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Timeout back to tx_mode 1

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This commit is contained in:
MichaelDvP
2020-06-16 07:55:21 +02:00
parent 6737a48da6
commit 01de545b41
3 changed files with 18 additions and 7 deletions
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17
src/uart/emsuart_esp8266.cpp
View File

@@ -275,10 +275,14 @@ void EMSuart::send_poll(uint8_t data) {
ETS_UART_INTR_DISABLE();
volatile uint8_t _usrxc = (USS(EMSUART_UART) >> USRXC) & 0xFF;
USF(EMSUART_UART) = data;
while (((USS(EMSUART_UART) >> USRXC) & 0xFF) == _usrxc) {
uint8_t timeoutcnt = EMSUART_TX_TIMEOUT;
while ((((USS(EMSUART_UART) >> USRXC) & 0xFF) == _usrxc) && (--timeoutcnt > 0)) {
delayMicroseconds(EMSUART_TX_BUSY_WAIT); // burn CPU cycles...
}
USC0(EMSUART_UART) |= (1 << UCBRK); // set <BRK>
while (!(USIR(EMSUART_UART) & (1 << UIBD))) {
timeoutcnt = EMSUART_TX_TIMEOUT;
while (!(USIR(EMSUART_UART) & (1 << UIBD)) && (--timeoutcnt > 0)) {
delayMicroseconds(EMSUART_TX_BUSY_WAIT);
}
USC0(EMSUART_UART) &= ~(1 << UCBRK); // clear <BRK>
ETS_UART_INTR_ENABLE();
@@ -376,9 +380,10 @@ 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;
uint8_t timeoutcnt = EMSUART_TX_TIMEOUT;
USF(EMSUART_UART) = buf[i]; // send each Tx byte
// wait for echo
while (((USS(EMSUART_UART) >> USRXC) & 0xFF) == _usrxc) {
while ((((USS(EMSUART_UART) >> USRXC) & 0xFF) == _usrxc) && (--timeoutcnt > 0)) {
delayMicroseconds(EMSUART_TX_BUSY_WAIT); // burn CPU cycles...
}
}
@@ -391,10 +396,10 @@ uint16_t ICACHE_FLASH_ATTR EMSuart::transmit(uint8_t * buf, uint8_t len) {
if (!(USIS(EMSUART_UART) & (1 << UIBD))) {
// no bus collision - send terminating BRK signal
USC0(EMSUART_UART) |= (1 << UCBRK); // set <BRK>
uint8_t timeoutcnt = EMSUART_TX_TIMEOUT;
// wait until BRK detected...
while (!(USIR(EMSUART_UART) & (1 << UIBD))) {
// delayMicroseconds(EMSUART_TX_BIT_TIME);
while (!(USIR(EMSUART_UART) & (1 << UIBD)) && (--timeoutcnt > 0)) {
delayMicroseconds(EMSUART_TX_BUSY_WAIT);
}
USC0(EMSUART_UART) &= ~(1 << UCBRK); // clear <BRK>

1
src/uart/emsuart_esp8266.h
View File

@@ -46,6 +46,7 @@
// EMS 1.0
#define EMSUART_TX_BUSY_WAIT (EMSUART_TX_BIT_TIME / 8) // 13
#define EMSUART_TX_TIMEOUT (22 * EMSUART_TX_BIT_TIME / EMSUART_TX_BUSY_WAIT) // 176
// HT3/Junkers - Time to send one Byte (8 Bits, 1 Start Bit, 1 Stop Bit) plus 7 bit delay. The -8 is for lag compensation.
#define EMSUART_TX_WAIT_HT3 (EMSUART_TX_BIT_TIME * 17) - 8 // 1760