mirror of
https://gitee.com/Lyon1998/pikapython.git
synced 2025-01-22 17:12:55 +08:00
139 lines
5.9 KiB
C
139 lines
5.9 KiB
C
/******************************************************************************************************************************************
|
||
* <20>ļ<EFBFBD><C4BC><EFBFBD><EFBFBD><EFBFBD>: SWM320_dma.c
|
||
* <20><><EFBFBD><EFBFBD>˵<EFBFBD><CBB5>: SWM320<32><30>Ƭ<EFBFBD><C6AC><EFBFBD><EFBFBD>DMA<4D><41><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>
|
||
* <20><><EFBFBD><EFBFBD>֧<EFBFBD><D6A7>: http://www.synwit.com.cn/e/tool/gbook/?bid=1
|
||
* ע<><D7A2><EFBFBD><EFBFBD><EFBFBD><EFBFBD>:
|
||
* <20>汾<EFBFBD><E6B1BE><EFBFBD><EFBFBD>: V1.1.0 2017<31><37>10<31><30>25<32><35>
|
||
* <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD>¼:
|
||
*
|
||
*
|
||
*******************************************************************************************************************************************
|
||
* @attention
|
||
*
|
||
* THE PRESENT FIRMWARE WHICH IS FOR GUIDANCE ONLY AIMS AT PROVIDING CUSTOMERS WITH CODING INFORMATION
|
||
* REGARDING THEIR PRODUCTS IN ORDER FOR THEM TO SAVE TIME. AS A RESULT, SYNWIT SHALL NOT BE HELD LIABLE
|
||
* FOR ANY DIRECT, INDIRECT OR CONSEQUENTIAL DAMAGES WITH RESPECT TO ANY CLAIMS ARISING FROM THE CONTENT
|
||
* OF SUCH FIRMWARE AND/OR THE USE MADE BY CUSTOMERS OF THE CODING INFORMATION CONTAINED HEREIN IN CONN-
|
||
* -ECTION WITH THEIR PRODUCTS.
|
||
*
|
||
* COPYRIGHT 2012 Synwit Technology
|
||
*******************************************************************************************************************************************/
|
||
#include "SWM320.h"
|
||
#include "SWM320_dma.h"
|
||
|
||
/******************************************************************************************************************************************
|
||
* <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>: DMA_CHM_Config()
|
||
* <20><><EFBFBD><EFBFBD>˵<EFBFBD><CBB5>: DMAͨ<41><CDA8><EFBFBD><EFBFBD><EFBFBD>ã<EFBFBD><C3A3><EFBFBD><EFBFBD>ڴ洢<DAB4><E6B4A2><EFBFBD>䣨<EFBFBD><E4A3A8>Flash<73><68>RAM<41>䣩<EFBFBD><E4A3A9><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>
|
||
* <20><> <20><>: uint32_t chn ָ<><D6B8>Ҫ<EFBFBD><D2AA><EFBFBD>õ<EFBFBD>ͨ<EFBFBD><CDA8><EFBFBD><EFBFBD><EFBFBD><EFBFBD>Чֵ<D0A7><D6B5>DMA_CH0<48><30>DMA_CH1<48><31>DMA_CH2
|
||
* uint32_t src_addr Դ<><D4B4>ַ<EFBFBD><D6B7><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ֶ<EFBFBD><D6B6>룬<EFBFBD><EBA3AC><EFBFBD><EFBFBD>ַ<EFBFBD><D6B7><EFBFBD><EFBFBD><EFBFBD><EFBFBD>2λ<32><CEBB><EFBFBD><EFBFBD><EFBFBD><EFBFBD>00
|
||
* uint32_t src_addr_incr 0 <20>̶<EFBFBD><CCB6><EFBFBD>ַ 1 <20><>ַ<EFBFBD><D6B7><EFBFBD><EFBFBD>
|
||
* uint32_t dst_addr Ŀ<>ĵ<EFBFBD>ַ<EFBFBD><D6B7><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ֶ<EFBFBD><D6B6>룬<EFBFBD><EBA3AC><EFBFBD><EFBFBD>ַ<EFBFBD><D6B7><EFBFBD><EFBFBD><EFBFBD><EFBFBD>2λ<32><CEBB><EFBFBD><EFBFBD><EFBFBD><EFBFBD>00
|
||
* uint32_t dst_addr_incr 0 <20>̶<EFBFBD><CCB6><EFBFBD>ַ 1 <20><>ַ<EFBFBD><D6B7><EFBFBD><EFBFBD>
|
||
* uint32_t num_word Ҫ<><D2AA><EFBFBD>˵<EFBFBD><CBB5><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>1024
|
||
* uint32_t int_en <09>ж<EFBFBD>ʹ<EFBFBD>ܣ<EFBFBD>1 <20><><EFBFBD>ݰ<EFBFBD><DDB0><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ɺ<EFBFBD><C9BA><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ж<EFBFBD> 0 <20><><EFBFBD>ݰ<EFBFBD><DDB0><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ɺ<C9BA><F3B2BBB2><EFBFBD><EFBFBD>ж<EFBFBD>
|
||
* <20><> <20><>: <20><>
|
||
* ע<><D7A2><EFBFBD><EFBFBD><EFBFBD><EFBFBD>: <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>Ϊ<EFBFBD><CEAA>Ԫ<EFBFBD><D4AA><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ֽ<EFBFBD>
|
||
******************************************************************************************************************************************/
|
||
void DMA_CHM_Config(uint32_t chn, uint32_t src_addr, uint32_t src_addr_incr, uint32_t dst_addr, uint32_t dst_addr_incr, uint32_t num_word, uint32_t int_en)
|
||
{
|
||
DMA->EN = 1; //ÿ<><C3BF>ͨ<EFBFBD><CDA8><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>Լ<EFBFBD><D4BC><EFBFBD><EFBFBD><EFBFBD><EFBFBD>Ŀ<EFBFBD><C4BF>ؿ<EFBFBD><D8BF>ƣ<EFBFBD><C6A3><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ܿ<EFBFBD><DCBF>ؿ<EFBFBD><D8BF><EFBFBD><EFBFBD><EFBFBD>һֱ<D2BB><D6B1><EFBFBD><EFBFBD><EFBFBD><EFBFBD>
|
||
|
||
DMA_CH_Close(chn); //<2F><><EFBFBD><EFBFBD>ǰ<EFBFBD>ȹرո<D8B1>ͨ<EFBFBD><CDA8>
|
||
|
||
DMA->CH[chn].SRC = src_addr;
|
||
DMA->CH[chn].DST = dst_addr;
|
||
|
||
DMA->CH[chn].CR = ((num_word*4-1) << DMA_CR_LEN_Pos) |
|
||
(0 << DMA_CR_AUTORE_Pos);
|
||
|
||
DMA->CH[chn].AM = (src_addr_incr << DMA_AM_SRCAM_Pos) |
|
||
(dst_addr_incr << DMA_AM_DSTAM_Pos) |
|
||
(0 << DMA_AM_BURST_Pos);
|
||
|
||
DMA->IF = (1 << chn); //<2F><><EFBFBD><EFBFBD><EFBFBD>жϱ<D0B6>־
|
||
DMA->IE |= (1 << chn);
|
||
if(int_en) DMA->IM &= ~(1 << chn);
|
||
else DMA->IM |= (1 << chn);
|
||
|
||
if(int_en)
|
||
{
|
||
NVIC_EnableIRQ(DMA_IRQn);
|
||
}
|
||
else
|
||
{
|
||
//<2F><><EFBFBD>ܵ<EFBFBD><DCB5><EFBFBD>NVIC_DisalbeIRQ(DMA_IRQn)<29><><EFBFBD><EFBFBD>Ϊ<EFBFBD><CEAA><EFBFBD><EFBFBD>ͨ<EFBFBD><CDA8><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ʹ<EFBFBD><CAB9>DMA<4D>ж<EFBFBD>
|
||
}
|
||
}
|
||
|
||
/******************************************************************************************************************************************
|
||
* <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>: DMA_CH_Open()
|
||
* <20><><EFBFBD><EFBFBD>˵<EFBFBD><CBB5>: DMAͨ<41><CDA8><EFBFBD><EFBFBD><EFBFBD><EFBFBD>
|
||
* <20><> <20><>: uint32_t chn ָ<><D6B8>Ҫ<EFBFBD><D2AA><EFBFBD>õ<EFBFBD>ͨ<EFBFBD><CDA8><EFBFBD><EFBFBD><EFBFBD><EFBFBD>Чֵ<D0A7><D6B5>DMA_CH0<48><30>DMA_CH1<48><31>DMA_CH2
|
||
* <20><> <20><>: <20><>
|
||
* ע<><D7A2><EFBFBD><EFBFBD><EFBFBD><EFBFBD>: <20><>
|
||
******************************************************************************************************************************************/
|
||
void DMA_CH_Open(uint32_t chn)
|
||
{
|
||
DMA->CH[chn].CR |= (1 << DMA_CR_TXEN_Pos);
|
||
}
|
||
|
||
/******************************************************************************************************************************************
|
||
* <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>: DMA_CH_Close()
|
||
* <20><><EFBFBD><EFBFBD>˵<EFBFBD><CBB5>: DMAͨ<41><CDA8><EFBFBD>ر<EFBFBD>
|
||
* <20><> <20><>: uint32_t chn ָ<><D6B8>Ҫ<EFBFBD><D2AA><EFBFBD>õ<EFBFBD>ͨ<EFBFBD><CDA8><EFBFBD><EFBFBD><EFBFBD><EFBFBD>Чֵ<D0A7><D6B5>DMA_CH0<48><30>DMA_CH1<48><31>DMA_CH2
|
||
* <20><> <20><>: <20><>
|
||
* ע<><D7A2><EFBFBD><EFBFBD><EFBFBD><EFBFBD>: <20><>
|
||
******************************************************************************************************************************************/
|
||
void DMA_CH_Close(uint32_t chn)
|
||
{
|
||
DMA->CH[chn].CR &= ~(1 << DMA_CR_TXEN_Pos);
|
||
}
|
||
|
||
/******************************************************************************************************************************************
|
||
* <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>: DMA_CH_INTEn()
|
||
* <20><><EFBFBD><EFBFBD>˵<EFBFBD><CBB5>: DMA<4D>ж<EFBFBD>ʹ<EFBFBD>ܣ<EFBFBD><DCA3><EFBFBD><EFBFBD>ݰ<EFBFBD><DDB0><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ɺ<C9BA><F3B4A5B7>ж<EFBFBD>
|
||
* <20><> <20><>: uint32_t chn ָ<><D6B8>Ҫ<EFBFBD><D2AA><EFBFBD>õ<EFBFBD>ͨ<EFBFBD><CDA8><EFBFBD><EFBFBD><EFBFBD><EFBFBD>Чֵ<D0A7><D6B5>DMA_CH0<48><30>DMA_CH1<48><31>DMA_CH2
|
||
* <20><> <20><>: <20><>
|
||
* ע<><D7A2><EFBFBD><EFBFBD><EFBFBD><EFBFBD>: <20><>
|
||
******************************************************************************************************************************************/
|
||
void DMA_CH_INTEn(uint32_t chn)
|
||
{
|
||
DMA->IM &= ~(1 << chn);
|
||
}
|
||
|
||
/******************************************************************************************************************************************
|
||
* <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>: DMA_CH_INTDis()
|
||
* <20><><EFBFBD><EFBFBD>˵<EFBFBD><CBB5>: DMA<4D>жϽ<D0B6>ֹ<EFBFBD><D6B9><EFBFBD><EFBFBD><EFBFBD>ݰ<EFBFBD><DDB0><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ɺ<C9BA><F3B2BBB4><EFBFBD><EFBFBD>ж<EFBFBD>
|
||
* <20><> <20><>: uint32_t chn ָ<><D6B8>Ҫ<EFBFBD><D2AA><EFBFBD>õ<EFBFBD>ͨ<EFBFBD><CDA8><EFBFBD><EFBFBD><EFBFBD><EFBFBD>Чֵ<D0A7><D6B5>DMA_CH0<48><30>DMA_CH1<48><31>DMA_CH2
|
||
* <20><> <20><>: <20><>
|
||
* ע<><D7A2><EFBFBD><EFBFBD><EFBFBD><EFBFBD>: <20><>
|
||
******************************************************************************************************************************************/
|
||
void DMA_CH_INTDis(uint32_t chn)
|
||
{
|
||
DMA->IM |= (1 << chn);
|
||
}
|
||
|
||
/******************************************************************************************************************************************
|
||
* <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>: DMA_CH_INTClr()
|
||
* <20><><EFBFBD><EFBFBD>˵<EFBFBD><CBB5>: DMA<4D>жϱ<D0B6>־<EFBFBD><D6BE><EFBFBD><EFBFBD>
|
||
* <20><> <20><>: uint32_t chn ָ<><D6B8>Ҫ<EFBFBD><D2AA><EFBFBD>õ<EFBFBD>ͨ<EFBFBD><CDA8><EFBFBD><EFBFBD><EFBFBD><EFBFBD>Чֵ<D0A7><D6B5>DMA_CH0<48><30>DMA_CH1<48><31>DMA_CH2
|
||
* <20><> <20><>: <20><>
|
||
* ע<><D7A2><EFBFBD><EFBFBD><EFBFBD><EFBFBD>: <20><>
|
||
******************************************************************************************************************************************/
|
||
void DMA_CH_INTClr(uint32_t chn)
|
||
{
|
||
DMA->IF = (1 << chn);
|
||
}
|
||
|
||
/******************************************************************************************************************************************
|
||
* <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>: DMA_CH_INTStat()
|
||
* <20><><EFBFBD><EFBFBD>˵<EFBFBD><CBB5>: DMA<4D>ж<EFBFBD>״̬<D7B4><CCAC>ѯ
|
||
* <20><> <20><>: uint32_t chn ָ<><D6B8>Ҫ<EFBFBD><D2AA><EFBFBD>õ<EFBFBD>ͨ<EFBFBD><CDA8><EFBFBD><EFBFBD><EFBFBD><EFBFBD>Чֵ<D0A7><D6B5>DMA_CH0<48><30>DMA_CH1<48><31>DMA_CH2
|
||
* <20><> <20><>: uint32_t 1 <20><><EFBFBD>ݰ<EFBFBD><DDB0><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD> 0 <20><><EFBFBD>ݰ<EFBFBD><DDB0><EFBFBD>δ<EFBFBD><CEB4><EFBFBD><EFBFBD>
|
||
* ע<><D7A2><EFBFBD><EFBFBD><EFBFBD><EFBFBD>: <20><>
|
||
******************************************************************************************************************************************/
|
||
uint32_t DMA_CH_INTStat(uint32_t chn)
|
||
{
|
||
return (DMA->IF & (1 << chn)) ? 1 : 0;
|
||
}
|