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USB: move firmware for usb-to-serial MCU (CH552)
Change links to the new ch552_fw directory.
This commit is contained in:
dehanj
Michael Cardell Widerkrantz
parent
c271b48a53
commit
354aecbed6
17 changed files with 3 additions and 3 deletions
184
hw/usb_interface/ch552_fw/include/debug.h
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184
hw/usb_interface/ch552_fw/include/debug.h
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/* Debug */
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/* Provide printf subroutine and delay function */
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#pragma once
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#include <stdint.h>
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#ifndef UART0_BAUD
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#define UART0_BAUD 9600
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#endif
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#ifndef UART1_BAUD
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#define UART1_BAUD 9600
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#endif
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void CfgFsys( ); // CH554 clock selection and configuration
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void mDelayuS (uint16_t n); // Delay in units of uS
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void mDelaymS (uint16_t n); // Delay in mS
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/*******************************************************************************
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* Function Name : CH554UART0Alter()
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* Description : CH554 serial port 0 pin mapping, serial port mapping to P0.2 and P0.3
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*******************************************************************************/
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inline void CH554UART0Alter()
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{
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PIN_FUNC |= bUART0_PIN_X; //串口映射到P1.2和P1.3
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}
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/*******************************************************************************
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* Function Name : mInitSTDIO()
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* Description : CH554 serial port 0 is initialized, T1 is used as the baud rate generator of UART0 by default, T2 can also be used
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As a baud rate generator
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*******************************************************************************/
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inline void mInitSTDIO( )
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{
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uint32_t x;
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uint8_t x2;
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SM0 = 0;
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SM1 = 1;
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SM2 = 0; //Serial port 0 usage mode 1
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//Use Timer1 as a baud rate generator
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RCLK = 0; //UART0 receive clock
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TCLK = 0; //UART0 transmit clock
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PCON |= SMOD;
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x = 10 * FREQ_SYS / UART0_BAUD / 16; //If you change the main frequency, be careful not to overflow the value of x
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x2 = x % 10;
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x /= 10;
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if ( x2 >= 5 ) x ++; //rounding
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TMOD = TMOD & ~ bT1_GATE & ~ bT1_CT & ~ MASK_T1_MOD | bT1_M1; //0X20, Timer1 as 8-bit auto-reload timer
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T2MOD = T2MOD | bTMR_CLK | bT1_CLK; //Timer1 clock selection
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TH1 = 0-x; //12MHz crystal oscillator, buad / 12 is the actual need to set the baud rate
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TR1 = 1; //Start timer 1
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TI = 1;
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REN = 1; //Serial 0 receive enable
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}
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/*******************************************************************************
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* Function Name : CH554UART0RcvByte()
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* Description : CH554UART0 receives a byte
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* Return : SBUF
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*******************************************************************************/
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inline uint8_t CH554UART0RcvByte( )
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{
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while(RI == 0); // wait for uart rx interrupt flag
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RI = 0;
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return SBUF;
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}
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/*******************************************************************************
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* Function Name : CH554UART0SendByte(uint8_t SendDat)
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* Description : CH554UART0 sends a byte
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* Input : uint8_t SendDat; the data to be sent
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*******************************************************************************/
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inline void CH554UART0SendByte(uint8_t SendDat)
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{
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SBUF = SendDat;
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while(TI ==0); // wait for transmit to finish (TI == 1)
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TI = 0;
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}
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/*******************************************************************************
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* Function Name : CH554UART1Alter()
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* Description : Set the alternate pin mappings for UART1 (TX on P3.2, RX on P3.4)
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*******************************************************************************/
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inline void CH554UART1Alter()
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{
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PIN_FUNC |= bUART1_PIN_X;
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}
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/*******************************************************************************
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* Function Name : UART1Setup()
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* Description : CH554串口1初始化
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*******************************************************************************/
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inline void UART1Setup()
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{
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U1SM0 = 0; //UART1选择8位数据位
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U1SMOD = 1; //快速模式
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U1REN = 1; //使能接收
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// should correct for rounding in SBAUD1 calculation
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SBAUD1 = 256 - FREQ_SYS/16/UART1_BAUD;
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}
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/*******************************************************************************
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* Function Name : CH554UART1RcvByte()
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* Description : CH554UART1接收一个字节
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* Return : SBUF
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*******************************************************************************/
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inline uint8_t CH554UART1RcvByte( )
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{
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while(U1RI == 0); //查询接收，中断方式可不用
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U1RI = 0;
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return SBUF1;
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}
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/*******************************************************************************
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* Function Name : CH554UART1SendByte(uint8_t SendDat)
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* Description : CH554UART1发送一个字节
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* Input : uint8_t SendDat；要发送的数据
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*******************************************************************************/
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inline void CH554UART1SendByte(uint8_t SendDat)
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{
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SBUF1 = SendDat; //查询发送，中断方式可不用下面2条语句,但发送前需TI=0
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while(U1TI ==0);
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U1TI = 0;
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}
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#if SDCC < 370
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void putchar(char c);
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char getchar();
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#else
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int putchar(int c);
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int getchar(void);
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#endif
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/*******************************************************************************
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* Function Name : CH554WDTModeSelect(uint8_t mode)
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* Description : CH554 watchdog mode selection
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* Input : uint8_t mode
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0 timer
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1 watchDog
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* Output : None
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* Return : None
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*******************************************************************************/
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inline void CH554WDTModeSelect(uint8_t mode)
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{
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SAFE_MOD = 0x55;
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SAFE_MOD = 0xaa; //Enter Safe Mode
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if(mode){
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GLOBAL_CFG |= bWDOG_EN; //Start watchdog reset
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}
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else GLOBAL_CFG &= ~bWDOG_EN; //Start watchdog only as a timer
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SAFE_MOD = 0x00; //exit safe Mode
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WDOG_COUNT = 0; //Watchdog assignment initial value
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}
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/*******************************************************************************
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* Function Name : CH554WDTFeed(uint8_t tim)
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* Description : CH554 watchdog timer time setting
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* Input : uint8_t tim watchdog reset time setting
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00H(6MHz)=2.8s
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80H(6MHz)=1.4s
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* Output : None
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* Return : None
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*******************************************************************************/
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inline void CH554WDTFeed(uint8_t tim)
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{
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WDOG_COUNT = tim; // Watchdog counter assignment
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}
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// Set pin p1.4 and p1.5 to GPIO output mode.
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void gpio_init();
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void gpio_set(uint8_t pin);
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void gpio_unset(uint8_t pin);
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