From 75843d7e163f97fd42f96661863c1de664b08cc8 Mon Sep 17 00:00:00 2001
From: Guo Wenxue <guowenxue@gmail.com>
Date: Sun, 07 Jul 2024 19:28:29 +0800
Subject: [PATCH] Update modules led source code to support other pins

---
 modules/sht20.c |   95 +++++++++++++++++------------------------------
 1 files changed, 34 insertions(+), 61 deletions(-)

diff --git a/modules/sht20.c b/modules/sht20.c
index 477adc6..f549369 100644
--- a/modules/sht20.c
+++ b/modules/sht20.c
@@ -73,7 +73,7 @@
 
 static inline void msleep(unsigned long ms);
 void print_buf(const char *prompt, uint8_t *buf, int size);
-void dump_buf(const char *prompt, char *buf, size_t len);
+void dump_buf(const char *prompt, char *buffer, size_t length);
 
 static inline void banner(const char *progname)
 {
@@ -469,74 +469,47 @@
     return ;
 }
 
-#define LINELEN 81
-#define CHARS_PER_LINE 16
-static char *print_char =
-"                "
-"                "
-" !\"#$%&'()*+,-./"
-"0123456789:;<=>?"
-"@ABCDEFGHIJKLMNO"
-"PQRSTUVWXYZ[\\]^_"
-"`abcdefghijklmno"
-"pqrstuvwxyz{|}~ "
-"                "
-"                "
-" ???????????????"
-"????????????????"
-"????????????????"
-"????????????????"
-"????????????????"
-"????????????????";
-
-void dump_buf(const char *prompt, char *buf, size_t len)
+void dump_buf(const char *prompt, char *buffer, size_t length)
 {
-    int rc;
-    int idx;
-    char prn[LINELEN];
-    char lit[CHARS_PER_LINE + 2];
-    char hc[4];
-    short line_done = 1;
+    size_t i, j;
 
-    if( prompt )
-        printf("%s", prompt);
-
-    rc = len;
-    idx = 0;
-    lit[CHARS_PER_LINE] = '\0';
-
-    while (rc > 0)
+    if (prompt)
     {
-        if (line_done)
-            snprintf(prn, LINELEN, "%08X: ", idx);
-
-        do
-        {
-            unsigned char c = buf[idx];
-            snprintf(hc, 4, "%02X ", c);
-            strncat(prn, hc, LINELEN);
-
-            lit[idx % CHARS_PER_LINE] = print_char[c];
-        }
-        while (--rc > 0 && (++idx % CHARS_PER_LINE != 0));
-
-        line_done = (idx % CHARS_PER_LINE) == 0;
-        if (line_done)
-        {
-            printf("%s  %s\r\n", prn, lit);
-        }
+        printf("%s\n", prompt);
     }
 
-    if (!line_done)
+    for (i = 0; i < length; i += 16)
     {
-        int ldx = idx % CHARS_PER_LINE;
-        lit[ldx++] = print_char[(int)buf[idx]];
-        lit[ldx] = '\0';
+        printf("%08zx: ", i);
 
-        while ((++idx % CHARS_PER_LINE) != 0)
-            strncat(prn, "   ", sizeof(prn)-strlen(prn));
+        for (j = 0; j < 16; j++)
+        {
+            if (i + j < length)
+            {
+                printf("%02x ", buffer[i + j]);
+            }
+            else
+            {
+                printf("   ");
+            }
+        }
 
-        printf("%s  %s\r\n", prn, lit);
+        printf(" ");
 
+        for (j = 0; j < 16; j++)
+        {
+            if (i + j < length)
+            {
+                unsigned char c = buffer[i + j];
+                printf("%c", (c >= 32 && c <= 126) ? c : '.');
+            }
+            else
+            {
+                printf(" ");
+            }
+        }
+
+        printf("\n");
     }
 }
+

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