-void cli_hexdump(void* data, uint16_t length){
- char hex_tab[] = {'0', '1', '2', '3',
- '4', '5', '6', '7',
- '8', '9', 'A', 'B',
- 'C', 'D', 'E', 'F'};
+/**
+ * \brief reads a line or max n characters from the console
+ * Writes characters from the console into the supplyed buffer until a '\r'
+ * character is recieved or until n character a read (whatever happens first).
+ * The string will always be terminated by a '\0' character, so the buffer
+ * should have at least a size of n+1.
+ */
+uint8_t cli_getsn(char* s, uint16_t n){
+ char c;
+ if(n==0)
+ return 2;
+ while((c=cli_getc_cecho())!='\0' && c!='\r' && n--){
+ *s++=c;
+ }
+ *s='\0';
+ return (c=='\r')?0:1;
+}
+
+/**
+ * \brief dumps the contents of a buffer to the console
+ * Dumps length bytes from data to the console ouput. The dump
+ * will have 2*n continous hexadecimal characters.
+ */
+void cli_hexdump(const void* data, uint16_t length){
+ if(!cli_tx)
+ return;
+ while(length--){
+ cli_tx(pgm_read_byte(hexdigit_tab_P +((*((uint8_t*)data))>>4)));
+ cli_tx(pgm_read_byte(hexdigit_tab_P +((*((uint8_t*)data))&0xf)));
+ data = (uint8_t*)data +1;
+ }
+}
+
+/**
+ * \brief dumps the contents of a buffer to the console
+ * This function behaves like cli_hexdump except that the
+ * bytes are dumped in reverse order. This is usefull to dump
+ * integers which ar e in little endian order.
+ */
+void cli_hexdump_rev(const void* data, uint16_t length){