (6 );
Tlc2543_sck_h;
Delay_ad (6 );
Tlc2543_sck_l;

Ucsend <= 1;
Adval <= 1;
}

Delay_ad (6 );
Tlc2543_cs_h;
Adval> = 1;
Return (adval );
}

/*************************************** **************************************** ***********
* Function name: read2543
* Function description:
* Parameter: Parameter Name: input/output? Type description
*
* Return value:
* Author:
* Creation date:
* Global variables:
* Global static variables:
* Local static variables:
* ---------------------------------------- Modification history ------------------------------------------
* Current version: modifier: modification date:
* Modification description:
**************************************** **************************************** **********/
Extern 2010alogval [11];
Void read2543 (void)
{
2010i;
For (I = 0; I <12; I ++)
{
Alogval [I] = getchannelval (I );
Invalid ickdelay (50 );
}
}
/*************************************** **************************************** ***********
* Function name: calc_ad_value
* Function Description: Computing of data collected by AD
* Parameter: Parameter Name: input/output? Type description
* Ch --- ad channel N --- partial pressure multiple
* Return value:
* Author:
* Creation date:
* Global variables:
* Global static variables:
* Local static variables:
* ---------------------------------------- Modification history ------------------------------------------
* Current version: V2 modifier: zds modification date:
* Modification description:
**************************************** **************************************** **********/
2010calc_ad_value (u8 CH, u8 N)
{
2010ad;
U8 Buf [4];
Float VDC;
2010i;

Buf [3] = (u8) (alogval [CH] % 10) + 0x30;
Alogval [CH] = alogval [CH]/10;
 
Buf [2] = (u8) (alogval [CH] % 10) + 0x30;
Alogval [CH] = alogval [CH]/10;

Buf [1] = (u8) (alogval [CH] % 10) + 0x30;
Alogval [CH] = alogval [CH]/10;

Buf [0] = (u8) (alogval [CH] % 10) + 0x30;
Alogval [CH] = alogval [CH]/10;

AD = atoi (BUF );
VDC = N * 5 * Ad/4096.0;
I = VDC * 100;
Return I;
}