Create a new channel as a copy of main.
Rename main to:
Delete main? This cannot be undone.
#include "660m.h" void board_init(void) { SYSCFG->CFGR1 |= SYSCFG_CFGR1_I2C1_DMA_RMP; SYSCFG->CFGR1 &= ~(SYSCFG_CFGR1_SPI2_DMA_RMP); }