Super Vision
/
sv_usb_firmware
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Dependencies: MODSERIAL USBDevice_for_Rev_C_HW mbed
Fork of
mbed_sv_firmware_with_init
by 
Bob Recny
Diff: main.cpp
- Revision:
- 23:52504c8f63c5
- Parent:
- 22:5707b236cbdb
- Child:
- 24:41e424031aba
--- a/main.cpp Fri Jun 05 01:52:30 2015 +0000
+++ b/main.cpp Tue Jun 16 23:03:29 2015 +0000
@@ -240,9 +240,9 @@
// Factory test should initialize the EEPROM
//
// First two bytes of bank zero will be "SV" if programmed.
- // Bank 0x10 holds Manufacturer string
- // Bank 0x40 holds Serial Number string
- // Bank 0x70 holds Product Description string
+ // Address 0x10 holds Manufacturer string
+ // Address 0x40 holds Serial Number string
+ // Address 0x70 holds Product Description string
i2c_page = EEPROM | 0 << 1; // set EEPROM page = bank 0
i2c.write(i2c_page, &temploc, 1, 1); // i2c address+bank 0, memory index, 1 byte (just index), no stop at end.
@@ -700,6 +700,31 @@
}
/**
+ * @name clrcdctx
+ * @brief Clear CDC TX buffer
+ *
+ * @returns [none]
+ */
+void clrcdctx(void)
+{
+ for (i = 0; i < sizeof(cdc_buffer_tx); i++){
+ cdc_buffer_tx[i] = 0x00; // clear CDC tx buffer
+ }
+}
+
+/**
+ * @name clrcdcrx
+ * @brief Clear CDC RX buffer
+ *
+ * @returns [none]
+ */
+void clrcdcrx(void)
+{
+ for (i = 0; i < sizeof(cdc_buffer_rx); i++){
+ cdc_buffer_rx[i] = 0x00; // clear CDC tx buffer
+ }
+}
+/**
* @name main
* @brief Main firmware loop
*
@@ -720,6 +745,9 @@
while(1) { // main loop
led_com.write(led_com_state); // turn off communication LED unless it was specifically turned on by GPIO command
if (prox_irq_state == 1) { // process the proximity interrupt
+ clrcdctx();
+
+
if (prox_irq_msg[0] != 0xBB){ // no message to send to RFID
cdc_buffer_tx[0] = 0xFF; // just send a dummy message back to the host
cdc_buffer_tx[1] = 0x7E;
@@ -741,6 +769,7 @@
}
if (uart.readable()) { // message availalbe from rfid (all responses (0x01) and broadcast (0x02))
+ clrcdctx();
int rfid_len = 0;
led_com.write(LEDON);
for (i = 0; i < (RFIDLENLOW); i++) { // Get first part of message to find out total count
@@ -758,7 +787,7 @@
}
if (usb_irq_state == 1) { // message available from PC
usb_irq_state = 0; // allow another USB interrupt
-
+ clrcdcrx(); // clear cdc RX buffer
for (i = 0; i < sizeof(cdc_buffer_rx); i++) {
if (cdc.readable()) cdc_buffer_rx[i] = cdc._getc(); // read data from USB side
}
@@ -777,6 +806,9 @@
}
switch(cdc_buffer_rx[0]) { // check first byte for "destination"
+ case 0xAA: // RFID-FE Firmware Update
+
+ break;
case 0xBB: // RFID-FE
for (i = 0; i < sizeof(cdc_buffer_rx); i++) {
uart_buffer_tx[i] = cdc_buffer_rx[i]; // copy USB message to UART for RFID
@@ -786,6 +818,7 @@
break;
case 0xCC: // Proximity Sensor
+ clrcdctx();
led_com.write(LEDON);
for (i = 0; i < sizeof(cdc_buffer_rx); i++) {
i2c_buffer[i] = cdc_buffer_rx[i]; // copy USB message to buffer for I2C
@@ -815,6 +848,7 @@
break;
case 0xDD: // GPIO (LEDs and RFID-FE control)
+ clrcdctx();
led_com.write(LEDON);
for (i = 0; i < sizeof(cdc_buffer_rx); i++) {
gpio_buffer[i] = cdc_buffer_rx[i]; // copy USB message to buffer for GPIO
@@ -843,6 +877,7 @@
break;
case 0xEE: // Read/write EEPROM
+ clrcdctx();
led_com.write(LEDON);
for (i = 0; i < sizeof(cdc_buffer_rx); i++) {
i2c_buffer[i] = cdc_buffer_rx[i]; // copy USB message to buffer for I2C
@@ -853,7 +888,7 @@
else if (i2c_buffer[1] == 0) // I2C write = 0
status = eeprom_msg_wr(); // send buffer to EEPROM and get response
- if (status) led_err.write(LEDON);
+ //if (status) led_err.write(LEDON);
em_pos = 0;
for (i = 0; i < sizeof(cdc_buffer_tx); i++) {
@@ -872,21 +907,22 @@
break;
case 0xFF:
- if (cdc_buffer_rx[1] > 0){
+ clrcdctx();
+ if (cdc_buffer_rx[1] > 0){ // FF, 01, 7E, 0F, F0 = read message from EEPROM and turn on prox IRQ
// read message sent to RFID on interrupt
temploc = 0x12;
- i2c.write(i2c_addr, &temploc, 1, 1); // i2c address+bank 0, RFID message size location, 1 byte, no stop at end
- i2c.read(i2c_addr, &msgcount, 1, 0); // i2c address+bank 0, RFID message size, 1 byte, stop at end
+ i2c.write(i2c_addr, &temploc, 1, 1); // i2c address+bank 2, RFID message size location, 1 byte, no stop at end
+ i2c.read(i2c_addr, &msgcount, 1, 0); // i2c address+bank 2, RFID message size, 1 byte, stop at end
msgcount += 6; // get the real size
temploc = 0x10;
- i2c.write(i2c_addr, &temploc, 1, 1); // i2c address+bank 0, RFID message location, 1 byte, no stop at end
- i2c.read(i2c_addr, prox_irq_msg, msgcount, 0); // i2c address+bank 0, description string, string size, stop at end
+ i2c.write(i2c_addr, &temploc, 1, 1); // i2c address+bank 2, RFID message location, 1 byte, no stop at end
+ i2c.read(i2c_addr, prox_irq_msg, msgcount, 0); // i2c address+bank 2, description string, string size, stop at end
autorange[2] = 0x03;
i2c.write(PROX, autorange, 3, 0); // Start contonuous proximity range read
}
- else {
+ else { // FF, 00, 7E, 0F, F0 = turn off prox irq
prox_irq_msg[0] = 0xFF; // clear first byte
autorange[2] = 0x00;
i2c.write(PROX, autorange, 3, 0); // Stop range read
@@ -895,7 +931,7 @@
break;
default:
led_err.write(LEDON); // we should never get here
- while(1); // halt!
+ //while(1); // halt!
}
}
led_com.write(led_com_state);