bstanwell/ch32v20x-examples
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update 1.8

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qiyongshuang
2023-09-06 10:08:11 +08:00
parent b79c6ac80d
commit 64be955461
760 changed files with 42517 additions and 30957 deletions
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EVT/EXAM/I2C/I2C_DMA/User/main.c
+17 -15
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@@ -4,24 +4,24 @@
* Version : V1.0.0
* Date : 2021/06/06
* Description : Main program body.
*********************************************************************************
* Copyright (c) 2021 Nanjing Qinheng Microelectronics Co., Ltd.
* Attention: This software (modified or not) and binary are used for
* microcontroller manufactured by Nanjing Qinheng Microelectronics.
*******************************************************************************/
*********************************************************************************
* Copyright (c) 2021 Nanjing Qinheng Microelectronics Co., Ltd.
* Attention: This software (modified or not) and binary are used for
* microcontroller manufactured by Nanjing Qinheng Microelectronics.
*******************************************************************************/
/*
*@Note
I2C DMA, master/slave mode transceiver routine:
I2C1_SCL(PB8)\I2C1_SDA(PB9).
This example demonstrates the 7-bit address mode, Master sends via DMA,
and Slave receives via DMA.
Note: The two boards download the Master and Slave programs respectively,
and power on at the same time.
Hardware connection:PB8 -- PB8
PB9 -- PB9
*/
*I2C DMA, master/slave mode transceiver routine:
*I2C1_SCL(PB8)\I2C1_SDA(PB9).
*This example demonstrates the 7-bit address mode, Master sends via DMA,
*and Slave receives via DMA.
*Note: The two boards download the Master and Slave programs respectively,
*and power on at the same time.
*Hardware connection:PB8 -- PB8
* PB9 -- PB9
*
*/
@@ -178,9 +178,11 @@ int main(void)
uint8_t i ,t;
uint8_t j ;
NVIC_PriorityGroupConfig( NVIC_PriorityGroup_4 );
SystemCoreClockUpdate();
Delay_Init();
USART_Printf_Init( 460800 );
printf( "SystemClk:%d\r\n", SystemCoreClock );
printf( "ChipID:%08x\r\n", DBGMCU_GetCHIPID() );
#if (I2C_MODE == HOST_MODE)
printf( "IIC Host mode\r\n" );