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Add HardwareSerial setRX(pin) & setTX(pin)

main
PaulStoffregen 8 years ago
parent
aaebae7728
commit
e3989b19f3
4 changed files with 176 additions and 2 deletions
Split View Show Diff Stats
  1. +12
    -0
      teensy3/HardwareSerial.h
  2. +62
    -2
      teensy3/serial1.c
  3. +51
    -0
      teensy3/serial2.c
  4. +51
    -0
      teensy3/serial3.c

+ 12
- 0
teensy3/HardwareSerial.h View File

@@ -113,6 +113,8 @@ void serial_begin(uint32_t divisor);
void serial_format(uint32_t format);
void serial_end(void);
void serial_set_transmit_pin(uint8_t pin);
void serial_set_rx(uint8_t pin);
void serial_set_tx(uint8_t pin);
int serial_set_rts(uint8_t pin);
int serial_set_cts(uint8_t pin);
void serial_putchar(uint32_t c);
@@ -132,6 +134,8 @@ void serial2_begin(uint32_t divisor);
void serial2_format(uint32_t format);
void serial2_end(void);
void serial2_set_transmit_pin(uint8_t pin);
void serial2_set_rx(uint8_t pin);
void serial2_set_tx(uint8_t pin);
int serial2_set_rts(uint8_t pin);
int serial2_set_cts(uint8_t pin);
void serial2_putchar(uint32_t c);
@@ -147,6 +151,8 @@ void serial3_begin(uint32_t divisor);
void serial3_format(uint32_t format);
void serial3_end(void);
void serial3_set_transmit_pin(uint8_t pin);
void serial3_set_rx(uint8_t pin);
void serial3_set_tx(uint8_t pin);
int serial3_set_rts(uint8_t pin);
int serial3_set_cts(uint8_t pin);
void serial3_putchar(uint32_t c);
@@ -176,6 +182,8 @@ public:
serial_format(format); }
virtual void end(void) { serial_end(); }
virtual void transmitterEnable(uint8_t pin) { serial_set_transmit_pin(pin); }
virtual void setRX(uint8_t pin) { serial_set_rx(pin); }
virtual void setTX(uint8_t pin) { serial_set_tx(pin); }
virtual bool attachRts(uint8_t pin) { return serial_set_rts(pin); }
virtual bool attachCts(uint8_t pin) { return serial_set_cts(pin); }
virtual int available(void) { return serial_available(); }
@@ -209,6 +217,8 @@ public:
serial2_format(format); }
virtual void end(void) { serial2_end(); }
virtual void transmitterEnable(uint8_t pin) { serial2_set_transmit_pin(pin); }
virtual void setRX(uint8_t pin) { serial2_set_rx(pin); }
virtual void setTX(uint8_t pin) { serial2_set_tx(pin); }
virtual bool attachRts(uint8_t pin) { return serial2_set_rts(pin); }
virtual bool attachCts(uint8_t pin) { return serial2_set_cts(pin); }
virtual int available(void) { return serial2_available(); }
@@ -242,6 +252,8 @@ public:
serial3_format(format); }
virtual void end(void) { serial3_end(); }
virtual void transmitterEnable(uint8_t pin) { serial3_set_transmit_pin(pin); }
virtual void setRX(uint8_t pin) { serial3_set_rx(pin); }
virtual void setTX(uint8_t pin) { serial3_set_tx(pin); }
virtual bool attachRts(uint8_t pin) { return serial3_set_rts(pin); }
virtual bool attachCts(uint8_t pin) { return serial3_set_cts(pin); }
virtual int available(void) { return serial3_available(); }

+ 62
- 2
teensy3/serial1.c View File

@@ -89,6 +89,8 @@ static volatile uint16_t rx_buffer_tail = 0;
static volatile uint8_t rx_buffer_head = 0;
static volatile uint8_t rx_buffer_tail = 0;
#endif
static uint8_t rx_pin_num = 0;
static uint8_t tx_pin_num = 1;

// UART0 and UART1 are clocked by F_CPU, UART2 is clocked by F_BUS
// UART0 has 8 byte fifo, UART1 and UART2 have 1 byte buffer
@@ -110,8 +112,20 @@ void serial_begin(uint32_t divisor)
tx_buffer_head = 0;
tx_buffer_tail = 0;
transmitting = 0;
CORE_PIN0_CONFIG = PORT_PCR_PE | PORT_PCR_PS | PORT_PCR_PFE | PORT_PCR_MUX(3);
CORE_PIN1_CONFIG = PORT_PCR_DSE | PORT_PCR_SRE | PORT_PCR_MUX(3);
switch (rx_pin_num) {
case 0: CORE_PIN0_CONFIG = PORT_PCR_PE | PORT_PCR_PS | PORT_PCR_PFE | PORT_PCR_MUX(3); break;
case 21: CORE_PIN21_CONFIG = PORT_PCR_PE | PORT_PCR_PS | PORT_PCR_PFE | PORT_PCR_MUX(3); break;
#if defined(KINETISL)
case 3: CORE_PIN3_CONFIG = PORT_PCR_PE | PORT_PCR_PS | PORT_PCR_PFE | PORT_PCR_MUX(2); break;
#endif
}
switch (tx_pin_num) {
case 1: CORE_PIN1_CONFIG = PORT_PCR_DSE | PORT_PCR_SRE | PORT_PCR_MUX(3); break;
case 5: CORE_PIN5_CONFIG = PORT_PCR_DSE | PORT_PCR_SRE | PORT_PCR_MUX(3); break;
#if defined(KINETISL)
case 4: CORE_PIN4_CONFIG = PORT_PCR_DSE | PORT_PCR_SRE | PORT_PCR_MUX(2); break;
#endif
}
#if defined(HAS_KINETISK_UART0)
UART0_BDH = (divisor >> 13) & 0x1F;
UART0_BDL = (divisor >> 5) & 0xFF;
@@ -182,6 +196,52 @@ void serial_set_transmit_pin(uint8_t pin)
#endif
}

void serial_set_tx(uint8_t pin)
{
if (pin == tx_pin_num) return;
if ((SIM_SCGC4 & SIM_SCGC4_UART0)) {
switch (tx_pin_num) {
case 1: CORE_PIN1_CONFIG = 0; break; // PTB17
case 5: CORE_PIN5_CONFIG = 0; break; // PTD7
#if defined(KINETISL)
case 4: CORE_PIN4_CONFIG = 0; break; // PTA2
#endif
}
switch (pin) {
case 1: CORE_PIN1_CONFIG = PORT_PCR_DSE | PORT_PCR_SRE | PORT_PCR_MUX(3); break;
case 5: CORE_PIN5_CONFIG = PORT_PCR_DSE | PORT_PCR_SRE | PORT_PCR_MUX(3); break;
#if defined(KINETISL)
case 4: CORE_PIN4_CONFIG = PORT_PCR_DSE | PORT_PCR_SRE | PORT_PCR_MUX(2); break;
#endif
}
}
tx_pin_num = pin;
}

void serial_set_rx(uint8_t pin)
{
if (pin == rx_pin_num) return;
if ((SIM_SCGC4 & SIM_SCGC4_UART0)) {
switch (rx_pin_num) {
case 0: CORE_PIN0_CONFIG = 0; break; // PTB16
case 21: CORE_PIN21_CONFIG = 0; break; // PTD6
#if defined(KINETISL)
case 3: CORE_PIN3_CONFIG = 0; break; // PTA1
#endif
}
switch (pin) {
case 0: CORE_PIN0_CONFIG = PORT_PCR_PE | PORT_PCR_PS | PORT_PCR_PFE | PORT_PCR_MUX(3); break;
case 21: CORE_PIN21_CONFIG = PORT_PCR_PE | PORT_PCR_PS | PORT_PCR_PFE | PORT_PCR_MUX(3); break;
#if defined(KINETISL)
case 3: CORE_PIN3_CONFIG = PORT_PCR_PE | PORT_PCR_PS | PORT_PCR_PFE | PORT_PCR_MUX(2); break;
#endif
}
}
rx_pin_num = pin;
}



int serial_set_rts(uint8_t pin)
{
if (!(SIM_SCGC4 & SIM_SCGC4_UART0)) return 0;

+ 51
- 0
teensy3/serial2.c View File

@@ -88,6 +88,10 @@ static volatile uint16_t rx_buffer_tail = 0;
static volatile uint8_t rx_buffer_head = 0;
static volatile uint8_t rx_buffer_tail = 0;
#endif
#if defined(KINETISK)
static uint8_t rx_pin_num = 9;
static uint8_t tx_pin_num = 10;
#endif

// UART0 and UART1 are clocked by F_CPU, UART2 is clocked by F_BUS
// UART0 has 8 byte fifo, UART1 and UART2 have 1 byte buffer
@@ -109,8 +113,19 @@ void serial2_begin(uint32_t divisor)
tx_buffer_head = 0;
tx_buffer_tail = 0;
transmitting = 0;
#if defined(KINETISK)
switch (rx_pin_num) {
case 9: CORE_PIN9_CONFIG = PORT_PCR_PE | PORT_PCR_PS | PORT_PCR_PFE | PORT_PCR_MUX(3); break;
case 26: CORE_PIN26_CONFIG = PORT_PCR_PE | PORT_PCR_PS | PORT_PCR_PFE | PORT_PCR_MUX(3); break;
}
switch (tx_pin_num) {
case 10: CORE_PIN10_CONFIG = PORT_PCR_DSE | PORT_PCR_SRE | PORT_PCR_MUX(3); break;
case 31: CORE_PIN31_CONFIG = PORT_PCR_DSE | PORT_PCR_SRE | PORT_PCR_MUX(3); break;
}
#elif defined(KINETISL)
CORE_PIN9_CONFIG = PORT_PCR_PE | PORT_PCR_PS | PORT_PCR_PFE | PORT_PCR_MUX(3);
CORE_PIN10_CONFIG = PORT_PCR_DSE | PORT_PCR_SRE | PORT_PCR_MUX(3);
#endif
#if defined(HAS_KINETISK_UART1)
UART1_BDH = (divisor >> 13) & 0x1F;
UART1_BDL = (divisor >> 5) & 0xFF;
@@ -187,6 +202,42 @@ void serial2_set_transmit_pin(uint8_t pin)
#endif
}

void serial2_set_tx(uint8_t pin)
{
#if defined(KINETISK)
if (pin == tx_pin_num) return;
if ((SIM_SCGC4 & SIM_SCGC4_UART2)) {
switch (tx_pin_num) {
case 10: CORE_PIN10_CONFIG = 0; break; // PTC4
case 31: CORE_PIN31_CONFIG = 0; break; // PTE0
}
switch (pin) {
case 10: CORE_PIN10_CONFIG = PORT_PCR_DSE | PORT_PCR_SRE | PORT_PCR_MUX(3); break;
case 31: CORE_PIN31_CONFIG = PORT_PCR_DSE | PORT_PCR_SRE | PORT_PCR_MUX(3); break;
}
}
tx_pin_num = pin;
#endif
}

void serial2_set_rx(uint8_t pin)
{
#if defined(KINETISK)
if (pin == rx_pin_num) return;
if ((SIM_SCGC4 & SIM_SCGC4_UART2)) {
switch (rx_pin_num) {
case 9: CORE_PIN9_CONFIG = 0; break; // PTC3
case 26: CORE_PIN26_CONFIG = 0; break; // PTE1
}
switch (pin) {
case 9: CORE_PIN9_CONFIG = PORT_PCR_PE | PORT_PCR_PS | PORT_PCR_PFE | PORT_PCR_MUX(3); break;
case 26: CORE_PIN26_CONFIG = PORT_PCR_PE | PORT_PCR_PS | PORT_PCR_PFE | PORT_PCR_MUX(3); break;
}
}
rx_pin_num = pin;
#endif
}

int serial2_set_rts(uint8_t pin)
{
if (!(SIM_SCGC4 & SIM_SCGC4_UART1)) return 0;

+ 51
- 0
teensy3/serial3.c View File

@@ -89,6 +89,10 @@ static volatile uint16_t rx_buffer_tail = 0;
static volatile uint8_t rx_buffer_head = 0;
static volatile uint8_t rx_buffer_tail = 0;
#endif
#if defined(KINETISL)
static uint8_t rx_pin_num = 7;
static uint8_t tx_pin_num = 8;
#endif

// UART0 and UART1 are clocked by F_CPU, UART2 is clocked by F_BUS
// UART0 has 8 byte fifo, UART1 and UART2 have 1 byte buffer
@@ -106,8 +110,19 @@ void serial3_begin(uint32_t divisor)
tx_buffer_head = 0;
tx_buffer_tail = 0;
transmitting = 0;
#if defined(KINETISK)
CORE_PIN7_CONFIG = PORT_PCR_PE | PORT_PCR_PS | PORT_PCR_PFE | PORT_PCR_MUX(3);
CORE_PIN8_CONFIG = PORT_PCR_DSE | PORT_PCR_SRE | PORT_PCR_MUX(3);
#elif defined(KINETISL)
switch (rx_pin_num) {
case 7: CORE_PIN7_CONFIG = PORT_PCR_PE | PORT_PCR_PS | PORT_PCR_PFE | PORT_PCR_MUX(3); break;
case 6: CORE_PIN6_CONFIG = PORT_PCR_PE | PORT_PCR_PS | PORT_PCR_PFE | PORT_PCR_MUX(3); break;
}
switch (tx_pin_num) {
case 8: CORE_PIN8_CONFIG = PORT_PCR_DSE | PORT_PCR_SRE | PORT_PCR_MUX(3); break;
case 20: CORE_PIN20_CONFIG = PORT_PCR_DSE | PORT_PCR_SRE | PORT_PCR_MUX(3); break;
}
#endif
#if defined(HAS_KINETISK_UART2)
UART2_BDH = (divisor >> 13) & 0x1F;
UART2_BDL = (divisor >> 5) & 0xFF;
@@ -171,6 +186,42 @@ void serial3_set_transmit_pin(uint8_t pin)
#endif
}

void serial3_set_tx(uint8_t pin)
{
#if defined(KINETISL)
if (pin == tx_pin_num) return;
if ((SIM_SCGC4 & SIM_SCGC4_UART2)) {
switch (tx_pin_num) {
case 8: CORE_PIN8_CONFIG = 0; break; // PTD3
case 20: CORE_PIN20_CONFIG = 0; break; // PTD5
}
switch (pin) {
case 8: CORE_PIN8_CONFIG = PORT_PCR_DSE | PORT_PCR_SRE | PORT_PCR_MUX(3); break;
case 20: CORE_PIN20_CONFIG = PORT_PCR_DSE | PORT_PCR_SRE | PORT_PCR_MUX(3); break;
}
}
tx_pin_num = pin;
#endif
}

void serial3_set_rx(uint8_t pin)
{
#if defined(KINETISL)
if (pin == rx_pin_num) return;
if ((SIM_SCGC4 & SIM_SCGC4_UART2)) {
switch (rx_pin_num) {
case 7: CORE_PIN7_CONFIG = 0; break; // PTD2
case 6: CORE_PIN6_CONFIG = 0; break; // PTD4
}
switch (pin) {
case 7: CORE_PIN7_CONFIG = PORT_PCR_PE | PORT_PCR_PS | PORT_PCR_PFE | PORT_PCR_MUX(3); break;
case 6: CORE_PIN6_CONFIG = PORT_PCR_PE | PORT_PCR_PS | PORT_PCR_PFE | PORT_PCR_MUX(3); break;
}
}
rx_pin_num = pin;
#endif
}

int serial3_set_rts(uint8_t pin)
{
if (!(SIM_SCGC4 & SIM_SCGC4_UART2)) return 0;

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