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@@ -30,17 +30,17 @@
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#define IRQ_PRIORITY_CMT0 5
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#define IRQ_PRIORITY_USBI0 6
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#define IRQ_PRIORITY_SCI0 5
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#define IRQ_PRIORITY_SCI5 5
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#define SYSTEM_PRCR_PRC1 (1<<1)
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#define SYSTEM_PRCR_PRKEY (0xA5u<<8)
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#define CMT_PCLK 48000000
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#define CMT_PCLK 60000000
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#define CMT_CMCR_CKS_DIV_128 2
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#define CMT_CMCR_CMIE (1<<6)
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#define MPC_PFS_ISEL (1<<6)
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#define SCI_PCLK 48000000
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#define SCI_PCLK 60000000
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#define SCI_SSR_FER (1<<4)
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#define SCI_SSR_ORER (1<<5)
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@@ -49,83 +49,100 @@
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#define SCI_SCR_TE (1u<<5)
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#define SCI_SCR_RIE (1u<<6)
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#define SCI_SCR_TIE (1u<<7)
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#define INT_Excep_SCI5_TEI5 INT_Excep_ICU_GROUPBL0
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#define IRQ_USB0_USBI0 62
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#define SLIBR_USBI0 SLIBR185
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#define IPR_USB0_USBI0 IPR_PERIB_INTB185
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#define INT_Excep_USB0_USBI0 INT_Excep_PERIB_INTB185
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void HardwareSetup(void)
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{
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/*
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BSC.CS0MOD.WORD = 0x1234;
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BSC.CS7CNT.WORD = 0x5678;
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FLASH.ROMCIV.WORD = 1;
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while (FLASH.ROMCIV.WORD) ;
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FLASH.ROMCE.WORD = 1;
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while (!FLASH.ROMCE.WORD) ;
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SCI0.SCR.BIT.TE = 0;
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SCI0.SCR.BIT.RE = 0;
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SCI0.SCR.BIT.TE = 1;
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SCI2.SSR.BIT.PER = 0;
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SYSTEM.PRCR.WORD = 0xA503u;
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if (!SYSTEM.RSTSR1.BYTE) {
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RTC.RCR4.BYTE = 0;
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RTC.RCR3.BYTE = 12;
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while (12 != RTC.RCR3.BYTE) ;
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}
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SYSTEM.SOSCCR.BYTE = 1;
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TMR0.TCR.BYTE = 0x12;
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TMR1.TCR.BYTE = 0x12;
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TMR2.TCR.BYTE = 0x12;
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if (SYSTEM.HOCOCR.BYTE) {
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SYSTEM.HOCOCR.BYTE = 0;
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while (!SYSTEM.OSCOVFSR.BIT.HCOVF) ;
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}
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SYSTEM.PLLCR.WORD = 0x1D10u; /* HOCO x 15 */
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SYSTEM.PLLCR2.BYTE = 0;
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while (!SYSTEM.OSCOVFSR.BIT.PLOVF) ;
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P0.DDR.BYTE = 0x12;
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P1.DDR.BYTE = 0x12;
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*/
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SYSTEM.SCKCR.LONG = 0x21C11222u;
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SYSTEM.SCKCR2.WORD = 0x0041u;
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SYSTEM.ROMWT.BYTE = 0x02u;
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while (0x02u != SYSTEM.ROMWT.BYTE) ;
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SYSTEM.SCKCR3.WORD = 0x400u;
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SYSTEM.PRCR.WORD = 0xA500u;
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}
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//--------------------------------------------------------------------+
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// SCI0 handling
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// SCI handling
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//--------------------------------------------------------------------+
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typedef struct {
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uint8_t *buf;
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uint32_t cnt;
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} sci_buf_t;
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static volatile sci_buf_t sci0_buf[2];
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static volatile sci_buf_t sci_buf[2];
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void INT_Excep_SCI0_TXI0(void)
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void INT_Excep_SCI5_TXI5(void)
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{
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uint8_t *buf = sci0_buf[0].buf;
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uint32_t cnt = sci0_buf[0].cnt;
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uint8_t *buf = sci_buf[0].buf;
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uint32_t cnt = sci_buf[0].cnt;
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if (!buf || !cnt) {
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SCI0.SCR.BYTE &= ~(SCI_SCR_TEIE | SCI_SCR_TE | SCI_SCR_TIE);
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SCI5.SCR.BYTE &= ~(SCI_SCR_TEIE | SCI_SCR_TE | SCI_SCR_TIE);
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return;
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}
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SCI0.TDR = *buf;
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SCI5.TDR = *buf;
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if (--cnt) {
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++buf;
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} else {
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buf = NULL;
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SCI0.SCR.BIT.TIE = 0;
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SCI0.SCR.BIT.TEIE = 1;
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SCI5.SCR.BIT.TIE = 0;
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SCI5.SCR.BIT.TEIE = 1;
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}
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sci0_buf[0].buf = buf;
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sci0_buf[0].cnt = cnt;
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sci_buf[0].buf = buf;
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sci_buf[0].cnt = cnt;
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}
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void INT_Excep_SCI0_TEI0(void)
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void INT_Excep_SCI5_TEI5(void)
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{
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SCI0.SCR.BYTE &= ~(SCI_SCR_TEIE | SCI_SCR_TE | SCI_SCR_TIE);
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SCI5.SCR.BYTE &= ~(SCI_SCR_TEIE | SCI_SCR_TE | SCI_SCR_TIE);
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}
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void INT_Excep_SCI0_RXI0(void)
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void INT_Excep_SCI5_RXI5(void)
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{
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uint8_t *buf = sci0_buf[1].buf;
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uint32_t cnt = sci0_buf[1].cnt;
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uint8_t *buf = sci_buf[1].buf;
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uint32_t cnt = sci_buf[1].cnt;
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if (!buf || !cnt ||
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(SCI0.SSR.BYTE & (SCI_SSR_FER | SCI_SSR_ORER))) {
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sci0_buf[1].buf = NULL;
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SCI0.SSR.BYTE = 0;
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SCI0.SCR.BYTE &= ~(SCI_SCR_RE | SCI_SCR_RIE);
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(SCI5.SSR.BYTE & (SCI_SSR_FER | SCI_SSR_ORER))) {
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sci_buf[1].buf = NULL;
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SCI5.SSR.BYTE = 0;
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SCI5.SCR.BYTE &= ~(SCI_SCR_RE | SCI_SCR_RIE);
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return;
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}
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*buf = SCI0.RDR;
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*buf = SCI5.RDR;
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if (--cnt) {
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++buf;
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} else {
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buf = NULL;
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SCI0.SCR.BYTE &= ~(SCI_SCR_RE | SCI_SCR_RIE);
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SCI5.SCR.BYTE &= ~(SCI_SCR_RE | SCI_SCR_RIE);
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}
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sci0_buf[1].buf = buf;
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sci0_buf[1].cnt = cnt;
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sci_buf[1].buf = buf;
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sci_buf[1].cnt = cnt;
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}
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//--------------------------------------------------------------------+
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@@ -138,6 +155,10 @@ void INT_Excep_USB0_USBI0(void)
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void board_init(void)
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{
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/* setup software configurable interrupts */
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ICU.SLIBR_USBI0.BYTE = IRQ_USB0_USBI0;
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ICU.SLIPRCR.BYTE = 1;
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#if CFG_TUSB_OS == OPT_OS_NONE
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/* Enable CMT0 */
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SYSTEM.PRCR.WORD = SYSTEM_PRCR_PRKEY | SYSTEM_PRCR_PRC1;
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@@ -156,43 +177,49 @@ void board_init(void)
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/* Unlock MPC registers */
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MPC.PWPR.BIT.B0WI = 0;
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MPC.PWPR.BIT.PFSWE = 1;
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/* LED PA0 */
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PORTA.PMR.BIT.B0 = 0U;
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PORTA.PODR.BIT.B0 = 0U;
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PORTA.PDR.BIT.B0 = 1U;
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/* UART TXD0 => P20, RXD0 => P21 */
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PORT2.PMR.BIT.B0 = 1U;
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PORT2.PCR.BIT.B0 = 1U;
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MPC.P20PFS.BYTE = 0b01010;
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PORT2.PMR.BIT.B1 = 1U;
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MPC.P21PFS.BYTE = 0b01010;
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/* USB VBUS -> P16 DPUPE -> P14 */
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PORT1.PMR.BIT.B4 = 1U;
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// SW PB1
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PORTB.PMR.BIT.B1 = 0U;
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PORTB.PDR.BIT.B1 = 0U;
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// LED PD6
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PORTD.PODR.BIT.B6 = 1U;
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PORTD.ODR1.BIT.B4 = 1U;
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PORTD.PMR.BIT.B6 = 0U;
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PORTD.PDR.BIT.B6 = 1U;
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/* UART TXD5 => PA4, RXD5 => PA3 */
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PORTA.PMR.BIT.B4 = 1U;
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PORTA.PCR.BIT.B4 = 1U;
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MPC.PA4PFS.BYTE = 0b01010;
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PORTA.PMR.BIT.B3 = 1U;
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MPC.PA5PFS.BYTE = 0b01010;
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/* USB VBUS -> P16 */
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PORT1.PMR.BIT.B6 = 1U;
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MPC.P14PFS.BYTE = 0b10001;
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MPC.P16PFS.BYTE = MPC_PFS_ISEL | 0b10001;
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// MPC.PFUSB0.BIT.PUPHZS = 1;
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/* Lock MPC registers */
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MPC.PWPR.BIT.PFSWE = 0;
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MPC.PWPR.BIT.B0WI = 1;
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// IR(USB0, USBI0) = 0;
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// IPR(USB0, USBI0) = IRQ_PRIORITY_USBI0;
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/* Enable SCI5 */
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SYSTEM.PRCR.WORD = SYSTEM_PRCR_PRKEY | SYSTEM_PRCR_PRC1;
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MSTP(SCI5) = 0;
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SYSTEM.PRCR.WORD = SYSTEM_PRCR_PRKEY;
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SCI5.SEMR.BIT.ABCS = 1;
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SCI5.SEMR.BIT.BGDM = 1;
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SCI5.BRR = (SCI_PCLK / (8 * 115200)) - 1;
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IR(SCI5, RXI5) = 0;
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IR(SCI5, TXI5) = 0;
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IS(SCI5, TEI5) = 0;
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IR(ICU, GROUPBL0) = 0;
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IPR(SCI5, RXI5) = IRQ_PRIORITY_SCI5;
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IPR(SCI5, TXI5) = IRQ_PRIORITY_SCI5;
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IPR(ICU,GROUPBL0) = IRQ_PRIORITY_SCI5;
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IEN(SCI5, RXI5) = 1;
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IEN(SCI5, TXI5) = 1;
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IEN(ICU,GROUPBL0) = 1;
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EN(SCI5, TEI5) = 1;
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/* Enable SCI0 */
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SYSTEM.PRCR.WORD = SYSTEM_PRCR_PRKEY | SYSTEM_PRCR_PRC1;
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MSTP(SCI0) = 0;
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SYSTEM.PRCR.WORD = SYSTEM_PRCR_PRKEY;
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SCI0.BRR = (SCI_PCLK / (32 * 115200)) - 1;
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// IR(SCI0, RXI0) = 0;
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// IR(SCI0, TXI0) = 0;
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// IR(SCI0, TEI0) = 0;
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// IPR(SCI0, RXI0) = IRQ_PRIORITY_SCI0;
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// IPR(SCI0, TXI0) = IRQ_PRIORITY_SCI0;
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// IPR(SCI0, TEI0) = IRQ_PRIORITY_SCI0;
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// IEN(SCI0, RXI0) = 1;
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// IEN(SCI0, TXI0) = 1;
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// IEN(SCI0, TEI0) = 1;
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/* setup USBI0 interrupt. */
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IR(USB0, USBI0) = 0;
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IPR(USB0, USBI0) = IRQ_PRIORITY_USBI0;
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}
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//--------------------------------------------------------------------+
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@@ -201,29 +228,29 @@ void board_init(void)
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void board_led_write(bool state)
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{
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PORTA.PODR.BIT.B0 = state ? 1 : 0;
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PORTD.PODR.BIT.B6 = state ? 0 : 1;
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}
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uint32_t board_button_read(void)
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{
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return 0;
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return PORTB.PIDR.BIT.B1 ? 0 : 1;
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}
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int board_uart_read(uint8_t* buf, int len)
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{
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sci0_buf[1].buf = buf;
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sci0_buf[1].cnt = len;
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SCI0.SCR.BYTE |= SCI_SCR_RE | SCI_SCR_RIE;
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while (SCI0.SCR.BIT.RE) ;
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return len - sci0_buf[1].cnt;
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sci_buf[1].buf = buf;
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sci_buf[1].cnt = len;
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SCI5.SCR.BYTE |= SCI_SCR_RE | SCI_SCR_RIE;
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while (SCI5.SCR.BIT.RE) ;
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return len - sci_buf[1].cnt;
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}
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int board_uart_write(void const *buf, int len)
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{
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sci0_buf[0].buf = (uint8_t*)buf;
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sci0_buf[0].cnt = len;
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SCI0.SCR.BYTE |= SCI_SCR_TE | SCI_SCR_TIE;
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while (SCI0.SCR.BIT.TE) ;
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sci_buf[0].buf = (uint8_t*)buf;
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sci_buf[0].cnt = len;
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SCI5.SCR.BYTE |= SCI_SCR_TE | SCI_SCR_TIE;
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while (SCI5.SCR.BIT.TE) ;
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return len;
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}
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@@ -239,5 +266,5 @@ uint32_t board_millis(void)
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return system_ticks;
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}
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#else
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uint32_t SystemCoreClock = 96000000;
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uint32_t SystemCoreClock = 120000000;
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#endif
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