#
CSRC += lcd.c led.c
CSRC += mmc.c pff.c
-CSRC += twi.c ssm2603.c at24c.c
+CSRC += twi.c uart.c
+CSRC += ssm2603.c at24c.c
CSRC += bfin_util.c uzume.c
CSRC += effect.c main.c
ASRC +=
* ===============================================================
*/
+#include <builtins.h>
#include "at24c.h"
#include "twi.h"
+#include "bfin_util.h"
+
+#define DEVICE_PINCONF (0)
+#define DEVICE_ADDRESS(N) (0x50 | ((N) & 0x07))
void at24c_init()
{
- /*
- * TWI\e$B$r=i4|2=$9$k!#\e(B
- */
twi_init();
}
void at24c_read(const uint32_t addr, uint8_t *data)
{
+ uint8_t buf[1];
+ buf[0] = addr;
+ twi_master_write(DEVICE_ADDRESS(DEVICE_PINCONF), TWI_RSTART, &buf[0], 1);
+ while (twi_master_xfer_state() != TWI_STATE_COMP) {
+ ssync();
+ }
+ twi_master_read(DEVICE_ADDRESS(DEVICE_PINCONF), TWI_STOP, data, 1);
+ while (twi_master_xfer_state() != TWI_STATE_COMP) {
+ ssync();
+ }
+ bfin_util_usleep(5000);
}
void at24c_write(const uint32_t addr, const uint8_t data)
{
+ uint8_t buf[2];
+ buf[0] = addr;
+ buf[1] = data;
+ twi_master_write(DEVICE_ADDRESS(DEVICE_PINCONF), TWI_STOP, &buf[0], 2);
+ while (twi_master_xfer_state() != TWI_STATE_COMP) {
+ ssync();
+ }
+ bfin_util_usleep(5000);
}
*/
#include <cdefBF592-A.h>
+#include <builtins.h>
#include "twi.h"
#include "ssm2603.h"
void ssm2603_init(void)
{
- uint32_t i, j;
+ uint32_t i;
/*
* TWIを初期化する。
*/
for (i = 0; i < sizeof(ssm2603_initdata); i+=2) {
twi_master_write(TWI_DEVICE_ADDR, TWI_STOP, &ssm2603_initdata[i], 2);
- /*
- * STOP CONDITIONから600ns以上空ける
- */
- for (j = 0; j < 300; j++) {
- asm("ssync;");
+ while (twi_master_xfer_state() != TWI_STATE_COMP) {
+ ssync();
}
}
}
* ===============================================================
*/
-#include "twi.h"
#include <cdefBF592-A.h>
+#include <builtins.h>
+#include <sys/exception.h>
+#include <stdint.h>
+#include "twi.h"
#define TWI_COUNT(x) (DCNT & ((x) << 6))
-/**
- * @brief TWI(I2C)を初期化する。
- */
+typedef struct
+{
+ int32_t state;
+ int32_t xfer_dir; /* 0:READ, 1:WRITE */
+ uint8_t* p_data;
+ int32_t count;
+} twi_xfer_param;
+
+typedef __attribute__((interrupt_handler)) void (*ex_handler_fn_gcc)(void);
+
+/* TWI割り込みのプロトタイプ宣言 */
+static __attribute__((interrupt_handler)) void s_bfin_twi_isr(void);
+
+static twi_xfer_param sf_twi_xfer_param;
+
+/* Visual DSP++のregister_handler関数実装 */
+static void s_bfin_register_handler(interrupt_kind kind, ex_handler_fn_gcc fn)
+{
+ uint32_t l_mask;
+
+ if((ik_emulation > kind) || (kind > ik_ivg15)) return;
+
+ *((ex_handler_fn_gcc*)&(((uint32_t*)EVT0)[(int32_t)kind])) = fn;
+ l_mask = cli();
+ l_mask |= 1u << (int32_t)kind;
+ sti(l_mask);
+}
+
void twi_init(void)
{
*pTWI_CONTROL = 0;
- asm("ssync;");
- *pTWI_CONTROL = TWI_ENA | 10U;
- *pTWI_CLKDIV = CLKHI(50) | CLKLOW(50);
+ ssync();
+ *pTWI_CONTROL = 20U;
+ *pTWI_CLKDIV = CLKHI(12) | CLKLOW(13);
*pTWI_INT_MASK = RCVSERV | XMTSERV | MERR | MCOMP;
*pTWI_INT_STAT = *pTWI_INT_STAT;
*pTWI_FIFO_CTL = XMTFLUSH | RCVFLUSH;
- asm("ssync;");
+ ssync();
+ *pTWI_FIFO_CTL = 0;
+
+ /* 割り込みハンドラをIVG12に登録 */
+ s_bfin_register_handler(ik_ivg12, s_bfin_twi_isr);
+ *pSIC_IMASK |= IRQ_TWI;
}
-/**
- * @brief TWI(I2C)バスに書き込む。
- *
- * @param slave_addr スレーブアドレス。
- * @param rstart スタートコンディション。
- * @param p_data データ。
- * @param write_cnt 書き込むデータバイト数。
- *
- * @retval NO_ERROR エラーなし。
- * @retval TWI_ERROR_NAK エラー。
- */
-int32_t twi_master_write(uint8_t slave_addr, int32_t rstart, const uint8_t* p_data, int32_t write_cnt)
+void twi_master_write(uint8_t slave_addr, int32_t rstart, const uint8_t* p_data, int32_t write_cnt)
{
- int32_t l_idx;
+ if(write_cnt <= 0) return;
- if (write_cnt <= 0) {
- return NO_ERROR;
- }
+ sf_twi_xfer_param.state = TWI_STATE_XFER;
+ sf_twi_xfer_param.xfer_dir = 1;
+ sf_twi_xfer_param.p_data = (uint8_t*)&p_data[1];
+ sf_twi_xfer_param.count = write_cnt - 1;
- *pTWI_FIFO_CTL = 0;
- *pTWI_INT_STAT = *pTWI_INT_STAT;
+ *pTWI_CONTROL |= TWI_ENA;
+ ssync();
+ *pTWI_INT_STAT = MCOMP | MERR | XMTSERV | RCVSERV;
*pTWI_MASTER_STAT = BUFWRERR | BUFRDERR | LOSTARB | ANAK | DNAK;
*pTWI_MASTER_ADDR = slave_addr;
-
- /*
- * Send first byte
- */
+ ssync();
+ // Send first byte
*pTWI_XMT_DATA8 = p_data[0];
- *pTWI_MASTER_CTL = TWI_COUNT(write_cnt) | MEN | (rstart ? RSTART : 0);
- asm("ssync;");
+ *pTWI_MASTER_CTL = TWI_COUNT(write_cnt) | FAST | MEN | (rstart != TWI_STOP ? RSTART : 0);
+}
- for (l_idx = 1; l_idx < write_cnt; l_idx++) {
- while(((*pTWI_INT_STAT & MERR) == 0U) && (*pTWI_FIFO_STAT == XMTSTAT)) {
- asm("ssync;");
- }
- *pTWI_XMT_DATA8 = p_data[l_idx];
- asm("ssync;");
- }
+void twi_master_read(uint8_t slave_addr, int32_t rstart, uint8_t* p_data, int32_t read_cnt)
+{
+ if(read_cnt <= 0) return;
- /*
- * 転送終了まで待機
- */
- while ((*pTWI_INT_STAT & MCOMP) == 0U) {
- asm("ssync;");
- }
+ sf_twi_xfer_param.state = TWI_STATE_XFER;
+ sf_twi_xfer_param.xfer_dir = 0;
+ sf_twi_xfer_param.p_data = p_data;
+ sf_twi_xfer_param.count = read_cnt;
- if ((*pTWI_INT_STAT & MERR) == 0U) {
- return NO_ERROR;
- } else {
- return TWI_ERROR_NAK;
- }
+ *pTWI_CONTROL |= TWI_ENA;
+ ssync();
+ *pTWI_INT_STAT = MCOMP | MERR | XMTSERV | RCVSERV;
+ *pTWI_MASTER_STAT = BUFWRERR | BUFRDERR | LOSTARB | ANAK | DNAK;
+ *pTWI_MASTER_ADDR = slave_addr;
+ ssync();
+ *pTWI_MASTER_CTL = TWI_COUNT(read_cnt) | FAST | MDIR | MEN | (rstart != TWI_STOP ? RSTART : 0);
}
+int32_t twi_master_xfer_state(void)
+{
+ return sf_twi_xfer_param.state;
+}
+
+__attribute__((interrupt_handler)) void s_bfin_twi_isr(void)
+{
+ uint16_t l_twi_stat = *pTWI_INT_STAT;
+ *pTWI_INT_STAT = l_twi_stat;
+ ssync();
+
+ if((l_twi_stat & MERR) != 0)
+ {
+ sf_twi_xfer_param.state = TWI_STATE_ERROR;
+ *pTWI_CONTROL &= ~TWI_ENA;
+ }
+ else if(sf_twi_xfer_param.state != TWI_STATE_ERROR)
+ {
+ if((l_twi_stat & MCOMP) != 0)
+ {
+ sf_twi_xfer_param.state = TWI_STATE_COMP;
+ *pTWI_CONTROL &= ~TWI_ENA;
+ }
+ else
+ {
+ if(0 == sf_twi_xfer_param.xfer_dir)
+ {
+ while((sf_twi_xfer_param.count > 0) && ((*pTWI_FIFO_STAT & RCVSTAT) != 0))
+ {
+ *sf_twi_xfer_param.p_data = *pTWI_RCV_DATA8;
+ sf_twi_xfer_param.p_data++;
+ sf_twi_xfer_param.count--;
+ ssync();
+ }
+ }
+ else
+ {
+ while((sf_twi_xfer_param.count > 0) && ((*pTWI_FIFO_STAT & XMTSTAT) != XMTSTAT))
+ {
+ *pTWI_XMT_DATA8 = *sf_twi_xfer_param.p_data;
+ sf_twi_xfer_param.p_data++;
+ sf_twi_xfer_param.count--;
+ ssync();
+ }
+ }
+ }
+ }
+}
#ifndef TWI_H
#define TWI_H
-#include <stdint.h>
+#define TWI_STATE_ERROR (-1)
+#define TWI_STATE_XFER (0)
+#define TWI_STATE_COMP (1)
-/* TWI用戻り値 */
-#define NO_ERROR (0)
-#define TWI_ERROR_NAK (-1)
+#define TWI_STOP (0)
+#define TWI_RSTART (1)
-/* twi_master_writeのrstart引数用定義 */
-#define TWI_STOP (0)
-#define TWI_RSTART (1)
-
-/**
- * @brief TWI(I2C)を初期化する。
- */
void twi_init(void);
-
-/**
- * @brief TWI(I2C)バスに書き込む。
- *
- * @param slave_addr スレーブアドレス。
- * @param rstart スタートコンディション。
- * @param p_data データ。
- * @param write_cnt 書き込むデータバイト数。
- *
- * @retval NO_ERROR エラーなし。
- * @retval TWI_ERROR_NAK エラー。
- */
-int32_t twi_master_write(uint8_t slave_addr, int32_t rstart, const uint8_t* p_data, int32_t write_cnt);
+void twi_master_write(uint8_t slave_addr, int32_t rstart, const uint8_t* p_data, int32_t write_cnt);
+void twi_master_read(uint8_t slave_addr, int32_t rstart, uint8_t* p_data, int32_t read_cnt);
+int32_t twi_master_xfer_state(void);
#endif
--- /dev/null
+/**
+ * @file uart.c
+ * @author Copyright(C) 2012 Shinichiro Nakamura
+ * @brief BlueTank ACB-BF592 Application Sample Codes.
+ */
+
+/*
+ * ===============================================================
+ * BlueTank
+ * ===============================================================
+ * Copyright (c) 2012 Shinichiro Nakamura
+ *
+ * Permission is hereby granted, free of charge, to any person
+ * obtaining a copy of this software and associated documentation
+ * files (the "Software"), to deal in the Software without
+ * restriction, including without limitation the rights to use,
+ * copy, modify, merge, publish, distribute, sublicense, and/or
+ * sell copies of the Software, and to permit persons to whom the
+ * Software is furnished to do so, subject to the following
+ * conditions:
+ *
+ * The above copyright notice and this permission notice shall be
+ * included in all copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
+ * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES
+ * OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
+ * NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT
+ * HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY,
+ * WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
+ * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
+ * OTHER DEALINGS IN THE SOFTWARE.
+ * ===============================================================
+ */
+
+#include <cdefBF592-A.h>
+#include <builtins.h>
+#include "uart.h"
+
+/* システムクロック(98.304MHz) */
+#define SCLOCK_HZ (98304000)
+
+/* ボーレート(115200bps) */
+#define UART0_BAUDRATE (115200)
+
+/* UART0_DLL/UART0_DLHの設定値 */
+#define UART0_DIVISOR (SCLOCK_HZ / 16 / UART0_BAUDRATE)
+
+void uart_init(void)
+{
+ /* UARTイネーブル */
+ *pUART0_GCTL = 1;
+
+ /* UART分周比の設定 */
+ *pUART0_LCR |= DLAB;
+ *pUART0_DLL = UART0_DIVISOR & 0xFF;
+ *pUART0_DLH = UART0_DIVISOR >> 8;
+ *pUART0_LCR &= ~DLAB;
+
+ /* UARTモード設定 パリティ無し 8bit 1ストップビット */
+ *pUART0_LCR = WLS(8);
+
+ /* UART割込み禁止 */
+ *pUART0_IER = 0;
+
+ /* PF11/PF12ピンをUARTに割り振る */
+ *pPORTF_MUX &= ~(PF11 | PF12); /* PF11,PF12を0にする */
+ *pPORTF_FER |= PF11 | PF12; /* PF11,PF12をUART0に割り振る */
+}
+
+void uart_putc(char ch)
+{
+ /* UART0 LSRのTHREが1になるまで待つ。1ならば送信レジスタ空き */
+ while (0 == (*pUART0_LSR & THRE)) {
+ ssync();
+ }
+ *pUART0_THR = ch; /* 一文字送信 */
+ ssync();
+}
+
--- /dev/null
+/**
+ * @file uart.h
+ * @author Copyright(C) 2012 Shinichiro Nakamura
+ * @brief BlueTank ACB-BF592 Application Sample Codes.
+ */
+
+/*
+ * ===============================================================
+ * BlueTank
+ * ===============================================================
+ * Copyright (c) 2012 Shinichiro Nakamura
+ *
+ * Permission is hereby granted, free of charge, to any person
+ * obtaining a copy of this software and associated documentation
+ * files (the "Software"), to deal in the Software without
+ * restriction, including without limitation the rights to use,
+ * copy, modify, merge, publish, distribute, sublicense, and/or
+ * sell copies of the Software, and to permit persons to whom the
+ * Software is furnished to do so, subject to the following
+ * conditions:
+ *
+ * The above copyright notice and this permission notice shall be
+ * included in all copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
+ * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES
+ * OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
+ * NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT
+ * HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY,
+ * WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
+ * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
+ * OTHER DEALINGS IN THE SOFTWARE.
+ * ===============================================================
+ */
+
+#ifndef UART_H
+#define UART_H
+
+void uart_init(void);
+void uart_putc(char ch);
+
+#endif
+
#include "at24c.h"
#include "uzume.h"
#include "mmc.h"
+#include "uart.h"
#define SCLOCK_HZ (100000000) /**< システムクロック(100MHz) */
#define DMA_SAMPLE_SIZE (256) /**< 1回のサンプルサイズ */
void uzume_init(UZUME *p, void *user_data)
{
+ uint8_t c;
+ bool sdc_detected;
FATFS fatfs;
#if 0
DIR dir;
*/
setup_pll(16, 4);
+ uart_init();
+
/*
* LEDを初期化する。
*/
/*
* SDカードをマウントする。
*/
+ pf_mount(&fatfs);
if (MMC_DETECT()) {
- if (pf_mount(&fatfs) != FR_OK) {
- lcd_goto(0, 0);
- lcd_puts("SDC FAIL");
- while (1) {
- }
- }
+ sdc_detected = true;
+ } else {
+ sdc_detected = false;
}
/*
led_write(LedTargetR, 0);
led_write(LedTargetG, 1);
lcd_goto(0, 1);
- lcd_puts("InitDone");
+ if (sdc_detected) {
+ lcd_puts("SDC: Yes");
+ } else {
+ lcd_puts("SDC: No ");
+ }
/*
* ミュートを解除する。
*/
ssm2603_mute(false);
+
+ /*
+ * AT24C test...
+ */
+ at24c_init();
+
+ lcd_goto(0, 1); lcd_puts("write.1."); at24c_write(0x00, 'a');
+ lcd_goto(0, 1); lcd_puts("write.2."); at24c_write(0x01, 'b');
+ lcd_goto(0, 1); lcd_puts("write.3."); at24c_write(0x02, 'c');
+
+ lcd_goto(0, 1);
+ lcd_puts("read.1..");
+ at24c_read(0x00, &c); lcd_goto(0, 1); lcd_putc(c);
+ lcd_puts("read.2..");
+ at24c_read(0x01, &c); lcd_goto(1, 1); lcd_putc(c);
+ lcd_puts("read.3..");
+ at24c_read(0x02, &c); lcd_goto(2, 1); lcd_putc(c);
}
void uzume_set_effect(UZUME *p, UZUME_EFFECT_FUNC effect)
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