therm Changeset - 15c6a608a780 · protofusion repositories

Changeset - 15c6a608a780

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Ethan Zonca - 10 years ago 2014-08-23 21:13:21
ez@ethanzonca.com

Somehow temp is working

1 file changed with 31 insertions and 25 deletions:

main.c

0 comments (0 inline, 0 general)

main.c

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@@ @@ -29,14 +29,14 @@ uint32_t packet_sent=1; @@
 uint32_t packet_receive=1;
-char* itoa(int32_t i, char b[]){
+char* itoa(int16_t i, char b[]){
     char const digit[] = "0123456789";
     char* p = b;
     if(i<0){
         *p++ = '-';
         i *= -1;
+    }
-    int shifter = i;
+    uint16_t shifter = i;
     do{ //Move to where representation ends
         ++p;
         shifter = shifter/10;
@@ @@ -147,6 +147,7 @@ int32_t p = 1; @@
 int32_t i = 1;
 int32_t d = 1;
 // Process things
 void process()
+{
@@ @@ -155,18 +156,38 @@ void process() @@
     Delay(1);
     // This may not clock at all... might need to send 16 bits first
     SPI_I2S_SendData(SPI2, 0xAA); // send dummy data
     SPI_I2S_SendData(SPI2, 0xAA); // send dummy data
     uint16_t temp1 = SPI_I2S_ReceiveData(SPI2);
     SPI_I2S_SendData(SPI2, 0xAAAA); // send dummy data
 //    SPI_I2S_SendData(SPI2, 0xAA); // send dummy data
 //    SPI_I2S_SendData(SPI2, 0xAA); // send dummy data
     uint16_t temp2 = 0;//SPI_I2S_ReceiveData(SPI2);
     uint16_t temp_pre = SPI_I2S_ReceiveData(SPI2);
     if(temp_pre & 0b0000000000000010) {
         ssd1306_DrawString("Fatal Error", 3, 35);
+    }
     else if(temp_pre & 0b0000000000000001) {
         ssd1306_DrawString("TC Fault", 3, 35);
+    }
     else {
         ssd1306_DrawString("OK         ", 3, 35);
+    }
     uint8_t sign = temp >> 15;// top bit is sign
     temp_pre = temp_pre >> 2; // Drop 2 lowest bits
     int16_t temp = 0;
     if(sign) {
         temp = -temp_pre;
+    }
     else {
         temp = temp_pre;
+    }
     // Deassert CS
     Delay(1);
     GPIO_SetBits(MAX_CS);
     int32_t temp = (temp1 << 16) | temp2;
     //////////////////////////
     // Calc internal temp   //
@@ @@ -186,29 +207,14 @@ void process() @@
     //////////////////////////
     // Calc external temp   //
     //////////////////////////
     if(temp & 0x7) {
         // Something is wrong...
         ssd1306_DrawString("!TempCOMMS", 3, 35);
+    }
     if(temp & 0x80000000) {
         // Negative value, drop the lower 18 bits and explicitly extend sign bits
         temp = 0xFFFFC000 | ((temp >> 18) & 0x00003FFFF);
+    }
     else {
         // Positive value, just drop lower 18
         temp >>= 18;
+    }
     double temp_centigrade = temp;
     if(temp > 0) {
         GPIO_SetBits(LED_STAT);
+    }
     char tempstr[9];
-    itoa(temp, tempstr);
+    itoa(temp_pre, tempstr);
     ssd1306_DrawString("Temp: ", 1, 40);
     ssd1306_DrawString("    ", 1, 70);
     ssd1306_DrawString(tempstr, 1, 70);
 /*

0 comments (0 inline, 0 general)