huxi
125 lines
2.7 KiB
C
125 lines
2.7 KiB
C
#ifdef SUPPORT_MS_EXTENSIONS
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#pragma bss_seg(".debug_uart_config.data.bss")
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#pragma data_seg(".debug_uart_config.data")
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#pragma const_seg(".debug_uart_config.text.const")
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#pragma code_seg(".debug_uart_config.text")
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#endif
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#include "app_config.h"
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#include "cpu/includes.h"
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#include "gpio_config.h"
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#if CONFIG_DEBUG_ENABLE || CONFIG_DEBUG_LITE_ENABLE
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#define DEBUG_UART_NUM 0
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static u8 uart_mode = 0; //0:typical putbyte, 1:exception putbyte
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void debug_uart_init()
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{
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struct uart_config debug_uart_config = {
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.baud_rate = TCFG_DEBUG_UART_BAUDRATE,
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.tx_pin = TCFG_DEBUG_UART_TX_PIN,
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.rx_pin = -1,
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};
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//br29 uart0无dma
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#if 0//def CONFIG_CPU_BR29
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JL_PORTA->OUT |= BIT(5);
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JL_PORTA->DIR &= ~BIT(5);
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JL_OMAP->PA5_OUT = FO_UART0_TX;
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JL_UART0->TX_CON0 = BIT(13);
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JL_UART0->TX_CON0 &= ~BIT(0);
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JL_UART0->TX_CON0 |= BIT(13);
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JL_UART0->BAUD = (12000000 / TCFG_DEBUG_UART_BAUDRATE) / 4 - 1;
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JL_UART0->TX_CON0 |= BIT(13) | BIT(0);
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JL_UART0->BUF = ' ';
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#else
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uart_init(DEBUG_UART_NUM, &debug_uart_config);
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#endif
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}
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static void __putbyte(char a)
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{
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/* if(a == '\n'){ */
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/* uart_putbyte(DEBUG_UART_NUM, '\r'); */
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/* } */
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#if 0
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int i = 0;
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while ((JL_UART0->TX_CON0 & BIT(15)) == 0) {
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i++;
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if (i > 100000) {
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break;
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}
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};
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JL_UART0->TX_CON0 |= BIT(13);
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__asm__ volatile("csync");
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JL_UART0->BUF = a;
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#else
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uart_log_putbyte(DEBUG_UART_NUM, a);
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#endif
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}
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/* --------------------------------------------------------------------------*/
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/**
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* @brief 通用打印putbyte函数，用于SDK调试
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*
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* @param a char
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*/
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/* ----------------------------------------------------------------------------*/
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void putbyte(char a)
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{
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#if 0//def CONFIG_CPU_BR29
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if (!(JL_UART0->CON0 & BIT(0))) {
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return;
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}
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u32 i = 0x10000;
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while (((JL_UART0->CON0 & BIT(15)) == 0) && (0 != i)) { //TX IDLE
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i--;
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}
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JL_UART0->CON0 |= BIT(13); //清Tx pending
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JL_UART0->BUF = a;
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__asm__ volatile("csync");
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#else
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if (uart_mode == 0) {
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__putbyte(a);
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}
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#endif
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}
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/* --------------------------------------------------------------------------*/
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/**
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* @brief 特俗场景putbyte函数，暂用于异常服务函数
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* 调用此函数后，通用putbyte函数会停用，防止打印冲突。
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* @param a char
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*/
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/* ----------------------------------------------------------------------------*/
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//excpt默认使用内部打印函数，使用uart0，放RAM。
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//若出现异常无打印情况，考虑打开此函数，放Flash。
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#if 0
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void excpt_putbyte(char a)
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{
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uart_mode = 1;
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__putbyte(a);
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}
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#endif
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#else
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void putbyte(char a)
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{
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}
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#endif
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