topic DMA over EMC / SGPIOs in LPC Microcontrollers https://community.nxp.com/t5/LPC-Microcontrollers/DMA-over-EMC-SGPIOs/m-p/565700#M17146 <HTML><HEAD></HEAD><BODY><STRONG>Content originally posted in LPCWare by MaSt on Wed Aug 01 00:58:03 MST 2012</STRONG><BR /><SPAN>Hi,</SPAN><BR /><SPAN>is ist possible to DMA-transfer data from and to external S(D)RAM connected via EMC? As per User Manual Rev. 1.3 Fig. 1 there is no connection between GPDMA and EMC. I found no explicit statement of DMA support for EMC in datasheet/user manual. </SPAN><BR /><BR /><SPAN>Also confuses me, that SGPIO is also described as "not connected" to GPDMA in Fig. 1. But in the description of GPDMA (table 270) SGPIO14/15 are listed as possible BREQ-sources. Does anybody have more information or perhaps a practical experience with SGPIOs and DMA?</SPAN><BR /><SPAN>Thanks in advance.</SPAN></BODY></HTML> Wed, 15 Jun 2016 18:49:57 GMT lpcware 2016-06-15T18:49:57Z DMA over EMC / SGPIOs https://community.nxp.com/t5/LPC-Microcontrollers/DMA-over-EMC-SGPIOs/m-p/565700#M17146 <HTML><HEAD></HEAD><BODY><STRONG>Content originally posted in LPCWare by MaSt on Wed Aug 01 00:58:03 MST 2012</STRONG><BR /><SPAN>Hi,</SPAN><BR /><SPAN>is ist possible to DMA-transfer data from and to external S(D)RAM connected via EMC? As per User Manual Rev. 1.3 Fig. 1 there is no connection between GPDMA and EMC. I found no explicit statement of DMA support for EMC in datasheet/user manual. </SPAN><BR /><BR /><SPAN>Also confuses me, that SGPIO is also described as "not connected" to GPDMA in Fig. 1. But in the description of GPDMA (table 270) SGPIO14/15 are listed as possible BREQ-sources. Does anybody have more information or perhaps a practical experience with SGPIOs and DMA?</SPAN><BR /><SPAN>Thanks in advance.</SPAN></BODY></HTML> Wed, 15 Jun 2016 18:49:57 GMT https://community.nxp.com/t5/LPC-Microcontrollers/DMA-over-EMC-SGPIOs/m-p/565700#M17146 lpcware 2016-06-15T18:49:57Z