temp state, debugging spi

firmware/masterchip/main.c

@@ -68,6 +68,10 @@ int __attribute__((noreturn)) main(void) {
   usbDeviceConnect();
   sei();
 
+    display_gotoyx(0,0);
+    display_puts("\nstart");
+    display_update();
+
   for(;;){
     usbPoll();
 
@@ -80,7 +84,31 @@ int __attribute__((noreturn)) main(void) {
     }
 
     SOFTTIMER(1,250) {
-      updateTemperature();
+      //updateTemperature();    
+    }
+
+    SOFTTIMER(3,100) {
+/*        uint8_t foo[4];
+        foo[0]=0x55;
+        foo[1]=0x88;
+        foo[3]=0x23;
+        spi_mst_write_read(2,foo);
+        spi_mst_start_packet();
+        spi_mst_write_read(2,foo+2);
+        spi_mst_end_packet();
+*/
+        uint16_t foo=0x3456;
+        foo=spi_master_communicate(3,5,foo);
+        display_gotoyx(0,0);
+/*        display_puthex(foo[0]);
+        display_puthex(foo[1]);
+        display_puthex(foo[2]);
+        display_puthex(foo[3]);*/
+        display_puthex((foo>>8)&0xff);
+        display_puthex((foo)&0xff);
+        display_puts("\nfoo");
+        display_update();
+
     }
 
   }

firmware/masterchip/usb.c

@@ -32,7 +32,7 @@ usbMsgLen_t usbFunctionSetup(uchar data[8]) {
     uint8_t valL =   (uint8_t)    rq->wIndex.bytes[1];
 
     uint16_t send = (valH << 8) | valL;
-    uint16_t recv = speak_raw(opcode, addr, spi_proto_needs(opcode), send);
+    uint16_t recv = spi_master_communicate(opcode, addr, send);
     
     dataBuffer[0] = (recv >> 8) & 0xff;
     dataBuffer[1] = recv & 0xff;

firmware/shared/spi.c

@@ -105,6 +105,14 @@ void spi_mst_read(uint8_t len, uint8_t *data){
 	}
 }
 
+void spi_mst_write_read(uint8_t len, uint8_t *data){
+	while(len>0){
+		SPDR = *data;
+		len--;
+		SPI_WAIT;
+		*data++ = SPDR;
+	}
+}
 
 #ifndef SPI_MASTER
 
@@ -135,10 +143,16 @@ void __attribute__((always_inline)) spi_sla_handle_packet(){
 	}
 }
 
+
+
 ISR(SPI_STC_vect){
-    SPCR &= ~(_BV(SPIE)); //disable spi interrupts
+    uint8_t a;
+    a = SPDR;
+    SPDR = ~a;
+/*    SPCR &= ~(_BV(SPIE)); //disable spi interrupts
     spi_sla_handle_packet(); 
     SPCR |= _BV(SPIE);
+   */
 }
 #endif //not SPI_MASTER
 	

firmware/shared/spi_proto.c

@@ -11,16 +11,17 @@ void talk_to_slave(uint8_t opcode, uint8_t addr, uint8_t flags)
 	write_data[0] = opcode;
 	write_data[1] = addr;
 	spi_mst_start_packet();
-	spi_mst_write(flags & SPI_WRITE_DATA? 4 : 2, write_data);
+	spi_mst_write(flags & SPI_WRITE_DATA? 4 : 3, write_data);
 	spi_mst_read(flags & SPI_READ_DATA? 2 : 0, read_data);
 	spi_mst_end_packet();
 }
 
-uint16_t speak_raw(uint8_t opcode, uint8_t number, uint8_t flags, uint16_t value)
+uint16_t spi_master_communicate(uint8_t opcode, uint8_t address, uint16_t value)
 {
+    uint8_t flags = spi_proto_needs();
 	write_data[2] = value >> 8;
 	write_data[3] = value & 0xff;
-	talk_to_slave(opcode, number, flags);
+	talk_to_slave(opcode, address, flags);
 	return (read_data[0] << 8) | read_data[1];
 }
 

firmware/shared/spi_proto.h

@@ -9,7 +9,7 @@
 #define SPI_READ_DATA 0x10
 #define SPI_NONE 0
 
-uint16_t speak_raw(uint8_t opcode, uint8_t number, uint8_t flags, uint16_t data);
+uint16_t spi_master_communicate(uint8_t opcode, uint8_t address, uint16_t value)
 
 uint8_t spi_proto_needs(uint8_t opcode);
 

firmware/slavechip/main.c

@@ -1,8 +1,8 @@
 #include "main.h"
 #include "spi.h"
 
-uint16_t foo = 16;
-uint8_t bar = 8;
+uint16_t foo = 0xfefe;
+uint8_t bar = 0xee;
 
 void baz() {