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70 lines
1.8 KiB
70 lines
1.8 KiB
9 years ago
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//Stupid bit of code that does the bare minimum to make os_printf work.
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/*
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* ----------------------------------------------------------------------------
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* "THE BEER-WARE LICENSE" (Revision 42):
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* Jeroen Domburg <jeroen@spritesmods.com> wrote this file. As long as you retain
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* this notice you can do whatever you want with this stuff. If we meet some day,
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* and you think this stuff is worth it, you can buy me a beer in return.
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* ----------------------------------------------------------------------------
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*/
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#include <esp8266.h>
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#include "uart.h"
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///** USART1 write routine */
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//static void ICACHE_FLASH_ATTR stdoutUart1Txd(char c)
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//{
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// //Wait until there is room in the FIFO
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// while (((READ_PERI_REG(UART_STATUS(0)) >> UART_TXFIFO_CNT_S) & UART_TXFIFO_CNT) >= 126) ;
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// //Send the character
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// WRITE_PERI_REG(UART_FIFO(0), c);
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//}
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///** Putchar to USART1 */
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//static void ICACHE_FLASH_ATTR stdoutPutcharUSART1(char c)
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//{
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// //convert \n -> \r\n
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// if (c == '\n') stdoutUart1Txd('\r');
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// stdoutUart1Txd(c);
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//}
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/**
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* @brief Configure UART 115200-8-N-1
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* @param uart_no
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*/
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void ICACHE_FLASH_ATTR
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my_uart_init(UARTn uart_no)
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{
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UART_SetParity(uart_no, PARITY_NONE);
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UART_SetStopBits(uart_no, ONE_STOP_BIT);
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UART_SetWordLength(uart_no, EIGHT_BITS);
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UART_SetBaudrate(uart_no, BIT_RATE_115200);
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UART_ResetFifo(uart_no);
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}
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void ICACHE_FLASH_ATTR
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stdoutInit()
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{
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// U0TXD
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PIN_FUNC_SELECT(PERIPHS_IO_MUX_U0TXD_U, FUNC_U0TXD);
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PIN_PULLUP_DIS(PERIPHS_IO_MUX_U0TXD_U);
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// U0RXD
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PIN_FUNC_SELECT(PERIPHS_IO_MUX_U0RXD_U, FUNC_U0RXD);
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// U1TXD (GPIO2)
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PIN_FUNC_SELECT(PERIPHS_IO_MUX_GPIO2_U, FUNC_U1TXD_BK);
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// Configure the UART peripherals
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my_uart_init(UART0); // main
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my_uart_init(UART1); // debug (output only)
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// Select debug port
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UART_SetPrintPort(UART1);
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}
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