使用的CH573串口1接收數(shù)據(jù)，每接收一字節(jié)數(shù)據(jù)要調(diào)用void uart_receive_input(unsigned char value)函數(shù)將輸入放入緩存區(qū)處理，字節(jié)數(shù)少的話處理起來(lái)沒(méi)問(wèn)題，但是如果接收的是一個(gè)256字節(jié)的數(shù)據(jù)包，接受的數(shù)據(jù)好像不完整，校驗(yàn)會(huì)不通過(guò)，請(qǐng)問(wèn)要接收256字節(jié)的數(shù)據(jù)包，甚至512字節(jié)，每個(gè)字節(jié)還要調(diào)用函數(shù)放入緩存區(qū)，串口終端應(yīng)該怎樣寫(xiě)才能接收完整。
第一個(gè)函數(shù)是單字節(jié)暫存，第二個(gè)函數(shù)是多字節(jié)暫存，附上我的串口中斷函數(shù)，請(qǐng)指出不足，謝謝。
void?uart_receive_input(unsigned?char?value)//單字節(jié)暫存
{
????
????if(1?==?rx_buf_out?-?rx_buf_in)?{
????????//串口接收緩存已滿
????}else?if((rx_buf_in?>?rx_buf_out)?&&?((rx_buf_in?-?rx_buf_out)?>=?sizeof(wifi_uart_rx_buf)))?{
????????//串口接收緩存已滿
????}else?{
????????//串口接收緩存未滿
????????if(rx_buf_in?>=?(unsigned?char?*)(wifi_uart_rx_buf?+?sizeof(wifi_uart_rx_buf)))?{
????????????rx_buf_in?=?(unsigned?char?*)(wifi_uart_rx_buf);
????????}
????????
????????*rx_buf_in?++?=?value;
????}
}
void?uart_receive_buff_input(unsigned?char?value[],?unsigned?short?data_len)//多字節(jié)暫存
{
????
????unsigned?short?i?=?0;
????for(i?=?0;?i?<?data_len;?i++)?{
????????uart_receive_input(value[i]);
????}
}
__attribute__((interrupt("WCH-Interrupt-fast")))
__attribute__((section(".highcode")))
void?UART1_IRQHandler(?void?)????????//?UART1?中斷
{
????UINT8V?i?=?0;
????UINT8V?Recv;
????switch?(?UART1_GetITFlag()?)
????{
????????case?UART_II_LINE_STAT?:????????//?線路狀態(tài)錯(cuò)誤
????????{
????????????UART1_GetLinSTA();
????????????break;
????????}
????????case?UART_II_RECV_RDY?:??????????//?數(shù)據(jù)達(dá)到設(shè)置觸發(fā)點(diǎn)
????????????for?(?i?=?0?;?i?!=?trigB_UART_Wifi;?i++?)
????????????{
????????????????Recv?=?R8_UART1_RBR;
????????????????uart_receive_input(Recv);
????????????}
????????break;
????????case?UART_II_RECV_TOUT?:?????????//?接收超時(shí)，暫時(shí)一幀數(shù)據(jù)接收完成
????????????i?=?UART1_RecvString(?Wifi_RxBuff?);
????????????uart_receive_buff_input(Wifi_RxBuff,i);
????????????memset(Wifi_RxBuff,0,i);
????????break;
????????case?UART_II_THR_EMPTY?:?????????//?發(fā)送緩存區(qū)空，可繼續(xù)發(fā)送
????????break;
????????case?UART_II_MODEM_CHG?:?????????//?只支持串口0
????????break;
????????default?:
????????break;
????}
}
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