X-Git-Url: http://cloudbase.mooo.com/gitweb/z180-stamp.git/blobdiff_plain/c748023ede9e7d8bdbf81ce8c8be2a437607a9e4..7af9364ebd7ad6c143f31e9abe745c6d75f8322b:/avr/main.c

diff --git a/avr/main.c b/avr/main.c
index f4d4c6f..86dcc50 100644
--- a/avr/main.c
+++ b/avr/main.c
@@ -1,7 +1,7 @@
 /*
  * (C) Copyright 2014 Leo C. <erbl259-lmu@yahoo.de>
  *
- * SPDX-License-Identifier:	GPL-2.0+
+ * SPDX-License-Identifier:	GPL-2.0
  */
 
 
@@ -9,10 +9,9 @@
 #include <avr/interrupt.h>
 #include <avr/wdt.h>
 #include <stdlib.h>
-#include <stdio.h>
 
 #include "config.h"
-#include "debug.h"
+#include "ff.h"
 #include "z80-if.h"
 #include "i2c.h"
 #include "con-utils.h"
@@ -24,6 +23,7 @@
 #include "gpio.h"
 #include "time.h"
 #include "rtc.h"
+#include "debug.h"
 
 uint8_t mcusr __attribute__ ((section (".noinit")));
 
@@ -31,7 +31,7 @@ uint8_t mcusr __attribute__ ((section (".noinit")));
 __attribute__ ((naked)) __attribute__ ((section (".init3")))
 void preset_ram (void)
 {
-	for (uint8_t *p = RAMSTART; p <= (uint8_t *) RAMEND; p++)
+	for (uint8_t *p = (uint8_t *) RAMSTART; p <= (uint8_t *) RAMEND; p++)
 		*p = 0xdd;
 
 }
@@ -115,10 +115,10 @@ void setup_avr(void)
 	CLKPR = 0;
 
 	/* Timer */
-	PRR1 &= ~_BV(PRTIM3);
-	OCR3A = F_CPU / 1000 - 1;	/* Timer3: 1000Hz interval (OC3A) */
-	TCCR3B = (0b01<<WGM32)|(0b001<<CS30); /* CTC Mode, Prescaler 1 */
-	TIMSK3 = _BV(OCIE3A);		/* Enable TC2.oca interrupt */
+	PRR1 &= ~_BV(PRTIM4);
+	OCR4A = F_CPU / 1000 - 1;	/* Timer4: 1000Hz interval */
+	TCCR4B = (0b00<<WGM42)|(0b001<<CS40); /* Normal Mode, Prescaler 1 */
+	TIMSK4 = _BV(OCIE4A);		/* Enable Output Compare A interrupt */
 
 	/* INT5, INT6: falling edge */
 	EICRB = (EICRB & ~((0b11 << ISC50) | (0b11 << ISC60))) |
@@ -145,6 +145,17 @@ void setup_system_time(void)
 	set_system_time(mk_gmtime(&rtc_time) );
 }
 
+
+
+static void setup_fatfs(void)
+{
+	static FATFS FatFs0;
+	static FATFS FatFs1;
+
+	f_mount(&FatFs0, "0:", 0);
+	f_mount(&FatFs1, "1:", 0);
+}
+
 /*--------------------------------------------------------------------------*/
 
 /* Stored value of bootdelay, used by autoboot_command() */
@@ -212,7 +223,7 @@ const char *bootdelay_process(void)
 	debug("### main_loop entered: bootdelay=%d\n\n", bootdelay);
 	_delay_ms(20);
 
-	s = getenv(PSTR(ENV_BOOTCMD));
+	s = getenv_str(PSTR(ENV_BOOTCMD));
 	stored_bootdelay = bootdelay;
 	return s;
 }
@@ -220,7 +231,7 @@ const char *bootdelay_process(void)
 static
 void autoboot_command(const char *s)
 {
-	debug("### main_loop: bootcmd=\"%s\"\n", s ? s : PSTR("<UNDEFINED>"));
+	debug("### main_loop: bootcmd=\"%s\"\n", s ? s : "<UNDEFINED>");
 	_delay_ms(20);
 
 	if (stored_bootdelay != -1 && s && !abortboot(stored_bootdelay)) {
@@ -243,12 +254,12 @@ int main(void)
 {
 	extern void setup_mmc(void);
 
+	setup_avr();
 	for (int i = 0; i < GPIO_MAX; i++)
 		gpio_config(i, INPUT_PULLUP);
-	setup_avr();
 	setup_mmc();
-	z80_setup_bus();
 	env_init();
+	z80_setup_bus();
 
 	if (reset_reason_is_power_on())
 		_delay_ms(CONFIG_PWRON_DELAY);
@@ -261,16 +272,11 @@ int main(void)
 	print_reset_reason();
 #endif
 
-#if DEBUG
-	unsigned long i_speed = getenv_ulong(PSTR("i2c_clock"), 10, CONFIG_SYS_I2C_CLOCK);
-	debug("### Setting I2C clock Frequency to %lu Hz.\n", i_speed);
-	i2c_init(i_speed);
-#else
 	i2c_init(CONFIG_SYS_I2C_CLOCK);
-#endif
 	setup_system_time();
+	setup_fatfs();
 
-	printf_P(PSTR("\nATMEGA1281+Z8S180 Stamp Monitor\n\n"));
+	printf_P(PSTR("\n" MCU_STRING "+Z8S180 Stamp Monitor - Version: " VERSION  " \n\n"));
 
 	setup_z180_serv();