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Adding Standard TX/RX Data interface support for ADF7021 (without CLKOUT signal)

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pull/2/head
Andy CA6JAU 9 years ago
parent 7e36722b23
commit d1976f1049
6 changed files with 162 additions and 23 deletions
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31
ADF7021.cpp
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@ -73,7 +73,13 @@ void CIO::ifConf()
F_divider = floor(divider + 0.5);
ADF7021_RX_REG0 = (uint32_t) 0b0000;
ADF7021_RX_REG0 |= (uint32_t) 0b01011 << 27; // mux regulator/uart enabled/receive
#if defined(BIDIR_DATA_PIN)
ADF7021_RX_REG0 |= (uint32_t) 0b01001 << 27; // mux regulator/receive
#else
ADF7021_RX_REG0 |= (uint32_t) 0b01011 << 27; // mux regulator/uart-spi enabled/receive
#endif
ADF7021_RX_REG0 |= (uint32_t) N_divider << 19; // frequency;
ADF7021_RX_REG0 |= (uint32_t) F_divider << 4; // frequency;
@ -84,7 +90,13 @@ void CIO::ifConf()
F_divider = floor(divider + 0.5);
ADF7021_TX_REG0 = (uint32_t) 0b0000; // register 0
ADF7021_TX_REG0 |= (uint32_t) 0b01010 << 27; // mux regulator/uart enabled/transmit
#if defined(BIDIR_DATA_PIN)
ADF7021_TX_REG0 |= (uint32_t) 0b01000 << 27; // mux regulator/transmit
#else
ADF7021_TX_REG0 |= (uint32_t) 0b01010 << 27; // mux regulator/uart-spi enabled/transmit
#endif
ADF7021_TX_REG0 |= (uint32_t) N_divider << 19; // frequency;
ADF7021_TX_REG0 |= (uint32_t) F_divider << 4; // frequency;
@ -235,9 +247,15 @@ void CIO::ifConf()
//======================================================================================================================
void CIO::setTX()
{
// Send register 0 for TX operation
AD7021_control_byte = ADF7021_TX_REG0;
Send_AD7021_control();
#if defined(BIDIR_DATA_PIN)
Data_dir_out(true); // Data pin output mode
#endif
// PTT pin on
PTT_pin(HIGH);
LED_pin(LOW);
}
@ -245,11 +263,18 @@ void CIO::setTX()
//======================================================================================================================
void CIO::setRX()
{
// Delay for TX latency
delay_rx();
// Send register 0 for RX operation
AD7021_control_byte = ADF7021_RX_REG0;
Send_AD7021_control();
#if defined(BIDIR_DATA_PIN)
Data_dir_out(false); // Data pin input mode
#endif
// PTT pin off
PTT_pin(LOW);
LED_pin(HIGH);
}

3
Config.h
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@ -22,6 +22,9 @@
// Enable ADF7021 support:
#define ENABLE_ADF7021
// Bidirectional Data pin (Enable Standard TX/RX Data Interface of ADF7021)
#define BIDIR_DATA_PIN
// TCXO of the ADF7021:
// For 14.7456 MHz:
#define ADF7021_14_7456

14
IO.cpp
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@ -45,7 +45,10 @@ m_txBuffer(TX_RINGBUFFER_SIZE)
COS_pin(LOW);
DEB_pin(LOW);
#if !defined(BIDIR_DATA_PIN)
TXD_pin(LOW);
#endif
SCLK_pin(LOW);
SDATA_pin(LOW);
SLE_pin(LOW);
@ -57,10 +60,8 @@ void CIO::process()
// Switch off the transmitter if needed
if (m_txBuffer.getData() == 0U && m_tx) {
DEB_pin(LOW);
setRX();
m_tx = false;
DEB_pin(LOW);
}
if (m_rxBuffer.getData() >= 1U) {
@ -85,14 +86,19 @@ void CIO::interrupt()
return;
if(m_tx) {
DEB_pin(HIGH);
m_txBuffer.get(bit);
#if defined(BIDIR_DATA_PIN)
if(bit)
RXD_pin_write(HIGH);
else
RXD_pin_write(LOW);
#else
if(bit)
TXD_pin(HIGH);
else
TXD_pin(LOW);
#endif
} else {
if(RXD_pin())

7
IO.h
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@ -46,6 +46,9 @@ public:
void SDATA_pin(bool on);
void SLE_pin(bool on);
bool RXD_pin();
#if defined(BIDIR_DATA_PIN)
void RXD_pin_write(bool on);
#endif
void TXD_pin(bool on);
void PTT_pin(bool on);
void LED_pin(bool on);
@ -57,6 +60,10 @@ public:
void COS_pin(bool on);
void interrupt(void);
#if defined(BIDIR_DATA_PIN)
void Data_dir_out(bool dir);
#endif
// IO API
void write(uint8_t* data, uint16_t length);
uint16_t getSpace() const;

48
IOArduino.cpp
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@ -32,7 +32,7 @@
#define PIN_SLE PB8
#define PIN_RXD PB4
#define PIN_TXD PB3
#define PIN_TXRX_CLK PA15
#define PIN_CLKOUT PA15
#define PIN_LED PC13
#define PIN_DEB PB9
#define PIN_DSTAR_LED PB12
@ -51,7 +51,7 @@
#define PIN_SLE 6
#define PIN_RXD 7
#define PIN_TXD 8
#define PIN_TXRX_CLK 2 // 4 in Arduino Zero Pro
#define PIN_CLKOUT 2 // 4 in Arduino Zero Pro
#define PIN_LED 13
#define PIN_DEB 11
#define PIN_DSTAR_LED 14
@ -92,8 +92,7 @@ void CIO::Init()
pinMode(PIN_SDATA, OUTPUT);
pinMode(PIN_SLE, OUTPUT);
pinMode(PIN_RXD, INPUT);
pinMode(PIN_TXD, OUTPUT);
pinMode(PIN_TXRX_CLK, INPUT);
pinMode(PIN_CLKOUT, INPUT);
pinMode(PIN_LED, OUTPUT);
pinMode(PIN_DEB, OUTPUT);
pinMode(PIN_DSTAR_LED, OUTPUT);
@ -102,17 +101,47 @@ void CIO::Init()
pinMode(PIN_P25_LED, OUTPUT);
pinMode(PIN_PTT_LED, OUTPUT);
pinMode(PIN_COS_LED, OUTPUT);
#if defined(BIDIR_DATA_PIN)
pinMode(PIN_TXD, INPUT);
#else
pinMode(PIN_TXD, OUTPUT);
#endif
}
void CIO::startInt()
{
#if defined(BIDIR_DATA_PIN)
// TXD pin is TxRxCLK of ADF7021, standard TX/RX data interface
#if defined (__STM32F1__)
attachInterrupt(PIN_TXD, EXT_IRQHandler, RISING);
#else
attachInterrupt(digitalPinToInterrupt(PIN_TXD), EXT_IRQHandler, RISING);
#endif
#else
#if defined (__STM32F1__)
attachInterrupt(PIN_TXRX_CLK, EXT_IRQHandler, RISING);
attachInterrupt(PIN_CLKOUT, EXT_IRQHandler, RISING);
#else
attachInterrupt(digitalPinToInterrupt(PIN_TXRX_CLK), EXT_IRQHandler, RISING);
attachInterrupt(digitalPinToInterrupt(PIN_CLKOUT), EXT_IRQHandler, RISING);
#endif
#endif
}
#if defined(BIDIR_DATA_PIN)
// RXD pin is bidirectional in standard interfaces
void CIO::Data_dir_out(bool dir)
{
if(dir)
pinMode(PIN_RXD, OUTPUT);
else
pinMode(PIN_RXD, INPUT);
}
#endif
void CIO::SCLK_pin(bool on)
{
@ -134,6 +163,13 @@ bool CIO::RXD_pin()
return digitalRead(PIN_RXD) == HIGH;
}
#if defined(BIDIR_DATA_PIN)
void CIO::RXD_pin_write(bool on)
{
digitalWrite(PIN_RXD, on ? HIGH : LOW);
}
#endif
void CIO::TXD_pin(bool on)
{
digitalWrite(PIN_TXD, on ? HIGH : LOW);

82
IOSTM.cpp
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@ -39,13 +39,18 @@
#define PIN_RXD GPIO_Pin_4
#define PORT_RXD GPIOB
// TXD used in SPI Data mode of ADF7021
// TXD is TxRxCLK of ADF7021, standard TX/RX data interface
#define PIN_TXD GPIO_Pin_3
#define PORT_TXD GPIOB
#define PIN_TXD_INT GPIO_PinSource3
#define PORT_TXD_INT GPIO_PortSourceGPIOB
#define PIN_TXRX_CLK GPIO_Pin_15
#define PORT_TXRX_CLK GPIOA
#define PIN_TXRX_CLK_INT GPIO_PinSource15
#define PORT_TXRX_CLK_INT GPIO_PortSourceGPIOA
// CLKOUT used in SPI Data mode of ADF7021
#define PIN_CLKOUT GPIO_Pin_15
#define PORT_CLKOUT GPIOA
#define PIN_CLKOUT_INT GPIO_PinSource15
#define PORT_CLKOUT_INT GPIO_PortSourceGPIOA
#define PIN_LED GPIO_Pin_13
#define PORT_LED GPIOC
@ -72,12 +77,21 @@
#define PORT_COS_LED GPIOB
extern "C" {
#if defined(BIDIR_DATA_PIN)
void EXTI3_IRQHandler(void) {
if(EXTI_GetITStatus(EXTI_Line3)!=RESET) {
io.interrupt();
EXTI_ClearITPendingBit(EXTI_Line3);
}
}
#else
void EXTI15_10_IRQHandler(void) {
if(EXTI_GetITStatus(EXTI_Line15)!=RESET) {
io.interrupt();
EXTI_ClearITPendingBit(EXTI_Line15);
}
}
#endif
}
/**
@ -101,7 +115,11 @@ static inline void delay_us(uint32_t us) {
}
void CIO::delay_rx() {
#if defined(BIDIR_DATA_PIN)
delay_us(290);
#else
delay_us(340);
#endif
}
void CIO::dlybit(void)
@ -163,16 +181,23 @@ void CIO::Init()
GPIO_Init(PORT_RXD, &GPIO_InitStruct);
// Pin TXD
// TXD is TxRxCLK of ADF7021, standard TX/RX data interface
GPIO_InitStruct.GPIO_Speed = GPIO_Speed_50MHz;
GPIO_InitStruct.GPIO_Pin = PIN_TXD;
#if defined(BIDIR_DATA_PIN)
GPIO_InitStruct.GPIO_Mode = GPIO_Mode_IN_FLOATING;
#else
GPIO_InitStruct.GPIO_Mode = GPIO_Mode_Out_PP;
#endif
GPIO_Init(PORT_TXD, &GPIO_InitStruct);
// Pin TXRX_CLK
#if !defined(BIDIR_DATA_PIN)
GPIO_InitStruct.GPIO_Speed = GPIO_Speed_50MHz;
GPIO_InitStruct.GPIO_Pin = PIN_TXRX_CLK;
GPIO_InitStruct.GPIO_Pin = PIN_CLKOUT;
GPIO_InitStruct.GPIO_Mode = GPIO_Mode_IN_FLOATING;
GPIO_Init(PORT_TXRX_CLK, &GPIO_InitStruct);
GPIO_Init(PORT_CLKOUT, &GPIO_InitStruct);
#endif
// Pin LED
GPIO_InitStruct.GPIO_Speed = GPIO_Speed_50MHz;
@ -222,30 +247,60 @@ void CIO::Init()
GPIO_InitStruct.GPIO_Mode = GPIO_Mode_Out_PP;
GPIO_Init(PORT_COS_LED, &GPIO_InitStruct);
#if defined(BIDIR_DATA_PIN)
// Connect EXTI3 Line
GPIO_EXTILineConfig(PORT_TXD_INT, PIN_TXD_INT);
// Configure EXTI3 line
EXTI_InitStructure.EXTI_Line = EXTI_Line3;
#else
// Connect EXTI15 Line
GPIO_EXTILineConfig(PORT_TXRX_CLK_INT, PIN_TXRX_CLK_INT);
GPIO_EXTILineConfig(PORT_CLKOUT_INT, PIN_CLKOUT_INT);
// Configure EXTI15 line
EXTI_InitStructure.EXTI_Line = EXTI_Line15;
#endif
EXTI_InitStructure.EXTI_Mode = EXTI_Mode_Interrupt;
EXTI_InitStructure.EXTI_Trigger = EXTI_Trigger_Rising;
EXTI_InitStructure.EXTI_LineCmd = ENABLE;
EXTI_Init(&EXTI_InitStructure);
}
void CIO::startInt()
{
NVIC_InitTypeDef NVIC_InitStructure;
#if defined(BIDIR_DATA_PIN)
// Enable and set EXTI3 Interrupt
NVIC_InitStructure.NVIC_IRQChannel = EXTI3_IRQn;
#else
// Enable and set EXTI15 Interrupt
NVIC_InitStructure.NVIC_IRQChannel = EXTI15_10_IRQn;
#endif
NVIC_InitStructure.NVIC_IRQChannelPreemptionPriority = 0;
NVIC_InitStructure.NVIC_IRQChannelSubPriority = 0;
NVIC_InitStructure.NVIC_IRQChannelCmd = ENABLE;
NVIC_Init(&NVIC_InitStructure);
}
#if defined(BIDIR_DATA_PIN)
// RXD pin is bidirectional in standard interfaces
void CIO::Data_dir_out(bool dir)
{
GPIO_InitTypeDef GPIO_InitStruct;
GPIO_InitStruct.GPIO_Speed = GPIO_Speed_50MHz;
GPIO_InitStruct.GPIO_Pin = PIN_RXD;
if(dir)
GPIO_InitStruct.GPIO_Mode = GPIO_Mode_Out_PP;
else
GPIO_InitStruct.GPIO_Mode = GPIO_Mode_IN_FLOATING;
GPIO_Init(PORT_RXD, &GPIO_InitStruct);
}
#endif
void CIO::SCLK_pin(bool on)
{
GPIO_WriteBit(PORT_SCLK, PIN_SCLK, on ? Bit_SET : Bit_RESET);
@ -266,6 +321,13 @@ bool CIO::RXD_pin()
return GPIO_ReadInputDataBit(PORT_RXD, PIN_RXD) == Bit_SET;
}
#if defined(BIDIR_DATA_PIN)
void CIO::RXD_pin_write(bool on)
{
GPIO_WriteBit(PORT_RXD, PIN_RXD, on ? Bit_SET : Bit_RESET);
}
#endif
void CIO::TXD_pin(bool on)
{
GPIO_WriteBit(PORT_TXD, PIN_TXD, on ? Bit_SET : Bit_RESET);

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