diff options
Diffstat (limited to 'tinyusb/hw/bsp/rx/boards/gr_citrus/gr_citrus.c')
| -rwxr-xr-x | tinyusb/hw/bsp/rx/boards/gr_citrus/gr_citrus.c | 275 |
1 files changed, 0 insertions, 275 deletions
diff --git a/tinyusb/hw/bsp/rx/boards/gr_citrus/gr_citrus.c b/tinyusb/hw/bsp/rx/boards/gr_citrus/gr_citrus.c deleted file mode 100755 index caf5fd6f..00000000 --- a/tinyusb/hw/bsp/rx/boards/gr_citrus/gr_citrus.c +++ /dev/null @@ -1,275 +0,0 @@ -/* - * The MIT License (MIT) - * - * Copyright (c) 2021, Koji Kitayama - * - * 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. - * - * This file is part of the TinyUSB stack. - */ - -/* How to connect JLink and GR-CITRUS - * - * GR-CITRUS needs to solder some pads to enable JTAG interface. - * - Short the following pads individually with solder. - * - J4 - * - J5 - * - Short EMLE pad and 3.3V(GR-CITRUS pin name) with a wire. - * - * The pads are [the back side of GR-CITRUS](https://www.slideshare.net/MinaoYamamoto/grcitrusrx631/2). - * - * Connect the pins between GR-CITRUS and JLink as follows. - * - * | Function | GR-CITRUS pin | JLink pin No.| note | - * |:---------:|:-------------:|:------------:|:--------:| - * | VTref | 3.3V | 1 | | - * | TRST | 5 | 3 | | - * | GND | GND | 4 | | - * | TDI | 3 | 5 | | - * | TMS | 2 | 7 | | - * | TCK/FINEC | 14 | 9 | short J4 | - * | TDO | 9 | 13 | short J5 | - * | nRES | RST | 15 | | - * - * JLink firmware needs to update to V6.96 or newer version to avoid - * [a bug](https://forum.segger.com/index.php/Thread/7758-SOLVED-Bug-in-JLink-from-V6-88b-regarding-RX65N) - * regarding downloading. - */ - -#include "../board.h" -#include "iodefine.h" -#include "interrupt_handlers.h" - -#define IRQ_PRIORITY_CMT0 5 -#define IRQ_PRIORITY_USBI0 6 -#define IRQ_PRIORITY_SCI0 5 - -#define SYSTEM_PRCR_PRC1 (1<<1) -#define SYSTEM_PRCR_PRKEY (0xA5u<<8) - -#define CMT_PCLK 48000000 -#define CMT_CMCR_CKS_DIV_128 2 -#define CMT_CMCR_CMIE (1<<6) -#define MPC_PFS_ISEL (1<<6) - -#define SCI_PCLK 48000000 -#define SCI_SSR_FER (1<<4) -#define SCI_SSR_ORER (1<<5) - -#define SCI_SCR_TEIE (1u<<2) -#define SCI_SCR_RE (1u<<4) -#define SCI_SCR_TE (1u<<5) -#define SCI_SCR_RIE (1u<<6) -#define SCI_SCR_TIE (1u<<7) - -//--------------------------------------------------------------------+ -// SCI0 handling -//--------------------------------------------------------------------+ -typedef struct { - uint8_t *buf; - uint32_t cnt; -} sci_buf_t; -static volatile sci_buf_t sci0_buf[2]; - -void INT_Excep_SCI0_TXI0(void) -{ - uint8_t *buf = sci0_buf[0].buf; - uint32_t cnt = sci0_buf[0].cnt; - - if (!buf || !cnt) { - SCI0.SCR.BYTE &= ~(SCI_SCR_TEIE | SCI_SCR_TE | SCI_SCR_TIE); - return; - } - SCI0.TDR = *buf; - if (--cnt) { - ++buf; - } else { - buf = NULL; - SCI0.SCR.BIT.TIE = 0; - SCI0.SCR.BIT.TEIE = 1; - } - sci0_buf[0].buf = buf; - sci0_buf[0].cnt = cnt; -} - -void INT_Excep_SCI0_TEI0(void) -{ - SCI0.SCR.BYTE &= ~(SCI_SCR_TEIE | SCI_SCR_TE | SCI_SCR_TIE); -} - -void INT_Excep_SCI0_RXI0(void) -{ - uint8_t *buf = sci0_buf[1].buf; - uint32_t cnt = sci0_buf[1].cnt; - - if (!buf || !cnt || - (SCI0.SSR.BYTE & (SCI_SSR_FER | SCI_SSR_ORER))) { - sci0_buf[1].buf = NULL; - SCI0.SSR.BYTE = 0; - SCI0.SCR.BYTE &= ~(SCI_SCR_RE | SCI_SCR_RIE); - return; - } - *buf = SCI0.RDR; - if (--cnt) { - ++buf; - } else { - buf = NULL; - SCI0.SCR.BYTE &= ~(SCI_SCR_RE | SCI_SCR_RIE); - } - sci0_buf[1].buf = buf; - sci0_buf[1].cnt = cnt; -} - -//--------------------------------------------------------------------+ -// Forward USB interrupt events to TinyUSB IRQ Handler -//--------------------------------------------------------------------+ -void INT_Excep_USB0_USBI0(void) -{ - tud_int_handler(0); -} - -void board_init(void) -{ -#if CFG_TUSB_OS == OPT_OS_NONE - /* Enable CMT0 */ - SYSTEM.PRCR.WORD = SYSTEM_PRCR_PRKEY | SYSTEM_PRCR_PRC1; - MSTP(CMT0) = 0; - SYSTEM.PRCR.WORD = SYSTEM_PRCR_PRKEY; - /* Setup 1ms tick timer */ - CMT0.CMCNT = 0; - CMT0.CMCOR = CMT_PCLK / 1000 / 128; - CMT0.CMCR.WORD = CMT_CMCR_CMIE | CMT_CMCR_CKS_DIV_128; - IR(CMT0, CMI0) = 0; - IPR(CMT0, CMI0) = IRQ_PRIORITY_CMT0; - IEN(CMT0, CMI0) = 1; - CMT.CMSTR0.BIT.STR0 = 1; -#endif - - /* Unlock MPC registers */ - MPC.PWPR.BIT.B0WI = 0; - MPC.PWPR.BIT.PFSWE = 1; - /* LED PA0 */ - PORTA.PMR.BIT.B0 = 0U; - PORTA.PODR.BIT.B0 = 0U; - PORTA.PDR.BIT.B0 = 1U; - /* UART TXD0 => P20, RXD0 => P21 */ - PORT2.PMR.BIT.B0 = 1U; - PORT2.PCR.BIT.B0 = 1U; - MPC.P20PFS.BYTE = 0b01010; - PORT2.PMR.BIT.B1 = 1U; - MPC.P21PFS.BYTE = 0b01010; - /* USB VBUS -> P16 DPUPE -> P14 */ - PORT1.PMR.BIT.B4 = 1U; - PORT1.PMR.BIT.B6 = 1U; - MPC.P14PFS.BYTE = 0b10001; - MPC.P16PFS.BYTE = MPC_PFS_ISEL | 0b10001; - MPC.PFUSB0.BIT.PUPHZS = 1; - /* Lock MPC registers */ - MPC.PWPR.BIT.PFSWE = 0; - MPC.PWPR.BIT.B0WI = 1; - - IR(USB0, USBI0) = 0; - IPR(USB0, USBI0) = IRQ_PRIORITY_USBI0; - - /* Enable SCI0 */ - SYSTEM.PRCR.WORD = SYSTEM_PRCR_PRKEY | SYSTEM_PRCR_PRC1; - MSTP(SCI0) = 0; - SYSTEM.PRCR.WORD = SYSTEM_PRCR_PRKEY; - SCI0.BRR = (SCI_PCLK / (32 * 115200)) - 1; - IR(SCI0, RXI0) = 0; - IR(SCI0, TXI0) = 0; - IR(SCI0, TEI0) = 0; - IPR(SCI0, RXI0) = IRQ_PRIORITY_SCI0; - IPR(SCI0, TXI0) = IRQ_PRIORITY_SCI0; - IPR(SCI0, TEI0) = IRQ_PRIORITY_SCI0; - IEN(SCI0, RXI0) = 1; - IEN(SCI0, TXI0) = 1; - IEN(SCI0, TEI0) = 1; -} - -//--------------------------------------------------------------------+ -// Board porting API -//--------------------------------------------------------------------+ - -void board_led_write(bool state) -{ - PORTA.PODR.BIT.B0 = state ? 1 : 0; -} - -uint32_t board_button_read(void) -{ - return 0; -} - -int board_uart_read(uint8_t* buf, int len) -{ - sci0_buf[1].buf = buf; - sci0_buf[1].cnt = len; - SCI0.SCR.BYTE |= SCI_SCR_RE | SCI_SCR_RIE; - while (SCI0.SCR.BIT.RE) ; - return len - sci0_buf[1].cnt; -} - -int board_uart_write(void const *buf, int len) -{ - sci0_buf[0].buf = (uint8_t*)buf; - sci0_buf[0].cnt = len; - SCI0.SCR.BYTE |= SCI_SCR_TE | SCI_SCR_TIE; - while (SCI0.SCR.BIT.TE) ; - return len; -} - -#if CFG_TUSB_OS == OPT_OS_NONE -volatile uint32_t system_ticks = 0; -void INT_Excep_CMT0_CMI0(void) -{ - ++system_ticks; -} - -uint32_t board_millis(void) -{ - return system_ticks; -} -#else -uint32_t SystemCoreClock = 96000000; -#endif - -int close(int fd) -{ - (void)fd; - return -1; -} -int fstat(int fd, void *pstat) -{ - (void)fd; - (void)pstat; - return 0; -} -off_t lseek(int fd, off_t pos, int whence) -{ - (void)fd; - (void)pos; - (void)whence; - return 0; -} -int isatty(int fd) -{ - (void)fd; - return 1; -} |