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merged from v2_uart

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proddy
2020-07-27 18:57:26 +02:00
parent 9b7d6aa6ed
commit b196fbd0fd
2 changed files with 21 additions and 12 deletions
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22
src/uart/emsuart_esp32.cpp
View File

@@ -88,11 +88,11 @@ void IRAM_ATTR EMSuart::emsuart_tx_timer_intr_handler() {
portENTER_CRITICAL(&mux);
if (emsTxBufIdx < emsTxBufLen) {
EMS_UART.fifo.rw_byte = emsTxBuf[emsTxBufIdx];
timerAlarmWrite(timer, emsTxWait, true);
} else if (emsTxBufIdx == emsTxBufLen) {
EMS_UART.conf0.txd_inv = 1;
timerAlarmWrite(timer, EMSUART_TX_WAIT_BRK, true);
} else if (emsTxBufIdx == emsTxBufLen + 1) {
// delayMicroseconds(EMSUART_TX_WAIT_BRK);
EMS_UART.conf0.txd_inv = 0;
timerAlarmDisable(timer);
}
@@ -122,28 +122,28 @@ void EMSuart::start(const uint8_t tx_mode) {
uart_set_pin(EMSUART_UART, EMSUART_TXPIN, EMSUART_RXPIN, UART_PIN_NO_CHANGE, UART_PIN_NO_CHANGE);
EMS_UART.int_ena.val = 0; // disable all intr.
EMS_UART.int_clr.val = 0xFFFFFFFF; // clear all intr. flags
EMS_UART.idle_conf.tx_brk_num = 11; // breaklength 11 bit
EMS_UART.idle_conf.tx_brk_num = 10; // breaklength 10 bit
EMS_UART.idle_conf.rx_idle_thrhd = 256;
drop_next_rx = true;
buf_handle = xRingbufferCreate(128, RINGBUF_TYPE_NOSPLIT);
uart_isr_register(EMSUART_UART, emsuart_rx_intr_handler, NULL, ESP_INTR_FLAG_IRAM, NULL);
xTaskCreate(emsuart_recvTask, "emsuart_recvTask", 2048, NULL, configMAX_PRIORITIES - 1, NULL);
timer = timerBegin(1, 80, true); // timer prescale to 1 µs, countup
timerAttachInterrupt(timer, &emsuart_tx_timer_intr_handler, true); // Timer with edge interrupt
timer = timerBegin(0, 80, true); // timer prescale to 1 us, countup
timerAttachInterrupt(timer, &emsuart_tx_timer_intr_handler, false); // Timer with level interrupt
restart();
}
/*
* Stop, disables interrupt
* Stop, disable interrupt
*/
void EMSuart::stop() {
EMS_UART.int_ena.val = 0; // disable all intr.
// timerAlarmDisable(timer);
EMS_UART.conf0.txd_inv = 0; // stop break
};
/*
* Restart Interrupt
* Restart uart and make mode dependent configs.
*/
void EMSuart::restart() {
if (EMS_UART.int_raw.brk_det) { // we received a break in the meantime
@@ -153,7 +153,11 @@ void EMSuart::restart() {
EMS_UART.int_ena.brk_det = 1; // activate only break
emsTxBufIdx = 0;
emsTxBufLen = 0;
if (tx_mode_ > 100) {
emsTxWait = EMSUART_TX_BIT_TIME * (tx_mode_ - 90);
} else {
emsTxWait = EMSUART_TX_BIT_TIME * (tx_mode_ + 10);
}
if(tx_mode_ == EMS_TXMODE_NEW) {
EMS_UART.conf0.txd_brk = 1;
} else {
@@ -217,7 +221,11 @@ uint16_t EMSuart::transmit(const uint8_t * buf, const uint8_t len) {
}
emsTxBufIdx = 0;
emsTxBufLen = len;
if (tx_mode_ > 100) {
timerAlarmWrite(timer, EMSUART_TX_WAIT_REPLY, true);
} else {
timerAlarmWrite(timer, emsTxWait, true); // start with autoreload
}
timerAlarmEnable(timer);
return EMS_TX_STATUS_OK;
}

3
src/uart/emsuart_esp32.h
View File

@@ -47,7 +47,8 @@
// LEGACY
#define EMSUART_TX_BIT_TIME 104 // bit time @9600 baud
#define EMSUART_TX_WAIT_BRK (EMSUART_TX_BIT_TIME * 11) // 1144
#define EMSUART_TX_WAIT_BRK (EMSUART_TX_BIT_TIME * 10) // 10 bt
#define EMSUART_TX_WAIT_REPLY 100000 // delay 100ms after first byte
// EMS 1.0
#define EMSUART_TX_BUSY_WAIT (EMSUART_TX_BIT_TIME / 8) // 13