USB: move firmware for usb-to-serial MCU (CH552)

Change links to the new ch552_fw directory.
2025-05-07 16:34:59 -04:00 · 2024-06-19 13:26:46 +02:00 · 2024-06-19 13:26:46 +02:00 · 354aecbed6
commit 354aecbed6
parent c271b48a53
17 changed files with 3 additions and 3 deletions
--- a/hw/usb_interface/ch552_fw/include/debug.c
+++ b/hw/usb_interface/ch552_fw/include/debug.c
@ -0,0 +1,203 @@
+/********************************** (C) COPYRIGHT *******************************
+* File Name          : Debug.C
+* Author             : WCH
+* Version            : V1.0
+* Date               : 2017/01/20
+* Description        : CH554 DEBUG Interface
+                     CH554 main frequency modification, delay function definition
+                     Serial port 0 and serial port 1 initialization
+                     Serial port 0 and serial port 1 transceiver subfunctions
+                     Watchdog initialization
+*******************************************************************************/
+
+#include <stdint.h>
+
+#include "ch554.h"
+#include "debug.h"
+
+/*******************************************************************************
+* Function Name  : CfgFsys( )
+* Description  : CH554 clock selection and configuration function, Fsys 6MHz is used by default, FREQ_SYS can be passed
+                 CLOCK_CFG configuration, the formula is as follows:
+                 Fsys = (Fosc * 4 / (CLOCK_CFG & MASK_SYS_CK_SEL); the specific clock needs to be configured by yourself
+*******************************************************************************/
+void	CfgFsys( )
+{
+	SAFE_MOD = 0x55;
+	SAFE_MOD = 0xAA;
+//     CLOCK_CFG |= bOSC_EN_XT;                          // Enable external crystal
+//     CLOCK_CFG & = ~ bOSC_EN_INT;                      // Turn off the internal crystal
+
+#if FREQ_SYS == 32000000
+	CLOCK_CFG = CLOCK_CFG & ~ MASK_SYS_CK_SEL | 0x07;  // 32MHz
+#elif FREQ_SYS == 24000000
+	CLOCK_CFG = CLOCK_CFG & ~ MASK_SYS_CK_SEL | 0x06;  // 24MHz
+#elif FREQ_SYS == 16000000
+	CLOCK_CFG = CLOCK_CFG & ~ MASK_SYS_CK_SEL | 0x05;  // 16MHz
+#elif FREQ_SYS == 12000000
+	CLOCK_CFG = CLOCK_CFG & ~ MASK_SYS_CK_SEL | 0x04;  // 12MHz
+#elif FREQ_SYS == 6000000
+	CLOCK_CFG = CLOCK_CFG & ~ MASK_SYS_CK_SEL | 0x03;  // 6MHz
+#elif FREQ_SYS == 3000000
+	CLOCK_CFG = CLOCK_CFG & ~ MASK_SYS_CK_SEL | 0x02;  // 3MHz
+#elif FREQ_SYS == 750000
+	CLOCK_CFG = CLOCK_CFG & ~ MASK_SYS_CK_SEL | 0x01;  // 750KHz
+#elif FREQ_SYS == 187500
+	CLOCK_CFG = CLOCK_CFG & ~ MASK_SYS_CK_SEL | 0x00;  // 187.5MHz
+#else
+	#warning FREQ_SYS invalid or not set
+#endif
+
+	SAFE_MOD = 0x00;
+}
+
+
+
+/*******************************************************************************
+* Function Name  : mDelayus(UNIT16 n)
+* Description    : us delay function
+* Input          : UNIT16 n
+* Output         : None
+* Return         : None
+*******************************************************************************/
+void	mDelayuS( uint16_t n )  // Delay in uS
+{
+#ifdef	FREQ_SYS
+#if		FREQ_SYS <= 6000000
+		n >>= 2;
+#endif
+#if		FREQ_SYS <= 3000000
+		n >>= 2;
+#endif
+#if		FREQ_SYS <= 750000
+		n >>= 4;
+#endif
+#endif
+	while ( n ) {  // total = 12~13 Fsys cycles, 1uS @Fsys=12MHz
+		++ SAFE_MOD;  // 2 Fsys cycles, for higher Fsys, add operation here
+#ifdef	FREQ_SYS
+#if		FREQ_SYS >= 14000000
+		++ SAFE_MOD;
+#endif
+#if		FREQ_SYS >= 16000000
+		++ SAFE_MOD;
+#endif
+#if		FREQ_SYS >= 18000000
+		++ SAFE_MOD;
+#endif
+#if		FREQ_SYS >= 20000000
+		++ SAFE_MOD;
+#endif
+#if		FREQ_SYS >= 22000000
+		++ SAFE_MOD;
+#endif
+#if		FREQ_SYS >= 24000000
+		++ SAFE_MOD;
+#endif
+#if		FREQ_SYS >= 26000000
+		++ SAFE_MOD;
+#endif
+#if		FREQ_SYS >= 28000000
+		++ SAFE_MOD;
+#endif
+#if		FREQ_SYS >= 30000000
+		++ SAFE_MOD;
+#endif
+#if		FREQ_SYS >= 32000000
+		++ SAFE_MOD;
+#endif
+#endif
+		-- n;
+	}
+}
+
+/*******************************************************************************
+* Function Name  : mDelayms(UNIT16 n)
+* Description    : ms delay function
+* Input          : UNIT16 n
+* Output         : None
+* Return         : None
+*******************************************************************************/
+void	mDelaymS( uint16_t n )                                                  // Delay in mS
+{
+	while ( n ) {
+#ifdef	DELAY_MS_HW
+		while ( ( TKEY_CTRL & bTKC_IF ) == 0 );
+		while ( TKEY_CTRL & bTKC_IF );
+#else
+		mDelayuS( 1000 );
+#endif
+		-- n;
+	}
+}
+
+#if SDCC < 370
+void putchar(char c)
+{
+    while (!TI); /* assumes UART is initialized */
+    TI = 0;
+    SBUF = c;
+}
+
+char getchar() {
+    while(!RI); /* assumes UART is initialized */
+    RI = 0;
+    return SBUF;
+}
+#else
+int putchar(int c)
+{
+    while (!TI); /* assumes UART is initialized */
+    TI = 0;
+    SBUF = c & 0xFF;
+
+    return c;
+}
+
+int getchar() {
+    while(!RI); /* assumes UART is initialized */
+    RI = 0;
+    return SBUF;
+}
+#endif
+
+// Set pin p1.4 and p1.5 to GPIO output mode.
+void gpio_init(){
+	// p1.4
+	P1_MOD_OC &= ~0x10;
+	P1_DIR_PU |= 0x10;
+
+	// p1.5
+	P1_MOD_OC &= ~0x20;
+	P1_DIR_PU |= 0x20;
+
+}
+
+void gpio_set(uint8_t pin) {
+	switch (pin)
+	{
+	case 0x10: // p1.4
+		P1 |= 0x10;
+		break;
+	case 0x20: // p1.5
+		P1 |= 0x20;
+		break;
+	default: // do nothing, unsupported pin.
+		break;
+	}
+}
+
+void gpio_unset(uint8_t pin) {
+	switch (pin)
+	{
+	case 0x10:
+		P1 &= ~0x10;
+		break;
+	case 0x20:
+		P1 &= ~0x20;
+		break;
+	default: // do nothing, unsupported pin.
+		break;
+	}
+
+}