Diff: DeviceSSP.c

Revision:

198:78dd6d14d108

Parent:

197:7a05523bf588

--- a/DeviceSSP.c	Wed Oct 19 10:55:05 2016 +0000
+++ /dev/null	Thu Jan 01 00:00:00 1970 +0000
@@ -1,116 +0,0 @@
-#include "Device.h"
-
-#define SSPCR1_SSE       0x00000002
-
-#define TX_SSP_EMPT      0x00000001
-#define RX_SSP_notEMPT   0x00000004
-#define TX_SSP_notFULL   0x00000002
-#define RX_SSP_FULL      0x00000008
-#define SSP_BUSY         0x00000010
-
-#define ADC_ERR_MSK      0x00000001
-#define DAC_ERR_MSK      0x00000002
-
-extern Device device;
-
-void InitSSPDefaultSettings(void){
-}
-
-void InitSSPState(void){
-}
-
-void DeviceStartSSP(void){
-  uint32_t Dummy;
-  
-  LPC_SC->PCONP |= (1<<21); //Power on SSP0
-
-  /* выбор частоты для переферии используем по умолчания с делителем основной на 4 */
-  LPC_SC->PCLKSEL1 &= ~(0x3<<10);  //00 CLK/4; 1 CLK; 2 CLK/2; 3 CLK/8
-  LPC_SC->PCLKSEL1 |= (0x0<<10);   //00 CLK/4; 1 CLK; 2 CLK/2; 3 CLK/
-
-  // P0.15~0.18 as SSP0 
-  LPC_PINCON->PINSEL0 &= ~(0x3UL<<30);  //установит Р 0.15 
-  LPC_PINCON->PINSEL0 |=  (0x2UL<<30);  //частота для синхронизациии Master - slave
-
-  LPC_PINCON->PINSEL1 &= ~((0x3<<0)|(0x3<<2)|(0x3<<4)); // устанивоить   Р 0.17    и   Р 0.18
-  LPC_PINCON->PINSEL1 |=  ((0x2<<2)|(0x2<<4));          //    как         MISO0    и    MOSI0
-
-  LPC_PINCON->PINMODE0 &= ~(0x3UL<<30);// ?  установление на Р 0.15 режима On-Chip pull-down resistor enabled
-  LPC_PINCON->PINMODE0 |=  (0x3UL<<30);// ?  установление на Р 0.15 режима On-Chip pull-down resistor enabled
-
-  LPC_PINCON->PINMODE1 &= ~((0x3<<2)|(0x3<<4));// ?  установление на Р 0.17 и Р 0.18 режима On-Chip pull-down resistor enabled
-  LPC_PINCON->PINMODE1 |=  ((0x3<<2)|(0x3<<4));// ?  установление на Р 0.17 и Р 0.18 режима On-Chip pull-down resistor enabled
-
-  LPC_SSP0->CR0 = ((3<<8)|(0<<7)|(0<<4) |0xF); // (0xF)-установление DSS(Data sise select) в 16-битный формат, (3<<8 scr - выбор частоты), 
-                                               //   низкий уровень линии тактирования между кадрами, прикрепление передачи к первому нарастанию тактового мигнала
-                                               //    формат кадра TI.
-   
-  /* SSPCPSR clock prescale register, master mode, minimum divisor is 0x02 */
-  LPC_SSP0->CPSR = 0x2;   // freq = CLK/(cpsdvr*(scr+1)) = 1.6 MHz
- 
-  /*SSP enable, master mode     */
-  LPC_SSP0->CR1 = SSPCR1_SSE;
-  while (LPC_SSP0->SR & SSP_BUSY); //wait until busy
-  while (LPC_SSP0->SR & RX_SSP_notEMPT)  /* clear the RxFIFO */
-    Dummy = LPC_SSP0->DR;       
-  //all pins after reset is in GPIO mode, so CS pins needn't to configure
-  LPC_GPIO0->FIODIR |= (1<<16);      // P0.16 defined as CS for ADC
-  LPC_GPIO0->FIOSET |= (1<<16);      // set CS for ADC
-
-  LPC_GPIO0->FIODIR |= (1<<23);       // P defined as CS for DAC
-  LPC_GPIO0->FIOCLR |= (1<<23);       // set CS for DAC 
-  while (LPC_SSP1->SR & RX_SSP_notEMPT)
-    Dummy = LPC_SSP1->DR;   /* clear the RxFIFO */
-}
-
-void sspReceive(void){
-  //Prepare ADCs for sampling
-  LPC_GPIO0->FIOCLR = 1<<16; //reset SSEL signal for ADCs
-  //Start ADCs sampling
-  LPC_GPIO0->FIOSET = 1<<16; //set SSEL signal for ADCs
-  //Get samples
-  
-  device.controller.SSP.in[4] += LPC_SSP0->DR;
-  device.controller.SSP.in[3] += LPC_SSP0->DR;
-  device.controller.SSP.in[2] += LPC_SSP0->DR;
-  device.controller.SSP.in[1] += LPC_SSP0->DR;
-  device.controller.SSP.in[0] += LPC_SSP0->DR;
-  
-  /*
-  device.controller.SSP.accumulator[4] += LPC_SSP0->DR;
-  device.controller.SSP.accumulator[3] += LPC_SSP0->DR;
-  device.controller.SSP.accumulator[2] += LPC_SSP0->DR;
-  device.controller.SSP.accumulator[1] += LPC_SSP0->DR;
-  device.controller.SSP.accumulator[0] += LPC_SSP0->DR;
-  */
-  
-  //Clear input queue
-  uint32_t value;
-  while (LPC_SSP0->SR & 0x00000004) value = LPC_SSP0->DR;
-  /*
-  //Average samples for dither period
-  if (device.measurement.counter == 31) {
-    for (uint8_t i = 0; i < 5; i++){
-      device.controller.SSP.in[i] = device.controller.SSP.accumulator[i] >> 5;
-      device.controller.SSP.accumulator[i] = 0;
-    }
-  }
-  */
-}
-
-void sspTransmit(uint8_t index){
-  LPC_GPIO0->FIOSET = 1<<23; //set SSEL signal for DACs
-  LPC_GPIO0->FIOCLR = 1<<23; //reset SSEL signal for DACs
-  
-  LPC_SSP0->DR=0x5555;
-  LPC_SSP0->DR=0x5555;
-  LPC_SSP0->DR=0x5555;
-
-  if (index){
-    LPC_SSP0->DR = 0x00000030; //Write DAC0
-    LPC_SSP0->DR = device.controller.SSP.out[0];
-  } else {
-    LPC_SSP0->DR = 0x00000031; //Write DAC1
-    LPC_SSP0->DR = device.controller.SSP.out[1];
-  }
-}
\ No newline at end of file