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Fix HardwareSerial initialization and interrupt handling

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RXD pin was not configured properly
This commit is contained in:
Ivan Grokhotkov 2015-01-16 17:29:58 +03:00
parent 4ef93a4f1e
commit a3f28ef787
1 changed files with 5 additions and 8 deletions
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13
cores/esp8266/HardwareSerial.cpp
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@ -76,15 +76,11 @@ void ICACHE_FLASH_ATTR uart0_interrupt_handler(uart_t* uart)
}
WRITE_PERI_REG(UART_INT_CLR(0), UART_RXFIFO_FULL_INT_CLR);
}
else if (status & UART_TXFIFO_EMPTY_INT_ST)
if (status & UART_TXFIFO_EMPTY_INT_ST)
{
WRITE_PERI_REG(UART_INT_CLR(0), UART_TXFIFO_EMPTY_INT_CLR);
Serial._tx_empty_irq();
}
else
{
WRITE_PERI_REG(UART_INT_CLR(0), status);
}
}
void ICACHE_FLASH_ATTR uart0_wait_for_tx_fifo(size_t size_needed)
@ -172,17 +168,18 @@ uart_t* ICACHE_FLASH_ATTR uart0_init(int baudrate)
PIN_PULLUP_DIS(PERIPHS_IO_MUX_U0TXD_U);
PIN_FUNC_SELECT(PERIPHS_IO_MUX_U0TXD_U, FUNC_U0TXD);
PIN_PULLUP_EN(PERIPHS_IO_MUX_U0RXD_U);
PIN_FUNC_SELECT(PERIPHS_IO_MUX_U0RXD_U, FUNC_U0RXD);
uart0_set_baudrate(uart, baudrate);
WRITE_PERI_REG(UART_CONF0(0), 0x3 << UART_BIT_NUM_S); // 8n1
uart0_flush(uart);
uart0_interrupt_enable(uart);
WRITE_PERI_REG(UART_CONF1(0), ((0x01 & UART_RXFIFO_FULL_THRHD) << UART_RXFIFO_FULL_THRHD_S) |
((0x20 & UART_TXFIFO_EMPTY_THRHD) << UART_TXFIFO_EMPTY_THRHD_S));
uart0_interrupt_enable(uart);
return uart;
}