From e1446381675be454d91081a2db1d275129970556 Mon Sep 17 00:00:00 2001 From: Maurus Cuelenaere Date: Fri, 5 Sep 2008 15:09:40 +0000 Subject: Add Onda VX767 target git-svn-id: svn://svn.rockbox.org/rockbox/trunk@18422 a1c6a512-1295-4272-9138-f99709370657 --- firmware/target/mips/ingenic_jz47xx/lcd-target.h | 36 ++++ .../mips/ingenic_jz47xx/onda_vx747/lcd-target.h | 36 ---- .../mips/ingenic_jz47xx/onda_vx767/adc-target.h | 28 +++ .../onda_vx767/backlight-ondavx767.c | 80 +++++++++ .../ingenic_jz47xx/onda_vx767/backlight-target.h | 37 ++++ .../ingenic_jz47xx/onda_vx767/button-ondavx767.c | 70 ++++++++ .../mips/ingenic_jz47xx/onda_vx767/button-target.h | 54 ++++++ .../mips/ingenic_jz47xx/onda_vx767/lcd-ondavx767.c | 195 +++++++++++++++++++++ .../target/mips/ingenic_jz47xx/system-jz4740.c | 122 +++++++------ 9 files changed, 572 insertions(+), 86 deletions(-) create mode 100644 firmware/target/mips/ingenic_jz47xx/lcd-target.h delete mode 100644 firmware/target/mips/ingenic_jz47xx/onda_vx747/lcd-target.h create mode 100644 firmware/target/mips/ingenic_jz47xx/onda_vx767/adc-target.h create mode 100644 firmware/target/mips/ingenic_jz47xx/onda_vx767/backlight-ondavx767.c create mode 100644 firmware/target/mips/ingenic_jz47xx/onda_vx767/backlight-target.h create mode 100644 firmware/target/mips/ingenic_jz47xx/onda_vx767/button-ondavx767.c create mode 100644 firmware/target/mips/ingenic_jz47xx/onda_vx767/button-target.h create mode 100644 firmware/target/mips/ingenic_jz47xx/onda_vx767/lcd-ondavx767.c (limited to 'firmware/target/mips') diff --git a/firmware/target/mips/ingenic_jz47xx/lcd-target.h b/firmware/target/mips/ingenic_jz47xx/lcd-target.h new file mode 100644 index 0000000000..e643608d56 --- /dev/null +++ b/firmware/target/mips/ingenic_jz47xx/lcd-target.h @@ -0,0 +1,36 @@ +/*************************************************************************** + * __________ __ ___. + * Open \______ \ ____ ____ | | _\_ |__ _______ ___ + * Source | _// _ \_/ ___\| |/ /| __ \ / _ \ \/ / + * Jukebox | | ( <_> ) \___| < | \_\ ( <_> > < < + * Firmware |____|_ /\____/ \___ >__|_ \|___ /\____/__/\_ \ + * \/ \/ \/ \/ \/ + * $Id$ + * + * Copyright (C) 2008 by Maurus Cuelenaere + * + * This program is free software; you can redistribute it and/or + * modify it under the terms of the GNU General Public License + * as published by the Free Software Foundation; either version 2 + * of the License, or (at your option) any later version. + * + * This software is distributed on an "AS IS" basis, WITHOUT WARRANTY OF ANY + * KIND, either express or implied. + * + ****************************************************************************/ +#ifndef LCD_TARGET_H +#define LCD_TARGET_H + +#include + +void lcd_enable(bool state); +bool lcd_enabled(void); +void lcd_init_device(void); + + +void lcd_init_controller(void); +void lcd_set_target(short x, short y, short width, short height); +void lcd_on(void); +void lcd_off(void); + +#endif /* LCD_TARGET_H */ diff --git a/firmware/target/mips/ingenic_jz47xx/onda_vx747/lcd-target.h b/firmware/target/mips/ingenic_jz47xx/onda_vx747/lcd-target.h deleted file mode 100644 index e643608d56..0000000000 --- a/firmware/target/mips/ingenic_jz47xx/onda_vx747/lcd-target.h +++ /dev/null @@ -1,36 +0,0 @@ -/*************************************************************************** - * __________ __ ___. - * Open \______ \ ____ ____ | | _\_ |__ _______ ___ - * Source | _// _ \_/ ___\| |/ /| __ \ / _ \ \/ / - * Jukebox | | ( <_> ) \___| < | \_\ ( <_> > < < - * Firmware |____|_ /\____/ \___ >__|_ \|___ /\____/__/\_ \ - * \/ \/ \/ \/ \/ - * $Id$ - * - * Copyright (C) 2008 by Maurus Cuelenaere - * - * This program is free software; you can redistribute it and/or - * modify it under the terms of the GNU General Public License - * as published by the Free Software Foundation; either version 2 - * of the License, or (at your option) any later version. - * - * This software is distributed on an "AS IS" basis, WITHOUT WARRANTY OF ANY - * KIND, either express or implied. - * - ****************************************************************************/ -#ifndef LCD_TARGET_H -#define LCD_TARGET_H - -#include - -void lcd_enable(bool state); -bool lcd_enabled(void); -void lcd_init_device(void); - - -void lcd_init_controller(void); -void lcd_set_target(short x, short y, short width, short height); -void lcd_on(void); -void lcd_off(void); - -#endif /* LCD_TARGET_H */ diff --git a/firmware/target/mips/ingenic_jz47xx/onda_vx767/adc-target.h b/firmware/target/mips/ingenic_jz47xx/onda_vx767/adc-target.h new file mode 100644 index 0000000000..e74f008a3e --- /dev/null +++ b/firmware/target/mips/ingenic_jz47xx/onda_vx767/adc-target.h @@ -0,0 +1,28 @@ +/*************************************************************************** + * __________ __ ___. + * Open \______ \ ____ ____ | | _\_ |__ _______ ___ + * Source | _// _ \_/ ___\| |/ /| __ \ / _ \ \/ / + * Jukebox | | ( <_> ) \___| < | \_\ ( <_> > < < + * Firmware |____|_ /\____/ \___ >__|_ \|___ /\____/__/\_ \ + * \/ \/ \/ \/ \/ + * $Id$ + * + * Copyright (C) 2008 by Maurus Cuelenaere + * + * This program is free software; you can redistribute it and/or + * modify it under the terms of the GNU General Public License + * as published by the Free Software Foundation; either version 2 + * of the License, or (at your option) any later version. + * + * This software is distributed on an "AS IS" basis, WITHOUT WARRANTY OF ANY + * KIND, either express or implied. + * + ****************************************************************************/ +#ifndef _ADC_TARGET_H_ +#define _ADC_TARGET_H_ + +#define NUM_ADC_CHANNELS 4 + +#define ADC_BUTTONS 0 + +#endif /* _ADC_TARGET_H_ */ diff --git a/firmware/target/mips/ingenic_jz47xx/onda_vx767/backlight-ondavx767.c b/firmware/target/mips/ingenic_jz47xx/onda_vx767/backlight-ondavx767.c new file mode 100644 index 0000000000..9deab7712a --- /dev/null +++ b/firmware/target/mips/ingenic_jz47xx/onda_vx767/backlight-ondavx767.c @@ -0,0 +1,80 @@ +/*************************************************************************** + * __________ __ ___. + * Open \______ \ ____ ____ | | _\_ |__ _______ ___ + * Source | _// _ \_/ ___\| |/ /| __ \ / _ \ \/ / + * Jukebox | | ( <_> ) \___| < | \_\ ( <_> > < < + * Firmware |____|_ /\____/ \___ >__|_ \|___ /\____/__/\_ \ + * \/ \/ \/ \/ \/ + * $Id$ + * + * Copyright (C) 2008 by Maurus Cuelenaere + * + * This program is free software; you can redistribute it and/or + * modify it under the terms of the GNU General Public License + * as published by the Free Software Foundation; either version 2 + * of the License, or (at your option) any later version. + * + * This software is distributed on an "AS IS" basis, WITHOUT WARRANTY OF ANY + * KIND, either express or implied. + * + ****************************************************************************/ + +#include "config.h" +#include "jz4740.h" +#include "backlight-target.h" + +#define GPIO_PWM 123 +#define PWM_CHN 7 +#define PWM_FULL 101 + +static void set_backlight(int unk, int val) +{ + if(val == 0) + __gpio_as_pwm7(); + else + { + REG_TCU_TCSR(7) |= 2; + REG_TCU_TCSR(7) &= ~0x100; + int tmp; + tmp = (unk/2 + __cpm_get_rtcclk()) / unk; + if(tmp > 0xFFFF) + tmp = 0xFFFF; + + __tcu_set_half_data(7, (tmp * unk * 1374389535) >> 5); + __tcu_set_full_data(7, tmp); + + REG_TCU_TSCR = (1 << 7); + REG_TCU_TESR = (1 << 7); + + __tcu_enable_pwm_output(7); + } + __tcu_set_count(7, 0); +} + +bool _backlight_init(void) +{ + __gpio_as_pwm7(); + + __tcu_stop_counter(7); + __tcu_disable_pwm_output(7); + + set_backlight(300, 7); + + return true; +} +void _backlight_on(void) +{ + set_backlight(300, 7); +} +void _backlight_off(void) +{ + set_backlight(300, 0); +} + +#ifdef HAVE_BACKLIGHT_BRIGHTNESS +void _backlight_set_brightness(int brightness) +{ + (void)brightness; + return; +} +#endif diff --git a/firmware/target/mips/ingenic_jz47xx/onda_vx767/backlight-target.h b/firmware/target/mips/ingenic_jz47xx/onda_vx767/backlight-target.h new file mode 100644 index 0000000000..4170f96cc0 --- /dev/null +++ b/firmware/target/mips/ingenic_jz47xx/onda_vx767/backlight-target.h @@ -0,0 +1,37 @@ +/*************************************************************************** + * __________ __ ___. + * Open \______ \ ____ ____ | | _\_ |__ _______ ___ + * Source | _// _ \_/ ___\| |/ /| __ \ / _ \ \/ / + * Jukebox | | ( <_> ) \___| < | \_\ ( <_> > < < + * Firmware |____|_ /\____/ \___ >__|_ \|___ /\____/__/\_ \ + * \/ \/ \/ \/ \/ + * $Id$ + * + * Copyright (C) 2008 by Maurus Cuelenaere + * + * This program is free software; you can redistribute it and/or + * modify it under the terms of the GNU General Public License + * as published by the Free Software Foundation; either version 2 + * of the License, or (at your option) any later version. + * + * This software is distributed on an "AS IS" basis, WITHOUT WARRANTY OF ANY + * KIND, either express or implied. + * + ****************************************************************************/ +#ifndef BACKLIGHT_TARGET_H +#define BACKLIGHT_TARGET_H + +#ifdef BOOTLOADER +#define BACKLIGHT_DRIVER_CLOSE +/* Force the whole driver to be built */ +#define BACKLIGHT_FULL_INIT +#endif + +#include + +bool _backlight_init(void); +void _backlight_on(void); +void _backlight_off(void); +void _backlight_set_brightness(int brightness); + +#endif /* BACKLIGHT_TARGET_H */ diff --git a/firmware/target/mips/ingenic_jz47xx/onda_vx767/button-ondavx767.c b/firmware/target/mips/ingenic_jz47xx/onda_vx767/button-ondavx767.c new file mode 100644 index 0000000000..8b033a1bee --- /dev/null +++ b/firmware/target/mips/ingenic_jz47xx/onda_vx767/button-ondavx767.c @@ -0,0 +1,70 @@ +/*************************************************************************** + * __________ __ ___. + * Open \______ \ ____ ____ | | _\_ |__ _______ ___ + * Source | _// _ \_/ ___\| |/ /| __ \ / _ \ \/ / + * Jukebox | | ( <_> ) \___| < | \_\ ( <_> > < < + * Firmware |____|_ /\____/ \___ >__|_ \|___ /\____/__/\_ \ + * \/ \/ \/ \/ \/ + * $Id$ + * + * Copyright (C) 2008 by Maurus Cuelenaere + * + * This program is free software; you can redistribute it and/or + * modify it under the terms of the GNU General Public License + * as published by the Free Software Foundation; either version 2 + * of the License, or (at your option) any later version. + * + * This software is distributed on an "AS IS" basis, WITHOUT WARRANTY OF ANY + * KIND, either express or implied. + * + ****************************************************************************/ + +#include "config.h" +#include "system.h" +#include "jz4740.h" +#include "button-target.h" + +#define BTN_VOL_DOWN (1 << 27) +#define BTN_VOL_UP (1 << 0) +#define BTN_MENU (1 << 1) +#define BTN_OFF (1 << 29) +#define BTN_HOLD (1 << 16) +#define BTN_MASK (BTN_VOL_DOWN | BTN_VOL_UP \ + | BTN_MENU | BTN_OFF ) + +bool button_hold(void) +{ + return (~REG_GPIO_PXPIN(3) & BTN_HOLD ? 1 : 0); +} + +void button_init_device(void) +{ + __gpio_port_as_input(3, 29); + __gpio_port_as_input(3, 27); + __gpio_port_as_input(3, 16); + __gpio_port_as_input(3, 1); + __gpio_port_as_input(3, 0); +} + +int button_read_device(void) +{ + if(button_hold()) + return 0; + + unsigned int key = ~(__gpio_get_port(3)); + int ret = 0; + + if(key & BTN_MASK) + { + if(key & BTN_VOL_DOWN) + ret |= BUTTON_VOL_DOWN; + if(key & BTN_VOL_UP) + ret |= BUTTON_VOL_UP; + if(key & BTN_MENU) + ret |= BUTTON_MENU; + if(key & BTN_OFF) + ret |= BUTTON_POWER; + } + + return ret; +} diff --git a/firmware/target/mips/ingenic_jz47xx/onda_vx767/button-target.h b/firmware/target/mips/ingenic_jz47xx/onda_vx767/button-target.h new file mode 100644 index 0000000000..32325d1423 --- /dev/null +++ b/firmware/target/mips/ingenic_jz47xx/onda_vx767/button-target.h @@ -0,0 +1,54 @@ +/*************************************************************************** + * __________ __ ___. + * Open \______ \ ____ ____ | | _\_ |__ _______ ___ + * Source | _// _ \_/ ___\| |/ /| __ \ / _ \ \/ / + * Jukebox | | ( <_> ) \___| < | \_\ ( <_> > < < + * Firmware |____|_ /\____/ \___ >__|_ \|___ /\____/__/\_ \ + * \/ \/ \/ \/ \/ + * $Id$ + * + * Copyright (C) 2008 by Maurus Cuelenaere + * + * This program is free software; you can redistribute it and/or + * modify it under the terms of the GNU General Public License + * as published by the Free Software Foundation; either version 2 + * of the License, or (at your option) any later version. + * + * This software is distributed on an "AS IS" basis, WITHOUT WARRANTY OF ANY + * KIND, either express or implied. + * + ****************************************************************************/ +#ifndef BUTTON_TARGET_H +#define BUTTON_TARGET_H + +#include +#include "config.h" + +#define HAS_BUTTON_HOLD + +bool button_hold(void); +void button_init_device(void); +int button_read_device(void); + +/* Main unit's buttons */ +#define BUTTON_POWER 0x00000001 +#define BUTTON_VOL_UP 0x00000002 +#define BUTTON_VOL_DOWN 0x00000004 +#define BUTTON_MENU 0x00000008 + +/* Compatibility hacks for flipping. Needs a somewhat better fix. */ +#define BUTTON_LEFT 0 +#define BUTTON_RIGHT 0 +#define BUTTON_UP 0 +#define BUTTON_DOWN 0 + +#define BUTTON_MAIN (BUTTON_POWER | BUTTON_VOL_UP | BUTTON_VOL_DOWN | BUTTON_MENU) + +/* No remote */ +#define BUTTON_REMOTE 0 + +/* Software power-off */ +#define POWEROFF_BUTTON BUTTON_POWER +#define POWEROFF_COUNT 10 + +#endif /* BUTTON_TARGET_H */ diff --git a/firmware/target/mips/ingenic_jz47xx/onda_vx767/lcd-ondavx767.c b/firmware/target/mips/ingenic_jz47xx/onda_vx767/lcd-ondavx767.c new file mode 100644 index 0000000000..63d1736ebe --- /dev/null +++ b/firmware/target/mips/ingenic_jz47xx/onda_vx767/lcd-ondavx767.c @@ -0,0 +1,195 @@ +/*************************************************************************** + * __________ __ ___. + * Open \______ \ ____ ____ | | _\_ |__ _______ ___ + * Source | _// _ \_/ ___\| |/ /| __ \ / _ \ \/ / + * Jukebox | | ( <_> ) \___| < | \_\ ( <_> > < < + * Firmware |____|_ /\____/ \___ >__|_ \|___ /\____/__/\_ \ + * \/ \/ \/ \/ \/ + * $Id$ + * + * Copyright (C) 2008 by Maurus Cuelenaere + * + * This program is free software; you can redistribute it and/or + * modify it under the terms of the GNU General Public License + * as published by the Free Software Foundation; either version 2 + * of the License, or (at your option) any later version. + * + * This software is distributed on an "AS IS" basis, WITHOUT WARRANTY OF ANY + * KIND, either express or implied. + * + ****************************************************************************/ + +#include "config.h" +#include "jz4740.h" +#include "lcd-target.h" + +#define PIN_CS_N (32*1+17) /* Chip select */ +#define PIN_RESET_N (32*1+18) /* Reset */ +#define PIN_UNK_N (32*2+19) + +#define my__gpio_as_lcd_16bit() \ +do { \ + REG_GPIO_PXFUNS(2) = 0x0014ffff; \ + REG_GPIO_PXSELC(2) = 0x0014ffff; \ + REG_GPIO_PXPES(2) = 0x0014ffff; \ +} while (0) + + +#define SLEEP(x) for(i=0; i 0x1ff ) + val = 0x1ff; /* CPM_LPCDR is too large, set it to 0x1ff */ + __cpm_set_pixdiv(val); + __cpm_start_lcd(); +} + +void lcd_init_controller(void) +{ + int i; + _display_pin_init(); + _set_lcd_bus(); + _set_lcd_clock(); + SLEEP(1000); + _display_init(); +} + +void lcd_set_target(short x, short y, short width, short height) +{ + SLCD_SEND_COMMAND(0x50, y); + SLCD_SEND_COMMAND(0x51, y+height-1); + SLCD_SEND_COMMAND(0x52, x); + SLCD_SEND_COMMAND(0x53, x+width-1); + /* TODO */ +} + +void lcd_on(void) +{ + _display_on(); +} + +void lcd_off(void) +{ + _display_off(); +} diff --git a/firmware/target/mips/ingenic_jz47xx/system-jz4740.c b/firmware/target/mips/ingenic_jz47xx/system-jz4740.c index 8f1c3f5c1a..61be6c60de 100644 --- a/firmware/target/mips/ingenic_jz47xx/system-jz4740.c +++ b/firmware/target/mips/ingenic_jz47xx/system-jz4740.c @@ -555,21 +555,7 @@ void dma_cache_wback_inv(unsigned long addr, unsigned long size) } } -extern int main(void); -extern void except_common_entry(void); - -#define mtc0_tlbw_hazard() \ - __asm__ __volatile__( \ - " .set noreorder \n" \ - " nop \n" \ - " nop \n" \ - " nop \n" \ - " nop \n" \ - " nop \n" \ - " nop \n" \ - " .set reorder \n"); - -#define tlbw_use_hazard() \ +#define BARRIER \ __asm__ __volatile__( \ " .set noreorder \n" \ " nop \n" \ @@ -580,10 +566,13 @@ extern void except_common_entry(void); " nop \n" \ " .set reorder \n"); - -#define PAGE_SHIFT PL_4K -#define PM_DEFAULT_MASK PM_4K -#define UNIQUE_ENTRYHI(idx) (A_K0BASE + ((idx) << (PAGE_SHIFT + 1))) +#define DEFAULT_PAGE_SHIFT PL_4K +#define DEFAULT_PAGE_MASK PM_4K +#define UNIQUE_ENTRYHI(idx, ps) (A_K0BASE + ((idx) << (ps + 1))) +#define ASID_MASK M_EntryHiASID +#define VPN2_SHIFT S_EntryHiVPN2 +#define PFN_SHIFT S_EntryLoPFN +#define PFN_MASK 0xffffff static void local_flush_tlb_all(void) { unsigned long old_ctx; @@ -594,59 +583,92 @@ static void local_flush_tlb_all(void) old_ctx = read_c0_entryhi(); write_c0_entrylo0(0); write_c0_entrylo1(0); + BARRIER; /* Blast 'em all away. */ - for(entry = read_c0_wired(); entry < 32; entry++) + for(entry = 0; entry < 32; entry++) { /* Make sure all entries differ. */ - write_c0_entryhi(UNIQUE_ENTRYHI(entry)); + write_c0_entryhi(UNIQUE_ENTRYHI(entry, DEFAULT_PAGE_SHIFT)); write_c0_index(entry); - mtc0_tlbw_hazard(); + BARRIER; tlb_write_indexed(); } - tlbw_use_hazard(); + BARRIER; write_c0_entryhi(old_ctx); restore_irq(old_irq); } +static void add_wired_entry(unsigned long entrylo0, unsigned long entrylo1, + unsigned long entryhi, unsigned long pagemask) +{ + unsigned long wired; + unsigned long old_pagemask; + unsigned long old_ctx; + unsigned int old_irq = disable_irq_save(); + + old_ctx = read_c0_entryhi() & ASID_MASK; + old_pagemask = read_c0_pagemask(); + wired = read_c0_wired(); + write_c0_wired(wired + 1); + write_c0_index(wired); + BARRIER; + write_c0_pagemask(pagemask); + write_c0_entryhi(entryhi); + write_c0_entrylo0(entrylo0); + write_c0_entrylo1(entrylo1); + BARRIER; + tlb_write_indexed(); + BARRIER; + + write_c0_entryhi(old_ctx); + BARRIER; + write_c0_pagemask(old_pagemask); + local_flush_tlb_all(); + restore_irq(old_irq); +} + +static void map_address(unsigned long virtual, unsigned long physical, unsigned long length) +{ + unsigned long entry0 = (physical & PFN_MASK) << PFN_SHIFT; + unsigned long entry1 = ((physical+length) & PFN_MASK) << PFN_SHIFT; + unsigned long entryhi = virtual & ~VPN2_SHIFT; + + entry0 |= (M_EntryLoG | M_EntryLoV | (K_CacheAttrC << S_EntryLoC) ); + entry1 |= (M_EntryLoG | M_EntryLoV | (K_CacheAttrC << S_EntryLoC) ); + + add_wired_entry(entry0, entry1, entryhi, DEFAULT_PAGE_MASK); +} + static void tlb_init(void) { - write_c0_pagemask(PM_DEFAULT_MASK); + write_c0_pagemask(DEFAULT_PAGE_MASK); write_c0_wired(0); write_c0_framemask(0); local_flush_tlb_all(); +/* + map_address(0x80000000, 0x80000000, 0x4000); + map_address(0x80004000, 0x80004000, MEM * 0x100000); +*/ } -static void tlb_refill_handler(void) +void tlb_refill_handler(void) { -#if 1 - panicf("TLB refill handler! [0x%x] [0x%x]", read_c0_badvaddr(), read_c0_epc()); -#else - __asm__ __volatile__( - "mfc0 k0, C0_BADVADDR\n" - "lui k1, pgdc\n" - "lw k1, pgdc>>16(k0)\n" - "srl k0, k0, 22\n" - "sll k0, k0, 2\n" - "addu k1, k1, k0\n" - "mfc0 k0, C0_CONTEXT\n" - "lw k1, 0(k1)\n" - "andi k0, k0, 0xFFC\n" - "addu k1, k1, k0\n" - "lw k0, 0(k1)\n" - "nop\n" - "mtc0 k0, C0_ENTRYLO0\n" - "mfc0 k1, C0_EPC\n" - "tlbwr\n" - "jr k1\n" - "rfe\n" - ); -#endif + panicf("TLB refill handler! [0x%x] [0x%lx]", read_c0_badvaddr(), read_c0_epc()); } +static void tlb_call_refill(void) +{ + asm("la $8, tlb_refill_handler \n" + "jr $8 \n"); +} + +extern int main(void); +extern void except_common_entry(void); + void system_main(void) { int i; @@ -657,7 +679,7 @@ void system_main(void) * 0x180 - Exception/Interrupt handler * 0x200 - Special Exception Interrupt handler (when IV is set in CP0_CAUSE) */ - memcpy((void *)A_K0BASE, (void *)&tlb_refill_handler, 0x20); + memcpy((void *)A_K0BASE, (void *)&tlb_call_refill, 0x20); memcpy((void *)(A_K0BASE + 0x100), (void *)&except_common_entry, 0x20); memcpy((void *)(A_K0BASE + 0x180), (void *)&except_common_entry, 0x20); memcpy((void *)(A_K0BASE + 0x200), (void *)&except_common_entry, 0x20); @@ -671,7 +693,7 @@ void system_main(void) for(i=0; i