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fix gpio initialization for uart2

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This commit is contained in:
Mariano Alvira 2011-07-09 14:33:03 -04:00
parent 6d96721ac4
commit 4cf9514aa9
1 changed files with 8 additions and 8 deletions
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16
cpu/mc1322x/src/default_lowlevel.c
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@ -100,12 +100,12 @@ void uart2_init(volatile uint16_t inc, volatile uint16_t mod, volatile uint8_t s
UART2->BR = ( inc << 16 ) | mod;
/* TX and CTS as outputs */
GPIO->PAD_DIR_SET.GPIO_14 = 1;
GPIO->PAD_DIR_SET.GPIO_16 = 1;
GPIO->PAD_DIR_SET.GPIO_18 = 1;
GPIO->PAD_DIR_SET.GPIO_20 = 1;
/* RX and RTS as inputs */
GPIO->PAD_DIR_RESET.GPIO_15 = 1;
GPIO->PAD_DIR_RESET.GPIO_17 = 1;
GPIO->PAD_DIR_RESET.GPIO_19 = 1;
GPIO->PAD_DIR_RESET.GPIO_21 = 1;
/* see Section 11.5.1.2 Alternate Modes */
/* you must enable the peripheral first BEFORE setting the function in GPIO_FUNC_SEL */
@ -116,8 +116,8 @@ void uart2_init(volatile uint16_t inc, volatile uint16_t mod, volatile uint8_t s
*UART2_UCON = (1 << 0) | (1 << 1) ; /* enable receive, transmit, and both interrupts */
*UART2_URXCON = 30; /* interrupt when fifo is nearly full */
u2_rx_head = 0; u2_rx_tail = 0;
#elif UART2_RX_BUFFERSIZE < 32 /* enable receive, transmit, flow control, disable rx interrupt */
*UART2_UCON = (1 << 0) | (1 << 1) | (1 << 12) | (1 << 14);
#elif UART2_RX_BUFFERSIZE < 32 /* enable receive, transmit, disable flow control, disable rx interrupt */
*UART2_UCON = (1 << 0) | (1 << 1) | (0 << 12) | (1 << 14);
*UART2_UCTS = UART2_RX_BUFFERSIZE; /* drop cts when tx buffer at trigger level */
*GPIO_FUNC_SEL1 = ( (0x01 << (0*2)) | (0x01 << (1*2)) ); /* set GPIO17-16 to UART2 CTS and RTS */
#else
@ -128,8 +128,8 @@ void uart2_init(volatile uint16_t inc, volatile uint16_t mod, volatile uint8_t s
set_bit(*UART2_UCON,UCON_SAMP);
/* set GPIO15-14 to UART (UART2 TX and RX)*/
GPIO->FUNC_SEL.GPIO_14 = 1;
GPIO->FUNC_SEL.GPIO_15 = 1;
GPIO->FUNC_SEL.GPIO_18 = 1;
GPIO->FUNC_SEL.GPIO_19 = 1;
/* interrupt when there are this number or more bytes free in the TX buffer*/
*UART2_UTXCON = 16;