github.com/lowobservable.coax
1
0
Fork 0
mirror of https://github.com/lowobservable/coax.git synced 2026-04-28 04:55:48 +00:00
Code Issues Projects Releases Wiki Activity

Update interface1 schematic and PCB

Browse Source
This commit is contained in:
Andrew Kay
2019-10-09 20:11:05 -05:00
parent d5f38a13a8
commit 5be647b0f6
25 changed files with 41232 additions and 13949 deletions
Download Patch File Download Diff File Expand all files Collapse all files

112
interface1/firmware/CoaxTransceiver.cpp
View File

@@ -21,46 +21,46 @@
// Arduino Arduino Port Label DP8340N DP8341N
// Pin and Mask Pin Pin
// ---------|--------------|-----------------|---------|---------
// 7 | | EVEN/ODD PARITY | 18 |
// 6 | PH3 0x08 | PARITY CONTROL | 19 |
// 5 | | AUTO RESPONSE | 21 |
// 4 | PG5 0x20 | REGISTERS FULL | 22 |
// 3 | PE5 0x20 | REGISTER LOAD | 23 |
// ---------.--------------.-----------------.---------.---------
// 2 | | DATA CONTROL | | 5
// 14 | PJ1 0x02 | ERROR | | 8
// 15 | PJ0 0x01 | DATA AVAILABLE | | 10
// 16 | PH1 0x02 | REGISTER READ | | 9
// 17 | PH0 0x01 | OUTPUT CONTROL | | 11
// 18* | PD3 0x08 | RECEIVER ACTIVE | | 7
// 19 | PD2 0x04 | OUTPUT ENABLE | | 13
// ---------.--------------.-----------------.---------.---------
// 22 | PA0 | D11 | 1 | 23
// 23 | PA1 | D10 | 2 | 22
// 24 | PA2 | D9 | 3 | 21
// 25 | PA3 | D8 | 4 | 20
// 26 | PA4 | D7 | 5 | 19
// 27 | PA5 | D6 | 6 | 18
// 28 | PA6 | D5 | 7 | 17
// 29 | PA7 | D4 | 8 | 16
// 36 | PC1 | D2 | 10 | 14
// 37 | PC0 | D3 | 9 | 15
// 29 | PA7 | D4 | 8 | 16
// 28 | PA6 | D5 | 7 | 17
// 27 | PA5 | D6 | 6 | 18
// 26 | PA4 | D7 | 5 | 19
// 25 | PA3 | D8 | 4 | 20
// 24 | PA2 | D9 | 3 | 21
// 23 | PA1 | D10 | 2 | 22
// 22 | PA0 | D11 | 1 | 23
// --------- -------------- ----------------- --------- ---------
// 8 | PH5 0x20 | REGISTER LOAD | 23 |
// 9 | PH6 0x40 | REGISTERS FULL | 22 |
// 10 | | AUTO RESPONSE | 21 |
// 11 | | EVEN/ODD PARITY | 18 |
// 12 | PB6 0x40 | PARITY CONTROL | 19 |
// --------- -------------- ----------------- --------- ---------
// 18* | PD3 0x08 | RECEIVER ACTIVE | | 7
// 2 | PE4 0x10 | DATA AVAILABLE | | 10
// 3 | PE5 0x20 | ERROR | | 8
// 4 | | DATA CONTROL | | 5
// 5 | PE3 0x08 | REGISTER READ | | 9
// 6 | PH3 0x08 | OUTPUT CONTROL | | 11
// 7 | PH4 0x10 | OUTPUT ENABLE | | 13
//
// * - Interrupt capable pin
#define TX_REGISTER_LOAD_PIN 8
#define TX_REGISTERS_FULL_PIN 9
#define TX_AUTO_RESPONSE_PIN 10
#define TX_EVEN_ODD_PARITY_PIN 11
#define TX_PARITY_CONTROL_PIN 12
#define TX_EVEN_ODD_PARITY_PIN 7
#define TX_PARITY_CONTROL_PIN 6
#define TX_AUTO_RESPONSE_PIN 5
#define TX_REGISTERS_FULL_PIN 4
#define TX_REGISTER_LOAD_PIN 3
#define RX_DATA_CONTROL_PIN 2
#define RX_ERROR_PIN 14
#define RX_DATA_AVAILABLE_PIN 15
#define RX_REGISTER_READ_PIN 16
#define RX_OUTPUT_CONTROL_PIN 17
#define RX_ACTIVE_PIN 18
#define RX_DATA_AVAILABLE_PIN 2
#define RX_ERROR_PIN 3
#define RX_DATA_CONTROL_PIN 4
#define RX_REGISTER_READ_PIN 5
#define RX_OUTPUT_CONTROL_PIN 6
#define RX_OUTPUT_ENABLE_PIN 7
#define RX_OUTPUT_ENABLE_PIN 19
#define RX_STATE_DISABLED 0
#define RX_STATE_WAITING 1
@@ -164,7 +164,7 @@ static int /* ssize_t */ CoaxTransceiver::transmit(uint16_t commandWord, uint8_t
return ERROR_TX_RECEIVER_ACTIVE;
}
if ((PIND & 0x8) == 0x8) {
if (/* RECEIVER ACTIVE */ (PIND & 0x8) == 0x8) {
return ERROR_TX_RECEIVER_ACTIVE;
}
@@ -172,7 +172,7 @@ static int /* ssize_t */ CoaxTransceiver::transmit(uint16_t commandWord, uint8_t
noInterrupts();
// Disable receiver output.
PORTH &= ~0x10; // RX Output Enable - Low (Disable)
PORTD &= ~0x04; // RX Output Enable - Low (Disable)
// Configure data bus for output.
DDRA = B11111111;
@@ -182,17 +182,17 @@ static int /* ssize_t */ CoaxTransceiver::transmit(uint16_t commandWord, uint8_t
PORTC = (PINC & 0xfc) | ((commandWord >> 8) & 0x3);
PORTA = commandWord & 0xff;
PORTH &= ~0x20; // TX Register Load - Low (Load)
PORTH |= 0x20; // TX Register Load - High
PORTE &= ~0x20; // TX Register Load - Low (Load)
PORTE |= 0x20; // TX Register Load - High
// Send data - offload parity computation to DP8340.
if (dataCount > 0) {
// Enable transmitter parity calculation.
PORTB &= ~0x40; // TX Parity Control - Low
PORTH &= ~0x08; // TX Parity Control - Low
for (int index = 0; index < dataCount; index++) {
// Wait while TX Registers Full is high.
while ((PINH & 0x40) == 0x40) {
while ( (PING & 0x20) == 0x20) {
NOP;
}
@@ -201,12 +201,12 @@ static int /* ssize_t */ CoaxTransceiver::transmit(uint16_t commandWord, uint8_t
PORTC = (PINC & 0xfc) | ((data >> 6) & 0x3);
PORTA = (data << 2);
PORTH &= ~0x20; // TX Register Load - Low (Load)
PORTH |= 0x20; // TX Register Load - High
PORTE &= ~0x20; // TX Register Load - Low (Load)
PORTE |= 0x20; // TX Register Load - High
}
// Disable transmitter parity calculation.
PORTB |= 0x40; // TX Parity Control - High
PORTH |= 0x08; // TX Parity Control - High
}
// Configure data bus for input.
@@ -214,7 +214,7 @@ static int /* ssize_t */ CoaxTransceiver::transmit(uint16_t commandWord, uint8_t
DDRC = B00000000;
// Enable receiver output.
PORTH |= 0x10; // RX Output Enable - High (Enable)
PORTD |= 0x04; // RX Output Enable - High (Enable)
// Enable interrupts.
interrupts();
@@ -262,30 +262,30 @@ static void CoaxTransceiver::rxActiveInterrupt() {
rxBufferCount = 0;
do {
while ((PINE & 0x30) == 0) {
while (/* ERROR or DATA AVAILABLE */ (PINJ & 0x03) == 0) {
NOP;
}
if (/* ERROR */ (PINE & 0x20) == 0x20) {
mask = 0x20;
if (/* ERROR */ (PINJ & 0x02) == 0x02) {
mask = 0x02;
PORTH &= ~0x8; // Output Control - Low (Error)
PORTE &= ~0x8; // Register Read - Low
PORTH &= ~0x01; // Output Control - Low (Error)
PORTH &= ~0x02; // Register Read - Low
// Read and mark as error.
data = (((PINC & 0x3) | 0x80) << 8) | PINA;
PORTE |= 0x8; // Register Read - High
PORTH |= 0x8; // Output Control - High (Data)
} else if (/* DATA AVAILABLE */ (PINE & 0x10) == 0x10) {
mask = 0x10;
PORTH |= 0x02; // Register Read - High
PORTH |= 0x01; // Output Control - High (Data)
} else if (/* DATA AVAILABLE */ (PINJ & 0x01) == 0x01) {
mask = 0x01;
PORTE &= ~0x8; // Register Read - Low
PORTH &= ~0x02; // Register Read - Low
// Read.
data = ((PINC & 0x3) << 8) | PINA;
PORTE |= 0x8; // Register Read - High
PORTH |= 0x02; // Register Read - High
}
if (rxBufferCount >= rxBufferSize) {
@@ -295,10 +295,10 @@ static void CoaxTransceiver::rxActiveInterrupt() {
rxBuffer[rxBufferCount++] = data;
while ((PINE & mask) == mask) {
while ((PINJ & mask) == mask) {
NOP;
}
} while ((PIND & 0x8) == 0x8);
} while (/* RECEIVER ACTIVE */ (PIND & 0x8) == 0x8);
EXIT:
rxState = RX_STATE_RECEIVED;