Hi.
I am using a TMS570LS1227PGEQQ1
I enable SCI driver.
SCI base 0xFFF7E500U
In sciInit()
the init is :
/** - bring SCI out of reset */
sciREG->GCR0 = 1U;
sciREG->GCR1 = (0 << 7); /* stay in reset */
/** - Disable all interrupts */
sciREG->CLRINT = 0xFFFFFFFFU;
sciREG->CLRINTLVL = 0xFFFFFFFFU;
pinMuxReg->PINMUX7 = PINMUX_PIN_38_SCIRX;
pinMuxReg->PINMUX8 = PINMUX_PIN_39_SCITX;
/** - global control 1 */
sciREG->GCR1 = (1 << 25) /* enable transmit */
| (1 << 24) /* enable receive */
| (0 << 16) /* loop-back disabled 0*/
| (1 << 5) /* internal clock (device has no clock pin) */
| (0 << 4) /* number of stop bits */
| (0 << 3) /* even parity, otherwise odd */
| (0 << 2) /* enable parity */
| (1 << 1); /* asynchronous timing mode */
/** - set baudrate */
sciREG->BAUD = 1041; /* baudrate */
/** - transmission length */
sciREG->LENGTH = 8 - 1; /* length */
/** - set SCI pins functional mode */
sciREG->FUN = (1 << 2) /* tx pin */
| (1 << 1) /* rx pin */
| (0); /* clk pin */
/** - set SCI pins default output value */
sciREG->DOUT = (0 << 2) /* tx pin */
| (0 << 1) /* rx pin */
| (0); /* clk pin */
/** - set SCI pins output direction */
sciREG->DIR = (0 << 2) /* tx pin */
| (0 << 1) /* rx pin */
| (0); /* clk pin */
/** - set SCI pins open drain enable */
sciREG->ODR = (0 << 2) /* tx pin */
| (0 << 1) /* rx pin */
| (0); /* clk pin */
/** - set SCI pins pullup/pulldown enable */
sciREG->PD = (0 << 2) /* tx pin */
| (0 << 1) /* rx pin */
| (0); /* clk pin */
/** - set SCI pins pullup/pulldown select */
sciREG->PSL = (1 << 2) /* tx pin */
| (1 << 1) /* rx pin */
| (1); /* clk pin */
/** - set interrupt level */
sciREG->SETINTLVL = (0 << 26) /* Framing error */
| (0 << 25) /* Overrun error */
| (0 << 24) /* Parity error */
| (0 << 9) /* Receive */
| (0 << 8) /* Transmit */
| (0 << 1) /* Wakeup */
| (0); /* Break detect */
/** - set interrupt enable */
sciREG->SETINT = (0 << 26) /* Framing error */
| (0 << 25) /* Overrun error */
| (0 << 24) /* Parity error */
| (0 << 9) /* Receive */
| (0 << 1) /* Wakeup */
| (0); /* Break detect */
/** - initialize global transfer variables */
g_sciTransfer[0].mode = 0 << 8;
g_sciTransfer[0].length = 0;
/** - initialize global transfer variables */
g_sciTransfer[1].mode = 0 << 8;
g_sciTransfer[1].length = 0;
/** - Finaly start SCI */
sciREG->GCR1 |= (1 << 7);
The problem in my code I call sciSendByte function, the SCITP register is well fill by the data, but when I check the line with and oscillo, I don't see no data transmitted.
Can anybody help me ?
Thank you.
