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63 lines
1.8 KiB
63 lines
1.8 KiB
#include "MaxHandler.h"
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void Max_Init(uint8_t ch,uint8_t initMode) {
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sSPI_select(ch);
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sSPI_write_byte(0x80);
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if (initMode == AutoConversion)
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sSPI_write_byte((1<<7)|(1<<5)|(1<<0)); //Auto conversion + OC 33ms detection + 50hz rejection
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else if (initMode == OneShotConversion)
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sSPI_write_byte((1<<6)|(1<<5)|(1<<0)); //OneShot conversion + OC 33ms detection + 50hz rejection
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else
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sSPI_write_byte((1<<5)|(1<<0)); //OC 33ms detection + 50hz rejection
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sSPI_write_byte(0b0011|(0b0011<<4)); //TC type K + 8 samples
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sSPI_free();
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uint8_t i = 0;
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if (ch < THERMO_CHN_COUNT) {
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i = ch;
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++ch;
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}
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for (; i < ch; i++) {
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ThermoSensor[i].lastTick = System_GetSysTick();
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ThermoSensor[i].state = 4; //Set NO_DATA error
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ThermoSensor[i].captureFlags = initMode;
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}
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}
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uint8_t IsMaxDRDYLow(uint8_t ch) {
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if (ch > THERMO_CHN_COUNT-1) ch = THERMO_CHN_COUNT-1;
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if ( ( RSLink_DipsRead() & (1<<(4+ch)) ) == 0) return 1;
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return 0;
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}
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void Max_Handler(){
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ThermoData *Selected = &ThermoSensor[MaxSelectedChannel];
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//If conversion ready or 5s timeout
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if ((IsMaxDRDYLow(MaxSelectedChannel) || (System_GetSysTickDifference(Selected->lastTick)>2000)) && Selected->captureFlags != 0) {
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sSPI_select(MaxSelectedChannel);
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Selected->lastTick = System_GetSysTick();
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sSPI_write_byte(0x0A);
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Selected->CJTemp = (uint16_t)sSPI_read_byte()<<8;
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Selected->CJTemp |= sSPI_read_byte();
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Selected->Temperature = (uint32_t)sSPI_read_byte()<<11;
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Selected->Temperature |= (uint32_t)sSPI_read_byte()<<3;
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Selected->Temperature |= (uint32_t)sSPI_read_byte()>>5;
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Selected->state = sSPI_read_byte()&(~4);
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sSPI_free();
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if ((Selected->captureFlags & OneShotConversion) != 0){
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Selected->captureFlags &= ~(OneShotConversion);
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}
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}
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MaxSelectedChannel++;
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if (MaxSelectedChannel == THERMO_CHN_COUNT) MaxSelectedChannel = 0;
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}
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