modified softuart fix

- reverted softuart change to rx pin listening (tighter loop) - added UART onewire solution to be tested with TMC
Paciente8159 · Jan 25, 2024 · ef7c469 · ef7c469
1 parent 4953d86
commit ef7c469
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Showing 2 changed files with 27 additions and 6 deletions.
diff --git a/uCNC/src/modules/softuart.c b/uCNC/src/modules/softuart.c
@@ -59,14 +59,13 @@ int16_t softuart_getc(softuart_port_t *port, uint32_t ms_timeout)
 	}
 	else
 	{
-		ms_timeout *= 1000;
+		ms_timeout += mcu_millis();
 		while (port->rx())
 		{
-			if (!ms_timeout--)
+			if (ms_timeout > mcu_millis())
 			{
 				return -1;
 			}
-			cnc_dotasks();
 		}
 		port->waithalf();
 

diff --git a/uCNC/src/modules/softuart.h b/uCNC/src/modules/softuart.h
@@ -41,16 +41,38 @@ extern "C"
 	{                                                                  \
 		if (state)                                                     \
 		{                                                              \
-			io_set_output(TXPIN);                                     \
+			io_set_output(TXPIN);                                      \
 		}                                                              \
 		else                                                           \
 		{                                                              \
-			io_clear_output(TXPIN);                                   \
+			io_clear_output(TXPIN);                                    \
 		}                                                              \
 	}                                                                  \
 	bool NAME##_rx(void)                                               \
 	{                                                                  \
-		return io_get_input(RXPIN);                                   \
+		return io_get_input(RXPIN);                                    \
+	}                                                                  \
+	void NAME##_wait(void) { mcu_delay_cycles(F_CPU / BAUD); }         \
+	void NAME##_waithalf(void) { mcu_delay_cycles(F_CPU / 2 / BAUD); } \
+	__attribute__((used)) softuart_port_t NAME = {.wait = &NAME##_wait, .waithalf = &NAME##_waithalf, .tx = &NAME##_tx, .rx = &NAME##_rx};
+
+#define ONEWIRE(NAME, BAUD, TRXPIN)                                    \
+	void NAME##_tx(bool state)                                         \
+	{                                                                  \
+		if (state)                                                     \
+		{                                                              \
+			io_config_input(TRXPIN);                                   \
+			io_config_pullup(TRXPIN);                                  \
+		}                                                              \
+		else                                                           \
+		{                                                              \
+			io_clear_output(TRXPIN);                                   \
+			io_config_output(TRXPIN);                                  \
+		}                                                              \
+	}                                                                  \
+	bool NAME##_rx(void)                                               \
+	{                                                                  \
+		return io_get_input(RXPIN);                                    \
 	}                                                                  \
 	void NAME##_wait(void) { mcu_delay_cycles(F_CPU / BAUD); }         \
 	void NAME##_waithalf(void) { mcu_delay_cycles(F_CPU / 2 / BAUD); } \