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// Source code under CC0 1.0
#include <stdint.h>
#include <stdio.h>
#include <string.h>
#include <stdlib.h>
#include <ctype.h>
#include "stm8.h"
#include "serial.h"
#include "flash.h"
#if (DEVICE & DEV_SDISC)
#define LED_PORT GPIOD
#define LED_MASK 0x01
#else
#define LED_PORT GPIOC
#define LED_MASK 0x80
#endif
volatile unsigned char *sif= (unsigned char *)0x7fff;
void
print_bl()
{
int a, l;
uint8_t *p= (uint8_t *)0x6000;
printf("%c\n", 2);
printf("$A%04x,\n", 0x6000);
for (a= 0, l= 0; a < 0x800; a++)
{
printf("%02x ", p[a]);
l++;
if ((l % 16) == 0)
{
l= 0;
printf("\n");
}
}
printf("%c\n", 3);
}
void
dump(unsigned long int start, unsigned long int len)
{
uint8_t *p= (uint8_t *)0;
int i= 0;
printf("%06lx ", start);
while (i<len)
{
printf("%02x ", p[start+i]);
i++;
if ((i<len) && ((start+i)%8 == 0))
{
printf("\n%06lx ", start+i);
}
}
printf("\n");
}
#define DELIM " ,"
int
xtoi(char *s)
{
int r= 0;
while (*s)
{
if (isdigit(*s))
r= r*16 + *s-'0';
else if ((*s >= 'a') && (*s <= 'f'))
r= r*16 + *s-'a'+10;
else if ((*s >= 'A') && (*s <= 'F'))
r= r*16 + *s-'A'+10;
s++;
}
return r;
}
unsigned long int
xtol(char *s)
{
unsigned long int r= 0;
while (*s)
{
if (isdigit(*s))
r= r*16 + *s-'0';
else if ((*s >= 'a') && (*s <= 'f'))
r= r*16 + *s-'a'+10;
else if ((*s >= 'A') && (*s <= 'F'))
r= r*16 + *s-'A'+10;
s++;
}
return r;
}
void f1() {}
void f2() {}
void
proc_cmd(char *cmd)
{
char *w= strtok(cmd, DELIM);
char *s;
uint8_t res;
uint8_t *rom= (uint8_t *)0;
unsigned long addr;
if (w)
{
if (strcmp(w, "bl") == 0)
print_bl();
else if (strcmp(w, "uid") == 0)
{
#if defined UID
int i;
uint8_t *p= UID;
printf("0x%04x ", p);
for (i= 0; i < 12; i++)
printf("%02x ", p[i]);
printf("\n");
#else
printf("no uid\n");
#endif
}
else if (strstr(w, "dump") == w)
{
s= strtok(NULL, DELIM);
if (s)
{
unsigned long int start= xtol(s);
unsigned long int len= 32;
s= strtok(NULL, DELIM);
if (s)
len= xtol(s);
dump(start, len);
}
}
else if (strcmp(w, "fb") == 0)
{
addr= 0xa000;
printf("Before:\n");
dump(addr, 1);
f1();
flash_byte_mode();
flash_punlock();
rom[addr]= 0xa5;
res= flash_wait_finish();
f2();
flash_plock();
printf("After (%s,%d):\n", (res==0)?"succ":"fail", res);
dump(addr, 1);
}
else if (strcmp(w, "fw") == 0)
{
LED_PORT->odr|= LED_MASK;
addr= 0xa0a0;
printf("Before:\n");
dump(addr, 4);
f1();
flash_word_mode();
flash_punlock();
rom[addr+0]= 0x12;
rom[addr+1]= 0x34;
rom[addr+2]= 0x56;
rom[addr+3]= 0x78;
res= flash_wait_finish();
f2();
flash_plock();
printf("After (%s,%d):\n", (res==0)?"succ":"fail", res);
dump(addr, 4);
LED_PORT->odr&= ~LED_MASK;
}
else if (strcmp(w, "fe") == 0)
{
LED_PORT->odr|= LED_MASK;
addr= 0xa000;
printf("Before:\n");
dump(addr, 64);
f1();
flash_punlock();
/*
rom[addr+0]= 0;
rom[addr+1]= 0;
rom[addr+2]= 0;
rom[addr+3]= 0;
res= flash_wait_finish();
*/
res= flash_erase((uint8_t*)0xa000, &(FLASH->iapsr));
f2();
flash_plock();
printf("After (%s,%d):\n", (res==0)?"succ":"fail", res);
dump(addr, 64);
LED_PORT->odr&= ~LED_MASK;
}
else if (strstr(w, "test") == w)
{
printf("%d\n", sizeof(flash_erase));
}
else
printf("Unknown command: \"%s\"\n", w);
}
else
printf("What?\n");
}
char cmd[100];
void
proc_input(char c)
{
int l= strlen(cmd);
printf("%c", c);
if ((c == '\n') ||
(c == '\r'))
{
proc_cmd(cmd);
cmd[0]= 0;
}
else
{
if (l < 99)
{
cmd[l++]= c;
cmd[l]= 0;
}
}
}
void main(void)
{
unsigned long i = 0;
unsigned int a= 0;
CLK->ckdivr = 0x00; // Set the frequency to 16 MHz
CLK->pckenr1 = 0xFF; // Enable peripherals
LED_PORT->ddr= LED_MASK;
LED_PORT->cr1= LED_MASK;
// USART2
// TX: PD5, CN4.10
// RX: PD6, CN4.11
USART->cr2 = USART_CR2_TEN | USART_CR2_REN; // Allow TX and RX
USART->cr3 &= ~(USART_CR3_STOP1 | USART_CR3_STOP2); // 1 stop bit
// 0 68 3 0x0683=1667 16MHz-> 9600 baud
//USART->brr2 = 0x03;
//USART->brr1 = 0x68;
// 0 08 b 0x008b=139 16MHz-> 115200 baud
USART->brr2 = 0x0b;
USART->brr1 = 0x08;
USART->cr2|= USART_CR2_RIEN;
EI;
printf("%d discovery monitor\n", DEVICE);
/*{
uint8_t *p= (uint8_t *)0x123456;
printf("sizeof p=%d\n", sizeof(p));
*p= 0;
}*/
cmd[0]= 0;
{/*
struct st {
volatile uint8_t v;
};
struct st s;*/
uint8_t r= FLASH->iapsr;
while (FLASH->iapsr == 0)
;//r= FLASH->iapsr;
}
for(;;)
{
if (serial_received())
{
char c= getchar();
proc_input(c);
}
}
}
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