andry/EMS-ESP32
1
0
Fork 0
mirror of https://github.com/emsesp/EMS-ESP32.git synced 2025-12-11 10:19:55 +03:00
Code Issues Packages Projects Releases Wiki Activity

Merge branch 'v2' of https://github.com/proddy/EMS-ESP into v2

Browse Source
This commit is contained in:
MichaelDvP
2020-06-19 12:12:40 +02:00
parent 5a189813ee 4d40a53bd8
commit 76a5de4bf9
8 changed files with 98 additions and 80 deletions
Download Patch File Download Diff File Expand all files Collapse all files

51
src/uart/emsuart_esp8266.cpp
View File

@@ -35,7 +35,6 @@ uint8_t emsTxBufIdx;
uint8_t emsTxBufLen;
uint32_t emsTxWait;
//
// Main interrupt handler
// Important: must not use ICACHE_FLASH_ATTR
@@ -45,24 +44,24 @@ void ICACHE_RAM_ATTR EMSuart::emsuart_rx_intr_handler(void * para) {
static uint8_t uart_buffer[EMS_MAXBUFFERSIZE + 2];
if (USIS(EMSUART_UART) & ((1 << UIFF))) { // Fifo full, sending in Mode 5
USIC(EMSUART_UART) |= (1 << UIFF); // INT clear fifo interrupt
USIC(EMSUART_UART) |= (1 << UIFF); // clear fifo interrupt
emsTxBufIdx++;
if (emsTxBufIdx < emsTxBufLen) {
USF(EMSUART_UART) = emsTxBuf[emsTxBufIdx]; // send next byte
USF(EMSUART_UART) = emsTxBuf[emsTxBufIdx]; // send next byte
USC1(EMSUART_UART) = ((emsTxBufIdx + 1) << UCFFT); // increase fifo full
} else if (emsTxBufIdx == emsTxBufLen) {
USC0(EMSUART_UART) |= (1 << UCBRK); // set <BRK>
USIE(EMSUART_UART) &= ~(1 << UIFF); // disable fifo-full irq
USC0(EMSUART_UART) |= (1 << UCBRK); // set <BRK>
USIE(EMSUART_UART) &= ~(1 << UIFF); // disable fifo-full irq
USC1(EMSUART_UART) = (0x7F << UCFFT); // fifo full to max
}
}
if (USIS(EMSUART_UART) & ((1 << UIBD))) { // BREAK detection = End of EMS data block
USC0(EMSUART_UART) &= ~(1 << UCBRK); // reset tx-brk
if (emsTxBufIdx < emsTxBufLen) { // timer tx_mode is interrupted by <brk>
emsTxBufIdx = emsTxBufLen; // stop timer mode
drop_next_rx = true; // we have trash in buffer
USC0(EMSUART_UART) &= ~(1 << UCBRK); // reset tx-brk
if (emsTxBufIdx < emsTxBufLen) { // timer tx_mode is interrupted by <brk>
emsTxBufIdx = emsTxBufLen; // stop timer mode
drop_next_rx = true; // we have trash in buffer
}
USIC(EMSUART_UART) = (1 << UIBD); // INT clear the BREAK detect interrupt
USIC(EMSUART_UART) = (1 << UIBD); // INT clear the BREAK detect interrupt
USIE(EMSUART_UART) &= ~(1 << UIFF); // disable fifo-full irq
length = 0;
while ((USS(EMSUART_UART) >> USRXC) & 0x0FF) { // read fifo into buffer
@@ -120,6 +119,7 @@ void ICACHE_RAM_ATTR EMSuart::emsuart_tx_timer_intr_handler() {
USC0(EMSUART_UART) |= (1 << UCBRK); // set <BRK>
}
}
/*
* init UART0 driver
*/
@@ -190,7 +190,6 @@ void ICACHE_FLASH_ATTR EMSuart::start(uint8_t tx_mode) {
ETS_UART_INTR_ATTACH(emsuart_rx_intr_handler, nullptr);
ETS_UART_INTR_ENABLE();
drop_next_rx = true;
// LOG_INFO(F("UART service for Rx/Tx started"));
// for sending with large delay in EMS+ mode we use a timer interrupt
timer1_attachInterrupt(emsuart_tx_timer_intr_handler); // Add ISR Function
@@ -225,7 +224,6 @@ void ICACHE_FLASH_ATTR EMSuart::restart() {
* Which is a 11-bit set of zero's (11 cycles)
*/
void ICACHE_FLASH_ATTR EMSuart::tx_brk() {
// make sure Tx FIFO is empty
while (((USS(EMSUART_UART) >> USTXC) & 0xFF)) {
}
@@ -235,8 +233,8 @@ void ICACHE_FLASH_ATTR EMSuart::tx_brk() {
ETS_UART_INTR_DISABLE();
USC0(EMSUART_UART) |= (1 << UCBRK); // set bit
// also for EMS+ there is no need to wait longer, we are finished and can free the bus.
delayMicroseconds(EMSUART_TX_WAIT_BRK); // 1144
// also for EMS+ there is no need to wait longer, we are finished and can free the bus.
delayMicroseconds(EMSUART_TX_WAIT_BRK); // 1144
USC0(EMSUART_UART) &= ~(1 << UCBRK); // clear BRK bit
ETS_UART_INTR_ENABLE();
@@ -256,10 +254,11 @@ void EMSuart::send_poll(uint8_t data) {
emsTxBufLen = 1;
timer1_write(emsTxWait);
} else if (tx_mode_ == 5) { // reload sendbuffer in irq
USIC(EMSUART_UART) |= (1 << UIFF); // clear fifo-full irq
USC1(EMSUART_UART) = (0x01 << UCFFT); // fifo full to 1
USF(EMSUART_UART) = data;
emsTxBufIdx = 0;
emsTxBufLen = 1;
USF(EMSUART_UART) = data;
emsTxBufIdx = 0;
emsTxBufLen = 1;
USIE(EMSUART_UART) |= (1 << UIFF); // enable fifo-full irq
} else if (tx_mode_ == EMS_TXMODE_NEW) { // hardware controlled modes
USF(EMSUART_UART) = data;
@@ -272,7 +271,9 @@ void EMSuart::send_poll(uint8_t data) {
USF(EMSUART_UART) = data;
delayMicroseconds(EMSUART_TX_WAIT_PLUS);
tx_brk(); // send <BRK>
} else { // EMS1.0, same logic as in transmit
} else {
// tx_mode 1
// EMS1.0, same logic as in transmit
ETS_UART_INTR_DISABLE();
volatile uint8_t _usrxc = (USS(EMSUART_UART) >> USRXC) & 0xFF;
USF(EMSUART_UART) = data;
@@ -299,7 +300,7 @@ uint16_t ICACHE_FLASH_ATTR EMSuart::transmit(uint8_t * buf, uint8_t len) {
if (len == 0 || len >= EMS_MAXBUFFERSIZE) {
return EMS_TX_STATUS_ERR; // nothing or to much to send
}
// reset tx-brk, just in case it is accidentally set
USC0(EMSUART_UART) &= ~(1 << UCBRK);
@@ -314,10 +315,12 @@ uint16_t ICACHE_FLASH_ATTR EMSuart::transmit(uint8_t * buf, uint8_t len) {
timer1_write(emsTxWait);
return EMS_TX_STATUS_OK;
}
// interrupt controlled mode: readback in rx-irq and send next byte
if (tx_mode_ == 5) {
for (uint8_t i = 0; i < len; i++) {
emsTxBuf[i] = buf[i];
}
USIC(EMSUART_UART) |= (1 << UIFF); // clear fifo-full irq
emsTxBufIdx = 0;
emsTxBufLen = len;
USF(EMSUART_UART) = buf[0];
@@ -336,7 +339,7 @@ uint16_t ICACHE_FLASH_ATTR EMSuart::transmit(uint8_t * buf, uint8_t len) {
}
// EMS+ https://github.com/proddy/EMS-ESP/issues/23#
if (tx_mode_ == EMS_TXMODE_EMSPLUS) { // With extra tx delay for EMS+
if (tx_mode_ == EMS_TXMODE_EMSPLUS) { // tx_mode 2, With extra tx delay for EMS+
for (uint8_t i = 0; i < len; i++) {
USF(EMSUART_UART) = buf[i];
delayMicroseconds(EMSUART_TX_WAIT_PLUS); // 2070
@@ -345,7 +348,7 @@ uint16_t ICACHE_FLASH_ATTR EMSuart::transmit(uint8_t * buf, uint8_t len) {
return EMS_TX_STATUS_OK;
}
// Junkers logic by @philrich
// Junkers logic by @philrich, tx_mode 3
if (tx_mode_ == EMS_TXMODE_HT3) {
for (uint8_t i = 0; i < len; i++) {
USF(EMSUART_UART) = buf[i];
@@ -391,9 +394,9 @@ uint16_t ICACHE_FLASH_ATTR EMSuart::transmit(uint8_t * buf, uint8_t len) {
// send the bytes along the serial line
for (uint8_t i = 0; i < len; i++) {
volatile uint8_t _usrxc = (USS(EMSUART_UART) >> USRXC) & 0xFF;
uint16_t timeoutcnt = EMSUART_TX_TIMEOUT;
USF(EMSUART_UART) = buf[i]; // send each Tx byte
volatile uint8_t _usrxc = (USS(EMSUART_UART) >> USRXC) & 0xFF;
uint16_t timeoutcnt = EMSUART_TX_TIMEOUT;
USF(EMSUART_UART) = buf[i]; // send each Tx byte
// wait for echo
while ((((USS(EMSUART_UART) >> USRXC) & 0xFF) == _usrxc) && (--timeoutcnt > 0)) {
delayMicroseconds(EMSUART_TX_BUSY_WAIT); // burn CPU cycles...